CN102365875A

CN102365875A - Personal acoustic device position determination

Info

Publication number: CN102365875A
Application number: CN2010800142106A
Authority: CN
Inventors: B·D·伯奇; D·M·高尔; H·格林伯奇尔; E·C·约翰森
Original assignee: Bose Corp
Current assignee: Bose Corp
Priority date: 2009-03-30
Filing date: 2010-03-29
Publication date: 2012-02-29
Anticipated expiration: 2030-03-29
Also published as: WO2010117714A1; EP2415276B1; CN102365875B; EP2415276A1

Abstract

Apparatus and method for determining an operating state of an earpiece of a personal acoustic device and/or the entirety of the personal acoustic device by analyzing signals output by at least an inner microphone disposed within a cavity of a casing of the earpiece and an outer microphone disposed on the personal acoustic device in a manner acoustically coupling it to the environment outside the casing of the earpiece. Apparatus and method for determining an operating state of an earpiece of a personal acoustic device and/or the entirety of the personal acoustic device through tests to determine the current operating state, wherein the tests differ depending on a current power mode of the personal acoustic device, and wherein at least one lower power test is employed during at least one lower power mode. Apparatus and method for determining an operating state of a personal acoustic device by receiving a signal from one or more movement sensors indicating movement detected by the one or more movement sensors, wherein the one or more movement sensors are disposed on portions of the personal acoustic device structured to be worn on a user's head to enable the one or more movement sensors to detect rotational movements of a user's head when the personal acoustic device is in position on the user's head such that a casing of the personal acoustic device is adjacent an ear of the user. Apparatus and method for determining an operating state of a personal acoustic device by receiving signal from first and second movement sensors indicating movement detected by each, wherein the first movement sensor is disposed on a portion of the personal acoustic device structured to be worn on a user's head to enable the first movement sensors to detect movements of a user's head when the personal acoustic device is in position on the user's head such that a casing of the personal acoustic device is adjacent an ear of the user.

Description

Individual's acoustic equipment position is confirmed

Technical field

At least one receiver that the disclosure relates to individual acoustic equipment is confirmed to arrive the ambient sound of this ear with the acoustically output sound and/or with change to this ear with respect to the placement of user's ear.

Background technology

(for example listen to the audio frequency that provides with electrical way; Audio frequency from CD Player, broadcasting or MP3 player) people, simply seek with given environment in the people that isolates with acoustically of the sound not wanting maybe can be harmful to and the people that is busy with two-way communication adopt individual acoustic equipment (that is, being configured to be placed on the equipment nearby of at least one ear in user's the ear) to carry out these functions to have become general.Listen to the people of the audio frequency that provides with electrical way for the individual acoustic equipment that adopts headphone or head-telephone form; Provide this audio frequency to become general through at least two audio tracks (stereo audio that for example, has L channel and R channel) to output to each ear with acoustically individually through independent receiver.Further, the recent development in Digital Signal Processing (DSP) technology has made it possible to provide like this and has had the various forms that the relates to a plurality of audio tracks audio frequency around sound.For the people who seeks simply to isolate with acoustically, except having become general based on obtaining the acoustics isolation through the technological use of active noise reduction (ANR) passive noise reduction (PNR) technology of acoustic absorption and/or reflecting material based on the output of antinoise sound acoustics with the sound of not wanting maybe can be harmful to.Further, become general to other audio-frequency function combination in ANR and headphone, head-telephone, earphone, earplug and the wireless head-telephone (being also referred to as " ear's receiver ").

But although there are these many progress, the problem of the easy-to-use and user security of many individual acoustic equipments is still unresolved.More specifically; The user removes individual acoustic equipment assembling of its back operation or the control (for example, electric energy switch) that if not connects to individual acoustic equipment does not usually desirably use trouble nearby or from it what be placed on individual acoustic equipment one or two ear usually.The trouble essence of the control of individual's acoustic equipment is usually from minimize the weight that makes this individual acoustic equipment and the needs of minimized in size through the physical size that makes this control.In addition, usually put the control of the individual acoustic equipment miscellaneous equipment mutual inconveniently with it with respect to individual acoustic equipment and/or user.Further; No matter individual acoustic equipment self, or individual acoustic equipment another equipment mutual with it whether carry this control with some modes, the user they acoustic equipment be placed on an ear or two ears nearby or forget that when it removes it it all is general operating this control.

Can through provide in order to confirm individual acoustic equipment with respect to the placement of an ear or two ears in user's the ear from kinetic force, realize easy-to-use and/or safe various enhancements.

Summary of the invention

A kind of apparatus and method are used for the mode of operation of receiver of being confirmed the whole and/or individual acoustic equipment of individual acoustic equipment by the signal of the outer microphone output of the interior microphone of the inside cavity administration of the housing of receiver and individual acoustic equipment deploy through analyzing with the mode of the environment of the outside that is coupled to it with acoustically receiver at least.A kind of apparatus and method; The mode of operation that is used for the receiver through testing the whole and/or individual acoustic equipment of confirming individual acoustic equipment is to confirm current operation status; Wherein test according to the current power mode of individual acoustic equipment and difference, and wherein during at least one low power mode, adopt at least one low power test.A kind of apparatus and method; Be used for through reception moving of showing that one or more movable sensor detects, confirm the mode of operation of individual acoustic equipment from the signal of one or more movable sensor, wherein one or more movable sensor be deployed in be configured on the part of the individual acoustic equipment of wearing on the user's head so that one or more movable sensor can be on the user's head so that the rotation of the housing of individual acoustic equipment and user's ear detection user head when adjacent is moved at individual acoustic equipment.A kind of apparatus and method; Be used for showing that through reception each self-monitoring mobile signal from first movable sensor and second movable sensor confirms the mode of operation of individual acoustic equipment; Wherein first movable sensor be deployed in be configured on the part of the individual acoustic equipment of wearing on the user's head so that first movable sensor can be on the user's head so that the housing of individual acoustic equipment and user's ear detects the rotation of user's head when adjacent to be moved at individual acoustic equipment, and wherein be deployed in second movable sensor and be configured to not on the part of the individual acoustic equipment of wearing on the user's head.

In one aspect; Method comprises: the external signal of the interior signal of the interior microphone output of the inside cavity administration of the housing of the receiver of analyzing personal acoustic equipment and the outer microphone output of individual acoustic equipment deploy, with the extraneous environment of housing that is coupled to receiver through acoustically; And the mode of operation of confirming receiver based on the analysis of interior signal and external signal.

Embodiment can include but not limited to one or more characteristic in the following characteristic.The mode of operation of confirming receiver can comprise: confirm receiver be in the ear that is placed on the user nearby so that cavity is coupled to acoustically in the mode of operation of duct, still be in the ear that is not placed on the user nearby so that cavity is coupled in the mode of operation of the extraneous environment of housing with acoustically.Signal can comprise with external signal in analyzing: compare the signal rank of the interior signal in the selected scope of frequency with the signal rank of external signal in frequency is selected scope; And the mode of operation of definite receiver can comprise: be provided with in the maximum difference of appointment through the difference threshold value in response to the difference between the signal rank that detects external signal and interior signal in the selected scope of frequency at least in part, confirming that receiver is in the mode of operation nearby that is placed on ear.Method may further include: external signal is applied the transfer function of revising the sound that external signal representes with the substantially similar mode of mode of revising the sound of propagating to cavity from the extraneous environment of housing when being in the mode of operation nearby that is placed on ear at receiver, and the ANR that this transfer function can provide based on individual acoustic equipment at least in part revises the mode of the sound of propagating to cavity from the extraneous environment of housing.

Signal and external signal can comprise in analyzing: through drawing the 3rd transfer function that shows difference between first transfer function and second transfer function at least; Analyze the difference between first transfer function and second transfer function; The sound that this first transfer function is represented to send in the acoustic noise source from the environment in the housing external world is along with it is propagated and the mode of change from the interior microphone of noise source in cavity, and this second transfer function representes that sound is along with it is propagated and the mode of change from the outside microphone of noise source.The mode of operation of confirming receiver can comprise: confirm that the difference between in the 3rd transfer function and the first storage transfer function and the second storage transfer function is being provided with through the difference threshold value in the maximum difference of appointment; This first storage transfer function is corresponding to the mode of operation nearby that is placed on ear; This second storage transfer function is corresponding to the mode of operation nearby of the ear that is not placed on the user; Perhaps can comprise: at least one characteristic of confirming the 3rd transfer function is compared one individual features in the first storage transfer function and the second storage transfer function and is more pressed close to another the individual features in the first storage transfer function and second storage function; This first storage transfer function is corresponding to the mode of operation nearby that is placed on ear, and this second storage transfer function is corresponding to the mode of operation nearby of the ear that is not placed on the user.Method may further include: the acoustic driver through being deployed at least in part in the cavity is exported the audio frequency that provides with electrical way with acoustically in cavity; The signal rank of monitoring external signal; Draw the 4th transfer function, the 4th transfer function represent acoustic driver with the audio frequency that provides with electrical way of acoustically output along with it is propagated and the mode that changes from the inside microphone of acoustic driver; And the mode of operation of confirming receiver at least in part based on the characteristic of analyzing the 4th transfer function.Further; According to the signal rank of external signal whether meet the minimal level setting at least and the audio frequency that whether provides with electrical way with acoustically output in the current forward cavity at least one, confirm that the mode of operation of receiver can or be analyzed the characteristic of the 4th transfer function based on the difference between signal in analyzing and the external signal.

Method may further include: confirmed to occur the change of the mode of operation of receiver; And the integral body of confirming individual acoustic equipment at least be placed on around the user's head or mode of operation on the user's head and be not placed on around the user's head or mode of operation on the user's head among changed mode of operation.Method may further include: confirmed to occur the change of the mode of operation of receiver; And take action in response to the change of the mode of operation of confirming to have occurred receiver.Further, the action of taking can be in the following content: change provides to the electric energy of the part of individual acoustic equipment; Change individual acoustic equipment providing to ANR; The indication of the current operation status through individual at least acoustic equipment receiver is signaled to another equipment that individual acoustic equipment communicates with; The communication mic mute of individual acoustic equipment; And change its course acoustic driver that will be through receiver with the audio frequency of acoustically output and to export with acoustically for another acoustic driver of another receiver through individual acoustic equipment.

In one aspect, individual acoustic equipment comprises: first receiver has first housing; Microphone in first, be deployed in first cavity of first housing and be used to export microphone detects in the expression first sound first in signal; The first outer microphone is deployed in first external signal to be coupled to the extraneous environment of first housing through acoustically and to be used to export the sound of the expression first outer microphone detection on the individual acoustic equipment; And control circuit; Be coupled to the first interior microphone and be coupled to the first outer microphone to receive the signal and first external signal in first; Analyzing the difference between the signal and first external signal in first, and confirm the mode of operation of first receiver based on analyzing difference between the first interior signal and first external signal at least in part.

Embodiment can include but not limited to one or more characteristic in the following characteristic.Control circuit can through confirm at least receiver be in the ear that is placed on the user nearby so that first cavity is coupled to acoustically in the mode of operation of duct, still be in the ear that is not placed on the user nearby so that first cavity is coupled to the mode of operation of confirming receiver in the mode of operation of the extraneous environment of first housing with acoustically.First receiver can be the form of ear-hang on in-ear phone, the ear, ear top ear-hang or ear's receiver.Individual's acoustic equipment can be the helmet of listening to headphone, noise reduction headset, two-way communication head-telephone, earphone, earplug, two-way communication ear receiver, ear's protector, the cap that combines receiver and combination receiver.Individual's acoustic equipment can the joint portion be deployed on the individual acoustic equipment communication microphone with the sound of voice that detects the user, and perhaps, the first outer microphone can be the microphone of communicating by letter.

Individual's acoustic equipment can further combine: second receiver has second housing; And microphone in second, be deployed in second cavity of second housing and be used to export microphone detects in the expression second sound second in signal.In addition, individual acoustic equipment can further combine: the second outer microphone is deployed in second external signal to be coupled to the extraneous environment of second housing through acoustically and to be used to export the sound of the expression second outer microphone detection on the individual acoustic equipment.Further; Control circuit can further be coupled to the second interior microphone and be coupled to the second outer microphone to receive the signal and second external signal in second; Analyzing the difference between the signal and second external signal in second, and confirm the mode of operation of second receiver based on analyzing difference between the second interior signal and second external signal at least in part.Can be as an alternative; Control circuit further is coupled to the second interior microphone to receive signal in second; Analyze the difference between the signal and first external signal in second, and at least in part based on the analysis of difference between signal in second and first external signal another ear that is placed on the user nearby so that second cavity be coupled to the state of duct with acoustically and be not placed on the user another ear nearby so that second cavity is coupled to the state of definite second receiver between the state of environment in second housing external world with acoustically.

Individual's acoustic equipment can further combine: power supply; Be used for electric energy being provided and being coupled to control circuit to the assembly of individual acoustic equipment, wherein the control circuit change of having confirmed to occur the mode of operation of at least the first receiver in response to control circuit is signaled to power supply and is provided to the electric energy of assembly to change it.Individual's acoustic equipment can further combine: the ANR circuit; Be used to make individual acoustic equipment that ANR can be provided and be coupled to control circuit that wherein the control circuit change of having confirmed to occur the mode of operation of at least the first receiver in response to control circuit is signaled to change its providing ANR to the ANR circuit.Individual's acoustic equipment can further combine: interface; Be used to make individual acoustic equipment and to be coupled to control circuit with another devices communicating, wherein the control circuit change operation-interface of having confirmed to occur the mode of operation of at least the first receiver in response to control circuit signals to another equipment with the indication of the change of the mode of operation through the first receiver having occurred at least.Individual's acoustic equipment can further combine: Audio Controller; Be coupled to control circuit; Wherein control circuit is in response to the action of change operating audio controller to take from the set that comprises following content, to select of the mode of operation of confirming to have occurred at least the first receiver: the audio mute that detects the communication microphone of individual acoustic equipment, and change its course first acoustic driver that will be through first receiver with the audio frequency of acoustically output and to export with acoustically for second acoustic driver of second receiver through individual acoustic equipment.

In one aspect, device comprises: first microphone is deployed in first signal of the acoustic signal that is detected with detection of acoustic signal and output expression first microphone in the cavity of housing of receiver of individual acoustic equipment; Second microphone is deployed on the individual acoustic equipment secondary signal of the acoustic signal that is detected with detection of acoustic signal and output expression second microphone with the extraneous environment of the housing that is coupled to receiver through acoustically; Sef-adapting filter, in order to filter in first signal and the secondary signal, wherein sef-adapting filter is regulated filter coefficient according to the adaptive algorithm of selecting in order to the signal power that reduces error signal; The difference summer, in order to deduct in from first signal and secondary signal another in first signal and the secondary signal said one to draw error signal; Memory, the wherein predetermined sef-adapting filter parameter of the known state of operation of storage representation individual acoustic equipment; And controller, the predetermined sef-adapting filter compared with parameters that sef-adapting filter parameter that is used for drawing sef-adapting filter through adaptive algorithm and memory are stored is.

Embodiment can include but not limited to one or more characteristic in the following characteristic.The sef-adapting filter parameter that sef-adapting filter draws can be the filter coefficient that sef-adapting filter is regulated, and perhaps can represent the frequency response of the sef-adapting filter corresponding with the filter coefficient of regulating through sef-adapting filter.

In another aspect, the method that is used for controlling individual acoustic equipment comprises: under the situation of normal power mode, carry out at least the first receiver of individual acoustic equipment whether and be in first test in the ear position adjacent with the user; Carry out at least the first receiver whether under the situation in lower power mode and be in second test in the ear position adjacent with the user; At least wait for the time interval between the instance of carrying out second test under the situation in lower power mode; In response to from second the test, at least the first receiver is in user's ear position adjacent in indication, get into normal power mode; And in response on very first time section, do not exist from a plurality of instances of carrying out first test, at least the first receiver is in user's ear position adjacent in indication, get into lower power mode.

Embodiment can include but not limited to one or more characteristic in the following characteristic.First receiver can comprise: housing is used for limiting the cavity of duct that is configured to when first receiver is in the ear position adjacent with the user to be coupled to acoustically user's ear; Outer microphone is deployed on the housing to be coupled to the extraneous environment of housing through acoustically; And interior microphone, be placed in the cavity.First test can comprise: operate outer microphone to detect the sound in the extraneous environment of housing; Microphone is with the sound in the test chamber in the operation; And in first scope of sound frequency, compare the acoustic phase that detects in sound that detects in the environment in the housing external world and the cavity; Confirming that whether cavity is coupled to the duct of user's ear with acoustically, whether as at least the first receiver is in the indication in the ear position adjacent with the user.First receiver further can comprise: acoustic driver is placed to acoustically output sound in cavity; And second test can comprise: the operation acoustic driver is with through acoustically output test sound; Microphone is to detect test sound in the operation; And compare the test sound that acoustic driver is exported with acoustically with the test sound that interior microphone is detected; Confirming whether cavity is coupled to the extraneous environment of housing with acoustically, whether as at least the first receiver is in the indication in the ear position adjacent with the user.

Second test can comprise: operate outer microphone to detect the sound in the extraneous environment of housing; Microphone is with the sound in the test chamber in the operation; And in second scope of sound frequency, compare the acoustic phase that detects in sound that detects in the environment in the housing external world and the cavity; Confirming that whether cavity is coupled to the duct of user's ear with acoustically, whether as at least the first receiver is in the indication in the ear position adjacent with the user.First scope that second scope of sound frequency is compared sound frequency can be sound frequency than close limit.Individual's acoustic equipment can comprise that the sef-adapting filter with a plurality of taps is to compare the acoustic phase that detects in sound that detects in the environment in the housing external world and the cavity; First test can comprise the tap of using first quantity and operate sef-adapting filter by first sampling rate; And second test can comprise the tap of using second quantity and operate sef-adapting filter by second sampling rate.The tap of second quantity can be less than the tap of first quantity, and/or second sampling rate can be lower than first sampling rate.

First receiver can comprise: housing is used for limiting the cavity of duct that is configured to when first receiver is in the ear position adjacent with the user to be coupled to acoustically user's ear; Acoustic driver is placed to acoustically output sound in cavity; And interior microphone, be placed in the cavity.First test can comprise: the operation acoustic driver is to test sound through acoustically output first; Microphone is to detect the first test sound in the operation; And first test sound and the interior microphone of being exported acoustic driver with acoustically detected first test sound and compare; Confirming whether cavity is coupled to the extraneous environment of housing with acoustically, whether as at least the first receiver is in the indication in the ear position adjacent with the user.Method may further include: microphone comprises the first test sound with the noise sound in the test chamber in the operation; Adopt noise sound to feed back anti-noise sound to draw, wherein feed back anti-noise sound and comprise the first test sound as feedback reference sound; And the operation acoustic driver comprises the first test sound to output to feedback anti-noise sound in the cavity with acoustically.The frequency of the first test sound can be an infra-acoustic frequency.Second test can comprise: the operation acoustic driver is to test sound through acoustically output second; Microphone is to detect the second test sound in the operation; And compare the test sound that acoustic driver is exported with acoustically with the second test sound that interior microphone is detected; Confirming whether cavity is coupled to the extraneous environment of housing with acoustically, whether as at least the first receiver is in the indication in the ear position adjacent with the user.Other frequency that can be chosen to compare the frequency that comprises the first test sound to the frequency of the second test sound is through the less energy of acoustically output needs.

Individual's acoustic equipment can comprise motion sensor, and second test can comprise: the monitoring motion sensor to be determining whether to have moved the part of individual acoustic equipment, and whether as at least the first receiver is in the indication in the ear position adjacent with the user.Method may further include: carry out function under the situation in normal power mode, this function is selected from the group that comprises following content: ANR based on feedforward is provided, provide based on the ANR of feedback, the audio frequency that in cavity, provides with electrical way, another equipment of signaling individual acoustic equipment with acoustically output be in make at least the first receiver and user's the ear position adjacent and the audio transmission of the microphone detection of communicating by letter of individual acoustic equipment to another equipment.Method may further include: stop to carry out function under the situation in lower power mode.Method may further include: carry out first test under the situation in more shallow low power mode; In response to from first the test, at least the first receiver is in user's ear position adjacent in indication, get into normal power mode; And in response to do not exist the instance that to carry out under the situation of comfortable normal electrical in can pattern first test, at least the first receiver is in user's ear position adjacent in indication, get into more shallow low power mode.Method may further include: the mode of function is carried out in change during normal power mode after getting into more shallow low power mode, and this function is selected from the group that comprises following content: ANR based on feedforward is provided, provide based on the ANR of feedback, the audio frequency that in cavity, provides with electrical way, another equipment of signaling individual acoustic equipment with acoustically output be in make at least the first receiver and user's the ear position adjacent and the audio transmission of the microphone detection of communicating by letter of individual acoustic equipment to another equipment.

In another aspect, individual acoustic equipment comprises: first receiver comprises: housing is used to limit the cavity of duct of ear that is configured to be coupled to acoustically the user of individual acoustic equipment; Interior microphone is placed in the cavity; And control circuit, be coupled to interior microphone.Be configured to control circuit: carry out at least the first receiver whether under the situation in normal power mode and be in first test in the ear position adjacent with the user; Carry out at least the first receiver whether under the situation in lower power mode and be in second test in the ear position adjacent with the user; At least wait for the time interval between the instance of carrying out second test under the situation in lower power mode; In response to from second the test, at least the first receiver is in user's ear position adjacent in indication, individual acoustic equipment is in the normal power mode; And in response on very first time section, do not exist from a plurality of instances of carrying out first test, at least the first receiver is in user's ear position adjacent in indication, individual acoustic equipment is in the lower power mode.

Embodiment can include but not limited to one or more characteristic in the following characteristic.First receiver may further include: outer microphone, be coupled to control circuit and be deployed on the housing to be coupled to the extraneous environment of housing through acoustically; And, can be configured to control circuit: operate outer microphone to detect the sound in the extraneous environment of housing in order to carry out first test; Microphone is with the sound in the test chamber in the operation; And in first scope of sound frequency, compare the acoustic phase that detects in sound that detects in the environment in the housing external world and the cavity; Confirming that whether cavity is coupled to the duct of user's ear with acoustically, whether as at least the first receiver is in the indication in the ear position adjacent with the user.First receiver may further include: acoustic driver, be coupled to control circuit and be placed to acoustically output sound in cavity; And in order to carry out second test, can be configured to control circuit: the operation acoustic driver is to test sound through acoustically output; Microphone is to detect test sound in the operation; And compare the test sound that acoustic driver is exported with acoustically with the test sound that interior microphone is detected; Confirming whether cavity is coupled to the extraneous environment of housing with acoustically, whether as at least the first receiver is in the indication in the ear position adjacent with the user.

Can in order to carry out second test, can be configured to control circuit as an alternative: operate outer microphone to detect the sound in the extraneous environment of housing; Microphone is with the sound in the test chamber in the operation; And in second scope of sound frequency, compare the acoustic phase that detects in sound that detects in the environment in the housing external world and the cavity; Confirming that whether cavity is coupled to the duct of user's ear with acoustically, whether as at least the first receiver is in the indication in the ear position adjacent with the user.First scope that second scope of sound frequency is compared sound frequency can be sound frequency than close limit.Control circuit can comprise: sef-adapting filter, be coupled to interior microphone and outer microphone, and have a plurality of taps so that the sound of interior microphone detection and the acoustic phase of outer microphone detection are compared; In order to carry out first test, can be configured to sef-adapting filter to use the tap of first quantity and operate by first sampling rate; And, can be configured to sef-adapting filter to use the tap of second quantity and operate by second sampling rate in order to carry out second test.The tap of second quantity can be less than the tap of first quantity, and/or second sampling rate can be lower than first sampling rate.

First receiver may further include: acoustic driver, be coupled to control circuit and be placed to acoustically output sound in cavity; And in order to carry out first test, be configured to control circuit: the operation acoustic driver is to test sound through acoustically output first; Microphone is to detect the first test sound in the operation; And first test sound and the interior microphone of being exported acoustic driver with acoustically detected first test sound and compare; Confirming whether cavity is coupled to the extraneous environment of housing with acoustically, whether as at least the first receiver is in the indication in the ear position adjacent with the user.Can further be configured to control circuit: microphone comprises the first test sound with the noise sound in the test chamber in the operation; Adopt noise sound to feed back anti-noise sound to draw, wherein feed back anti-noise sound and comprise the first test sound as feedback reference sound; And the operation acoustic driver comprises the first test sound to output to feedback anti-noise sound in the cavity with acoustically.The frequency of the first test sound can be an infra-acoustic frequency; In order to carry out second test, can be configured to control circuit: the operation acoustic driver is to test sound through acoustically output second; Microphone is to detect the second test sound in the operation; And compare the test sound that acoustic driver is exported with acoustically with the second test sound that interior microphone is detected; Confirming whether cavity is coupled to the extraneous environment of housing with acoustically, whether as at least the first receiver is in the indication in the ear position adjacent with the user.Can be chosen to the frequency of the second test sound to compare and comprise that the first test sound is that other frequency of frequency is through the less energy of acoustically output needs.

Individual's acoustic equipment may further include: motion sensor, be coupled to control circuit and be deployed on the part of individual acoustic equipment; And in order to carry out second test, can be configured to control circuit: the monitoring motion sensor to be determining whether to have moved the part of individual acoustic equipment, and whether as at least the first receiver is in the indication in the ear position adjacent with the user.Can be configured to individual acoustic equipment to carry out function under the situation in normal power mode, this function be selected from the group that comprises following content: ANR based on feedforward is provided, provide based on the ANR of feedback, the audio frequency that in cavity, provides with electrical way, another equipment of signaling individual acoustic equipment with acoustically output be in make at least the first receiver and user's the ear position adjacent and the audio transmission of the microphone detection of communicating by letter of individual acoustic equipment to another equipment.Control circuit can be so that stop to carry out function under the situation of individual acoustic equipment in lower power mode.Can be configured to control circuit: carry out first test under the situation in more shallow low power mode; In response to from first the test, at least the first receiver is in user's ear position adjacent in indication, individual acoustic equipment is in the normal power mode; And in response to do not exist the instance that to carry out under the situation of comfortable normal electrical in can pattern first test, at least the first receiver is in user's ear position adjacent in indication, individual acoustic equipment is in the more shallow low power mode.Can further be configured to control circuit: make individual acoustic equipment be in the more shallow low power mode change individual acoustic equipment in back is carried out function during normal power mode mode, this function is selected from the group that comprises following content: ANR based on feedforward is provided, provide based on the ANR of feedback, the audio frequency that in cavity, provides with electrical way, another equipment of signaling individual acoustic equipment with acoustically output be in make at least the first receiver and user's the ear position adjacent and the audio transmission of the microphone detection of communicating by letter of individual acoustic equipment to another equipment.

In another aspect; The method that is used to control individual acoustic equipment comprises: receive signal from least one movable sensor; Wherein at least one movable sensor be deployed in be configured on the part of the individual acoustic equipment of wearing on the user's head so that at least one movable sensor can be on the user's head so that the housing of individual acoustic equipment and user's ear detects the rotation of user's head when adjacent to be moved at individual acoustic equipment, and moving of detecting of signal indicating wherein; Whether the characteristic that moves of analyzing and testing is the rotation of user's head of causing of user with moving of confirming to detect is moved; And the rotation of the user's head that causes in response to the mobile user of being who confirm to detect moves, and confirms that individual acoustic equipment is on the user's head.

Embodiment can include but not limited to one or more characteristic in the following characteristic.Method may further include: mobile being determined in response to there is not a detection for predetermined amount of time is that the rotation of user's head of causing of user is moved, and confirms that individual acoustic equipment is not on the user's head.

At least one movable sensor can be a gyroscope; And reception shows that the signal from least one movable sensor that moves of detection can comprise the indication that the rotation of reception gyroscope detection is moved.The characteristic that moves of analyzing and testing can comprise: during the predetermined sampling period the rotation degree that moves that detects compare with predetermined minimum rotation degree with confirm to detect mobile whether be that the rotation of user's head of causing of user is moved.Whether the characteristic that moves of analyzing and testing can comprise: compare the characteristic that moves that detects with the predetermined maximum of this characteristic, move artificially feasible so that the rotation of user's head that the mobile user of being of detection causes is moved with what confirm to detect; And this characteristic can be selected from the group that comprises following content: the speed of moving of the degree of moving of detection, detection, detection around gyrostatic axle rotation around gyrostatic axle rotation move the moving of acceleration around gyrostatic axle rotation, detection around the change speed of acceleration of gyrostatic axle rotation and moving of detecting around the repetition rate of gyrostatic axle rotation.Method may further include: in response to the predetermined maximum of the characteristic that moves that detects above this characteristic, confirm that immediately individual acoustic equipment is not on the user's head.

At least one movable sensor of a part of deploy of the individual acoustic equipment that is configured on user's head, wear can comprise: first accelerometer is deployed in and is configured in the first of the individual acoustic equipment of wearing on the user's head; And second accelerometer, be deployed in and also be configured on the second portion of the individual acoustic equipment of wearing on the user's head; Reception shows that the signal from least one movable sensor that moves of detection can comprise: receive first signal from first accelerometer of first acceleration that shows that first accelerometer detects, and the secondary signal from second accelerometer that receives second acceleration that shows that second accelerometer detects; Method may further include: distinguish differential mode acceleration and common mode acceleration between first acceleration and second acceleration; And the characteristic that moves of analyzing and testing whether be the rotation of user's head of causing of user with moving of confirming to detect move and can comprise: analyze the differential mode acceleration to confirm whether the differential mode acceleration shows that the rotation of user's head that the user causes moves.

Whether further, the characteristic that moves of analyzing and testing can comprise: compare the characteristic of differential mode acceleration with the predetermined maximum of this characteristic and move artificial feasible so that the rotation of user's head that the mobile user of being of detection causes is moved with what confirm to detect; And this characteristic can be selected from the group that comprises following content: the change speed of the size of differential mode acceleration, differential mode acceleration and the repetition rate of differential mode acceleration.Method may further include: surpass the predetermined maximum of this characteristic in response to the characteristic of differential mode acceleration, confirm that immediately individual acoustic equipment is not on the user's head.

Further; Method may further include: compare the characteristic of common mode acceleration with the predetermined maximum of this characteristic, wherein this characteristic is selected from the group that comprises following content: the change speed of the size of common mode acceleration, common mode acceleration and the repetition rate of common mode acceleration; And surpass the predetermined maximum of this characteristic in response to the characteristic of common mode acceleration, confirm that immediately individual acoustic equipment is not on the user's head.Method can further comprise again: the predetermined maximum that does not surpass this characteristic in response to the characteristic of common mode acceleration; Confirm that immediately individual acoustic equipment is on the user's head; Wherein characteristic is the repetition rate of common mode acceleration, and wherein the repetition rate of common mode acceleration is the frequency that shows that the human muscle of repetition moves.

Further, method may further include: draw between first accelerometer and second accelerometer towards difference; And in response to towards difference show can not be the adjacent so that cavity of housing of housing and user's first ear with acoustically be coupled to the duct of first ear, can not to be the adjacent so that cavity of another housing of another housing and user's second ear also be coupled to the duct of second ear with acoustically, confirms that immediately individual acoustic equipment is not on the user's head.

In another aspect, individual acoustic equipment comprises: housing is configured to place adjacently with user's ear; At least one movable sensor is deployed in and is configured to moving so that at least one movable sensor can be on the user's head so that housing and user's ear detects the rotation of user's head when adjacent at individual acoustic equipment at least a portion of the individual acoustic equipment of wearing on the user's head; Control circuit is coupled at least one movable sensor.Further, be configured to control circuit: receive the signal that moves that shows detection from least one movable sensor; Whether the characteristic that moves of analyzing and testing is the rotation of user's head of causing of user with moving of confirming to detect is moved; And the rotation of the user's head that causes in response to the mobile user of being who confirm to detect moves, and confirms that individual acoustic equipment is on the user's head.

Embodiment can include but not limited to one or more characteristic in the following characteristic.Can further be configured to control circuit: mobile being determined in response to there is not a detection for predetermined amount of time is that the rotation of user's head of causing of user is moved, and confirms that individual acoustic equipment is not on the user's head.

At least one movable sensor can be a gyroscope; And the mobile rotation that can be gyroscope detects that detects is moved.The characteristic that moves that is configured to control circuit analyzing and testing can comprise: be configured to control circuit during the predetermined sampling period, to compare a rotation degree that moves that detects with predetermined minimum rotation degree, with confirm to detect mobile whether be that the rotation of user's head of causing of user is moved.Whether the characteristic that moves that is configured to control circuit analyzing and testing can comprise: be configured to control circuit to compare the characteristic that moves that detects with the predetermined maximum of this characteristic and move artificial feasible so that the rotation of user's head that the mobile user of being of detection causes is moved with what confirm to detect; And this characteristic can be selected from the group that comprises following content: the speed of moving of the degree of moving of detection, detection, detection around gyrostatic axle rotation around gyrostatic axle rotation move the moving of acceleration around gyrostatic axle rotation, detection around the change speed of acceleration of gyrostatic axle rotation and moving of detecting around the repetition rate of gyrostatic axle rotation.Can further be configured to control circuit:, confirm that immediately individual acoustic equipment is not on the user's head in response to the predetermined maximum of the characteristic that moves that detects above this characteristic.

At least one movable sensor of at least a portion deploy of individual's acoustic equipment can be: first accelerometer is deployed in the first; And second accelerometer, be deployed on the second portion; Can all be configured to first and second portion wearing on the user's head so that first accelerometer and second accelerometer can be on the user's head so that housing and user's ear detects the acceleration of user's head when adjacent at individual acoustic equipment; Control circuit is coupled at least one movable sensor can comprise that control circuit is coupled to first accelerometer and second accelerometer; Being configured to receive the signal from least one movable sensor that moves that shows detection to control circuit can comprise: be configured to receive the secondary signal from second accelerometer that first signal and the reception from first accelerometer that show first acceleration shows second acceleration to control circuit; Can further be configured to control circuit: distinguish differential mode acceleration and common mode acceleration between first acceleration and second acceleration; And the characteristic that moves that is configured to control circuit analyzing and testing whether be the rotation of user's head of causing of user with moving of confirming to detect move and can comprise: the characteristic that is configured to control circuit to analyze the differential mode acceleration is to confirm whether the differential mode acceleration shows that the rotation of user's head that the user causes moves.

Further, the characteristic that is configured to analyze the differential mode acceleration to control circuit can comprise: be configured to control circuit to compare the characteristic of differential mode acceleration with the predetermined maximum of this characteristic to confirm whether the differential mode acceleration shows that artificial feasible rotation is moved so that the differential mode acceleration shows the rotation of user's head that the user causes and move; And this characteristic can be selected from the group that comprises following content: the change speed of the size of differential mode acceleration, differential mode acceleration and the repetition rate of differential mode acceleration.Can further be configured to control circuit: surpass the predetermined maximum of this characteristic in response to the characteristic of differential mode acceleration, confirm that immediately individual acoustic equipment is not on the user's head.

Whether the characteristic that moves that is configured to control circuit analyzing and testing is the rotation of user's head of causing of user with moving of confirming to detect is moved further and can comprise: be configured to control circuit to compare the characteristic of common mode acceleration with the predetermined maximum of this characteristic; This characteristic can be selected from the group that comprises following content: the change speed of the size of common mode acceleration, common mode acceleration and the repetition rate of common mode acceleration; And can further be configured to control circuit: surpass the predetermined maximum of this characteristic in response to the characteristic of common mode acceleration, confirm that immediately individual acoustic equipment is not on the user's head.Can further be configured to control circuit: the predetermined maximum that does not surpass this characteristic in response to the characteristic of common mode acceleration; Confirm that immediately individual acoustic equipment is on the user's head; Wherein characteristic is the repetition rate of common mode acceleration, and wherein the repetition rate of common mode acceleration is the frequency that shows that human muscle moves.

Can dispose first accelerometer and second accelerometer so that when individual acoustic equipment is on the user's head, place them asymmetricly around individual acoustic equipment with respect to user's head.

In another aspect; The method that is used to control individual acoustic equipment comprises: receive first signal from first movable sensor; Wherein first movable sensor be deployed in be configured in the first of the individual acoustic equipment of wearing on the user's head so that first movable sensor can be on the user's head so that the housing of individual acoustic equipment and user's ear detects moving of user's head when adjacent at individual acoustic equipment, and the moving of detection of the first signal indicating first wherein; Receive secondary signal from second movable sensor; Wherein be deployed in second movable sensor and be configured to not on the second portion of the individual acoustic equipment of wearing on the user's head so that the reference that is directed against of moving that comparison first movable sensor detects to be provided, and wherein secondary signal shows the moving of detection of second portion; Distinguish first detection move with the detection of second portion mobile between differential mode move with common mode and move; The characteristic that the analysis differential mode moves moves user's head the moving with respect to reference that whether shows that the user causes to confirm differential mode; And show that in response to confirming that differential mode moves user's head that the user causes with respect to the moving of reference, confirms that individual acoustic equipment is on the user's head.

Embodiment can include but not limited to one or more characteristic in the following characteristic.Method may further include: do not show that in response to not existing differential mode to move for predetermined amount of time to be determined user's head that the user causes with respect to the moving of reference, confirms that individual acoustic equipment is not on the user's head.Method may further include: on reciprocal time interval, analyze first detection move and the detection of second portion move with draw between first movable sensor and second movable sensor towards difference; And adopt between first movable sensor draw and second movable sensor towards difference create following this conversion: through in its change first and the second portion one detection the indication of moving with the mobile indication of the detection of aiming at first and second portion towards preparing against other analysis.In addition, method may further include: for by in one in first movable sensor and second movable sensor towards the instance monitoring conversion of change of the conversion that causes of change mobile to detect.

First movable sensor can be first gyroscope; Second movable sensor can be second gyroscope; Reception shows that first signal from first movable sensor that moves of the detection of first can comprise reception from first gyrostatic first signal, and wherein first signal indicating first detects to rotate and moves; And the secondary signal from second movable sensor that moves that receives the detection show second portion can comprise reception from the second gyrostatic secondary signal, and wherein secondary signal shows that second detects rotation and move.Analyzing the characteristic that differential mode moves can comprise: whether the rotation degree that during the predetermined sampling period, moves differential mode is compared with predetermined minimum rotation degree shows mobile with respect to reference of user's head that the user causes to confirm that differential mode moves.

Further, analyzing the characteristic that differential mode moves can comprise: the characteristic that moves differential mode is compared with the predetermined maximum of this characteristic to confirm that whether artificial feasible differential mode move so that differential mode and move and show mobile with respect to reference of user's head that the user causes; And this characteristic can be selected from the group that comprises following content: the change speed of the rotation degree that differential mode moves, the rotary speed that differential mode moves, rotary acceleration that differential mode moves, rotary acceleration that differential mode moves and the repetition rate that differential mode moves.Method may further include: the characteristic that moves in response to differential mode surpasses the predetermined maximum of this characteristic, confirms that immediately individual acoustic equipment is not on the user's head.

First movable sensor can be first accelerometer; Second movable sensor can be second accelerometer; Reception shows that first signal from first movable sensor that moves of the detection of first can comprise first signal of reception from first accelerometer, wherein first signal indicating, first sense acceleration; Reception shows that the secondary signal from second movable sensor that moves of the detection of second portion can comprise the secondary signal of reception from second accelerometer, and wherein secondary signal shows second sense acceleration; And distinguish that differential mode between the moving of detection of first and second portion moves and common mode moves the differential mode acceleration and the common mode acceleration that can comprise between differentiation first sense acceleration and second sense acceleration.

Further, analyzing the characteristic that differential mode moves can comprise: compare the characteristic of differential mode acceleration with the predetermined maximum of this characteristic to confirm whether the differential mode acceleration shows that artificial feasible user's head moves so that the differential mode acceleration shows mobile with respect to reference of user's head that the user causes; And this characteristic can be selected from the group that comprises following content: the change speed of the size of differential mode acceleration, differential mode acceleration and the repetition rate of differential mode acceleration.Method may further include: surpass the predetermined maximum of this characteristic in response to the characteristic of differential mode acceleration, confirm that immediately individual acoustic equipment is not on the user's head.

Further; Method may further include: analyze the characteristic that common mode moves through comparing the characteristic of common mode acceleration with the predetermined maximum of this characteristic, this characteristic is selected from the group that comprises following content: the change speed of the size of common mode acceleration, common mode acceleration and the repetition rate of common mode acceleration; And surpass the predetermined maximum of this characteristic in response to the characteristic of common mode acceleration, confirm that immediately individual acoustic equipment is not on the user's head.Method may further include: the predetermined maximum that does not surpass this characteristic in response to the characteristic of common mode acceleration; Confirm that immediately individual acoustic equipment is on the user's head; Wherein characteristic is the repetition rate of common mode acceleration, and wherein the repetition rate of common mode acceleration is the frequency that shows that the human muscle of repetition moves.

In another aspect, individual acoustic equipment comprises: first housing is configured to place adjacently with user's ear; Second housing is configured to place away from two ears of user; First movable sensor, be deployed in comprise first housing and be configured on the part of the individual acoustic equipment of wearing on the user's head so that first movable sensor can be on the user's head so that first housing and user's ear detects moving of user's head when adjacent at individual acoustic equipment; Second movable sensor is deployed in the mobile reference that is directed against to provide comparison first movable sensor to detect on second housing; And control circuit, be coupled to first movable sensor and second movable sensor.Be configured to control circuit further: first signal that moves that receives the detection that shows a said part from first movable sensor; Reception shows the secondary signal from second movable sensor that moves of the detection of second housing; Distinguish a said part detection move with the detection of second housing mobile between differential mode move with common mode and move; The characteristic that the analysis differential mode moves moves user's head the moving with respect to reference that whether shows that the user causes to confirm differential mode; And show that in response to confirming that differential mode moves user's head that the user causes with respect to the moving of reference, confirms that individual acoustic equipment is on the user's head.

Embodiment can include but not limited to one or more characteristic in the following characteristic.Can further be configured to control circuit: do not show that in response to not existing differential mode to move for predetermined amount of time to be determined user's head that the user causes with respect to the moving of reference, confirms that individual acoustic equipment is not on the user's head.Individual's acoustic equipment may further include: cable has and is coupled to first and disposes first end of second housing along it; And connector, second end that is coupled to cable with intercommunication (intercom) system that is coupled to individual acoustic equipment on the vehicles so that when connector is coupled to intercom system with reference to comprising the position of second housing along length of cable.Individual's acoustic equipment may further include: connector; Be deployed on second housing to be coupled to individual acoustic equipment the intercom system of the vehicles, wherein further be configured to control circuit: whether receiving connector is coupled to the indication of the intercom system of the vehicles; And confirm that in response to the indication change control circuit whether connector is coupled to intercom system individual acoustic equipment is in the mode on the user's head.

Can further be configured to control circuit: on reciprocal time interval, analyze a said part detection move and the detection of second housing move with draw between first movable sensor and second movable sensor towards difference; And adopt between first movable sensor draw and second movable sensor towards difference create following this conversion: change through it in the said part and second housing one detection the indication of moving with the indication of moving of the detection of aiming at a said part and second housing towards preparing against other analysis.In addition, can further be configured to control circuit: for by in one in first movable sensor and second movable sensor towards the instance monitoring conversion of change of the conversion that causes of change mobile to detect.

Individual's acoustic equipment may further include: connector is deployed on second housing with the intercom system that is coupled to individual acoustic equipment on the vehicles so that reference comprises the vehicles when connector is coupled to intercom system.In addition; Individual's acoustic equipment may further include: cable; A said part and second housing are used to be coupled; And between a said part and second housing transmit audio signals, perhaps, a said part and second housing can be coupled through the wireless link of transmit audio signals between a said part and second housing.

First movable sensor can be first gyroscope; Second movable sensor can be second gyroscope; First signal can show that first of a said part detects rotation and moves; And secondary signal can show that second of second housing detects rotation and moves.Being configured to analyze the characteristic that differential mode moves to control circuit can comprise: whether the rotation degree that is configured to control circuit during the predetermined sampling period, to move differential mode is compared with predetermined minimum rotation degree shows mobile with respect to reference of user's head that the user causes to confirm that differential mode moves.Being configured to analyze the characteristic that differential mode moves to control circuit can comprise: whether the characteristic that is configured to control circuit to move differential mode compares artificial feasible so that differential mode moves user's head the moving with respect to reference that shows that the user causes to confirm that differential mode moves with the predetermined maximum of this characteristic; And characteristic can be selected from the group that comprises following content: the change speed of the rotation degree that differential mode moves, the rotary speed that differential mode moves, rotary acceleration that differential mode moves, rotary acceleration that differential mode moves and the repetition rate that differential mode moves.In addition, can further be configured to control circuit: the characteristic that moves in response to differential mode surpasses the predetermined maximum of this characteristic, confirms that immediately individual acoustic equipment is not on the user's head.

First movable sensor can be first accelerometer; Second movable sensor can be second accelerometer; First signal can show first sense acceleration of a said part; Secondary signal can show second sense acceleration of second housing; And be configured to control circuit to distinguish said part detection move with the detection of second housing mobile between differential mode move and common mode moves and can comprise: be configured to distinguish differential mode acceleration and common mode acceleration between first sense acceleration and second sense acceleration to control circuit.Being configured to analyze the characteristic that differential mode moves to control circuit can comprise: be configured to control circuit to compare the characteristic of differential mode acceleration with the predetermined maximum of this characteristic to confirm whether the differential mode acceleration shows that artificial feasible user's head moves so that the differential mode acceleration shows user's head moving with respect to reference that the user causes; And this characteristic can be selected from the group that comprises following content: the change speed of the size of differential mode acceleration, differential mode acceleration and the repetition rate of differential mode acceleration.In addition, can further be configured to control circuit: surpass the predetermined maximum of this characteristic in response to the characteristic of differential mode acceleration, confirm that immediately individual acoustic equipment is not on the user's head.

Further; Can further be configured to control circuit: analyze the characteristic that common mode moves through comparing the characteristic of common mode acceleration with the predetermined maximum of this characteristic, this characteristic is selected from the group that comprises following content: the change speed of the size of common mode acceleration, common mode acceleration and the repetition rate of common mode acceleration; And surpass the predetermined maximum of this characteristic in response to the characteristic of common mode acceleration, confirm that immediately individual acoustic equipment is not on the user's head.Can further be configured to control circuit: the predetermined maximum that does not surpass this characteristic in response to the characteristic of common mode acceleration; Confirm that immediately individual acoustic equipment is on the user's head; Wherein characteristic is the repetition rate of common mode acceleration, and wherein the repetition rate of common mode acceleration is the frequency that shows that the human muscle of repetition moves.

Other features and advantages of the present invention will be according to following claim and description and obviously.

Description of drawings

Fig. 1 a and Fig. 1 b are the block diagrams of part of the feasible embodiment of individual acoustic equipment.

Fig. 2 a to Fig. 2 d has described to have the feasible physical configuration of the individual acoustic equipment of one or two receivers.

Fig. 3 a to Fig. 3 f has described to make between microphone and interior microphone provide outside the signal part of feasible electrical architecture of the individual acoustic equipment of comparison.

Fig. 4 is the flow chart of state machine of the feasible embodiment of individual acoustic equipment.

Fig. 5 is the block diagram of a part of the feasible embodiment of individual acoustic equipment.

Fig. 6 a to Fig. 6 f has described to have the feasible physical configuration of the individual acoustic equipment of one or two receivers, comprises the modification of the physical configuration of Fig. 2 a to Fig. 2 d.

Fig. 7 a and Fig. 7 b have described the signal that accelerometer or gyroscope provide is made the part of feasible electrical architecture of the individual acoustic equipment of analysis.

Fig. 8 a to Fig. 8 c has described to have the feasible physical configuration of the individual acoustic equipment of the connector that is used to be coupled to the vehicle interior communication system and two receivers.

Fig. 9 a and Fig. 9 b have described the signal that accelerometer or gyroscope provide is made the part of feasible electrical architecture of the individual acoustic equipment of analysis.

Embodiment

Require the content and the disclosed content of protection to be intended to can be applicable to various individual acoustic equipments among this paper; That is, be configured to at least one ear in the ear that is placed at least a portion of equipment the user nearby and with acoustically to this at least one ear output sound or control the equipment that the mode of the ambient sound that arrives this at least one ear is used.Though it should be noted that the various specific embodiments that present individual acoustic equipment with details to a certain degree; As; Listen to headphone, noise reduction headset, two-way communication head-telephone, earphone, earplug, wireless head-telephone (being also referred to as " ear's receiver ") and ear's protector; But appearing of specific embodiments is intended to promote to understand through instance, and should not regard the scope of restriction scope of disclosure or claim covering as.

Be intended to require among this paper the content of protection and the individual acoustic equipment that disclosed content can be applicable to provide active noise reduction (ANR), passive noise reduction (PNR) or the combination of the two.Be intended among this paper to require content and the disclosed content of protection can be applicable to provide two-way communication, only provide the audio frequency that provides with electrical way acoustics output (comprising so-called " one-way communication "), or not have the output of audio frequency be communication audio or individual acoustic equipment otherwise at all.Be intended among this paper to require content and the disclosed content of protection to can be applicable to be connected to miscellaneous equipment, be connected to miscellaneous equipment, or be not connected to the individual acoustic equipment of any miscellaneous equipment at all through electricity and/or photoconductive cable with wireless mode.Be intended among this paper to require content and the disclosed content of protection to can be applicable to physical configuration and be configured to the individual acoustic equipment of wearing nearby at one or two ears of user; Include but not limited to have one or two receiver headphone, above-head headphone, neck rear headphone, have a communication microphone head-telephone (for example, remote microphone), wireless head-telephone (ear's receiver), single earphone or earphone to and in order to the helmet or the cap of the combination receiver of supporting ear's protection and/or voice communication.Requiring the content of protection and other embodiment of the individual acoustic equipment that disclosed content can be applicable among this paper will be tangible to those skilled in the art.

Fig. 1 a and Fig. 1 b provide the block diagram of at least a portion of two feasible embodiments of individual acoustic equipment 1000a and 1000b respectively.As will be explained in more detail; The sound that different microphones are detected make toward complex analysis with confirm individual acoustic equipment (as; Individual acoustic equipment 1000a or 1000b) the current operation status of one or more receiver, wherein the feasible mode of operation of each receiver is: 1) be placed on ear nearby and 2) be not placed on ear nearby.Current operation status through one or more receiver this toward complex analysis further determines whether to have occurred the change of the mode of operation of one or more receiver.Through confirming the change of current operation status and/or the mode of operation through determining whether to exist one or more receiver; Confirm current operation status and/or whether have the change of the whole mode of operation of individual acoustic equipment, wherein the feasible mode of operation of individual acoustic equipment is: 1) be placed on around the user's head fully or on the user's head, 2) part be placed on around the user's head or on the user's head and 3) be not in around the user's head or on the user's head at all.These analyses depend on the existence of the detectable ambient noise sound of different microphones, include but not limited to the sound of wind, the leaf that rustles, the air of blowing over ventilating opening, step, breathing, clothes, flowing water, structure with skin friction make a sound, animal vocalization etc.For the purpose of follow-up discussion, the source of the acoustic noise source 9900 expression environment noise sound of describing among Fig. 1 a and Fig. 1 b.

As will be explained in more detail, each among individual acoustic equipment 1000a and the 1000b can have any physical configuration in a large amount of physical configuration.Fig. 2 a to Fig. 2 d has described any the feasible physical configuration that can adopt among individual acoustic equipment 1000a and the 1000b.Some physical configuration in these physical configuration of describing combine single receiver 100 with an ear in the ear that only takies the user, and other physical configuration combines a pair of receiver 100 with two ears in the ear that takies the user.Yet, should be noted that for ask discuss simple, only with Fig. 1 a and Fig. 1 b in each describe relevantly and describe single receiver 100.Among individual acoustic equipment 1000a and the 1000b each combines at least one control circuit 2000, the sound of these at least one control circuit 2000 more different microphones detections and be in the particular operational state and/or in response to confirming the specific change of mode of operation to have occurred in response to the integral body of definite individual

acoustic equipment

1000a or 1000b and/or receiver 100 and take any possible action in the various possible action.Fig. 3 a to Fig. 3 f has described the feasible electrical architecture that control circuit 2000 can adopt.

Like what described among Fig. 1 a, each receiver 100 of individual acoustic equipment 1000a combines to limit the housing 110 of disposing the cavity 112 of interior microphone 120 at least.Further, housing 110 carries the ear's male part 115 around cavity 112 openings.Path 117 pass that ear's male part 115 forms and with the open communication of cavity 112.In some embodiments, can through from avoid damaging in order to protection microphone 120 or the angle of aesthetic reason cover in the mode of microphone 120 be placed on the perforated panel (not shown) with the permeable screen of acoustically, grid or other form near the path 117 or be placed on the path 117.Housing 110 also carries the outer microphone 130 that is deployed on the housing 110 with the mode that is coupled to the extraneous environment of housing 110 through acoustically.

When the ear that correctly is placed on receiver 100 user nearby the time; Make ear's male part 115 of this receiver 100 take the part of the user head adjacent and/or the part of this ear, and be placed to path 117 towards the inlet of the duct of going to this ear with this ear.As a result of, cavity 112 and path 117 are coupled to duct with acoustically.In addition as a result of, between the part of user's head that ear's male part 115 takies and/or ear and ear's male part 115, form acoustic seal at least to a certain degree.This acoustic seal is now to isolate at least to a certain degree on the environment in cavity 112, path 117 and the duct of acoustically coupling and housing 110 external worlds and the user's head acoustics.This makes part, ear's male part 115 and the housing 110 of user's head and/or ear cooperate so that passive noise reduction to a certain degree (PNR) to be provided.As a result of, before arriving cavity 112, path 117 and duct, make the sound attenuating that sends from the acoustic noise source 9900 of the extraneous position of housing 110 at least to a certain degree.

Yet, when from user's ear remove receiver 100 nearby so that part user's head and/or this ear is when no longer taking ear's male part 115, cavity 112 all is coupled to the environment in housing 110 external worlds with path 117 with acoustically.This has reduced the ability that receiver 100 provides PNR, and this sound that allows to send from acoustic noise source 9900 arrives cavity 112 and path 117 with less decay.Will recognize easily like those skilled in the art; The depression character of cavity 112 can continue to provide to entering into the decay at least to a certain degree (in one or more frequency range) from the sound in acoustic noise source 9900 of cavity 112, but the degree of decay is still when correctly being placed on receiver ear middle nearby.

Therefore; Along with receiver 100 changes mode of operation being placed between and so the placing of ear nearby, microphone 120 can detect the signal that the sound that sends from acoustic noise source 9900 provide the resulting difference in attenuation of reflection along with interior microphone 120 in the layout of the interior microphone 120 in the cavity 112 made.Further, with the mode that is coupled to the extraneous environment of housing 110 through acoustically in the housing 110 or the layout of the outer microphone 130 on the housing 110 make that detection is from the same sound in acoustic noise source 9900 under the situation that change that outer microphone 130 can microphone 120 runs into during not having decays.Therefore, outer microphone 130 the change reference signal of unaltered same sound basically that the mode of operation of expression through receiver 100 can be provided.

The two that control circuit 2000 receives in these microphone output signals; And as will be in greater detail; Adopt one or more check-up at least the difference between these signals to confirm that receiver 100 is to be in the mode of operation nearby that is placed on ear, still is in the mode of operation nearby that is not placed on ear.Only combine under the situation of a receiver 100 at individual acoustic equipment 1000a; It is to be in to be placed on around the user's head or in the mode of operation on the user's head, still to be in the mode of operation of so placing that the mode of operation of confirming receiver 100 can be equal to the integral body of confirming individual acoustic equipment 1000a.The confirming of the mode of operation integral body of 2000 couples of individual acoustic equipment 1000a of control circuit and/or receiver 100 makes control circuit 2000 can further determine when the change that mode of operation occurred.As also will be in greater detail, control circuit 2000 can be taked exercises in response to the change of the mode of operation of the integral body of confirming to have occurred individual acoustic equipment 1000a and/or receiver 100.

Yet; Combine at individual acoustic equipment 1000a under the situation of two receivers 100, the individual inspiration of difference can make it possible to carry out the complicated definite of the whole mode of operation of individual acoustic equipment 1000a between the signal that the outer microphone 130 of each and interior microphone 120 provide in two receivers 100.In some embodiments, can control circuit 2000 be arranged such that confirm in the receiver 100 at least one be placed on ear cause integral body to individual acoustic equipment 1000a to be in to be placed on around the user's head nearby or mode of operation on the user's head in definite.In this embodiment; Be in the mode of operation nearby that is placed on ear as long as control circuit 2000 continues to confirm one in the receiver 100, to change that another mode of operation in the receiver 100 occurred any confirm can not to change individual acoustic equipment 1000a be in be placed on around the user's head or mode of operation on the user's head in confirm.In other embodiments, can control circuit 2000 be arranged such that in the receiver 100 any be in confirming in the mode of operation nearby that is placed on ear cause integral body to individual acoustic equipment 1000a to be in not to be placed on around the user's head or mode of operation on the user's head in confirm.In other other embodiment; Have only microphone 120 and outer microphone 130 in the combination in two receivers 100, and be arranged such that control circuit 2000 and confirm whether this receiver 100 is in the integral body that causes in the mode of operation nearby that is placed on ear individual acoustic equipment 1000a and whether is in and is placed on user's head definite on every side or in the mode of operation on the user's head.

Like what described among Fig. 1 b, individual acoustic equipment 1000b and individual acoustic equipment 1000a are substantially similar, but the difference that exists is that the receiver 100 of individual acoustic equipment 1000b combines acoustic driver 190 extraly at least.(and as described among Fig. 1 b) in some embodiments is placed on acoustic driver 190 in the housing 110 together with the mode that the part of housing 110 partly limits cavity 112 with at least a portion of acoustic driver 190.Place this mode of acoustic driver 190 and in housing 110, create another cavity 119, this another cavity 119 was opened through acoustic driver 190 and cavity in 112 minutes.As will be explained in more detail; In some embodiments; The audio frequency that provides with electrical way that adopts acoustic driver 190 to receive from the miscellaneous equipment (not shown) with acoustically output, and/or, comprise ANR anti-noise sound with the inner sound that generates of acoustically output.

In some modification; Cavity 119 can be coupled to the extraneous environment of housing 110 via one or more acoustical ports (only showing one of them), through they yardstick each acoustical ports be tuned to the audible frequency of selected scope strengthen the characteristic of the acoustics output of sound through acoustic driver 190 with the mode that can recognize easily by one of skill in the art.In addition, in some modification, one or more tuned port (not shown) can be coupled

cavity

112 and 119, and/or can be coupled to the extraneous environment of housing 110 to cavity 112.Though specifically do not describe; But can be being placed on the perforation of the permeable screen of acoustically, grid or other form or fibre structure in one or more port in this port preventing that fragment or other pollutant from therefrom passing, and/or so that certain other acoustic impedance of level to be provided.

Like what also describe among Fig. 1 b, individual acoustic equipment 1000b can further be different from individual acoustic equipment 1000a through further combination communication microphone 140 to make it possible to carry out two-way communication through the sound nearby that detects user's mouth.Therefore, communication microphone 140 signal from the sound nearby of user's mouth that can provide that expression communication microphone 140 detected.As will be in greater detail, can be under the control of control circuit 2000 changing sound that expression comprises that communication microphone 140 detects and acoustic driver 190 with one or more mode will be with the signal of the various sound of the sound of acoustically output.Though depict communication microphone 140 with outer microphone as and to open in 130 minutes and different microphones, should be noted that also that in some embodiments outer microphone 130 can be same microphone with the microphone 140 of communicating by letter.Thereby, in some embodiments, in the process of supporting two-way communication and in the process of mode of operation integral body and/or receiver 100 of confirming individual acoustic equipment 1000b, all can adopt single microphone.

Because individual acoustic equipment 1000b does not combine at individual acoustic equipment 1000a to combine acoustic driver 190 under the situation of acoustic driver 190, it is feasible that the enforcement of the functional individual acoustic equipment 1000b of ANR is provided.Will recognize easily like those skilled in the art, be placed on receiver 100 ear nearby the time the previous acoustic seal of describing formation make providing of ANR be easier to and more effective.Be coupled to housing 110 extraneous environment to cavity 112 and path 117 with acoustically and reduce like what when so not placing receiver 100, occur based on feedback and based on the validity of the ANR of feedforward.Therefore, no matter whether the enforcement of individual acoustic equipment 1000b provides ANR, and the attenuation degree of the ambient noise sound that interior microphone 120 detected becomes big than when so not placing receiver 100, continuing nearby the time being placed on receiver 100 in ear.Thereby, whether no matter ANR be provided, still can use the control circuit 2000 external microphones 130 and the analysis of the signal of interior microphone 120 outputs to determine whether to occur the change of mode of operation integral body and/or receiver 100 of individual acoustic equipment 1000b.

Any action during control circuit 2000 among individual acoustic equipment 1000a and the 1000b in any can be taked to move in a large number in particular operational state and/or in response to the change of mode of operation integral body and/or single receiver 100 of confirming to have occurred individual acoustic equipment 1000a or 1000b in response to the whole and/or single receiver of confirming individual acoustic equipment 1000a or 1000b 100 is current.The definite essence of the action of taking can depend on whether function that individual acoustic equipment 1000a or 1000b carry out and/or individual acoustic equipment 1000a or 1000b have one or two in the receiver 100.Control circuit 2000 is being taked in the support of this action, each among individual acoustic equipment 1000a and the 1000b can further combine controlled Audio Controller 3400 of the controlled ANR circuit 3200 of the controlled power supply 3100 of control circuit 2000, control circuit 2000, control circuit 2000 and in the interface 3300 one or more.It should be noted that to asking and discuss and describe simply, had a mind to omit the interconnection between any and the acoustic driver 190 in Audio Controller 3400 and the ANR circuit 3200.Describe in further detail elsewhere in addition and describe that signal in order to the audio frequency that provides expression ANR anti-noise sound and/or with electrical way is sent to acoustic driver 190 so that with the interconnection of acoustically output.

In individual acoustic equipment 1000a and 1000b any in order to the power supply 3100 of the limited ability that electric energy is provided (for example combines; Battery) under the situation; Control circuit 2000 can be current operation status and/or the change that mode of operation occurred in response to definite particular operational state, and its providing electric energy is connected, turn-offed or if not change to signaling power supply 3100.Extraly and/or can be as an alternative; In individual acoustic equipment 1000a and 1000b any combines ANR circuit 3200 to provide under the functional situation of ANR, and its providing ANR is connected, turn-offed or if not change to control circuit 2000 signaling ANR circuit 3200 similarly.Pass through instance; At individual acoustic equipment 1000b is to adopt the acoustic driver 190 of each receiver 100 to provide under the situation from a pair of headphone of the acoustics output of the audio frequency of audio-source (not shown) and/or ANR; Control circuit 2000 can in response to confirm to have existed from be placed on around the user's head or on the user's head to the change of the mode of operation of the individual acoustic equipment 1000b that no longer so places, provide operating power 3100 to save electric energy through the electric energy that reduces or integrally turn-off to other assembly of individual acoustic equipment 1000b.Can be as an alternative and/or extraly; Control circuit 2000 can in response to the integral body of confirming individual acoustic equipment 1000b for predetermined amount of time at least be in be not placed on around the user's head or state on the user's head in, operating power 3100 is to save electric energy.In some modification, control circuit 2000 also can in response to the change of the mode of operation of confirming to have existed individual acoustic equipment 1000b be placed on around the user's head once more or on the user's head operating power 3100 with other assembly electric energy is provided once more to individual acoustic equipment 1000b.Among other assembly that can be changed to it to providing of 3100 pairs of electric energy of power supply can be ANR circuit 3200.Can be as an alternative, control circuit 2000 directly signaling ANR circuit 3200 reduces, stops and/or recovering its providing ANR.

Any combination in individual acoustic equipment 1000a and 1000b can be under thereby another equipment (not shown) signals the situation of the interface 3300 of carrying out function with control and this another equipment mutual, and control circuit 2000 can be connected, turn-off with this another equipment of signaling or if not change is mutual in response to the change operation-interface 3300 of confirming to have occurred mode of operation.Pass through instance; (for example provide at individual acoustic equipment 1000b from another equipment; CD or MP3 audio file player, mobile phone etc.) the situation of a pair of headphone of acoustics output of audio frequency under, control circuit 2000 can in response to confirm to have existed from be placed on around the user's head or on the user's head change operation-interface 3300 to the mode of operation of the individual acoustic equipment 1000b that no longer so places suspend playback with this another equipment of signaling through the record audio of individual acoustic equipment 1000b.In some modification, control circuit 2000 also can be in response to another change of confirming to have existed mode of operation so that individual acoustic equipment 1000b be placed on around the user's head again or on the user's head operation-interface 3300 recover this playback with another equipment of signaling.Can think that this is user's the convenient characteristic of expectation, allow in response to the user from their head remove at once individual acoustic equipment 1000b with the instance automatic pause of someone talk around theirs with recover user's enjoying to audio recording.Through another instance; Another equipment that is intended to produce the potential damage sound level with operating period at individual acoustic equipment 1000a (for example; Under the situation of a pair of ear protector that the parts of building, mining or industrial machinery) uses together, control circuit 2000 can operation-interface 3300 with about individual acoustic equipment 1000a whether current be in be placed on around the user's head or mode of operation on the user's head in signal to miscellaneous equipment.A part that can be used as the security feature of another equipment is carried out this content; If wherein do not exist for the mode of operation of individual acoustic equipment 1000a changed into individual acoustic equipment 1000a be placed on around the user's head or user's head on and/or individual acoustic equipment 1000a current be in be placed on around the user's head or state on the user's head in so that its receiver 100 can be during another operation of equipment to user's hearing the indication that receives from individual acoustic equipment 1000a of protection is provided, then stop another operation of equipment automatically.

Any combination in individual acoustic equipment 1000a and 1000b can be revised under the situation of expression with the Audio Controller 3400 of the signal of acoustically output and/or the sound that detects, and control circuit 2000 can signaling Audio Controller 3400 changes its course, quiet or if not change the sound of one or more signal indication.Pass through instance; Provide under the situation from a pair of headphone of the acoustics output of the audio frequency of another equipment at individual acoustic equipment 1000b; Control circuit 2000 can be in response to confirming that but in the receiver 100 one change and no longer be in the mode of operation nearby that is placed on ear another in the receiver 100 still (promptly; Being in part in response to the integral body of confirming individual acoustic equipment 1000a or 1000b is arranged in around the user's head or state on the user's head), signaling Audio Controller 3400 is redirected to expression in the receiver 100 through one the signal of sound of acoustic driver 190 acoustics output in the receiver 100 another acoustic driver 190.The user can think expectation through spur in the receiver 100 another at once away from another ear to talk at once with someone of theirs on every side, come at once all to be directed to the left side of stereo audio and right audio track at once in the receiver 100 in the mode of operation nearby that still is in the ear that is placed on the user whichsoever.Through another instance; At individual acoustic equipment 1000b is further to combine under the situation of communication microphone 140 with the head-telephone of support two-way communication; Control circuit 2000 can signaling Audio Controller 3400 in response to confirm individual acoustic equipment 1000b be not in be placed on around the user's head or state on the user's head in the sound whatsoever that detects communication microphone 140 quiet, and with quiet in response to confirm that individual acoustic equipment 1000b stops this signal again in the state of so placing.

It should be noted that; In individual

acoustic equipment

1000a and 1000b any and another equipment alternately with signal to another equipment control and this another equipment mutual, with under the signal that receives expression sound from another equipment and/or the situation with signal from sound to another device transmission that represent, can adopt in order to any technology in the various technology that make it possible to carry out this signalling.More specifically; Interface 3300 (for example can adopt various wireless technologys; Infrared, radio frequency etc.) any wireless technology in is signaled to another equipment, perhaps can be via combining to be coupled to the electricity of another equipment and/or the cable of optical conductor signals to another equipment.Similarly, the exchange of signal and another equipment of expression sound can adopt various based on cable or wireless technology in any technology.

It should be noted that and to be deployed in the electronic building brick of any among individual acoustic equipment 1000a and the 1000b at least in part in the housing 110 of at least one receiver 100.Can be as an alternative, can be deployed in electronic building brick at least in part through wired and/or wireless connections and be coupled in another housing of at least one receiver 100 of individual acoustic equipment 1000a or 1000b.More specifically; Other electronic building brick of any in microphone 120, outer microphone 130, communication microphone 140 (under situation about existing) and/or the acoustic driver 190 (under situation about existing) in the housing 110 of at least one receiver 100 can carry and can be coupled to, and in control circuit 2000, power supply 3100, ANR circuit 3200, interface 3300 and/or the Audio Controller 3400 one or more.Further, in the embodiment that has more than one receiver 100, can adopt wired and/or wireless connections make it possible between the electronic building brick of disposing among two housings 110, signal.Again further; Though describe outer microphone 130 and be discussed as and be deployed in the housing 110; Though and can think this outside microphone 130 be used for also in ANR circuit 3200 (under situation about existing) provides the embodiment of input, expect that it is feasible that the outer microphone 130 of handle is deployed among individual acoustic equipment 1000a and the 1000b on any other part.

Fig. 2 a to Fig. 2 d has described any various feasible physical configuration that can adopt among individual acoustic equipment 1000a and the 1000b of Fig. 1 a and Fig. 1 b respectively.As discussed previously; The different embodiments of any can have one or two receivers 100 among individual acoustic equipment 1000a and the 1000b, and is configured to so that can be placed on the mode nearby that each receiver 100 is placed on ear near the user's head or on the user's head.

It is " above-head " physical configuration 1500a of the form of ear-hang and a pair of receiver 100 that connects through the headband 102 that is configured to above user's head, wear separately that Fig. 2 a has described to combine.Yet, though specifically do not describe, physical configuration 1500a for one in the receiver 100 that selects modification only to combine to be connected to headband 102.Another is for selecting the modification can be with the different belt replacement head bands 102 that are configured to wear around the rear portion of the rear portion of user's neck and/or head.

In physical configuration 1500a, each in the receiver 100 can be " on the ear " perhaps ear-hang of " ear top " form according to their size with respect to the auricle of common people's ear.As discussed previously, each receiver 100 has the housing 110 that forms cavity 112, and housing 110 carries ear's male part 115.In this physical configuration, ear's male part 115 is to surround the periphery of the opening in cavity 112 and run through the form of its flexible liner that is formed with the path 117 that is communicated with cavity 112 (can be annular).

Under the situation that ear-hang is worn above being configured to receiver 100 as ear, the auricle that housing 110 and ear's male part 115 are cooperated with the ear that surrounds the user basically.Thereby when this modification of the individual acoustic equipment 1000a of correct placement, headband 102 and housing 110 cooperations can't see to push ear's male part 115 to the part of the sidepiece of user's head of the auricle that surrounds ear so that auricle is hiding basically.Under the situation that ear-hang is worn on being configured to receiver 100 as ear, housing 110 surrounds the auricle periphery that the ear's auricle that is associated enters the mouth with 115 cooperations of ear's male part to hide.Thereby when correct placement, headband 102 is pushed ear's male part 115 with housing 110 cooperations with the periphery that is directed against auricle through the visible mode of the part that might make the auricle periphery.The flexible material of ear's male part 115 is used for being coupled ear's duct and cavity 112 with acoustically through path 117 to the part of the head that surrounds auricle or the pushing of periphery of auricle, and is used for forming the acoustic seal of previous discussion so that can carry out providing of PNR.

But Fig. 2 b described with the substantially similar receiver 100 of physical configuration 1500a in another above-head physical configuration 1500b that combines to be connected to the microphone 140 of communicating by letter of housing 110 extraly via microphone boom 142.When the ear that correctly is placed on this specific of receiver 100 user nearby the time, microphone boom 142 generally the part of user's cheek other extend with place communication microphone 140 the mouth of being close to the users to detect from the sound of voice of user's mouth with acoustically output.Yet; Though specifically do not describe; But physical configuration 1500b's is feasible for selecting modification; Wherein more directly be deployed in communication microphone 140 on the housing 110, and communication microphone 140 is to open wide with the hollow pipeline that transmits sound nearby to communication microphone 140 through pipeline from user's mouth at the end nearby of user's mouth and at the other end nearby of communication microphone 140.

Fig. 2 b also with dashed lines to have described in the receiver 100 another be feasible so that only combine to finish the another modification of one physical configuration 1500b in the receiver 100 of hop communication microphone 140.In this another modification, headband 102 still will exist and will continue to be worn above user's head.

As discussed previously, control circuit 2000 and/or other electronic building brick can be deployed in the housing 110 of receiver 100 at least in part, perhaps can be deployed at least in part in another housing (not shown).Respectively for physical configuration 1500a and the 1500b of Fig. 1 a and Fig. 1 b, can merge to this another housing in the headband 102 or merge to and be connected in the multi-form belt of at least one receiver 100.Further; Though each among physical configuration 1500a and the 1500b described to be deployed in the outer microphone 130 on each housing 110 of each receiver 100 providing of each; But replacing of these physical configuration selects modification to be fine; Wherein be deployed in other places to single outer microphone 130, comprise and be not limited on the headband 102 or on frame 142.In having receiver 100 in two this modification, can in the interior microphones of disposing separately in each the independent cavity 112 in the signal of single this outer microphone 130 outputs and two receivers 100 120 separately in each signal in the signal exported of microphone compare separately.

It is " in the ear " the physical configuration 1500c in-ear phone form and that can or can't pass through a pair of receiver 100 of cotton rope and/or electricity or the connection of optics conducting cable (not shown) separately that Fig. 2 c has described to combine.Yet though specifically do not describe, replacing of physical configuration 1500c selects modification can only combine in the receiver 100.

As discussed previously, each in the receiver 100 has the housing 110 that forms unlimited cavity 112 and carry ear's male part 115.In this physical configuration, ear's male part 115 is the forms that limit the shape of the hollow pipeline basically shape of the path 117 be communicated with cavity 112.In some embodiments, ear's male part 115 in other embodiments, forms ear's male part 115 with housing 110 by forming with housing 110 material different (can be the material more flexible than the material that forms housing 110 through it).

The partial cooperation of ear's male part 115 and/or housing 110 with the part of the duct of the ear that takies the user and/or external ear so that housing 110 can cavity 112 through path 117 and duct with the acoustically coupling towards on reside in duct inlet nearby.Thereby, when appropriate placement receiver 100, " clog " basically the inlet of going to duct with the acoustic seal of creating previous discussion so that can carry out providing of PNR.

But Fig. 2 d described with the substantially similar receiver 100 of physical configuration 1500c in one be physical configuration 1500d in another ear of monaural earphone (being also referred to as " ear's receiver " sometimes) form that combines the microphone 140 of communicating by letter of housing 110 deploy extraly.When the ear that correctly is placed on this receiver 100 user nearby the time, communication microphone 140 with choose in order to the mode that detects the sound of voice that the user produces generally nearby towards user's mouth.Yet; Though specifically do not describe; But physical configuration 1500d's is feasible for selecting modification; Wherein through the pipeline (not shown) be sent to communication microphone 140 from the sound nearby of user's mouth, perhaps wherein communication microphone 140 be deployed in communication microphone 140 be placed on user's mouth nearby and be connected on the microphone boom 142 of housing 110.

Though specifically do not describe among Fig. 2 d, the receiver of describing 100 with physical configuration 1500d of communication microphone 140 can maybe can't be attended by form for can or being connected to another receiver (such as in the receiver of being described among Fig. 2 c 100) of the in-ear phone of the receiver of describing among Fig. 2 d 100 via cotton rope or conducting cable (also not shown).

With reference among physical configuration 1500b and the 1500d the two, as discussed previously once more, support that the embodiment of the individual acoustic equipment 1000b of two-way communication is feasible, the microphone 140 of wherein communicating by letter is same microphones with outer microphone 130.In order to make it possible to carry out two-way communication, preferably perhaps if not be deployed in the end that this single microphone is placed on frame 142 on the housing 110 so that can carry out the mode of voiceband user sound detection.Further, in the modification of this embodiment with a pair of receiver 100, single microphone can be used for all three the functions in the two of outer microphone 130 and the microphone 140 of communicating by letter.

Fig. 3 a to Fig. 3 f has described in individual

acoustic equipment

1000a and 1000b the feasible electrical architecture that control circuit 2000 can adopt in any embodiment.As in the situation of Fig. 1 a-Fig. 1 b; Though the feasible embodiment of individual

acoustic equipment

1000a and 1000b can have single receiver 100 or a pair of receiver 100, for ask understand easily with simple and Fig. 3 a-Fig. 3 f in each electrical architecture of describing relevantly and describing only to be associated with a receiver 100.In embodiment with a pair of receiver 100, between two receivers 100, can duplicate their assemblies part and/or with electrical architecture that any figure among Fig. 3 a-Fig. 3 f discusses relevantly at least a portion of any electrical architecture so that control circuit 2000 can receive and analyze from the outer microphone 130 of two receivers 100 and the signal of interior microphone 120.Further, do not present these electrical architectures to describe less important assembly (for example, microphone preamplifier, audio frequency amplifier, analog to digital converter, digital to analog converter etc.) intentionally in the hope of understanding easily with the form of some simplification clearly.

As discussing for Fig. 1 a-Fig. 1 b is previous, the layout of the interior microphone 120 among individual acoustic equipment 1000a or the 1000b in the cavity 112 of the receiver 100 of any makes it possible to carry out how housing 110 extraneous ambient sounds (using the sound that sends from acoustic noise source 9900 to represent) stood decay at least to a certain degree before interior microphone 120 detects detection.And this decay can be at least in part as the functional result of ANR who provides.Further, the degree of this decay is according to whether being placed on changing of ear to receiver 100 nearby.Whether the sound that in other words, propagate the position of the interior microphone 120 in cavity 112 from acoustic noise source 9900 stands separately according to apply the different transfer functions of decay in various degree to what receiver 100 was placed on ear nearby.

Also discuss as previous, with no matter whether receiver 100 is in the mode that still keeps in the mode of operation nearby that is placed on ear being coupled to the extraneous environment of housing 110 with acoustically and carries outer microphone 130 housing 110 of receiver 100.In other words; Even the sound that 9900 outside microphones 130 are propagated from the acoustic noise source along with transfer function (same sound along with it from the acoustic noise source 9900 inside microphones 120 propagate and stand this transfer function) change according to the change of the mode of operation of receiver 100, also stand with relative relative more stable transfer function than the stable manner attenuates sound.

In each electrical architecture in these electrical architectures, microphone 130 confirmed with the signal of interior microphone 120 outputs whether receiver 100 is in the mode of operation nearby that is placed on ear outside control circuit 2000 adopted in analysis.The signal that uses 130 outputs of outer microphone is as the reference that signal was directed against of microphone 120 outputs in relatively, and whether the difference of analyzing between these signals that the difference of the transfer function that sound stands in each the process in arriving outer microphone 130 and interior microphone 120 causes is consistent with the receiver of placement like this with definite these differences.

Yet,, also can adopt the signal of two or one outputs in outer microphone 130 and/or the interior microphone 120 for other purpose (including but not limited to various forms of) based on feedback with based on the ANR that feedovers like what will be explained in more detail.Further, at least some electrical architectures in these electrical architectures, control circuit 2000 can adopt various compensating technique PNR and/or the ANR influence for the detection of 120 pairs of sound of interior microphone.

Fig. 3 a described can be in individual acoustic equipment 1000a that PNR is provided at least and the 1000b any in the feasible electrical architecture 2500a of the control circuit 2000 that uses.When adopting electrical architecture 2500a, the controller 950 and the compensator 310 of control circuit 2000 incorporating interconnectings, controller 950 and compensator 310 are to analyze from interior microphone 120 other difference of signal level with the signal of outer microphone 130 receptions.

Interior microphone 120 detects the more feasible attenuated form of the sound that sends from the cavity 112 interior acoustic noise sources 9900 that exist, and outputs to controller 950 to the signal of this sound of expression.Outer microphone 130 detects the same sound that sends from the acoustic noise source 9900 of the position in cavity 112 external worlds, and outputs to compensator 310 to the signal of this sound of expression.Compensator 310 receiver 100 be placed on ear nearby the time make signal stand following transfer function from outer microphone 130, this transfer function be chosen as in order to through with the sound that sends from acoustic noise source 9900 along with its arrive in the substantially similar mode of transfer function that stands of microphone 120 change the sound of signal indication.Compensator 310 offers controller 950 to gained change signal subsequently, and controller 950 is analyzed from the signal level difference between the signal of interior microphone 120 and compensator 310 receptions.In the process of the signal that analyze to receive, can in being provided with one or more of the setting of difference threshold value, stabilisation delay setting and minimal level be provided for controller 950.

In other process of signal level of the signal of analyzing two receptions, controller 950 can adopt the filter of band pass filter or other type to be restricted to other analysis of signal level the audible frequency of selected scope.Will recognize easily like those skilled in the art; (perhaps a plurality of frequency ranges) of frequency range are chosen under the situation of various acoustic characteristics of the given acoustic seal that can form, path 117 and/or cavity 112, need at least in part the frequency range of ambient noise sound to occur and/or wherein to be easy to detect as mode of operation changing the frequency range that the decay of sound of result's entering cavity 112 changes based on expection wherein.Through instance, in the identifying of the achievement of acoustic energy in this frequency range of many PE noise sound, can be chosen as about 100Hz to 500Hz to the scope of frequency.Through another instance, in this frequency range, be easy to most to detect as mode of operation and change in the identifying of achievement of change of the PNR that at least some modification of physical configuration provide above result's the ear and can be chosen as about 400Hz to 600Hz to frequency range.Yet, will recognize easily like those skilled in the art, can select other frequency range, can select a plurality of discontinuous frequency ranges, any selection of frequency range can be to any reason in a variety of causes.

The change that makes the signal of outer microphone 130 outputs stand the transfer function of compensator 310 makes signal rank that controller 950 can detect the signal that receives from compensator and interior microphone 120 in selected frequency range at it confirm that receiver 100 is in the mode of operation nearby that is placed on ear with the degree that appointment is set through the difference threshold value when similar.Otherwise, confirm that receiver 100 is not in the mode of operation of so placing.For selecting in the embodiment; Compensator 310 receiver 100 be in be not placed on ear nearby the time make signal stand following transfer function from outer microphone 130, this transfer function be chosen as in order to through with the sound that sends from acoustic noise source 9900 along with its arrive in the substantially similar mode of transfer function that stands of microphone 120 change the sound of signal indication.For selecting in the embodiment, the signal rank that controller 950 detects the signal that receives from compensator 310 and interior microphone 120 in selected frequency range at it is confirmed not to be placed on ear to receiver 100 nearby when similar with the degree that appointment is set through the difference threshold value this.Otherwise, confirm that receiver 100 is in the mode of operation nearby that is placed on ear.

In addition other for selecting in the embodiment, can offer controller 950 at signal, and on the contrary, can between interior microphone 120 and controller 950, add to put to replace and select compensator without undergoing following outer microphone 130 outputs of the situation of transfer function.This for selecting compensator when receiver 100 is in the mode of operation nearby that is placed on ear; Perhaps when receiver is not in the mode of operation of placement like this; The signal of microphone 120 output stands following transfer function in will making, this transfer function be chosen as in order to through with the sound that sends from acoustic noise source 9900 along with its arrive in the opposite basically mode of transfer function that stands of microphone 120 change the sound of signal indication.Whether controller 950 confirms with the degree that appointment is set through the difference threshold value is similar whether receiver 100 is so to place based on the signal rank that detects in the selected frequency range subsequently.

Yet, again one for selecting in the embodiment, following interior microphone 120 of the situation of this change that does not have compensator to carry out and outside the signal of each output in the microphone 130 offer controller 950.In this embodiment; One or more difference threshold value is provided with can other two differences in various degree of specification signal level; One of them is in the mode of operation nearby that is placed on ear consistently with receiver 100, and another is in the mode of operation of so placing consistent with receiver 100.Controller detects subsequently that other difference of signal level is to press close to specify one in the difference degree to specify difference degree between the signal of two receptions in the selected frequency range, or another, to determine whether being placed on ear to receiver nearby.In the process of confirming other similitude degree of signal level between the signal, controller 950 can adopt any comparison algorithm in the various comparison algorithms.In some embodiments, the difference threshold value that offers controller 950 is provided with the amount that can show decibel or the difference degree of percentage aspect.

As discussed previously, the current operation status of confirming integral body and/or the receiver 100 of individual

acoustic equipment

1000a or 1000b is the steps necessary in order to the change that determines whether to have occurred mode of operation.In other words, integral body and/or the receiver 100 of controller 2000 through at first confirming individual

acoustic equipment

1000a or 1000b is previous in a mode of operation and the whole and/or same receiver 100 current changes of in another mode of operation, having confirmed to occur mode of operation of confirming individual

acoustic equipment

1000a or 1000b subsequently.

Current in particular operational state and/or in response to the integral body of confirming individual acoustic equipment 1000a or 1000b and/or receiver 100 in response to the change of the state of the integral body of confirming to have occurred individual acoustic equipment 1000a or 1000b and/or receiver 100; Controller 950 as discussed previously the taking of control circuit 2000 are moved; As, signal to power supply 3100, ANR circuit 3200, interface 3300, Audio Controller 3400 and/or other assembly.Yet; As it will be understood to those of skill in the art that; The falseness that generates false sound and/or move the user of receiver 100 with respect to ear at once moves or other action can be detected by in outer microphone 130 and the interior microphone 120 one or two, and can cause the mistake of change of the mode of operation of receiver 100 to be confirmed.This mistake that can cause having occurred the change of the whole mode of operation of individual acoustic equipment 1000a or 1000b is confirmed, and/or receiver 100 is taked unnecessary action.In order to tackle this result, can for controller 950 provide specify in make before the confirming of having occurred that individual acoustic equipment 1000a or the whole mode of operation of 1000b change and/or before responsively taking any action controller 950 allow last instance since the change of the mode of operation of confirming to have occurred receiver 100 rise in the past seclected time section the delay setting.

In some embodiments; Can also specify selected other minimal level setting of minimum signal level for controller 950 provides, one or two (whether through certain compensator) from the signal that interior microphone 120 and outer microphone 130 receive must meet this selected minimum signal rank so that think that these signals are reliable for use in determining whether to be placed on receiver 100 process nearby of ear.This can accomplish in the process that the reliability of the analysis that 950 pairs of existence of controller can be used for being carried out by the ambient noise sound that interior microphone 120 and outer microphone 130 detect is discerned.In response to having the detection carried out for interior microphone 120 and/or outer microphone 130 and/or situation during for the available inadequate ambient noise sound of the generation of interior microphone 120 and 130 pairs of signals of outer microphone; Controller 950 can be prevented simply and attempt to confirm current operation status, prevents the change that has determined whether to occur individual acoustic equipment 1000a or 1000b's and/or receiver 100 mode of operation and/or prevent and take any action, at least till spendable ambient noise sound is available again.Can be as an alternative and/or extraly, controller 950 can temporarily change signal level other analyze based on frequency range with the ambient noise sound of the frequency range outside of using in the process of making great efforts the location signal that if not microphone 120 and outer microphone 130 are exported in analyzing usually.

Fig. 3 b has described the feasible electrical architecture 2500b of spendable control circuit 2000 in the individual acoustic equipment 1000b of the ANR that the acoustics output that means 190 pairs of antinoise sounds of acoustic driver is provided at least.Electrical architecture 2500b and electrical architecture 2500a are substantially similar, but one or more characteristic of the transfer function that electrical architecture 2500b supports to apply in response to the input adjustment compensator 310 that receives from ANR circuit 3200 extraly.According to the type of the ANR that provides, one or two in interior microphone 120 and the outer microphone 130 also can output to ANR circuit 3200 to the signal of the sound of their detections of expression.

In some embodiments; ANR circuit 3200 can provide based on feedback and/or based on the self adaptation form of ANR of feedforward, and wherein the result of self adaptation ANR algorithm can dynamically adjust filter coefficient, gain is provided with and/or other parameter as adopting whatsoever.Will recognize easily that like those skilled in the art the change that this ANR parameter is made will cause the change of the transfer function that the sound to microphone 120 in arriving stands.ANR circuit 3200 offers compensator 310 to the indication that changes parameter and takes into account with the change transfer function that stands the sound of microphone 120 in arriving so that compensator 310 can be adjusted its transfer function.

In other embodiments, ANR circuit 3200 possibly be able to turn on and off, and ANR circuit 3200 can offer compensator 310 to the indication of on-off so that compensator can responsively be changed the transfer function that it applies.Yet, in this other embodiment that controller 950 signaling ANR circuit 3200 turn on and off, can be controller 950 but not indication that ANR circuit 3200 provides ANR circuit 3200 to turn on and off to compensator 310.

Can be as an alternative; Between interior microphone 120 and controller 950, add and put for selecting in the embodiment of compensator, ANR circuit 3200 can to for selecting compensator that input is provided so that it can adjust transfer function that its adopts with reverse arrive in the attenuation of the transfer function that stands of the sound of microphone 120.Perhaps, show the signal that has turned on and off ANR circuit 3200 for selecting compensator to receive.

Fig. 3 c has described the feasible electrical architecture 2500c of spendable control circuit 2000 in the individual acoustic equipment 1000b of the acoustics output that 190 pairs of audio frequency that provide with electrical way of acoustic driver are provided at least except ANR is provided.Electrical architecture 2500c and electrical architecture 2500b are substantially similar; But electrical architecture 2500c supports the acoustics output through 190 pairs of audio frequency that provide with electrical way of acoustic driver (for example, come from the outside or the audio signal of built-in CD Player, broadcast receiver or MP3 player) extraly.Those skilled in the art will recognize easily, and the combination of ANR anti-noise sound and the audio frequency that provides with electrical way can be accomplished through any way in the variety of way so that acoustic driver 190 can be exported the two with acoustically.In the process that adopts electrical architecture 2500c, control circuit 2000 combines another compensator 210 extraly together with compensator 310 and controller 950.

Interior microphone 120 detects the sound (together with other sound of cavity 112 meeting existence) of the more feasible attenuated form of sending from the acoustic noise source 9900 that is positioned at cavity 112 and outputs to compensator 210 to the signal of this sound of expression.Compensator 210 also receives the signal of expression acoustic driver 190 with the audio frequency that provides with electrical way of acoustically output, and from the sound that interior microphone 120 detects, deducts the audio frequency that provides with electrical way at least in part.Compensator 210 can make the signal of the audio frequency that expression provides with electrical way stand following transfer function, this transfer function be chosen as in order to through with change the audio frequency that provides with electrical way as the acoustics output of the audio frequency acoustics result of path 117 and/or cavity 112, that provide with electrical way in the substantially similar mode of transfer function that from the process of acoustic driver 190 inside microphones 120 propagation, stands.Compensator 210 offers controller 950 to gained change signal subsequently, and controller 950 is analyzed from the signal level difference between the signal of

compensator

210 and 310 receptions.

Fig. 3 d has described the feasible electrical architecture 2500d of also spendable control circuit 2000 in the individual acoustic equipment 1000b of the acoustics output that 190 pairs of audio frequency that provide with electrical way of acoustic driver are provided at least except ANR is provided.Electrical architecture 2500d and electrical architecture 2500c are substantially similar; But electrical architecture 2500d is at least when existing inadequate ambient noise sound; In support using extraly the signal level of the audio frequency that provides with electrical way of the signal rank of the signal of microphone 120 outputs and modification other relatively, in wherein this ambient noise sound can be used for making it possible to carry out under sufficient intensity microphone 120 and outside the reliable analysis of difference between the signal exported of microphone 130.In the process that adopts electrical architecture 2500d, control circuit 2000 combines another compensator 410 extraly together with

compensator

210 and 310 and together with controller 950.

The signal rank of the output of the outer at least microphone 130 of controller 950 monitoring, if this signal rank reduce to minimal level be provided with following, the difference between the signal that microphones 120 and outer microphone 130 were exported in then controller 950 was prevented and analyzed.On this situation; If acoustic driver 190 just outputs to the audio frequency that provides with electrical way in the cavity 112 with acoustically, then controller 950 operation compensators 210 are so that compensator 210 stops to revise the signal that from interior microphone 120 receive through any way that compensator 210 offers controller 950 according to the signal of microphone 120 outputs in making under unmodified situation.Compensator 410 receives the signal of expression acoustic driver 190 with the audio frequency that provides with electrical way of acoustically output; And make the signal of the audio frequency that expression provides with electrical way stand following transfer function, this transfer function be chosen as in order to through with change the audio frequency that provides with electrical way as the acoustics output of the audio frequency acoustics result of path 117 and/or cavity 112, that provide with electrical way in the substantially similar mode of transfer function that from the process of acoustic driver 190 inside microphones 120 propagation, stands.Compensator 210 offers controller 950 to gained change signal subsequently, and controller 950 is analyzed from the signal level difference between the signal of interior microphone 120 (compensator 210 is unmodified) and compensator 410 receptions.

Will recognize easily that like those skilled in the art acoustic driver 190 that interior microphone 120 is detected is coupled between the situation of duct different with the intensity of any audio frequency of the acoustically output situation when cavity 112 and path 117 are coupled to the extraneous environment of housing 110 with acoustically and they with acoustically in cavity 112.With the mode of other analysis of signal level between the signal of microphone 120 in being different from and 130 outputs of outer microphone, the integral body of individual acoustic equipment 1000b and/or the current operation status of receiver are confirmed in the analysis of difference between the signal rank of the signal that microphone 120 and compensator 410 are exported in can using.

Fig. 3 e has described the feasible electrical architecture 2500e of spendable control circuit 2000 in any in individual acoustic equipment 1000a that PNR is provided at least and 1000b.When adopting electrical architecture 2500e; Control circuit 2000 incorporating interconnectings subtract each other summing junction 910, sef-adapting filter 920 and controller 950, to analyze signal from interior microphone 120 and outer microphone 130 receptions to draw the transfer function that shows difference between them.

Interior microphone 120 detects the more feasible attenuated form of the sound that the acoustic noise source 9900 that from cavity 112, exists sends, and outputs to the signal of this sound of expression and subtract each other summing junction 910.Outer microphone 130 detects the same sound that sends from the acoustic noise source 9900 of the position in cavity 112 external worlds, and outputs to sef-adapting filter 920 to the signal of this sound of expression.Sef-adapting filter 920 the signal of the filtered version of outer microphones 130 outputs output to from the signal that interior microphone 120 is exported, deduct it subtract each other summing junction 910.Provide back to sef-adapting filter 920 and import from then on subtracting each other the signal that obtains subsequently as the mistake item.This interconnection of subtracting each other between summing junction 910 and the sef-adapting filter 920 makes that subtracting each other summing junction 910 can cooperate before from the signal of interior microphone 120 outputs, deducting, to press close to zero through the signal of microphone 130 outputs outside this transfer function change as far as possible to be reduced to the result who subtracts each other iteratively to draw following transfer function iteratively with sef-adapting filter 920.Sef-adapting filter 920 offers controller 950 to the data that characterize based on the reciprocal transfer function that draws.In the process of the signal that analyze to receive, can the setting of difference threshold value be provided for controller 950, change in being provided with one or more of threshold value setting and minimal level.

As discussed previously, the sound that sends from acoustic noise source 9900 along with it propagate in microphone 120 with outside the microphone 130 each and stand different transfer functions.Can be expressed as first transfer function H to the propagation of this sound 9900 inside microphones 120 to the effect that it converts electrical signal to interior microphone 120 from the acoustic noise source ₁(s).Similarly, can same sound from the propagation of acoustic noise source 9900 outside microphones 130 together with outside microphone 130 be expressed as second transfer function H to the effect that it converts electrical signal to ₂(s).Can use the 3rd transfer function H ₃(s) transfer function that draws through the cooperation of subtracting each other between summing junction 910 and the sef-adapting filter 920 of expression.Along with the mistake item is approaching zero, H ₃(s) near H ₁(s)/H ₂(s).Therefore, along with the mistake item is approaching zero, the transfer function H that draws ₃(s) show at least from the inside microphones 120 in acoustic noise source 9900 with outside the difference of the transfer function that stands of the sound of each propagation the microphone 130.

In the substantially similar embodiment of interior microphone 120 and the characteristic of outer microphone 130 in the process that converts the sound of their detections to electrical signal, can ascribe the transfer function H of the sound of detection to the conversion of electrical signal ₁(s) and H ₂(s) difference of the part of each can be ignored relatively in, and in transfer function H ₃Drawing in the process (s) offset each other effectively.Therefore, outside under the substantially similar situation of the transfer characteristic of microphone 130 and interior microphone 120, the transfer function H that draws ₃(s) along with the mistake item become near zero equal from acoustic noise source 9900 inside microphones 120 and outside the difference of the transfer function that stands of the sound of each propagation the microphone 130.

Also discuss as previous, transfer function that the sound of propagating from acoustic noise source 9900 inside microphones 120 stands is along with receiver 100 changes being placed on change mode of operation between so the placing of ear nearby and.Therefore, along with the mistake item is approaching zero, the transfer function H that draws ₃(s) change that change becomes the transfer function that shows at least that from the acoustic noise source sound that 9900 inside microphones 120 are propagated stands.And further, outside under the substantially similar situation of the transfer characteristic of microphone 130 and interior microphone 120, the transfer function H that draws ₃(s) change becomes and equals from the acoustic noise source change of the transfer function that sound that 9900 inside microphones 120 propagate stands.

In some embodiments, the storage data of the consistent transfer function of the receiver 100 of any the data that receive from sef-adapting filter 920 of controller 950 transfer function that draws sign and the mode of operation that characterizes with mode of operation nearby that is placed on ear and placement like this or another mode of operation are compared.In this embodiment,, controller 950 need be in this mode of operation so that controller 950 detects receiver 100 with the difference threshold value setting of minimum degree like the data class of storing from the data that sef-adapting filter 920 receives for providing appointment.In other embodiments, the data of controller 950 transfer function that draws sign with characterize be placed on ear nearby in the consistent transfer function of receiver 100 the storage data and store data with other of the transfer function of the receiver of so placing 100 unanimities and all compare with characterizing.In this other embodiment, the similitude degree of the storage data of each transfer function in the data that controller 950 can confirm to characterize the transfer function that the draws transfer function consistent with each mode of operation in the feasible mode of operation of sign and receiver.

In the process of the similitude degree between the data item of confirming the sign transfer function; Controller 950 can adopt any comparison algorithm in the various comparison algorithms, and the character of type characteristic that can be through the filter that adopts as sef-adapting filter 920 and/or the data that receive from sef-adapting filter 920 is confirmed it and chosen.Pass through instance; At sef-adapting filter 920 is in the embodiment of finite impulse response (FIR) (FIR) filter, characterizes the transfer function that draws aspect the filter coefficient of the impulse response of the transfer function that the data that receive from sef-adapting filter 920 can draw during specifying time domain.In this embodiment, can adopt DFT (DFT) to be transformed into these coefficients in the frequency domain so that can carry out the comparison of mean square deviation (MSE) value set.Further, be in the embodiment of FIR filter at sef-adapting filter 920, can use the less relatively FIR filter of number of taps, can set up the data of the transfer function that draws that characterizes it relatively than the coefficient of peanut.This can think to keep electric energy and/or allow feasible limited other function of calculation resources input of controller 2000 desired.

Because sef-adapting filter 920 adopts iterative process to draw transfer function; Another incident of the transfer function of the sound that 9900 inside microphones 120 are propagated from the acoustic noise source is perhaps changed in the change that the mode of operation of receiver 100 no matter when occurs, and sef-adapting filter 920 needs the time to draw new transfer function once more.In other words, need the time to allow sef-adapting filter 920 to converge to new separating.Along with this convergence takes place, the data that receive from sef-adapting filter 920 particularly after the change of the mode of operation of receiver 100, can comprise with high magnitude and the data value that more promptly changes relatively.Therefore; Can change the threshold value setting for controller 950 provides, this changes threshold value setting is chosen as with using whether reducing to through changing below the degree that threshold value is provided with appointment so that think that once more the data of the transfer function that sign draws are reliable up to the change speed of the data that receive from sef-adapting filter 920 at ear of the Data Detection receiver that receives from sef-adapting filter 920 100 nearby so that controller 950 is prevented.This that changes the threshold value setting provide reply by generate false sound and/or move to receiver 100 at once with respect to ear in user's the wrong detection instance of mode of operation change of the receiver that falseness moves or other action causes 100 of degree of one or two detection in microphone 120 and the outer microphone 130.This assistance has prevented that mistake that the mode of operation of the integral body of individual acoustic equipment 1000a or 1000b changes is confirmed and/or controller 950 is taked unnecessary action.

In some embodiments; Can also specify selected other minimal level setting of minimum signal level for controller 950 provides, one or two signal demand from the signal that interior microphone 120 and outer microphone 130 receive meets this selected minimum signal rank so that think that these signals are reliable for use in determining whether to be placed on receiver 100 process nearby of ear.Situation during in response to the ambient noise sound of detection that has microphone 120 and/or 130 pairs of signals of outer microphone in inadequate can be used for and/or generation, controller 950 can prevent change and/or the prevention of attempting to have determined whether to occur individual

acoustic equipment

1000a or 1000b's and/or receiver 100 mode of operation to take any action at least till spendable ambient noise sound is available again simply.

What it should be noted that electrical architecture 2500e is feasible for selecting embodiment, and wherein outer microphone 130 offers its output signal and subtracts each other summing junction 910, and interior microphone 120 provides the output signal to sef-adapting filter 920.In this embodiment, the transfer function that draws will be described as the transfer function that draws through the cooperation of subtracting each other summing junction 910 and sef-adapting filter 920 contrary.Yet the mode of the data that controller 950 employing sef-adapting filters 920 provide is the same basically.

Though should also be noted that the acoustic driver 190 of the music of not discussing relevantly or describing in cavity 112 to provide with acoustically output anti-noise sound or with electrical way with electrical architecture 2500e, should be this as advising that the acoustics of this sound in cavity 112 exports the operation that will hinder electrical architecture 2500e.More specifically; Still will draw show from the inside microphones 120 in acoustic noise source 9900 with outside the transfer function of difference of the transfer function that stands of the sound of each propagation the microphone 130, and the current operation status integral body of individual

acoustic equipment

1000a or 1000b and/or receiver 100 still will be confirmable.

Fig. 3 f has described the feasible electrical architecture 2500f of spendable control circuit 2000 in the individual acoustic equipment 1000b of the acoustics output that 190 pairs of audio frequency that provide with electrical way of acoustic driver are provided at least except ANR is provided.Electrical architecture 2500f and electrical architecture 2500e are substantially similar, but the output of the acoustics of the audio frequency that electrical architecture 2500f supports to provide with electrical way extraly.When adopting electrical architecture 2500f, control circuit 2000 is the extra summing junction 930 and the extra sef-adapting filter 940 of subtracting each other of incorporating interconnecting extraly, to analyze the signal that receives from interior microphone 120 and audio-source.

Subtract each other node 930 to the signal of interior microphone 120 outputs except offering to subtract each other to offer the node 910.Provide the audio signal that provides with electrical way as the input of going to sef-adapting filter 940, and export in order to the audio frequency that acoustic driver 190 is carried out.Sef-adapting filter 940 to subtracting each other summing junction 930, deducts the audio signal that provides with electrical way of this altered form to the audio signal output that provides with electrical way of altered form from the signal of interior microphone 120 outputs in subtracting each other summing junction 930.Provide back to sef-adapting filter 940 and import from then on subtracting each other the signal that obtains subsequently as the mistake item.With and subtract each other the similar mode of mode between summing junction 910 and the sef-adapting filter 920; Subtract each other summing junction 930 and sef-adapting filter 940 cooperations to draw following transfer function iteratively, the audio signal that before from the signal of interior microphone 120 outputs, deducting, provides with electrical way through this transfer function change is reduced to a result who subtracts each other iteratively presses close to zero as far as possible.Sef-adapting filter 940 offers controller 950 to the data that characterize based on the reciprocal transfer function that draws.Controller 950 also can be used for being provided with in the same difference threshold value that provides to controller 950 that the process of analyzing the data that sef-adapting filter 920 provides is used in the process of analyzing the data that sef-adapting filter 940 provides, change threshold delay setting and/or minimal level setting.Can be as an alternative, will recognize easily that like those skilled in the art this can think to be provided with desired for sef-adapting filter 940 provides these differences in being provided with.

Through controller 950 to drawing of the transfer function of its analysis and the data characterization that receives from sef-adapting filter 920 depend on ambient noise sound (as; Under the situation of the existence ambient noise sound that acoustic noise source 9900 provides), drawing of the transfer function of its analysis and the data characterization that receives from sef-adapting filter 940 depended on the acoustics output of the sound that 190 pairs of acoustic driver provide with electrical way through controller 950.As to those skilled in the art will be clearly; Be placed on the result who changes mode of operation nearby between and so the placing of ear as receiver 100, the acoustic characteristic of path 117 and cavity 112 alternately is coupled to duct along with them and is coupled to housing 110 extraneous environment and changes.In other words, the transfer function that the sound of propagating from acoustic driver 190 inside microphones 120 stands changes mode of operation along with receiver 100 and changes, and is then, also like this through the transfer function that the cooperation of subtracting each other summing junction 930 and sef-adapting filter 940 draws.

In some embodiments, the storage data of the consistent transfer function of the receiver 100 of any the data that receive from sef-adapting filter 940 of controller 950 transfer function that draws sign and the mode of operation that characterizes with mode of operation nearby that is placed on ear and placement like this or another mode of operation are compared.In this embodiment, for controller 950 provide data that appointment receives from sef-adapting filter 940 need with the difference threshold value setting of minimum degree like the data class of storage so that controller 950 confirms that receivers 100 are this mode of operation.In other embodiments, controller 950 the data that characterize this transfer function that draws with characterize be placed on ear nearby in the consistent transfer function of receiver 100 the storage data and store data with other of the transfer function of receiver 100 unanimities of so placement and all compare with characterizing.In this other embodiment, the similitude degree of the storage data of each transfer function in the data that controller 950 can confirm to characterize the transfer function that the draws transfer function consistent with each mode of operation in the feasible mode of operation of sign and receiver 100.

Controller 950 can adopt any or two data that provide in sef-adapting filter 920 and 940, and can according to one of various situation Dynamic Selection or the two is so that use mode of operation integral body and/or receiver 100 to increase individual

acoustic equipment

1000a or 1000b to change the definite accuracy that occurs.In some embodiments; Switch between the audio frequency whether controller 950 provided with electrical way with acoustically output through acoustic driver 190 according to (at least in part), in adopting sef-adapting filter 920 and 940 one or another data that provide.In other embodiments, controller 950 carries out this switching based on (at least in part) for dropping on the signal rank that minimal level is provided with the signal of one or two output in the microphone 120 and outer microphone 130 in the appearance monitoring of one or two signal in these following signals.

Can adopt simulation or digital circuit or the combination of the two with each electrical architecture in the electrical architecture that Fig. 3 a-Fig. 3 f discusses relevantly.Under the situation that adopts digital circuit at least in part; This digital circuit can comprise visit and carry out the treatment facility (for example, digital signal processor) that makes treatment facility receive, analyze, compare, change and/or export the sequence of machine-readable instructions of one or more signal like what will describe.As also will describe, this command sequence can be so that treatment facility be made integral body and/or receiver 100 definite to whether correctly placing among individual acoustic equipment 1000a and the 1000b one in response to the result of analytic signal.

Interior microphone 120 and outer microphone 130 can be respectively any microphone in the microphone of various kinds naturally, include but not limited to electret microphone.Though do not specifically illustrate or discuss, can adopt one or more amplifier module in microphone 120 and/or the outer microphone 130 in being built into to amplify or signal that if not microphone 120 and/or outer microphone 130 are exported in the adjustment.Preferably, the sound detection of outer microphone 130 and interior microphone 120 and signal output characteristic are substantially similar to avoid any needs to compensation essence sound detection or signal output difference.

Analyzing under the situation of characteristic of the signal that microphone provides to comprise with the data mode of comparing of storage, can be in the data of taking and/or through the modeling of acoustic characteristic draw storage of various test periods through various measurements.This test can comprise that effort draws the corresponding data of average measurement value of the use of individual acoustic equipment through the representative sample of the size and dimension of people's ear and head.

As discussed previously, can adopt the frequency of the sound of analyzing in the process of the interior microphone of one or more band pass filter restriction ratio 120 and the sound of outer microphone 130 detections.This can any electrical architecture in electrical architecture 2500a-2500f in and carry out in the many modification in its possible variant.Like what before also discussed; Even in the frequency of choosing for this analysis can be to contain under the situation of any a plurality of scopes of envisioning frequency of sound or a scope, finally choose any frequency range and will depend on and think the frequency that might occur ambient noise sound at it.Yet what frequency finally chooses what frequency range also can need less electrical energy and/or what frequency simpler for analysis meeting for analysis based on.

As the technical staff that is familiar with ANR will recognize easily, tends to be limited in the frequency range of the noise sound that can on amplitude, reduce through the acoustics output of anti-noise sound based on feedforward and based on the embodiment of the ANR of feedback.Really, the enforcement of restriction ANR is with the amplitude of the noise sound that reduces to occur at lower frequency (usually at about 1.5KHz and following), and the amplitude that makes the enforcement of PNR attempt to reduce in the noise sound of upper frequency appearance is not to be rare.If in making microphone 120 and outside in the process of comparison between the sound that detects of microphone 130, or sound that microphone 120 detects during making and the sound of setting up the audio frequency that provides with electrical way between the process of comparison in the lower frequency of frequency eliminating employing ANR in the process that reduces the ambient noise sound amplitude of adopting; Then as need not be in response to the result of their operation of input change that receives from ANR circuit 3200 of current state about it, can be so that use the design of compensator whatsoever simpler.This will reduce power consumption and complexity.Really; If the frequency that in making the process of comparison, adopts through the medium audible frequency more than the frequency of ANR decay (for example is; 2KHz or 4KHz), then can under the situation of relatively having combined of making of controller 950 difference of the fixedly expected level of amplitude between the noise sound of the outer microphone 130 of this frequency and each detection in the interior microphone 120, avoid comprising among the electrical architecture 2500a-2500d (or its modification) one or more compensator in one or more.Pass through instance; PNR than outer microphone 130 receiver 100 be in the ear position adjacent in the time this same noise sound of detecting content provide in the noise sound of microphone 120 detections under the situation about reducing of 20dB, then controller 950 can confirm that after the amplitude difference that detects these two noise sound that microphone detected that are less than 20dB basically receiver 100 does not put in place.This will further reduce power consumption and complexity.

Also discuss as previous, can cause the scene that the microphone 120 in making it possible to carry out and the reliable analysis of the sound difference of outer microphone 130 detections is existed inadequate ambient noise sound (at least in some frequencies).And one or more frequency range that can be through the ambient noise sound that adopts in the process that changes the difference between the content that microphone 120 and outer microphone 130 detect in analyzing (can through widening the frequency range of use), or adopt sound that acoustic driver 190 exports with acoustically in cavity 112 and

path

117 and 120 detections of interior microphone sound relatively make trial to overcome this scene.

Content that microphone 120 detects in using and acoustic driver 190 mean that with another modification of difference between the content of acoustically output employing acoustic driver 190 is with under the outside situation of the frequency range that also is in normal human subject hearing; In the narrow frequency range of choosing based on the characteristic of acoustic driver 190 and based on the acoustics of path 117 and cavity 112 or frequency with the acoustically output sound, with bring be in and receiver 100 that the neutralization of ear position adjacent is so placed between, can reliably detect difference in the amplitude level of this frequency that interior microphone 120 is detected.Pass through instance; Can adopt time acoustic sound (promptly; The sound of frequency below the normal range (NR) of human hearing; As, common sound below 20Hz), but the synchronous sound detection technology that the reliable detection of this sound possibly need to use those skilled in the art to be familiar with distinguishes the inferior acoustic sound of acoustic driver 190 with acoustically output with other time acoustic sound that possibly exist reliably.

Fig. 4 is the flow chart of the feasible state machine 500 that control circuit 2000 can adopt in any embodiment in individual acoustic equipment 1000a and 1000b.As gone through, the feasible embodiment of individual

acoustic equipment

1000a and 1000b can have single receiver 100 or a pair of receiver 100.Thereby control circuit 2000 can be applied to single receiver 100 or a pair of receiver 100 to its possible variant and the state machine 500 that also will discuss.

In 510 beginnings; Power on the integral body of some forms of any among individual acoustic equipment 1000a or the 1000b, can by the user manually power on or can through this another apparatus remote that communicates with some modes among individual acoustic equipment 1000a or the 1000b power on.After powering on; 520; Control circuit 2000 makes this unique individual's acoustic equipment in normal power mode (wherein making it possible to carry out one or more function fully through providing of electric weight), operate, like two way voice communication, based on feedforward and/or based on the ANR of feedback, the acoustics output of audio frequency, the operation of noisy machinery etc.530; It is on the throne that control circuit 2000 also repeats to check this unique individual's acoustic equipment (perhaps its receiver 100) at least; If on the throne at 535 these unique individual's acoustic equipments (perhaps its receiver 100) at least, then 520 continue wherein normally to provide one or more function normal power mode.In other words, (perhaps its receiver 100) at least is on the throne as long as this unique individual's acoustic equipment, and control circuit 2000 is just through 520,530 and 535 repetitive cycling among Fig. 4.Whether making this mode of checking 530 can mean, on the throne for the integral body and/or the receiver 100 of the individual acoustic equipment of test, adopts one or more approach in the various approach (the various approach of for example, describing among Fig. 3 a-Fig. 3 f) that go through previously.

For 535 make confirm, like what before gone through, make definite mode and can change about whether individual acoustic equipment on the throne, particularly under the situation that has a pair of receiver 100.Again, through instance, if this unique individual's acoustic equipment only has the single receiver in the receiver 100, then control circuit 2000 for the integral body of unique individual's acoustic equipment whether on the throne make confirm can be only whether on the throne based on single receiver 100.Again; Through another instance; If this unique individual's acoustic equipment has a pair of receiver 100; Whether then whether on the throne whether control circuit 2000 can on the throne based in the receiver 100 any for the integral body of this unique individual's acoustic equipment confirming of making, perhaps can on the throne based on two in the receiver 100.Like what before also went through; Can revise to carry out one or more function (as, cause audio frequency with acoustically output from receiver 100 changing its course, interrupting in receiver 100 one ANR (continuing simultaneously provides ANR to another) etc. is provided to another) the process of mode in adopt in the receiver 100 each definite separately (having in the modification of this unique individual's acoustic equipment of a pair of receiver 100) whether on the throne.Thereby, depend on one or more characteristic in these characteristics at least in part in the 535 definite essence of confirming made.As further go through, be desirably in and make and adopt in individual acoustic equipment (perhaps its receiver 100) at least process of confirming (for example, 535) no longer on the throne and postpone (as, in the stabilisation delay of electrical architecture 2500a-2500d middle appointment is set).Again; It is desired that this can think suitably to handle following instance, in this example the user maybe be only receiver 100 spur simply away from their head to reappose it slightly so that comfortable or can be interpreted into receiver 100 other concise and to the point incident no longer on the throne at least under the situation that does not have this delay improperly to be contained in.

If 535, make not on the throne the confirming of the receiver 100 of this unique individual's acoustic equipment (if being not the integral body of this certain acoustic equipment) at least, whether be to check for this then to making more than the situation of first predetermined amount of time 540.If do not surpass this first predetermined amount of time as yet, then control circuit 2000 makes at least a portion of this unique individual's acoustic equipment get into more shallow low power mode 545.Only have 535 at this unique individual's acoustic equipment and to have confirmed under the situation of single receiver 100 not on the throne; Getting into more shallow low power mode 545 can mean and stop to provide one or more function simply; As, stop through the acoustically output audio, stop to provide ANR, stop to provide two way voice communication, stop on the throne etc. to this unique individual's acoustic equipment of noisy mechanical part signaling.Pass through instance; Individual acoustic equipment and cell phone cooperation (can through the wireless coupling between them) with the situation that two way voice communication is provided under; Get into more shallow low power mode and can mean that the communication microphone that stops from individual acoustic equipment provides audio frequency to cell phone, and stop to export communication audio and/or the ANR anti-noise sound that cell phone provides through acoustically.This unique individual's acoustic equipment have a pair of receiver 100 and 535 confirm it is that in these receivers 100 one is on the throne and under another situation not on the throne; Can be included in a place that is simply stopped in the receiver not on the throne 100 in the more shallow low power mode of 545 entering one or more function is provided; Continue to provide same one or more function simultaneously at another place; Can comprise that perhaps in the receiver never on the throne 100 one (for example moves one or more function to another; Move the acoustics output of voice-grade channel, as discussed previously).Can be as an alternative and/or extraly; Have at this unique individual's acoustic equipment under the situation of on the throne and another a pair of receiver 100 not on the throne; Get into more shallow low power mode 545 and can comprise and integrally stop to provide one or more function, as 535 confirm will to occur under two situation not on the throne in the receiver 100.

Locate this of one or more function through two in single receiver 100 places or a pair of receiver 100 and stop, consuming less electrical energy.Yet; Still consume performance to a test of test that makes it possible to realize to be used for to determine whether the above detailed description that single at least receiver 100 is on the throne (as, for an approach in the approach of the detailed description of describing among Fig. 3 a-Fig. 3 f at least one) enough electric energy.Control circuit 2000 continues to maintain this unique individual's acoustic equipment in this more shallow low power mode; Simultaneously if 540 do not confirmed to surpass first predetermined amount of time and as long as confirm to have put back to one in the receiver 100 whole and/or previous not on the throne of this people's acoustic equipment 535 on the throne, just through 530,535,540 and 545 circulations.If confirm to put back to one in the receiver 100 whole and/or previous not on the throne of this people's acoustic equipment on the throne 535; Then control circuit 2000 makes this unique individual's acoustic equipment get into normal power mode again 520; Wherein again, realize to make one or more normal function in the normal function that stops to provide at least as the part in more shallow low power mode.Return and the above instance of cell phone cooperation with individual acoustic equipment that two-way communication is provided; As the user individual acoustic equipment put back to be in at least one ear adjacent position in to make great efforts to reply the result of the call that receives on the cell phone, can occur making more shallow low power mode to get into normal power mode again.In the process that gets into normal power mode again, but individual acoustic equipment can and the cell phone cooperation with in two-way communication and automatic " replying " call of making it possible to immediately under the situation that does not need any manually operational controls on user's operation of cellular telephone or the individual acoustic equipment to carry out between the user of caller and individual acoustic equipment.Will choose answer calls as the user and treat putting back to individual acoustic equipment the user action that puts in place in fact.

Yet if confirm to have surpassed first predetermined amount of time 540, control circuit 2000 makes this unique individual's acoustic equipment get into lower power mode 550.Difference of this lower power mode and more shallow low power mode can be to revise or forbid more multi-functional to consume less electrical energy in the normal function of carrying out of this unique individual's acoustic equipment with some modes.Can be as an alternative and/or extraly; This lower power mode can be with the difference of more shallow low power mode; Though under the situation of this unique individual's acoustic equipment in normal power mode or more shallow low power mode if not continuously (perhaps at least at relatively short interval) carry out this test, only carry out at relatively long interval be used to determine whether the test that single at least receiver 100 is on the throne the whichever modification with the reservation electric energy.Can be as an alternative and/or extraly; This lower power mode can be with difference of more shallow low power mode, is used to determine whether the whichever modification (can through the change of the frequency range used) of the test that single at least receiver 100 is on the throne with what choose in order to the different modification replacements of the test of saving less electrical energy or change.

Under situation normally; Integral body and/or the receiver 100 that is used for confirming unique individual's acoustic equipment whether test on the throne comprises the difference of analyzing continuously between the content that the inside and outside microphone 130 of given frequency range and interior microphone 120 detect; The low electric energy modification of this test can comprise that dwindling frequency range analyzes to simplify, perhaps frequency range change into choose in order to stopping and/or the scope that stops to take into account of ANR the output of the acoustics of the audio frequency that provides with electrical way.The low electric energy modification of this test can comprise from changing to only in the reciprocal time interval of choosing and/or the only sound execution analysis through sampling in the reciprocal time interval of choosing through the outer microphone 130 of sampling continually and the continuous execution analysis of sound of interior microphone 120 detections.Using sef-adapting filter to draw under the situation of transfer function as the part of the integral body that is used for confirming unique individual's acoustic equipment and/or receiver 100 test whether on the throne, can reduce quantity and/or the sampling rate of the tap that sef-adapting filter adopts low electric energy modification as this test.The low electric energy modification of this test can comprise: operation acoustic driver 190 is to need least energy output sound under the frequency that given amplitude produces what choose than other sound; So carry out at reciprocal interval choosing, and along with acoustic driver 190 is exported it and between the content of sound and 120 detections of interior microphone, carried out comparison with acoustically.

Can be as an alternative; 550 enter into lower power mode, in order to determine whether the single at least receiver 100 low electric energy modification in 560 tests carried out on the throne in fact can be with in the 530 whole different tests of modification carried out, can based on the irrelevant mechanism of the detection of sound.Through instance, can and monitor the movable sensor (not shown) to control circuit 2000 couplings in the hope of movement indicia, otherwise this movement indicia can be used as single at least receiver 100 users on the throne it is stayed the indication of some positions.Among feasible the choosing of movable sensor any MEMS equipment in various MEMS (MEMS) equipment; As, can show accelerometer or the gyroscope that moves in order to sensing rotation of the linear acceleration of mobile (with showing that simply terrestrial gravitation is opposite) in order to sensing.

Got into lower power mode 550, carried out the low electric energy modification that is used to determine whether the test that single at least receiver 100 is on the throne 560.If 565; Confirm to put back to one in the receiver 100 whole and/or previous not on the throne of this people's acoustic equipment on the throne; Then control circuit 2000 makes this unique individual's acoustic equipment get into normal power mode again 520; Wherein again, make it possible to make one or more normal function in the normal function that stops to provide at least.Yet,, whether be to make more than the situation of second predetermined amount of time checking for this 570 if make not on the throne yet the confirming of the receiver 100 of this unique individual's acoustic equipment (if being not the integral body of this unique individual's acoustic equipment) at least 565.If surpass this second predetermined amount of time as yet, then control circuit 2000 is carried out the low electric energy modification of testing once more 560 and is waited for the relatively time interval of length 575 before.If surpassed this second predetermined amount of time, then control circuit 2000 cuts off the power supply at 580 these unique individual's acoustic equipments.Thereby; Control circuit 2000 continues to maintain this unique individual's acoustic equipment in this lower power mode; Simultaneously if 570 do not confirmed to surpass second predetermined amount of time and as long as confirm to have put back to one in the receiver 100 whole and/or previous not on the throne of this people's acoustic equipment 565 on the throne, just through 560,565,570 and 575 circulations.

Preferably; Be chosen for very first time section and hold following instance: the user get back to put back to this unique individual's acoustic equipment on the head that is in them before, maybe be at once receiver 100 move away from moment of a weak point of ear with the integral body that removes this unique individual's acoustic equipment at once to someone talk or from their head to move to another position so that rest or lack assignment.This unique individual's acoustic equipment keep continuously in the more shallow low power mode that enters into during first predetermined amount of time test that (perhaps at least at relatively short interval) occur normal modification so that control circuit 2000 can confirm fast the user when the receiver that removes 100 return be in ear nearby and/or the user when return the integral body of this unique individual's acoustic equipment on the head that is in them.Think that expectation makes it possible to carry out thisly confirm fast so that can get into normal power mode and feasible quick-recovery soon fast again through entering into the normal function whatsoever that more shallow low power mode stops, being used for all guaranteeing that the minimum that provides (if any) that the user only perceives these normal functions is interrupted.Yet, also preferably be chosen for very first time section and make through hanging down the bigger reservation that electric energy appears in power mode more deeply since the some place that enters into the more shallow low power mode sufficient time of rising over that may not the user just urgently returns enters into.

Do not implement to be included under 570 the situation for the modification that check, state machine 500 that whether has surpassed second predetermined amount of time at control circuit 2000, preferably be chosen for second predetermined amount of time and hold following instance: the user possibly stop using this unique individual's acoustic equipment long enough time to carry out such as the item of attending a meeting, having a meal, carrying out longer assignment etc.Be intended under the situation that the normal function whatsoever that expection stops to provide as the result who gets into more shallow low power mode and lower power mode will recover, second predetermined amount of time will long enough makes that the user can be from carrying out that this item is returned and being put back into this unique individual's acoustic equipment on the head that is in them simply.Yet, also preferably being chosen for long enough so that remarkable electric energy reservation, still enough short in not make user's wait before these functional rehabilitations can be perceived as the content of excessive time period to be provided in the time interval of 575 waits between the instance 560 of the low electric energy modification of carrying out test.Think that to have some in the time of might the client will understanding or admit this unique individual's acoustic equipment when the user has left the long period, to recover these functions intuitively slow, but will make these functions at any manual control that does not need this unique individual's acoustic equipment of client's manual operation so that recover under the situation of these functional rehabilitations.But also think might the client will understand intuitively or admit leave and the long period will cause this unique individual's acoustic equipment it self outage so that the client need this manually operational controls of manual operation with once more this unique individual's acoustic equipment energising, and also can be so that these functional rehabilitations.

The length that the function of carrying out through given individual acoustic equipment is stipulated at least in part and confirmed in first predetermined amount of time and second predetermined amount of time each through the expection availability of electric weight at least in part.It has been generally acknowledged that preferably; First predetermined amount of time continue can with hour as many some minute; With make great efforts the user might perceive as " weak point " time period usually for the user content make it put back to individual acoustic equipment after not on the throne on the throne after, break the balance between the reservation that gets into normal power mode and electric energy immediately from more shallow low power mode again.Also think usually preferably; Second predetermined amount of time continues at least 2 or 3 hours; With make great efforts the user need might not perceive as usually rationally for the user content of " longer " time period make individual acoustic equipment on the throne after, do not operate manual operational controls so that enter into the balance between the normal power mode again but break with not needing the user in the reservation of electric energy.Think that further preferably, second predetermined amount of time is shorter than 8 hours, second predetermined amount of time is so long to make individual acoustic equipment in drawer or after being on the desk, not cut off the power supply whole night so that the gained balance of breaking does not cause.In certain embodiments, but manual operational controls or other mechanism can be provided so that the user can choose in first predetermined amount of time and second predetermined amount of time one or two length.Can be as an alternative, control circuit 2000 can be observed user's behavior in time, and can independently draw in first predetermined amount of time and second predetermined amount of time one or two length.Can be as an alternative and/or extraly; Though but expectation avoids under the situation that second predetermined amount of time does not pass, making the user need operate manually operational controls; But but can provide manually operational controls so that the user can make individual acoustic equipment get into normal power mode more immediately again from lower power mode, particularly some situations under for user waiting at least that in 575 time intervals of waiting for oversize is under the feasible situation between the test that can think 560.

For selecting in the modification, can be control circuit 2000 at 575 intervals of waiting for along with prolonging from the integral body of unique individual's acoustic equipment from then on and/or 100 last more times in the past on the throne of receiver at some.For selecting in the modification, reaching the scheduled time some points during length this at interval, control circuit 2000 can so that this unique individual's acoustic equipment it self outage.

As the comparative analysis of using sound confirm integral body and/or the receiver 100 of individual acoustic equipment whether on the throne for choosing or except the comparative analysis of using sound confirms that integral body and/or the receiver 100 of individual acoustic equipment is whether on the throne; The detection that can also use the user to move comprises moving of user's head.Especially, the part of individual acoustic equipment can combine one or more movable sensor, as, one or a pair of accelerometer and/or one or a pair of gyroscope.Recent development makes it possible to carry out small-sized and relatively low relatively low cost multiaxis accelerometer and the gyrostatic manufacturing of power consumption based on the technology that adopts in the microelectronics industry among the MEMS (MEMS).Really, the development in this field has also caused the establishment of the relatively low cost MEMS equipment of combination multiaxis accelerometer and gyroscope (being called IMU or Inertial Measurement Unit sometimes).As a result of, merging accelerometer and/or gyroscope are just becoming feasible and economical in comprising through the individual acoustic equipment of supplying power such as the limited power of battery.Also there is the increasing research in various aspects of the mode that the part about human body moves; Especially, people are in the process that moves everywhere and the machinery that moves the mode of the various muscle of voluntary and involuntary use human body in their process of head as the part of normal activity.Big discharge observation has been made in behavior trend and this mobile frequency and the various restrictions of scope about moving in the muscle.

Merge in the individual acoustic equipment when detecting mobile gyroscope and/or accelerometer in employing; And when adopting these observations of moving, can detect to moving of giving of this individual's acoustic equipment and with the user of individual acoustic equipment and cause this instance that moves and cause that through some other influences this instance that moves distinguishes about human body.For example, under the situation that the user advances in the vehicles, can the turnover zone made from the vehicles that moves that the user makes be separated.In this way; Though the vehicles that move will make individual acoustic equipment stand along with the vehicles move towards and/or the change of acceleration; Even but, also can detect individual acoustic equipment more exactly and not be on the user's head placing the seat of the mobile vehicles or whatsoever in the localities to this individual's acoustic equipment.

Fig. 5 provides the block diagram of any one or more movable sensor of interpolation in individual acoustic equipment 1000a and 1000b; Particularly, any adds among three axis accelerometer 180a, three axis accelerometer 180b, three-axis gyroscope 170a and the three-axis gyroscope 170b one or more in individual acoustic equipment 1000a and 1000b.Again; Individual's acoustic equipment (as; Among individual acoustic equipment 1000a and the 1000b one) at least one in the combination control circuit 2000 and be coupled in the movable sensor (that is one or two among one or two among accelerometer 180a and the 180b and/or gyroscope 170a and the 190b) of at least one control circuit 2000 one or more.As will be explained in more detail; This movable sensors of 2000 pairs of control circuits detect mobile make toward complex analysis with confirm individual acoustic equipment (as; The current operation status of one or more receiver 100 any among individual acoustic equipment 1000a or the 1000b), wherein the feasible mode of operation of each is in the receiver 100: 1) be placed on ear nearby and 2) be not placed on ear nearby., also make the further of change that one or more mode of operation in the receiver 100 whether occurred and confirm toward complex analysis through this.Through definite current operation status and/or through determining whether to exist the change of one or more mode of operation in the receiver 100; Confirm current operation status and/or whether have the change of the whole mode of operation of individual acoustic equipment, wherein the feasible mode of operation of individual acoustic equipment is: 1) be placed on around the user's head fully or on the user's head, 2) partly be placed on around the user's head or on the user's head and 3) be not placed on around the user's head or on the user's head at all.

Thereby; Moving of control circuit 2000 analyzing and testing; And in response to the integral body of confirming individual acoustic equipment and/or receiver 100 in particular operational state and/or in response to the specific change of confirming to have occurred mode of operation, take any possible action in the various possible action.As a part of carrying out these analyses and like what will be explained in more detail, also the characteristic that moves of analyzing and testing is separated with the mobile turnover zone with the detection that might cause through other influence that will move the detection that might cause through user's muscle.Making this difference using the detection of moving to realize big accuracy as the process that is used for confirming the basis that individual acoustic equipment is whether on the throne through the restriction that makes it possible to understand human muscle and move and other possible physical restriction.

Fig. 6 a to Fig. 6 f has described and can be placed on the feasible physical configuration 1500a to 1500d of previous introducing and the structure periphery of extra feasible physical configuration 1500e among one or more and/or accelerometer 180a and the 180b among gyroscope 170a and the 170b one or more.As discussed previously; Can have that the different modification of each are feasible among the physical configuration 1500a-1500d of one or two receivers 100, and become the possessive construction among the physical configuration 1500a-1500d and be placed near the user's head or on the user's head so that receiver 100 can be placed on the mode nearby of ear.

It is the modification of a pair of receiver 100 of ear-hang form and the above-head physical configuration 1500a that connects through the headband 102 that is configured to above user's head, wear separately that Fig. 6 a has described to combine.Again, each in the receiver 100 can be " on the ear " perhaps ear-hang of " ear top " form according to they sizes with respect to common human ear's duct.This modification like the physical configuration 1500a that described among Fig. 6 a with difference slightly in Fig. 2 a, how to describe it is, along this optional interpolation to the length very small shell 105 midway of the headband 102 of receiver 100 of coupling.As will discuss, can place accelerometer 180b along headband 102, and not provide under the situation in order to enough spaces of placement accelerometer 180b like this in the structure of headband 102, can place housings 105 so that requisite space to be provided along headband 102.

The rough approximation of the fulcrum N of user's neck had been described how to be placed on the rough approximation on the user's head to receiver 100 and headband 102 when Fig. 6 a was also just wearing the individual acoustic equipment that adopts physical configuration 1500a with respect to the user.Fulcrum N is meant for the rough approximation with respect to position on the human body of the mobile pivot head of human body remainder.Will recognize easily like the technical staff in anthropophysiology field, be important to note that situation about not existing such as with respect to the actual single fulcrum in the human neck of the remainder pivot head of health.In fact, comprise that the entire length of backbone that is connected to the neck neck portion of trunk to head set up by the chain link of vertebra.Be to make the vertebra of each phase adjacency pair can pivot and rotate to the flexibility link of the various tissues of limited degree relative to each other between each vertebra.Through forming several neck neck bones of neck, additional effect of several flexible links makes it possible to carry out rotation and the pivot of head with respect to trunk in the flexible link of these that place between these neck neck bones through phase adjacency pair in the neck.Yet; Though the single fulcrum that how much of the human neck that does not exist head to move with respect to trunk to be passed through limit can be defined as the rough approximation that head that the geometry of neck do not make it possible to carry out moves with respect to the pivot and the rotation of trunk to this fulcrum.Around for any purpose in various engineerings, science and other purpose some effort of people's volume modeling having been advised to be approximately fulcrum the position of " C3 " neck neck bone in neck (that is, the top of the vertebra chain of self-forming backbone rise the 3rd neck neck bone) or this position.So, for the understanding of follow-up discussion is easy, make similar rough approximation in this article, and use this as the basis of in Fig. 6 a, describing and choose the position of fulcrum N.

Fig. 6 a further described the detection of will one or more movable sensor (for example, one or two among one or two among accelerometer 180a and the 180b and/or gyroscope 170a and the 170b) in movable sensor carrying out of moving and move in the coordinate system used towards and axle.Like what described, occur moving backward to be defined as forward along the X axle, be defined as moving right left along the appearance of Y axle, occur upwards moving down to be defined as along the Z axle.As a result of, be defined as left rotation and right rotation around the Z axle and occur, be defined as around the appearance of Y axle, be defined as around the X axle tilting and occur pivoting up and down.Thereby, user's head at the neck place left or right rotation (that is, can be called " left " or " right translation " mobile content, as, the user can see content to the left or to the right) mean the rotation of Z axle (that is axle Nz) around fulcrum N.Thereby, the pivot user's head in the neck place or down (that is, can be called content that " before being tilted to " or " being tilted to the back " moves, as, the user can see upwards or content down) mean the rotation of Y axle (that is a Ny) around fulcrum N.And thereby; The pivot user's head left or right (promptly; Can be called " left bank " or " right bank " mobile content; Can see as some things of the drawing that hangs on the wall or the edge of looking about window to see the content of some outside things with crooked mode like, user) mean the rotation of X axle (that is axle Nx) around fulcrum N.

It should be noted that to spread all over and be right after follow-up in question many discussion; Suppose to aim at their coordinate system (for example, so that their X, Y and Z axle all equally towards on) the structure of mode at individual acoustic equipment in location the gyroscope 170a and whichever among the 190b and the whichever among accelerometer 180a and the 180b that exist.As will be explained in more detail, have the analysis and the comparison of moving that this aligning in the coordinate system that a plurality of movable sensors in this movable sensor exist can be simplified detection greatly.The discussion of back will narrate solution can't suppose the partial memory of same individual acoustic equipment this movable sensor in the analysis and the comparison techniques of the coordinate system of a plurality of movable sensors situation of aiming at.

Fig. 6 a has still further described the rough approximation of the relation between the axle of various other A, B and C and fulcrum N around the user's head that can be placed on the part of the structure of the individual acoustic equipment that adopts physical configuration 1500a.Point A and C are roughly corresponding to the position of each two receiver 100 in ear place of user.Configuration at hypothesis belt 102 means on the top at head and wears (promptly; " headband ") and not around the rear portion of neck (not promptly; " nape band ") situation under, some B roughly corresponding to the mid point of belt 102 along with it extends the position that user's head top of crossing over user's head is above that located between two receivers 100.Though the definite geometry of the neck neck bone of ear and neck, the placement of head is unique to everyone, fulcrum N vertically is registered to some B usually roughly can think roughly that a Nz and the Z axle (that is axle Bz) of some B are the same degree of fully pressing close to.Further, can think that the Y axle (that is, axle Ay and Cy) of an A and some C is same axle and can think roughly that the mode of enough aiming at that public Z axle that this public Y axle and axle Bz and Nz are set up intersects is with respect to axle Nz placement ear.

Adopt some embodiment of the individual acoustic equipment (like, among individual acoustic equipment 1000a or the 1000b one) of physical configuration 1500a can combine in order to detect the gyroscope 170a of the instance that the rotation of user's head moves.As will be familiar with to those skilled in the art, gyroscope detects rotation and moves (that is, moving around the rotation of axle), but not (that is moving along axle) moved in translation.As the result of gyrostatic this inherent characteristic, the problem of disposing gyroscope 170a around the structure of the individual acoustic equipment that adopts physical configuration 1500a is more inessential relatively.Gyrostatic this inherent characteristic means that also gyroscope 170a in a way inherently can be in differentiation between near the moving of detection that the user might cause (will tend to show individual acoustic equipment be in user's head) and the detection that causes through other influence mobile.For example; Wearing the user under the situation of the individual acoustic equipment that adopts physical configuration 1500a and combine gyroscope 170a and (for example driving the mobile vehicles; Automobile, truck, train, steamer or aircraft) situation under; Gyroscope 170a will not detect the common translation of the vehicles inherently and (for example moves; Move forward or backward, move up or down, slow down, quicken, stop, beginning etc.), but will detecting the common rotation of user's head easily, gyroscope 170a moves (for example, the left side at fulcrum N place or right bank, a left side or right rotation and/or last or following the pivot).The appearance that detects these instances that rotation moves through gyroscope 170a is hinting that individual acoustic equipment is on the user's head, is hinting that individual acoustic equipment so places and do not detect this instance that rotation moves through gyroscope 170a on the section at the fixed time.In other words; If this same individual acoustic equipment in conjunction with gyroscope 170a removes and places on the seat or the storage bin of same mobile traffic from user's head; Then no longer detect the rotation of the previous user's head that detects of gyroscope 170a and move, and can not move as this people's acoustic equipment and no longer be in the indication on the user's head detecting this rotation on the section (possible some minutes) at the fixed time.

Adopt some embodiment of the individual acoustic equipment (like, among individual acoustic equipment 1000a or the 1000b one) of physical configuration 1500a can combine in order to detect mobile this to accelerometer 180a and 180b.Among some embodiment in this embodiment, can be placed on (that is) in the receiver 100 to accelerometer 180a, and can place accelerometer 180b (that is, at a B place) along belt 102 at an A place.As the result of this placement, two accelerometers are all in the position from fulcrum N offset of vertical, and accelerometer 180a is also from fulcrum N horizontal-shift (that is the public Y axle offset of, setting up along axle Ay and Cy).Thereby, relatively widely separate each other accelerometer 180a and 180b and place asymmetricly with respect to user's head.Can think that this moves the direction of the acceleration that will bring each detection among accelerometer 180a and the 180b for the rotation of guaranteeing user's head and/or the detected difference of size is preferred, the relatively similarly size and Orientation of the acceleration that will more likely cause each detection among accelerometer 180a and the 180b is moved in the translation that more likely causes through other influence simultaneously.In other words; Adopt accelerometer 180a and 180b so that can carry out the difference acceleration sensing with a pair of form; Wherein exist to think show the similar direction that moves that causes through the influence except the user and size acceleration (promptly; " common mode " acceleration) and think the two the sensing of acceleration (that is " differential mode " acceleration) that shows different sizes that head that the user causes moves and/or direction.In other words, preferably be placed to accelerometer 180a and 180b and when the user moves their head, stand differential mode and move, and other influence bring mobile (as, the integral body of user's body moves in the vehicles) time stands common mode and moves.

Be placed on an A and B place; The two can upwards pivoting downwards of

head move accelerometer

180a and 180b (promptly; At the fulcrum N at neck place around axle Ny rotation) as along the acceleration of their X axle (that is, accelerometer 180a at an A place along the acceleration of axle Ax and accelerometer 180b at a B place acceleration along axle

Bx).Accelerometer

180a and 180b also can be all their corresponding position head this upwards pivot downwards the gained centrifugal force that moves (that is, accelerometer 180a at an A place along the upwards acceleration of axle Az and accelerometer 180b at a B place along the acceleration that makes progress of axle Bz).Yet though

accelerometer

180a and 180b all can detect the acceleration on the same direction, they cause each these acceleration of accelerometer detection these accelerometers to have different sizes from the different offset of vertical of fulcrum N.Compare the result of accelerometer 180b as accelerometer 180a at less offset of vertical; Accelerometer 180b detect along the acceleration of X axle and Z axle greater than situation for accelerometer 180a, make the position of the accelerometer 180a of invocation point A place press close to around it to occur upwards pivoting a mobile Ny downwards.

In a similar manner; Be placed on an A and B place;

Accelerometer

180a and 180b the two can detect be tilted to the right left mobile (promptly; Rotation around axle Nx) as along the acceleration of their Y axles (that is, accelerometer 180a at an A place along the acceleration of axle Ay and accelerometer 180b at a B place acceleration along axle By

).Accelerometer

180a and 180b also can be all at this gained centrifugal force that is tilted to the right mobile left of their corresponding position head as upwards acceleration along their Z axles.Again, these acceleration that the accelerometer detected magnitude is different, the situation that the acceleration along Y axle and Z axle that wherein detects at accelerometer 180b detects greater than accelerometer 180a.

Be placed on that an A and B place cause left moving the acceleration that detects in the situation of (for example, around axle Nz rotation) to right rotation even big-difference more.Therefore from fulcrum N horizontal-shift and from the some A of axle Nz horizontal-shift; Accelerometer 180a can detect and thisly move as along the acceleration of axle Ax to right rotation left, and the gained centrifugal force conduct that accelerometer 180a also can test point A place is along the acceleration left of axle Ay.Yet at the some B place of the public Z axle of setting up along axle Bz and Nz, accelerometer 180b moves the mode that causes acceleration to right rotation left and detects (if any) on a small quantity with this.Thereby accelerometer 180a detects to detect under the situation less than (perhaps almost detect less than) at accelerometer 180b and thisly moves the acceleration that causes to right rotation left.

The acceleration that these accelerometers that these differences of the acceleration magnitude that the result that the head that carries out as the user than

accelerometer

180a and 180b moves detects, other influence cause detect in size may be similar relatively.Return the instance of user's previous discussion in the mobile traffic; The moving of the vehicles (for example, move forward or backward, move up or down, slow down, quicken, stop, beginning etc.) may be translation move so that two accelerometers in these accelerometers experience simultaneously occur, on the same direction and onesize acceleration.In other words, under the situation of the acceleration that the result that these accelerometers of comparison move as the vehicles detects, will find that these acceleration are common mode acceleration.Again, this common mode acceleration moves the acceleration that causes different (as explained in detail above) with head, will find that it is the differential mode acceleration that this head moves the acceleration that causes.

Adopt other embodiment of the individual acoustic equipment of physical configuration 1500a can also combine a pair of accelerometer 180a and 180b mobile to detect; But the placement of these accelerometers can be different so that be placed on each accelerometer in these accelerometers in each in the receiver 100 (promptly; At an A and C place one separately), but not in them one is placed along belt 102.Can think that these accelerometers this is arranged in some and is difficult to or do not expect under belt 102 is placed the situation of an accelerometer in these accelerometers, be necessary.Yet; Because two accelerometers will detect the acceleration of very similar size and Orientation; So exist upwards downwards pivoting of excuse portion move (that is, around axle Ny rotation) become be difficult to detect so be placed to the shortcoming with the public Y axle of Cy establishment to two accelerometers along axle Ay.In other words, the left-right symmetric due to the placement of an A and accelerometer 180a of C place and 180b will make as the common mode acceleration but not this detection that upwards pivots and move downwards of differential mode acceleration detection respectively.Will to the common mode acceleration than complex analyses with which attempt to confirm show more that upwards pivoting of head moved downwards and which more show through with the moving that other irrelevant influence causes of moving of head.

Can be as an alternative; Be placed among accelerometer 180a and the 180b each under the situation in each in the receiver 100 being necessary and/or expecting, can recapture this detected differential mode acceleration that upwards pivots and cause in the receiver 100 in their corresponding receivers downwards through be placed on these accelerometers asymmetricly.For example, can be in receiver 100 one the top of housing 110 place accelerometer 180a, and can in receiver 100, place accelerometer 180b in the bottom of another housing 110.

Fig. 6 b has described another modification of above-head physical configuration 1500a, describe among itself and Fig. 6 a similar, but put A and C in receiver 100 upward displacements in belt 102 terminal so that be placed among one or more and/or accelerometer 180a and the 180b gyroscope 170a that possibly exist and the 170b one or more in end of belt 102 one or two terminal in but not be placed in the receiver 100 one or two.In others, the modification of the physical configuration 1500a that describes among Fig. 6 a and Fig. 6 b is similar basically and likewise work basically in the context of detection that moves at least.To allow receiver 100 being coupled to the end of belt 102 under the situation of receiver 100, can think this placement of one or more movable sensor in this movable sensor of expecting to be described among Fig. 6 b with respect to the end " rotations " of belt 102 or this mode of rotation.Can think to assist to guarantee receiver be directed against user's head part comfortable cooperation and/or to the unique aspect that holds the task that can adopt given individual acoustic equipment (as; The acoustic driver that DJ wants to turn to this receiver to a receiver in the receiver once in a while towards away from the duct of an ear towards in, thereby make this ear " free time " with the sound in the room of listening to the positive playing back music of DJ) expectation allows receiver 100 to move with respect to this rotation of belt 102.

In belt 102 terminal but not the movable sensor of placing in the rotation modification of receiver 100 make it possible to the coordinate system that does not influence these movable sensors relative to each other towards situation under carry out the rotation of these receivers 100.In other words; In the rotation modification of receiver 100, place under the situation of movable sensor; Will owing to will be when each one or two the rotation feature that uses in the receiver 100 the coordinate system of one or more transducer in this transducer rotate to different towards, so no longer can suppose the coordinate system aligning of this movable sensor.Again, like what will be explained in more detail, the coordinate system that can depend on movable sensor in following the individual acoustic equipment of situation that adopts a plurality of movable sensors is aimed at, and has simplified the comparison and the analysis of moving that detect.

But Fig. 6 c described with the substantially similar receiver 100 of physical configuration 1500a in one combine microphone boom 142 to support to communicate by letter modification microphone 140, above-head physical configuration 1500b extraly.Make with dashed lines specifically describe physical configuration 1500b and have one or two the feasibility in the receiver 100.In addition again; In some modification of physical configuration 1500b; Microphone boom 142 can be in order to sending back the hollow pipeline of sound of voice to communication microphone 140, and this communication microphone 140 will be placed in the receiver of attached microphone boom 142 in one the housing 110 subsequently.Its difference slightly how as describing among this modification of the physical configuration 1500b that described among Fig. 6 c and Fig. 2 b is that the end of the microphone boom nearby 142 of user's mouth is the optional interpolation of small shell 145 very.As will discuss; Accelerometer 180b can be placed on the end of microphone boom 142; And do not provide under the situation in order to enough spaces of placement accelerometer 180b like this in the structure of microphone boom 142, this end that can be placed on microphone boom 142 to housing 145 is to provide requisite space.

Adopt some embodiment of the individual acoustic equipment (like, among individual acoustic equipment 1000a or the 1000b one) of physical configuration 1500b can combine in order to detect the gyroscope 170a of the instance that the rotation of user's head moves.Again, it is more inessential relatively to dispose the problem of gyroscope 170a around the structure of the individual acoustic equipment that adopts physical configuration 1500b.Yet owing to available space in the housing 110 that might have receiver 100, preferably being placed on gyroscope 170a wherein can be at an A place.

Adopt some embodiment of the individual acoustic equipment (like, among individual acoustic equipment 1000a or the 1000b one) of physical configuration 1500b can combine in order to detect mobile this to accelerometer 180a and 180b.Among some embodiment in this embodiment, can be placed on (that is) in the receiver 100 to accelerometer 180a, can be placed on accelerometer 180b the end (that is, at a D place) of the microphone boom of the mouth of being close to the users most at an A place.Be placed under the situation at D place at accelerometer 180b, accelerometer 180b places to such an extent that some and can further squint from an A along other axle according to the definite shape of microphone boom 142 and length forward at least to an A.Result as this placement; Two accelerometers all from the position of fulcrum N offset of vertical (for describing to return a) with reference to Fig. 6 with respect to the fulcrum N of an A; Though and two accelerometers they on the varying level direction, squint, all from fulcrum N horizontal-shift.Thereby; Mode with the content of the situation in the modification that is different from the physical configuration 1500a that describes among Fig. 6 a; In the modification of the physical configuration 1500b that in Fig. 6 c, describes, relatively widely separate each other accelerometer 180a and 180b and place asymmetricly with respect to user's head.Again; Can think that this moves direction and/or the big or small difference that will bring the acceleration of each detection among accelerometer 180a and the 180b to the rotation of guaranteeing user's head is preferred; Simultaneously through other influence (as, the vehicles move) translation that may cause moves acceleration, the similar relatively size and Orientation that will cause each detection among accelerometer 180a and the 180b.

Be placed on an A place, accelerometer 180a can head upwards pivots downwards and moves at least as the acceleration of some A place along axle Ax, and also can detect the gained centrifugal force along axle Az.Be placed on a D place, accelerometer 180b at least in part since some D with respect to the placing more forward an of A, move and can detect this upwards the pivot downwards, as two the acceleration of component in axle Dz and the Dx.Accelerometer 180b also can detect the gained centrifugal force along same two axles.Thereby, through an A and D place accelerometer placed 180a and 180b respectively, there is the possible difference of size of difference and this acceleration of the direction of this acceleration that moves the detection that causes of upwards pivoting downwards.

Be placed on an A and D place; Can head among two accelerometer 180a and the 180b be tilted to the right left is mobile; As along the acceleration of their Y axles (that is, accelerometer 180a at an A place along the acceleration of axle Ay and accelerometer 180b at a D place acceleration along axle

Dy).Accelerometer

180a and 180b also can be all at this gained centrifugal force that is tilted to the right mobile left of their corresponding position head, respectively as upwards acceleration along axle Az and axle Dz.Through these different location of these accelerometers, will be different along the acceleration of their the Y axle and the detection of Z axle.

Be placed on an A place, what accelerometer 180a can head moves to right rotation left, at least as the acceleration of some A place along axle Ax, and also can detect the gained centrifugal force along axle Ay.Be placed on a D place, accelerometer 180b can detect and thisly move to right rotation left, at least as the acceleration along axle Dy, and also can detect the gained centrifugal force along axle Dx.Thereby, there is this possible difference of size of difference and this acceleration of direction that moves the acceleration of the detection that causes left to right rotation.

Fig. 6 d described with Fig. 6 c in the modification of the physical configuration 1500b that describes substantially similar, but with being intended on the level height of about neck and the base portion connection of head (promptly around the different belts 103 at neck rear portion; " nape band ") replacement is intended to be positioned at the physical configuration 1500e of the belt 102 (that is headband) on the user's head.Again, in some modification of physical configuration 1500e, microphone boom 142 can be the hollow pipeline that sends back sound of voice in order to the communication microphone 140 in one the housing 110 in the receiver 100 that will be placed on attached microphone boom 142 subsequently.As will discuss; Can place accelerometer 180b at the terminal of microphone boom 142 or along belt 103; Do not provide under the situation in order to enough spaces of placement accelerometer 180b like this in the structure of belt 103 or microphone boom 142; Can be placed on housing 145 this end of microphone boom 142 or can place housing 105, so that requisite space to be provided along belt 103.

The individual acoustic equipment of employing physical configuration 1500e (as; Among individual acoustic equipment 1000a or the 1000b one) some embodiment can combine in order to detect the gyroscope 170a of the instance that the rotation of user's head moves; Again, it is more inessential relatively to dispose the problem of gyroscope 170a around the structure of the individual acoustic equipment that adopts physical configuration 1500b.Yet owing to available space in the housing 110 that might have receiver 100, preferably being placed on gyroscope 170a wherein can be at an A place.

Adopt some embodiment of the individual acoustic equipment (like, among individual acoustic equipment 1000a or the 1000b one) of physical configuration 1500e can combine in order to detect mobile this to accelerometer 180a and 180b.Among some embodiment in this embodiment, can be placed on (that is) in the receiver 100 to accelerometer 180a, and can place accelerometer 180b (that is, at an E place) midway along belt 103 at an A place.Through an accelerometer placed 180b of E place, accelerometer 180b places to such an extent that some and can further squint from an A along other axle according to the definite shape of belt 103 and length forward at least to an A.Result as this placement; Two accelerometers are in position from fulcrum N offset of vertical (for describing to return with reference to Fig. 6 a) with respect to the fulcrum N of an A; Though they squint two accelerometers on the varying level direction, also from fulcrum N horizontal-shift.Thereby; Relatively widely separate each other accelerometer 180a and 180b and place asymmetricly with respect to user's head; Can think that this moves the direction of the acceleration that will bring each detection among accelerometer 180a and the 180b to the rotation of guaranteeing user's head and/or the difference of size is preferred, the relatively similarly size and Orientation of the acceleration that will cause each detection among accelerometer 180a and the 180b is moved in the translation that may cause through other influence simultaneously.

Be placed on an A place, accelerometer 180a can upwards pivoting downwards of head move, and at least as the acceleration of some A place along axle Ax, and also can detect the gained centrifugal force along axle Az.Be placed on an E place, accelerometer 180b at least in part since some E with respect to the placing more backward an of A, move and can detect this upwards the pivot downwards, as component along the two acceleration of axle Ez and axle Ex.Accelerometer 180b also can detect the gained centrifugal force along same two axles.Thereby, be placed on respectively under the situation at an A and E place at

accelerometer

180a and 180b, there is this upwards difference of the size and Orientation of the acceleration of the mobile detection that causes of pivot downwards.

Be placed on an A and E place;

Accelerometer

180a and 180b the two can head be tilted to the right left mobile; As along the acceleration of their Y axles (that is, accelerometer 180a at an A place along the acceleration of axle Ay and accelerometer 180b at an E place acceleration along axle

Ey).Accelerometer

180a and 180b also can be all at this gained centrifugal force that is tilted to the right mobile left of their corresponding position head, respectively as upwards acceleration along axle Ez and axle Ez.Through these diverse locations of these accelerometers, will be different along the acceleration of their the Y axle and the detection of Z axle.

Be placed on an A place, what accelerometer 180a can head moves to right rotation left, at least as the acceleration of some A place along axle Ax, and also can detect the gained centrifugal force along axle Ay.Be placed on an E place, accelerometer 180b can detect and thisly move to right rotation left, at least as the acceleration along axle Ey, and also can detect the gained centrifugal force along axle Ex.Thereby, there is this difference of size and Orientation that moves the acceleration of the detection that causes left to right rotation.

It is the modification of " in the ear " physical configuration 1500c of a pair of receiver 100 of in-ear phone form separately that Fig. 6 e has described to combine.Make with dashed lines specifically describe physical configuration 1500c and have one or two the feasibility in the receiver 100.

Adopt some embodiment of the individual acoustic equipment (like, among individual acoustic equipment 1000a or the 1000b one) of physical configuration 1500c can combine in order to detect the gyroscope 170a of the instance that the rotation of user's head moves.Again, it is more inessential relatively to dispose the problem of gyroscope 170a around the structure of the individual acoustic equipment that adopts physical configuration 1500c.Yet not have coupling can be under the situation of similar structures or belt of content of a pair of receiver 100 given, is placed on gyroscope 170a in the receiver 100 in one the housing 110 possibly.

Adopt some embodiment of the individual acoustic equipment (like, among individual acoustic equipment 1000a or the 1000b one) of physical configuration 1500c can combine in order to detect mobile this to accelerometer 180a and 180b.In this embodiment, there is the expection property of some distances to make preferably between being placed to accelerometer 180a and 180b and is deployed among accelerometer 180a and the 180b each in each in a pair of receiver 100.Thereby, to use under this situation accelerometer 180a and 180b (but not gyroscope 170a), this modification of physical configuration 1500c preferably combines a pair of receiver 100, but not is single in the receiver 100.Through accelerometer 180a and the 180b that among a pair of receiver 100, distributes in this way, the gained ability that each among accelerometer 180a and the 180b moves the acceleration that causes in order to the head that detects above-mentioned different possible form become with respectively accelerometer 180a and 180b be placed in the above-mentioned modification of physical configuration 1500a at an A and C place (with reference to Fig. 6 a and Fig. 6 b) more the same.Unfortunately, this also can be like bringing of discussing of the placement of previous those modification mid point A and these two accelerometers of C place with reference to physical configuration 1500a in the head same difficulty in moving that upwards pivots downwards.

Fig. 6 f has described one in the receiver 100 modification that is extra combination microphone boom 142 with physical configuration 1500d in the ear of monaural head-telephone (being also referred to as " ear's receiver " sometimes) form of support communication microphone 140.Again; Physical configuration 1500d's is feasible for selecting modification; Wherein send sound nearby to communication microphone 140, perhaps wherein be deployed in communication microphone 140 on the housing 110 towards the mode of user's mouth with the communication microphone from user's mouth through the pipeline (not shown).In addition again, the receiver of describing 100 of physical configuration 1500d that has a communication microphone 140 can maybe can't be attended by another receiver 100 (like what shown with this another receiver 100 of dotted lines).This modification like the physical configuration 1500d that described among Fig. 6 f is the very optional interpolation of small shell 145 of the end of user's mouth microphone boom 142 nearby with difference slightly in Fig. 2 d, how to describe it.Be not the above-mentioned modification that is different from physical configuration 1500b (with reference to Fig. 6 c), in the physical configuration 1500d of Fig. 6 f, can be placed on accelerometer 180b this end of microphone boom 142.Do not provide under the situation in order to enough spaces of placement accelerometer 180b like this in the structure of microphone boom 142, this end that can be placed on microphone boom 142 to housing 145 is to provide requisite space.

Adopt some embodiment of the individual acoustic equipment (like, among individual acoustic equipment 1000a or the 1000b one) of physical configuration 1500d can combine in order to detect the gyroscope 170a of the instance that the rotation of user's head moves.Again, it is more inessential relatively to dispose the problem of gyroscope 170a around the structure of the individual acoustic equipment that adopts physical configuration 1500d.Yet not have coupling can be under the situation of similar structures or belt of content of a pair of receiver 100 given, is placed on gyroscope 170a in the receiver 100 in one the housing 110 possibly.

Adopt some embodiment of the individual acoustic equipment (like, among individual acoustic equipment 1000a or the 1000b one) of physical configuration 1500d can combine in order to detect mobile this to accelerometer 180a and 180b.Single in microphone boom 142 (perhaps whatsoever other structure can be supported the microphone 140 of communicating by letter) makes receiver 100 can be between them combine under the enough situation of distance accelerometer 180a and 180b the two so that under the situation of the difference acceleration sensing that can before describe, then think preferably to make accelerometer 180a and 180b the two is attached in single in the receiver 100.The receiver 100 of given this form at least some elongation might be to place accelerometer 180a to such an extent that press close to ear and place accelerometer 180b to such an extent that press close to mouth to take ear and to place communication microphone 140 to such an extent that relatively press close under the situation of mouth.At accelerometer 180a and 180b in this way under the situation of distributing among the part of single receiver 100, the gained ability that each among accelerometer 180a and the 180b moves the acceleration that causes in order to the head that detects above-mentioned different possible form become with respectively accelerometer 180a and 180b be placed in the above-mentioned modification of physical configuration 1500b at an A and D place (with reference to Fig. 6 c) more the same.

Fig. 7 a has described in individual acoustic equipment 1000a that combines gyroscope 170a at least and 1000b the feasible electrical architecture 2500g of spendable control circuit 2000 in any.When adopting electrical architecture 2500g; Control circuit 2000 incorporating interconnectings, one or more in the degree analyzing device 760 together with controller 950, velocity analyzer 770, acceleration analysis device 780 and the frequency analyzer 790, to analyze the characteristic that rotation that gyroscope 170a detects is moved.It is individual that the signal that the gyroscope 170a rotation that it detects expression is moved outputs to the whichever that exists in degree analyzing device 760, velocity analyzer 770, acceleration analysis device 780 and the frequency analyzer 790.

Degree analyzing device 760 is analyzed around the amount of the rotation of one or more gyroscope 170a detection.Can be configured to degree analyzing device 760 to be limited as the detection rotation amount that in the predetermined sampling period, occurs to this analysis, the length of predetermined sampling period through the sampling setting that provides to degree analyzing device 760.This analysis comprises that the rotation amount with detection compares with one or more rotation degree value that through the degree setting that also provides to degree analyzing device 760.Can be that minimum (is for example rotated degree value among the rotation degree value; Center on the minimum of one or more mobile degree); Before this indication that rotation is moved will be admitted effective indication of moving as rotation at all, or this indication that rotation is moved will by admit as move through the head on user's the part cause before, this minimum rotation degree value must be indicated as in the signal that gyroscope 170a exports and detect (can in the given sampling period).

Can think that the mobile degree of expectation minimum that any mobile indication is required rotation is received to effectively at all, with the mobile indication of the mistake that filters out gyroscope 170a signaling.The rotation of minimum that any mobile indication is required is moved degree and is received to by the user and makes, and can be move an approach that is moved apart with the rotation that causes through other influence in order to move user's head the rotation that causes.Return with reference to placing the storage bin of mobile traffic or the instance that the individual acoustic equipment on the seat had before appeared; Though moving that the vehicles cause tended to move (like what before gone through) along the translation of axle really; But the vehicles obviously are not always in straight path, to advance; And obviously need to make turning to change their direct of travel around one or more, this will be detected by the gyroscope 170a that places the individual acoustic equipment on storage bin or the seat is that rotation is moved.Yet; Most of vehicles in the moving of relatively large radian, make turnings (for example, radius of turn be more than 30 feet common automobile, or tend to make radius usually under the situation of relatively large turning towards the steamer and the aircraft of a side or opposite side inclination).Thereby the turning that the vehicles are made will make the rotation of moving the detection that on the time span that more strengthens, occurs in the common rotation of comparing user's head move usually.Therefore; Minimum rotation degree value can be set so that the common turning that the vehicles are made will can not bring enough rotations of satisfying minimum rotation degree value in the given sampling period, and the common rotation of user's head is moved and might be surpassed this minimum rotation degree value.

Can be as an alternative and/or extraly, can maximum rotation degree value among the rotation degree value, this maximum rotation degree value is chosen as in order to attempting and moves with the rotation that causes through other influence and be moved apart move the rotation that causes through head.Can in the people can move their understanding degree, the restriction of known physiology of head with respect to their trunk, maximum rotation degree value be set.More specifically (and once more a) with reference to Fig. 6; Research to this physiology limits finds that the structure of neck is restricted to about 90 degree to the scope that head moves (that is, center on the rotation of axle Ny) with respect to upwards pivoting of trunk downwards usually; Moving (promptly to right rotation left; Rotation around axle Nz) scope is restricted to about 120 degree, and the scope of mobile being tilted to the right left (that is, centering on the rotation of axle Nx) is restricted to about 90 degree.

Thereby; Shift moving degree in the signal indicating sampling period inward turning that receives from gyroscope 170a and rotate less than minimum under degree value (if providing) or the situation greater than maximum rotation degree value (if providing), moving that degree analyzing device 760 can show in the signal of controller 950 signalings from gyroscope 170a can not show that the head that the user makes moves.Can be as an alternative; Whether be configured to controller 950 make a feasible weighted value in a plurality of feasible weighted values to be in owing to individual acoustic equipment among the embodiment of the concrete indication on the user's head, degree analyzing device 760 can make less weighted value move owing to what show in the signal from gyroscope 170a by signaling controller 950.

Velocity analyzer 770 is analyzed the detected speed that moves around one or more rotation of gyroscope 170a.This analysis comprises that the rotary speed with detection compares with one or more rotary speed value that through the speed setting that provides to velocity analyzer 770.Can minimum rotary speed value among the rotary speed value; Before this indication that rotation is moved will be admitted effective indication of moving as rotation at all, or this indication that rotation is moved will by admit as move through the head on user's the part cause before, this minimum rotary speed value must be indicated as in the signal that gyroscope 170a exports and detect.Perhaps be not provided with among the embodiment of the minimum rotation degree that need in the given sampling period, occur in minimum rotation degree value at degree analyzing device 760 non-existent embodiment, this minimum rotary speed value can be the scheme of selecting of replacing to the minimum rotation degree value of previous description.

Can be as an alternative and/or extraly, can the maximum rotative speed value among the rotary speed value, this maximum rotative speed value is chosen as in order to attempting and moves with the rotation that causes through other influence and be moved apart move the rotation that causes through head.Can in the people can move their understanding speed, the restriction of known physiology of head with respect to their trunk, the maximum rotative speed value be set.Pass through instance; The user can make individual acoustic equipment dangle at the end of cotton rope; And wind or some other influences can make that individual acoustic equipment begins to rotate at the end of this cotton rope, and maybe be by moving their fast rotary speed of head around any axle in the above-mentioned axle than people.Thereby; Under the situation of signal indicating little or bigger than maximum rotative speed value (if providing) the rotation translational speed than minimum rotary speed value (if providing) that receives from gyroscope 170a, moving that velocity analyzer 770 can show in this signal of controller 950 signalings can not show that the head that the user makes moves.

The acceleration that the rotation around one or more that acceleration analysis device 780 analysis gyroscope 170a detect is moved.This analysis comprise the rotation of acceleration that detects and/or detection moved in the change of acceleration compare with one or more rotary acceleration value that through the acceleration setting that provides to acceleration analysis device 780.Can be that minimum rotary acceleration value or minimum acceleration change rate value among the rotary acceleration value; Before the indication that rotation is moved will be admitted effective indication of moving as rotation at all, or this indication that rotation is moved will by admit as move through the head on user's the part cause before, this minimum rotary acceleration value or minimum acceleration change rate value and must be indicated as in the signal of gyroscope 170a output and detect.

Can be as an alternative and/or extraly; Can be that maximum rotary acceleration value or peak acceleration change rate value among the rotary acceleration value, this maximum rotary acceleration value or peak acceleration change rate value and are chosen as in order to attempting and move with the rotation that causes through other influence and be moved apart move the rotation that causes through head.Can change at acceleration or the acceleration that the people can move their head with respect to their trunk in the understanding of physiology restriction speed, known these maximums are set.Turn back to the example that the individual acoustic equipment that before appeared dangles at the cotton rope end, might can move the degree of giving this individual's acoustic equipment through their head of self greater than the people relative to rapider change what individual acoustic equipment twisted and/or when dangling, caused the acceleration that can detect when colliding stationary object and/or acceleration in wind.Thereby; The signal indicating that receives from gyroscope 170a than minimum value (if providing) little or than maximum (if providing) big rotary acceleration or acceleration changes under the situation of speed, moving that acceleration analysis device 780 can show in this signal of controller 950 signalings can not show that the head that the user makes moves.

Frequency analyzer 790 is analyzed the mobile frequency of any circulation rotation around one or more that gyroscope 170a detects.Increasing research shows that the great majority that human body is made repeat muscle and move with the roughly appearance of the frequency in 1Hz to 2Hz scope.Instance is the example of the heartbeat that (perhaps in other words, frequency is between 1Hz to 2Hz) occurs in per minute 60 skips to 120 scopes of jumping usually.Another instance is also with speed (perhaps in other words, frequency is between 1Hz to the 2Hz) walking of carrying out of 1 to 2 stride of per second or the example of running.Even also being not inclined to surpass, the fastest runner takes speed more than 2 strides of per second, but, usually through taking longer stride to obtain their big speed.The most usually occur with the frequency in this same scope along with obviously nodding by beat or knocking foot, another instance is someone example that the beat of the music of just listening to through them moves in time.Sometimes; The people cleans that the repetition arm that some things make moves along with having run into, the speed of heartbeat very high physical demands or very high emotional disturbance be issued to that per minute 150 is jumped or more many, or nod fast or the head that rocks them when agreeing or disagreeing with to show very emphatically the people, appearance is until the frequency that repeats to move of 3Hz or 4Hz.In very rare situation, observe the frequency that the repetition muscle up to 6Hz or 7Hz moves.

Therefore; Can be for frequency analyzer 790 provide the frequency configuration of specifying maximum frequency values at least, the rotation of the repetitive nature that can relatively detect to this maximum frequency values is moved to confirm that whether this mobile frequency is Tai Gao and can't show that user's muscle moves the frequency of (possibly be 4Hz).Be configured to gyroscope 170a to detect given that rotation is moved but not under the situation that translation is moved; The user nods or the head that rocks them will be easy to be detected as rotation and moves; And will be determined frequency below maximum frequency values, make frequency analyzer 790 to repeat to rotate mobile indication for what detect that the user causes to controller 950 signalings.Further; Though the walking and run and tend to along with head and trunk move up and down and give along vertical axes (promptly according to each stride usually; Axle Nz) repeated translation moves; Show but study, also tend to synchronous with each stride, slightly upwards pivot mobile (that is, centering on the rotation of axle Ny) head downwards.This occurs along with following situation usually: the people walking or when running fixing them watch attentively forward straight; Very identical vertical translation to compensate each stride is moved, so that keep their watching attentively to pay close attention to given object or other focus in their the place ahead.Thereby; Gyroscope 170a possibly be able to detect repeats upwards to pivot downwards through during the walking this and moves the repeat pattern that rotation of causing is moved, and frequency analyzer 790 can be to controller 950 signalings this frequency of moving of upwards pivoting downwards be to show that the frequency that head that the user causes moves occurs.

Fig. 7 b described combine at least this to the individual acoustic equipment 1000a of

accelerometer

180a and 180b and among the 1000b any in the feasible electrical architecture 2500h of spendable control circuit 2000.When adopting electrical architecture 2500h; Control circuit 2000 incorporating interconnectings, in the differential mode detector 830 together with controller 950, common mode detector 840, acceleration analysis device 860, frequency analyzer 870, acceleration analysis device 880 and the frequency analyzer 890 one or more; To analyze this characteristic that moves, as acceleration along one or more to

accelerometer

180a and 180b detection.It is individual that the signal of the two each self-monitoring acceleration of expression of

accelerometer

180a and 180b outputs to the whichever that exists in differential mode detector 830 and the common mode detector 840.

Differential mode detector 830 relatively is configured to acceleration that its sensitive various repacking are surveyed along

accelerometer

180a and 180b, and it is individual to output to the whichever that exists in acceleration analysis device 880 and the frequency analyzer 890 to the signal of the difference of the acceleration that shows these detections.These same acceleration that common mode detector 840 is relatively surveyed along these same repacking, and individual showing that the signal of discovery to the common acceleration of the acceleration of accelerometer 180a and the two detection of 180b outputs to the whichever that exists in acceleration analysis device 860 and the frequency analyzer 870.In other words, differential mode detector 830 is used for distinguishing differential mode acceleration and common mode acceleration with common mode detector 840.In process so, differential mode detector 830 and common mode detector 840 are used for distinguishing differential mode that the position of

accelerometer

180a and 180b experiences and move with common mode and move.

Acceleration analysis device 860 is analyzed accelerometer 180a and the two acceleration along one or more detected, that in the signal output of common mode detector 840, show of 180b.This analysis comprises that the change with common mode acceleration and/or common mode acceleration compares with one or more accekeration that through the acceleration setting that provides to acceleration analysis device 860.As discussed previously, the common mode acceleration might be the translational acceleration that shows the influence of the head that causes except the user moving.Can not cause that though suppose translational acceleration what need reaffirm is through user's mobile (particularly head moves), accelerometer 180a and 180b can stand to be moved with another by user's head influences the acceleration that the two causes.Turn back to the instance of individual acoustic equipment in mobile traffic; If individual acoustic equipment is in the mobile traffic on the user's head, then accelerometer 180a and 180b will detect the vehicles move the common mode acceleration that causes and user's head move the differential mode acceleration that causes the two.Though controller 950 will confirm that individual acoustic equipment is in the indication of adopting the indication of differential mode acceleration in the process on the user's head and ignoring the common mode acceleration, can exist (at some At All Other Times) for the indication that must only remove and place the common mode acceleration that detects under the situation in somewhere in the mobile traffic from user's head at individual acoustic equipment usually.This indication of common mode acceleration can be the acceleration consistent with the individual acoustic equipment that drops and/or can be fully high and occur on the fully short time period with dropping after clash into floor or other rigid surface the consistent acceleration change speed of individual acoustic equipment.Can not be still on user's head because individual acoustic equipment clashes into after it falls or is falling under the situation of rigid surface very, so controller 950 can not be in the basis on the user's head to any indication in this indication as definite individual acoustic equipment immediately.

Frequency analyzer 870 is analyzed accelerometer 180a and 180b, and the two is detected, in the signal output of common mode detector 840, show, to detect be the frequency along repetition acceleration one or more appearance, any.This analysis comprises that the frequency with this common mode acceleration compares with one or more frequency values that is provided with through the frequency configuration that provides to frequency analyzer 870.Again, as discussed previously, the common mode acceleration might be the translational acceleration that shows the influence of the head that causes except the user moving.Can not cause that in fact some common mode acceleration can be that individual acoustic equipment is in the indication on the user's head though suppose translational acceleration through user's move (particularly head moves).Through instance and as discussed previously, the repetition muscle of many forms moves and tends to the roughly appearance of the frequency in 1Hz to 2Hz scope.Thereby, if can choose one or more frequency values so that the repeated translation acceleration detection in the frequency of this scope, to occur, can think that then the detection of repeated translation acceleration is that individual acoustic equipment is in the indication on the user's head.In certain embodiments; Can combine frequency analyzer 870 to adopt acceleration analysis device 860; With through adopt acceleration analysis device 860 confirm the direction of gravity (should be the downward continuous acceleration of 1G) and subsequently only with along the repetition acceleration of the axle appearance of aiming at the direction of gravity (as; Will along with they the walking or run and repeat to move up and down with the people's who moves up and down head and the consistent 1Hz to 2Hz of trunk) carry out this frequency analysis, only be restricted to vertical repetition acceleration to this frequency analysis of repeated translation acceleration.

Acceleration analysis device 880 is analyzed the differential mode acceleration along one or more that shows in the signal output of differential mode detector 830.This analysis comprises that the change with differential mode acceleration and/or differential mode acceleration compares with one or more accekeration that through the acceleration setting that provides to acceleration analysis device 880.As discussed previously, along the position of backbone roughly under the situation near fulcrum N, the differential mode acceleration that

accelerometer

180a and 180b detect might be the rotary acceleration that shows that head that the user causes moves at the geometry of given neck and head.Thereby; Might for previous for the acceleration analysis device 780 previous more the same purposes of discussing and with more the same mode, through 880 these differential mode acceleration of execution and/or the change of differential mode acceleration and the comparisons of one or more accekeration of acceleration analysis device.

Frequency analyzer 890 is analyzed the frequency of any repetition differential mode acceleration along one or more that shows in the signal output of differential mode detectors 830.This analysis comprises that the frequency with any this repetition differential mode acceleration compares with one or more frequency values that is provided with through the frequency configuration that provides to frequency analyzer 890.Again, along the position of backbone roughly under the situation near fulcrum N, the differential mode acceleration that

accelerometer

180a and 180b detect might be the rotary acceleration that shows that head that the user causes moves at the geometry of given neck and head.Thereby; Might for previous for the frequency analyzer 790 previous more the same purposes of discussing and with more the same mode, through the frequency of any this repetition differential mode acceleration of frequency analyzer 890 execution and this comparison of one or more frequency values.

It should be noted that; Might show that the rotation of user's head moves though suppose the detection of differential mode acceleration usually, have not corresponding to that the rotation head moves but showing that individual acoustic equipment is in some the feasible differential mode acceleration on the user's head of to detect.For example; On the opposite side that is placed on accelerometer 180a and 180b on user's head (for example; Be placed in the receiver that separates in a pair of receiver 100; As, at an A and C place) embodiment in, accelerometer 180a and 180b can detect and place accelerometer 180a and 180b to such an extent that repeat to push open each other and allow to move towards each other the relative acceleration that the structure of returning causes.This possibly be since the user with the talk or relevant chew or other lower jaw moves and causes of yawning because the muscle of the sidepiece of user's head is done the inferior maxilla of action with the mobile subscriber.Some muscle in this muscle are in the other and ear of being close to the users of user's skull so that they can be pushed to receiver 100, for example, make receiver 100 along with moving around through each these muscle of lower jaw moving telescopic.Under the situation that the user is just chewing, can this disturbing property and the differential mode acceleration of following appear with recursive nature, (perhaps possibly be 1Hz to 3Hz or 4Hz) in the frequency range of the 1Hz to 2Hz that possibly formerly discuss.

Fig. 8 a described with Fig. 6 c in the modification of the physical configuration 1500b that describes substantially similar, but combine to be coupled in the receiver 100 the physical configuration 1500e of another housing 160 of connector 150 of one housing 110 extraly through cable 152.Further, though physical configuration 1500e remains among gyroscope 170a and/or the accelerometer 180a one or two in receiver 100, be placed among gyroscope 170b and/or the accelerometer 180b one or two in housing 160.

Open or open this to

gyroscope

170a and 170b branch through dividing this to

accelerometer

180a and 180b in the housing 110 that is deployed in each on housing 160 and receiver 100; The Differential Detection that makes it possible to move; But difference is; Can maybe can't be physically coupled under the situation of user's head at housing 110, housing 160 can become and be physically coupled to the motion of mobile traffic when connector 150 is connected to the intercom system of this mobile traffic.Thereby; When individual acoustic equipment is on the user's head; In accelerometer 180a or gyroscope 170a one or another are physically coupled under the situation about moving of user's head, and reference is moved among accelerometer 180b or the gyroscope 170b one or another mobile conduct that is physically coupled to the vehicles.In this way, create the form of the Differential Detection that moves, the difference that wherein moves moves but not inertial reference with reference to the vehicles.

Be attached to this under situation in individual acoustic equipment that adopts physical configuration 1500e to

accelerometer

180a and 180b; Revise though might carry out some, but still can in physical configuration 1500e, use about analyzing acceleration that these accelerometers detect to confirm whether individual acoustic equipment is in the many technology in the technology of modification discussion of the physical configuration 1500a-1500d on the user's head.Yet; Be placed on

accelerometer

180a and 180b in the physical configuration 1500a-1500d so that can suppose under the situation that their coordinate system aims at, infeasible under the situation of this hypothesis in the separate housing that only is deployed in these two accelerometers physical configuration 1500e through their flexible cable of being coupled.In other words, the coordinate system of not guaranteeing

accelerometer

180a and 180b in the structure of physical configuration 1500e is aimed at.

gyroscope

170a and 170b; Can be as will be in greater detail, use the technology of the previous description of adopting single gyroscope 170a and adopt this to hybrid analysis of the technology of the previous description of

accelerometer

180a and 180b detect mobile.Yet, again, under the situation in these two gyroscopes only are deployed in the separate housing of the physical configuration 1500e that connects through cable, can not exist these two hypothesis that gyrostatic coordinate system is aimed at by any way.

That Fig. 8 b has described is similar with physical configuration 1500e, but combine extraly along a housing 155 again of cable 152 placements between the housing 160 of the housing 110 of receiver 100 and connector 150.The difference of physical configuration 1500f and physical configuration 1500e also is to be placed on the accelerometer 180b that exist and the whichever among the gyroscope 170b in the housing 160 of position of the interior but not connector 150 of housing 155 along cable 152.

In the housing 155 among accelerometer 180b or the gyroscope 170b one or two this be placed on the physical coupling to a certain degree of the motion that one or two and mobile traffic among accelerometer 180b or the gyroscope 170b still are provided when connector 150 is connected to the intercom system of these vehicles.Yet, one or two physical coupling to a certain degree to user's head in these moving detectors also is provided when the individual acoustic equipment that adopts physical configuration 1500f is on the user's head along the position of the housing 155 of cable 152 length.

Whether should be noted that one or two placement among accelerometer 180b in the housing 155 or the gyroscope 170b makes user except their head moves move also to depend on the individual acoustic equipment of confirming employing physical configuration 1500f is on the user's head.In brief; Be under the situation on the user's head and be connected under the situation of vehicle interior communication system at least one receiver 100 that cable 152 is coupled to, be bound to user's head effectively the part of the vehicles at the housing 160 of a part that is physically coupled to the vehicles through connector 150.Therefore; Because the health that the part of cable 152 is followed the user; As housing 155 can mobile result; Might detect make from a part of the vehicles to another part mobile subscriber head, the moving of user's body (for example, in the vehicles, changing the seat) in the vehicles like the user.Thereby the user except head moves makes moves that also can cause can be owing to the user but not detecting of other influences is mobile.

Be not to be different from head to move, the moving of the cable 152 that the user who in the vehicles, moves everywhere causes might be compared translation and more rotate in itself.This is because can regard cable 152 roughly as between two fulcrums and extend, that is, cable is coupled to point and the point of the housing 110 that cable is coupled to receiver 100 of the housing 160 of connector 150.Thereby; Because again; Rotation is moved and to be shown that more Client-initiated moves (even in fact just in the vehicles, making under the situation that the translation health moves the user); And translation is moved and is shown more through what other influence (for example, the vehicles self move) brought and move, so also can in physical configuration 1500f, use the technology that briefly is described as the acceleration that the rotation that is used for analyzing and testing that can in physical configuration 1500e, use moves and/or detect.

Fig. 8 c has described physical configuration 1500g; This physical configuration 1500g and physical configuration 1500e are substantially similar; But the cable 152 of alternate physical configuration 1500e wherein forms less radio-frequency and/or optical link between the housing 160 of housing 110 of at least one and connector 150 in receiver 100.

Fig. 9 a described combine this to the individual acoustic equipment 1000a of gyroscope 170a and 170b and among the 1000b any in the feasible electrical architecture 2500i of spendable control circuit 2000.As will be explained in more detail, be configured to efforts be made so that the physical configuration of aiming at by any way (like, any one among the physical configuration 1500e-1500g) to electrical architecture 2500i with the coordinate system that wherein can't suppose gyroscope 170a and 170b.Though from only supporting that the two changes single gyroscope 170a to supporting

gyroscope

170a and 170b, electrical architecture 2500i is similar with the previous electrical architecture 2500g that describes with a large amount of modes.When adopting electrical architecture 2500i; Control circuit 2000 incorporating interconnectings, together with in adjuster 710, differential mode detector 730, degree analyzing device 760, velocity analyzer 770, acceleration analysis device 780 and frequency analyzer 790 one or more of controller 950, the property difference that moves with the rotation of analyzing each detection among gyroscope 170a and the 170b.

Each output among gyroscope 170a and the 170b shows each self-monitoring signal that moves around one or more rotation.Yet, directly outputing to its signal under the situation of differential mode detector 730 at gyroscope 170b, gyroscope 170a outputs to its signal towards adjuster 710.Also receive the output of gyroscope 170b towards adjuster 710, and analyze each gyroscope in these gyroscopes similitude between moving by the rotation that detects at interval with the coordinate system that repeats to draw gyroscope 170a towards how with the coordinate system of gyroscope 170b towards different.The indication that the rotation of each is moved in adjuster 710 can be gone up certain time period (can be second, or until minute) from

gyroscope

170a and 170b asks average; With two coordinate systems drawing them towards difference, make offset in these coordinate systems a coordinate system with respect to another coordinate system towards false relatively change.Next, adopt the basis of this difference that draws as following conversion towards adjuster 710: the rotation that shows in the signal of gyroscope 170a output is moved and is stood this conversion to create these modification of moving indications that gyroscope 170a detects.Output to differential mode detector 730 to the signal that these these modification indications of moving are provided subsequently towards adjuster 710.

(present coordinate system alignment) moved in the rotation that differential mode detector 730 relatively detects; And the signal of the difference that moves the rotation that shows these detections (that is, differential mode rotation move indication) outputs to the whichever that exists in degree analyzing device 760, velocity analyzer 770, acceleration analysis device 780 and the frequency analyzer 790.In other words, differential mode detector 730 is moved apart the mobile any common mode rotation that detects with

gyroscope

170a and 170b of differential mode rotation.Can be as an alternative and/or except combining and using differential mode detector 730 to provide the indication of the difference that the rotation of detection moves; Towards adjuster 710 can export

show gyroscope

170a and 170b coordinate system towards the signal of the change that draws difference, the change of possible designated conversion.Tend to filter out false under average and/or other the technological situation that changes drawing towards adjuster 710 in the difference process to adopt, can think that the output of the signal that changed to difference towards the adjuster 710 his-and-hers watches Ming Dynasty is in order to filter out the expectation mode of the mistake indication that the differential mode rotation moves.

Degree analyzing device 760 is analyzed this amount to the differential mode rotation of

gyroscope

170a and 170b detection.Again, can be configured to degree analyzing device 760 to be limited as detection to this analysis be the differential mode rotation amount that in the predetermined back and forth sampling period, occurs, and this length of being scheduled to the reciprocal sampling period through the sampling setting that provides to degree analyzing device 760.This analysis comprises that the differential mode that detects is rotated amount of movement to be compared with one or more rotation degree value that through the degree setting that also provides to degree analyzing device 760.Again; Can specify required minimum degree (that is minimum rotation degree value) that differential mode rotation moves to rotate the assistance that is moved apart with the mistake indication (particularly not adopting under the situation that the output of adjuster is done like this) that filters out the differential mode rotation and move and/or as the differential mode that the differential mode rotation of the detection that causes the user is moved with the detection that causes through other influence.

In addition; Can move the known physiology restriction of degree of their head based on the people with respect to their trunk; Specify maximum rotation degree value, the assistance that is moved apart as the differential mode rotation of the differential mode rotation of the detection that causes the user being moved with the detection that causes through other influence.Yet; Adopt at individual acoustic equipment under the situation of physical configuration 1500f; Specify that the differential mode rotation moves at utmost so that the process that the turnover zone that other influence causes from passing through of detecting divides the user that detects to move, use, can be because gyroscope 170b be placed on housing 155 interior the having difficulties of placing along the length of cable 152.Particularly; The user so that the mode that their head rotates in one direction is when moving in the vehicles everywhere; Possible is; The mode that housing 155 can rotate with it in an opposite direction moves everywhere, make gained rotation degree difference create surpass appointment that the differential mode rotation moves at utmost and therefore think artificially infeasible, to the differential mode degree of the rotation of degree analyzing device 760 signalings.Thereby, under the situation that adopts physical configuration 1500f, can need to specify more strengthening at utmost of rotation, perhaps can preferably not attempt to specify this maximum.

Velocity analyzer 770 is analyzed differential mode detector 730 and is moved the mobile speed of differential mode rotation that draws according to this rotation to

gyroscope

170a and 170b detection.This analysis comprises that the differential mode speed with the rotation that detects compares with one or more rotary speed value that through the speed setting that provides to velocity analyzer 770.Can minimum differential mode rotary speed value among the rotary speed value; Before this indication that differential mode rotation is moved will be admitted effective indication that rotation is moved as differential mode at all, or this indication that the differential mode rotation is moved will by admit as move through the head on user's the part cause before, this minimum differential mode rotary speed value must be indicated as in the signal that differential mode detector 710 is exported and detect.

In addition; Can be chosen to maximum differential mode rotary speed value; Attempt to move with respect to their trunk the known physiology restriction of speed of their head, move to rotate and be moved apart with the differential mode that causes through other influence move the differential mode rotation that causes through head based on the people.Yet; Again; Adopt at individual acoustic equipment under the situation of physical configuration 1500f,, and in the process of the maximal rate of specifying the differential mode rotation to move, may meet difficulty because housing 155 rotates freely possibly create the mode that the wrong presentation that artificial infeasible rotation moves occurred.

Acceleration analysis device 780 is analyzed differential mode detector 710 and is moved the mobile acceleration of differential mode rotation that draws according to the rotation of

gyroscope

170a and 170b detection.This analysis comprises that the change of acceleration that the differential mode rotation is mobile and/or acceleration compares with one or more rotary acceleration value that through the acceleration setting that provides to acceleration analysis device 780.Can be that minimum rotary acceleration sizes values or minimum acceleration change rate value among the rotary acceleration value; Before the indication that rotation is moved will be admitted effective indication that rotation is moved as differential mode at all, or indication that the differential mode rotation is moved will by admit as move through the head on user's the part cause before, this minimum rotary acceleration sizes values or minimum acceleration change rate value and must be indicated as in the signal of differential mode detector 730 outputs and detect.In addition, can select maximum rotary acceleration value, move with the rotation that causes through other influence and be moved apart move the rotation that causes through head based on the known physiology restriction of speed that can moving-head attempting.

Again; Adopt at individual acoustic equipment under the situation of physical configuration 1500f; Because housing 155 rotates freely possibly create the mode that the wrong presentation that artificial infeasible rotation moves occurred, and in the process of the peak acceleration of specifying the differential mode rotation to move, may meet difficulty.Yet; Can change electrical architecture 2500i slightly; So that acceleration analysis device 780 can directly monitor from the signal of gyroscope 170a reception to the indication of the change speed of the change speed that is under the situation on the user's head the artificial feasible rotary acceleration that produces than the user at this individual acoustic equipment rotary acceleration bigger, that gyroscope 170a detects.The rotary acceleration that gyroscope 170a detects this high changes speed will show more that individual acoustic equipment dangles and strikes in the object in the vehicles at the end of cable 152, perhaps show more allow individual acoustic equipment at the volley free skating drop on the vehicles inside so that it move everywhere and strike in the part of the vehicles along with the vehicles.

Frequency analyzer 790 is analyzed the frequency that the mobile any circulation acceleration of the differential mode rotation that draws is moved in rotation that differential mode detectors 730 detect according to gyroscope 170a and 170b.Can specify the frequency configuration of maximum frequency values at least for frequency analyzer 790 provides, the differential mode rotation of the repetitive nature that can relatively draw to this maximum frequency values is moved to confirm that whether this mobile frequency is Tai Gao and can't show the frequency that user's muscle moves.

Though quite at length presented the operation of electrical architecture 2500i in the individual acoustic equipment that adopts among physical configuration 1500e or the 1500f one; But it should be noted that in the individual acoustic equipment of modification of the physical configuration 1500a that can in adopting Fig. 6 b, describe and adopt electrical architecture 2500i valuably, particularly under the situation in the housing 110 that is deployed in this to accelerometer 180a and 180b receiver 100.Again, in the modification of the physical configuration 1500a that in Fig. 6 b, describes, through permitting being coupled to the housing 110 of receiver 100 end of belt 102 with respect to being rotationally connected of the terminal rotary shell 110 of belt 102.As discussed previously, in this scene, can't depend on accelerometer 180a and 180b towards aligning, thereby electrical architecture 2500i will be useful towards the ability of the unpredictable difference of aiming between accelerometer 180a and the 180b in order to hold.Further, control circuit 2000 when implementing electrical architecture 2500i in order to draw between accelerometer 180a and the 180b towards the ability of difference detecting when each spinning receiver 100 housing 110 so that the cavity 112 that housing 110 limits can't all be coupled to acoustically understand in user's the process of instance of duct useful.Pass through instance; This individual acoustic equipment can be attended by and store or carry the casing (not shown); In this storage or carry in the casing and to store individual acoustic equipment, its middle shell 110 rotations make two cavitys 112 towards the common wall of this casing so that can carry out individual acoustic equipment in it than compact storage.Draw between accelerometer 180a and the 180b towards the process of difference in draw consistent under the situation of difference with the housing that has rotated in this way 110; Controller 950 can not be in the indication reception of this species diversity of response on the user's head through confirming this individual acoustic equipment immediately; And therefore; Make this individual acoustic equipment get into immediately and hang down power mode and/or take other possible action, like what before fully detailed.

Fig. 9 b described combine at least this to the individual acoustic equipment 1000a of

accelerometer

180a and 180b and 1000b in the feasible electrical architecture 2500j of spendable control circuit 2000 in any.As will be explained in more detail, be configured to efforts be made so that the physical configuration of aiming at by any way (like, any one among the physical configuration 1500e-1500g) to electrical architecture 2500j with the coordinate system that wherein can't suppose accelerometer 180a and 180b.Though there is this to change, electrical architecture 2500j is similar with the previous electrical architecture 2500h that describes with a large amount of modes.When adopting electrical architecture 2500j; Control circuit 2000 incorporating interconnectings, in adjuster 810, differential mode detector 830, common mode detector 840, acceleration analysis device 860, frequency analyzer 870, acceleration analysis device 880 and frequency analyzer 890 one or more together with controller 950, to analyze this characteristic that moves that

accelerometer

180a and 180b are detected as acceleration along one or more.

Each output among accelerometer 180a and the 180b shows the signal of each self-monitoring acceleration along one or more.Yet, directly outputing to its signal under the situation of differential mode detector 830 at accelerometer 180b, accelerometer 180a outputs to its signal towards adjuster 810.Also receive the output of accelerometer 180b towards adjuster 810, and analyze in these accelerometers each accelerometer by the similitude between the acceleration that detects at interval with the coordinate system that repeats to draw accelerometer 180a towards how with the coordinate system of accelerometer 180b towards different.In certain embodiments, towards adjuster 810 can be in drawing between these coordinate systems how different processes the direction of the constant downward 1G acceleration that causes of identification accelerometer 180a and each detection terrestrial gravitation among the 180b.Can ask the indication of the acceleration of each among certain time period (can be second, or until minute) self-acceleration of coming up meter 180a and the 180b on average towards adjuster 810, thus with two coordinate systems drawing them towards difference offset in these coordinate systems a coordinate system with respect to another coordinate system towards the change of falseness relatively.Next, towards this following basis of changing of differences that draw conduct of adjuster 810 employings: the acceleration that shows in the signal of accelerometer 180a output stands the modification indication of this conversion with these acceleration of establishment accelerometer 180a detection.Output to differential mode detector 830 and common mode detector 840 to the signal of this modification indication that these acceleration are provided subsequently towards adjuster 810.

Differential mode detector 830 is the acceleration that detects of accelerometer 180a and 180b relatively, and it is individual to output to the whichever that exists in acceleration analysis device 880 and the frequency analyzer 890 to the signal (that is differential mode acceleration) of the difference of the acceleration that shows these detections.Common mode detector 840 is these same acceleration relatively; And it is individual to output to no matter which that exists in acceleration analysis device 860 and the frequency analyzer 870 to the signal that shows the discovery acceleration common to the acceleration of accelerometer 180a and the two detection of 180b (that is common mode acceleration).In other words, as in the situation of electrical architecture 2500h, differential mode detector 830 is used for distinguishing differential mode acceleration and common mode acceleration with common mode detector 840.Can be as an alternative and/or except combining and using differential mode detector 830 to provide the indication of difference in the acceleration of detection; Can export towards adjuster 810 coordinate system that shows accelerometer 180a and 180b towards the signal of the change that draws difference, the change of possible designated conversion.Tend to filter out false under average and/or other the technological situation that changes drawing towards adjuster 810 in the process of difference to adopt, can think that the output of the signal that changed to difference towards the adjuster 810 his-and-hers watches Ming Dynasty is in order to filter out the expectation mode of the false indication of differential mode acceleration.

Acceleration analysis device 860 is analyzed accelerometer 180a and the two acceleration (that is common mode acceleration) detected, that in the signal output of common mode detector 840, show of 180b.This analysis comprises that the change with common mode acceleration and/or common mode acceleration compares with one or more accekeration that through the acceleration setting that provides to acceleration analysis device 860.Again, as discussed previously, the common mode acceleration might be the translational acceleration that shows the influence of the head that causes except the user moving.Really; The change speed of some common mode acceleration and/or common mode acceleration only can show can individual acoustic equipment be not in the situation that occurs under the situation on the user's head (participant is on the user's head at individual acoustic equipment, or not situation under the common mode acceleration that can occur with envisioning relative); As, individual acoustic equipment drops and/or clashes into floor or other rigid surface.Controller 950 can the change speed of this acceleration or acceleration, from the indication of acceleration analysis device 860 as confirming that immediately individual acoustic equipment is not in the basis on the user's head.

Frequency analyzer 870 is analyzed the frequency of accelerometer 180a and the two any repetition common mode acceleration detected, that in the signal output of common mode detector 840, show of 180b.This analysis comprises that the frequency with this common mode acceleration compares with one or more frequency values that is provided with through the frequency configuration that provides to frequency analyzer 870.Again, as discussed previously, the common mode acceleration might be the translational acceleration that more likely shows the influence of the head that causes except the user moving (for example, by mobile traffic but not in these vehicles user's head move cause).

Acceleration analysis device 880 is analyzed the differential mode acceleration that shows in the signal output of differential mode detector 830.This analysis comprises that the change with differential mode acceleration and/or differential mode acceleration compares with one or more accekeration that through the acceleration setting that provides to acceleration analysis device 880.As discussed previously; Along the position of backbone neck neck portion roughly under the situation near fulcrum N, the differential mode acceleration that

accelerometer

Frequency analyzer 890 is analyzed the frequency of any repetition differential mode acceleration that shows in the signal output of differential mode detector 830.This analysis comprises that the frequency with any this repetition differential mode acceleration compares with one or more frequency values that is provided with through the frequency configuration that provides to frequency analyzer 890.Again, along the position of backbone neck neck portion roughly under the situation near fulcrum N, the differential mode acceleration that

accelerometer

Review electrical architecture 2500i and 2500j the two, the indication that can in fact whether be coupled to the vehicle interior communication system through receiving connector 150, the mode of these various analyses that the response of change controller 950 is moved.Pass through instance; Make under the situation of weighted value owing to the various analysis results that move at controller 950; Controller 950 can be changed branch and task these results' weighted value and may confirm that to make usually individual acoustic equipment is not on the throne when connector 150 is not coupled to the vehicle interior communication system, and can change weighted value with make usually when connector so is coupled, may confirm should individual's acoustic equipment on the throne.Through another instance; Using under a pair of gyrostatic situation with the mode of discussing with reference to electrical architecture 2500i; Connector 150 is not coupled to the indication of vehicle interior communication system can be so that the mode of analyzing is moved in control circuit 2000 change to be deployed in which gyroscope in the gyroscope in the housing 160 to ignore, and being not to be different from the mode of having described about electrical architecture 2500g to analyze the mobile indication that other gyroscope provides.

It should be noted that; Though quite at length presented concrete electrical architecture 2500g-2500j; But other modification of electrical architecture is feasible, and the characteristic that wherein analyze to move (comprising mobile differential mode characteristic and in the common mode characteristic one or two) is with from passing through mobile differentiation user that other influence (particularly, the vehicles move) causes (particularly; Head moves) moving of causing, this will require in this article to protect and the scope of the content described in.The definite essence of the various analyses of carrying out regardless of the indication that acceleration and/or rotation are moved, controller 950 all receive and adopt these indications at least whether individual acoustic equipment being in make on the user's head in definite process.

Be not to be different from the content of before having discussed for electrical architecture 2500a-2500f, one or more that can mode that Management Controller 950 confirms the current operation status that individual acoustic equipments are whole be provided for controller 950 regularly is provided with.Through instance, can for controller 950 be provided at confirm no longer so to place individual acoustic equipment and make individual acoustic equipment get into before the low power mode continue receiving feature show that individual acoustic equipment is in that rotation on the user's head is moved or any indication of acceleration after concrete time period of waiting.

In certain embodiments, controller 950 can make various weighted values owing to one or more this indication in this indication.Pass through instance; Can provide big weight to

accelerometer

180a and 180b to the reception of the indication of the detection of common mode acceleration to the indication of the detection of the change speed of rotary acceleration or this so that it can not be in gyroscope 170a consistent on the user's head very much for dropping with individual acoustic equipment and/or clashing into floor or rigid surface, perhaps if not provide be superior to can detected other acceleration or rotation other indication of moving, the higher priority in definite individual acoustic equipment process whether on the throne.In response to the reception of this higher priority indication, controller 950 can be done action immediately through making individual acoustic equipment enter into low power mode immediately under individual acoustic equipment hypothesis not on the throne.

In certain embodiments, whether on the throne controller 950 can be based on the combined reception of the analysis of the sound of analysis of moving that detects and detection about the indication of individual acoustic equipment.Though through instance and do not specifically illustrate; Controller 950 can receive from one or more movable sensor (that is one or more among one or more among gyroscope 170a and the 170b and/or accelerometer 180a and the 180b) and show outer microphone 130 and the signal from sef-adapting filter 920 of the comparative result of the sound that interior microphone 120 detects.Possible be to use different in accelerometer, gyroscope and the microphone to confirm that individual acoustic equipments are whether on the throne will be by the different rates consumed power; And under the situation that adopts battery or other limited power, can expect to use the different approaches in these approach to confirm based on current power mode whether individual acoustic equipment is on the throne.

More specifically and once more with reference to Fig. 4; Along with individual acoustic equipment gets into dark power mode 550; Can move or the indication (whether being differential mode) of differential mode acceleration to the rotation that is attributable to be in again the individual acoustic equipment on the user's head, reciprocally monitor one or two perhaps one or two among gyroscope 170a and the 170b among accelerometer 180a and the 180b.This can carry out in

accelerometer

180a and 180b (perhaps gyroscope 170a and/or 170b) possibly consume the understanding of less electrical energy, to substitute the sound of relatively outer microphone 130 and interior microphone 120 detections.Further; The constant consumption that gyroscope needs electric energy usually is keeping quality and rotate or to vibrate the fact as inertial reference and might cause gyroscope to compare accelerometer to consume more energy, and this can make the use of one or more accelerometer be preferable over gyrostatic use.Probably, accelerometer or gyrostatic use will drive the sound that microphone 120 will detect in acoustic driver 190 outputs relatively so that whether analysis exists the acoustics coupling of going to duct to consume less electrical energy.

The use of controller 950 through accelerometer 180a and 180b (perhaps gyroscope 170a and/or 170b) 565 receive be in the indication on the user's head again for individual acoustic equipment after, controller 950 makes individual acoustic equipment get into normal power mode 520.In case in normal power mode, whether the difference that controller 950 just can switch between the sound of the outer microphone 130 of analyzing in a pair of receiver 100 each and 120 detections of interior microphone is still on the throne to test individual acoustic equipment.Really; In being configured to provide based on feedforward and modification based on the individual acoustic equipment of the combination of the ANR of feedback; Because microphone will be in use; So possibly think that expectation switches to the analysis of adopting the sound that these microphones detect, and can be attached to the analysis of the difference of each self-monitoring sound during the normal power mode in other of the sound that carries out analyzed so that ANR to be provided.Further, the existence of the independent set of outer microphone in each 130 and interior microphone 120 makes it possible to carry out in the receiver 100 each and whether is in the independent detection in the ear position adjacent in the ear with the user in the receiver 100.Thereby; During normal power mode; Can use the independent comparison of the sound that adopts for each receiver 100; Come about whether need interrupt to a receiver in the receiver 100 one or more function simultaneously still another receiver in receiver 100 this one or more function is provided, to controller 950 indication is provided.

Can be as an alternative; Controller 950 can only adopt among

accelerometer

180a and 180b (if existence) and/or gyroscope 170a and the 170b (if existence) one or two to confirm whether individual acoustic equipment on the throne during normal power mode, make only adopt to providing of ANR and/or other audio-frequency function in microphone 120 and outer microphone 130.

Review among Fig. 3 a-3f, 7a-7b and the 9a-9b electrical architecture of each; What be worth reaffirming is; No matter control circuit 2000 is to analyze from the signal (as in the situation of electrical architecture 2500a-2500f) of microphone still to analyze from accelerometer and/or gyrostatic signal (as in the situation of electrical architecture 2500g-2500j), all can be through various forms of simulations and/or digital circuit enforcement control circuit 2000.More specifically, control circuit 2000 can combine separately simulation and/or digital assembly to implement each compensator in controller 950, the compensator, each sef-adapting filter and each analyzer in the analyzer in the sef-adapting filter.Can be as an alternative; Control circuit 2000 can be based on the memory of the following command sequence of storage and the combination of treatment facility; This command sequence makes treatment facility carry out in compensator, sef-adapting filter and/or the analyzer one or more function when carrying out through treatment facility, and makes treatment facility confirm mode of operation and take action and/or make to enter into power mode in the process of one or more in control power supply 3100, ANR circuit 3200, interface 330 and Audio Controller 3400 subsequently subsequently.

More specifically and pass through instance; Control circuit 2000 carry out sound analysis (as; The comparison of the outer microphone 130 and the sound of interior microphone 120 detections; Perhaps as, the comparison of the sound that the sound of acoustic driver 190 output and interior microphone 120 detect) situation under, can pass through digital signal processor (DSP) enforcement control circuit 2000.This DSP can be higher relatively integrated character; Make its combine wherein to store the random access storage device (RAM) and/or the modification able to programme or erasable read-only memory (ROM) of following command sequence, this command sequence makes this process nuclear implement one or more in one or more and/or compensator 210,310 and 410 in controller 950, the sef-adapting filter 920 and 940 when carrying out through the process nuclear of DSP.This DSP can further combine one or more analog to digital converter (DAC), becomes numerical data to the analog signal conversion of one or two output in outer microphone 130 and the interior microphone 120 through this one or more analog to digital converter (DAC).This DSP can (for example further combine one or more digital interface; Digital serial interface); Can moving of signal indicating detection be provided to DSP through this one or more digital interface accelerometer and/or gyroscope (for example, one or more among one or more among gyroscope 170a and the 170b and/or accelerometer 180a and the 180b).Can carry out numeral input this provide with enhancing show detection sound from the providing of the signal of microphone, or can replace this providing of carrying out the numeral input that provide from the sort signal of microphone.

Through another instance; The indication of moving that detects at control circuit (as; Under the situation of analysis the indication of moving that provides in the signal of one or more reception among one or more from

gyroscope

170a and 170b and/or accelerometer 180a and the 180b), can implement control circuit 2000 through microcontroller to detecting.But this microcontroller can combine to store the RAM of following command sequence and/or the ROM of able to programme/erasable form, and this command sequence makes process nuclear implement controller 950 when carrying out through the process nuclear of microcontroller; In the frequency analyzer 790,870 and 890 one or more; In the acceleration analysis device 780,860 and 880 one or more; Velocity analyzer 770; Degree analyzing device 760; Common mode detector 840; In the differential mode detector 730 and 830 one or more; And/or in adjuster 710 and 810 one or more.This microcontroller can (for example further combine one or more digital interface; Digital serial interface); Can moving of signal indicating detection be provided to DSP through this one or more digital interface accelerometer and/or gyroscope (for example, one or more among one or more among gyroscope 170a and the 170b and/or accelerometer 180a and the 180b).

Other embodiment is in the applicant can have the scope of accompanying claims and other claim of right.

Claims

1. method comprises:

The interior signal of the interior microphone output of the inside cavity administration of the housing of the receiver of analyzing personal acoustic equipment, and the external signal of the outer microphone output of said individual acoustic equipment deploy are with the extraneous environment of housing that is coupled to said receiver through acoustically; And

Based on the analysis of signal in said and said external signal, confirm the mode of operation of said receiver.

2. according to the process of claim 1 wherein that the mode of operation of confirming said receiver comprises: confirm said receiver be in the ear that is placed on the user nearby so that said cavity be coupled in the mode of operation of duct with acoustically, still be in the ear that is not placed on the user nearby so that said cavity is coupled in the mode of operation of the extraneous environment of said housing with acoustically.

3. according to the process of claim 1 wherein:

Analyze said in signal and said external signal comprise: the signal rank of signal in said in the selected scope of frequency is compared with the signal rank of said external signal in said frequency is selected scope; And

The mode of operation of confirming said receiver comprises: be provided with in the maximum difference of appointment through the difference threshold value in response to the difference between the signal rank that detects said external signal and said interior signal in the selected scope of said frequency at least in part, confirming that said receiver is in the mode of operation nearby that is placed on ear.

4. according to the method for claim 3, further comprise: said external signal is applied the transfer function of revising the sound that said external signal representes with the substantially similar mode of mode of revising the sound of propagating to said cavity from the extraneous environment of said housing when being in the mode of operation nearby that is placed on ear at said receiver.

5. according to the method for claim 4; Wherein said external signal being applied transfer function comprises: the ANR that provides based on said individual acoustic equipment at least in part revises the mode of the sound of propagating to said cavity from the extraneous environment of said housing, selects transfer function.

6. according to the method for claim 1; Wherein analyzing said interior signal and said external signal comprises: through drawing the 3rd transfer function that shows difference between first transfer function and second transfer function at least; Analyze the difference between said first transfer function and said second transfer function; The sound that said first transfer function is represented to send in the acoustic noise source from the environment in the said housing external world is along with it is propagated and the mode of change from the interior microphone of said noise source in said cavity, and said second transfer function representes that said sound is along with it is propagated and the mode of change from said noise source microphone outside said.

7. according to the method for claim 6; The mode of operation of wherein confirming said receiver comprises: confirm that the difference between in said the 3rd transfer function and the first storage transfer function and the second storage transfer function is being provided with through the difference threshold value in the maximum difference of appointment; The said first storage transfer function is corresponding to the mode of operation nearby that is placed on ear, and the said second storage transfer function is corresponding to the mode of operation nearby of the ear that is not placed on the user.

8. according to the method for claim 6; The mode of operation of wherein confirming said receiver comprises: at least one characteristic of confirming said the 3rd transfer function is compared one individual features in the first storage transfer function and the second storage transfer function and is more pressed close to another the individual features in said first storage transfer function and the said second storage transfer function; The said first storage transfer function is corresponding to the mode of operation nearby that is placed on ear, and the said second storage transfer function is corresponding to the mode of operation nearby of the ear that is not placed on the user.

9. according to the method for claim 6, further comprise:

Acoustic driver through being deployed at least in part in the said cavity is exported the audio frequency that provides with electrical way with acoustically in said cavity;

Monitor the signal rank of said external signal;

Draw the 4th transfer function, said the 4th transfer function represent said acoustic driver with the audio frequency that provides with electrical way of acoustically output along with it is propagated and the mode of change from said acoustic driver microphone to said in; And

Based on the characteristic of analyzing said the 4th transfer function, confirm the mode of operation of said receiver at least in part.

10. according to the method for claim 9; In the audio frequency that wherein whether meets the minimal level setting at least and whether provide with electrical way with acoustically output in the said cavity of current forward at least one according to the signal rank of said external signal, the mode of operation of said receiver confirm based on analyze said in signal and the difference between the said external signal perhaps analyze the characteristic of said the 4th transfer function.

11. the method according to claim 1 further comprises:

Confirmed to occur the change of the mode of operation of said receiver; And

At least in response to the change of the mode of operation of confirming to have occurred said receiver, the integral body of confirming said individual acoustic equipment at least be placed on around the user's head or mode of operation on the user's head and be not placed on around the user's head or mode of operation on the user's head among changed mode of operation.

12. the method according to claim 1 further comprises:

Confirm the change of the mode of operation of the said receiver of appearance; And

Action is taked in change in response to the mode of operation of confirming the said receiver of appearance, and wherein said action is one that comprises in the set of following content:

Change provides to the electric energy of the part of said individual acoustic equipment;

Change said individual acoustic equipment providing to ANR;

The indication of the current operation status of the receiver through said at least individual acoustic equipment is signaled to another equipment that said individual acoustic equipment communicates with;

Communication mic mute with said individual acoustic equipment; And

Acoustic driver that will be through said receiver change its course with the audio frequency of acoustically output and export with acoustically for another acoustic driver of another receiver through said individual acoustic equipment.

13. an individual acoustic equipment comprises:

First receiver has first housing;

Microphone in first, be deployed in first cavity of said first housing and be used to export microphone detects in the expression said first sound first in signal;

The first outer microphone is deployed in first external signal to be coupled to the extraneous environment of said first housing through acoustically and to be used to export the sound of the expression said first outer microphone detection on the said individual acoustic equipment; And

Control circuit; Be coupled to the said first interior microphone and be coupled to the said first outer microphone to receive signal and said first external signal in said first; To analyze the difference between the said first interior signal and said first external signal; And, confirm the mode of operation of said first receiver at least in part based on the difference of analyzing between the said first interior signal and said first external signal.

14. individual acoustic equipment according to claim 13; Wherein said control circuit through confirm at least said receiver be in the ear that is placed on the user nearby so that first cavity be coupled in the mode of operation of duct with acoustically, still be in the ear that is not placed on the user nearby so that said first cavity is coupled in the mode of operation of the extraneous environment of said first housing with acoustically, confirm the mode of operation of said receiver.

15. according to the individual acoustic equipment of claim 13, wherein said first receiver is the form of obtaining one group of form of ear-hang, ear top ear-hang and ear's receiver on comprising in-ear phone, ear.

16. according to the individual acoustic equipment of claim 13, wherein said individual acoustic equipment is the device type of from a group equipment type that comprises the helmet of listening to headphone, noise reduction headset, two-way communication head-telephone, earphone, earplug, two-way communication ear receiver, ear's protector, the cap that combines receiver and combination receiver, obtaining.

17. the individual acoustic equipment according to claim 13 further comprises: the communication microphone is deployed on the said individual acoustic equipment to detect user's sound of voice.

18. according to the individual acoustic equipment of claim 13, the wherein said first outer microphone is the communication microphone that is deployed on the said individual acoustic equipment with the sound of voice that detects the user.

19. the individual acoustic equipment according to claim 13 further comprises:

Second receiver has second housing;

Microphone in second, be deployed in second cavity of said second housing and be used to export microphone detects in the expression said second sound second in signal;

The second outer microphone is deployed in second external signal to be coupled to the extraneous environment of said second housing through acoustically and to be used to export the sound of the expression said second outer microphone detection on the said individual acoustic equipment; And

Wherein said control circuit further is coupled to the said second interior microphone and is coupled to the said second outer microphone to receive signal and said second external signal in said second; Analyze the difference between the said second interior signal and said second external signal; And, confirm the mode of operation of said second receiver at least in part based on the difference of analyzing between the said second interior signal and said second external signal.

20. the individual acoustic equipment according to claim 13 further comprises:

Second receiver has second housing;

Microphone in second, be deployed in second cavity of said second housing and be used to export microphone detects in the expression said second sound second in signal; And

Wherein said control circuit further is coupled to the said second interior microphone to receive signal in said second; Analyze the difference between the said second interior signal and said first external signal; And at least in part based on the analysis of difference between signal in said second and said first external signal; Another ear that is placed on the user nearby so that said second cavity is coupled to the state of duct with acoustically; And be not placed on the user another ear nearby so that said second cavity is coupled between the state of the extraneous environment of said second housing with acoustically, confirm the state of said second receiver.

21. individual acoustic equipment according to claim 13; Further comprise: power supply; Be used for electric energy being provided and being coupled to said control circuit to the assembly of said individual acoustic equipment, wherein said control circuit confirms that in response to said control circuit the change of the mode of operation of said at least first receiver of appearance provides to the electric energy of assembly to change it to said power supply signalling.

22. individual acoustic equipment according to claim 13; Further comprise: the ANR circuit; Be used to make said individual acoustic equipment that ANR can be provided and be coupled to said control circuit that the change that wherein said control circuit has confirmed to occur the mode of operation of at least the first receiver in response to said control circuit to signal to change its providing ANR to said ANR circuit.

23. individual acoustic equipment according to claim 13; Further comprise: interface; Be used to make said individual acoustic equipment and to be coupled to said control circuit with another devices communicating, the change that wherein said control circuit the mode of operation of at least the first receiver confirm to occur in response to said control circuit is operated said interface and is signaled to said another equipment with the indication of the change of the mode of operation through at least the first receiver having occurred.

24. individual acoustic equipment according to claim 13; Further comprise: Audio Controller; Be coupled to said control circuit; Wherein said control circuit is operated the action of said Audio Controller to take from the set that comprises following content, to select in response to the change of the mode of operation of confirming to have occurred at least the first receiver: the audio mute that the communication microphone of said individual acoustic equipment is detected, and first acoustic driver that will be through said first receiver change its course with the audio frequency of acoustically output and export with acoustically for second acoustic driver of second receiver through said individual acoustic equipment.

25. a device comprises:

First microphone is deployed in first signal of the said acoustic signal that is detected with detection of acoustic signal and said first microphone of output expression in the cavity of housing of receiver of individual acoustic equipment;

Second microphone is deployed on the said individual acoustic equipment and representes the secondary signal of the said acoustic signal that said second microphone is detected with the extraneous environment of the housing that is coupled to said receiver through acoustically to detect said acoustic signal and output;

Sef-adapting filter, in order to filtering in said first signal and the said secondary signal, wherein said sef-adapting filter is regulated filter coefficient according to the adaptive algorithm of selecting in order to the signal power that reduces error signal;

The difference summer, in order to deduct in from said first signal and said secondary signal another in said first signal and the said secondary signal said one to draw said error signal;

Memory, the wherein predetermined sef-adapting filter parameter of the known state of operation of the said individual acoustic equipment of storage representation; And

Controller, the said predetermined sef-adapting filter compared with parameters that sef-adapting filter parameter that is used for said sef-adapting filter is drawn through said adaptive algorithm and said memory are stored.

26. according to the device of claim 25, the said sef-adapting filter parameter that wherein said sef-adapting filter draws is the filter coefficient of regulating through said sef-adapting filter.

27. according to the device of claim 25, the frequency response of the said sef-adapting filter that the said sef-adapting filter parametric representation that wherein said sef-adapting filter draws is corresponding with the filter coefficient of regulating through said sef-adapting filter.

28. a method that is used to control individual acoustic equipment comprises:

Under the situation in normal power mode, carry out at least the first receiver of said individual acoustic equipment whether and be in first test in the ear position adjacent with the user;

Under the situation in lower power mode, carry out said at least first receiver whether and be in second test in the ear position adjacent with the user;

At least wait for the time interval between the instance of carrying out said second test under the situation in said lower power mode;

In response to from said second the test, said at least first receiver is in user's ear position adjacent in indication, get into said normal power mode; And

In response on very first time section, do not exist from a plurality of instances of carrying out said first test, said at least first receiver is in user's ear position adjacent in indication, gets into the said power mode of hanging down more deeply.

29. according to the method for claim 28, wherein:

Said first receiver comprises:

Housing is used to limit the cavity of duct that is configured to when said first receiver is in the ear position adjacent with the user to be coupled to acoustically user's ear;

Outer microphone is deployed on the said housing to be coupled to the extraneous environment of said housing through acoustically; And

Interior microphone is placed in the said cavity; And

Said first test comprises:

Operate said outer microphone to detect the sound in the extraneous environment of said housing;

Operate said interior microphone to detect the sound in the said cavity; And

The acoustic phase that detects in sound that detects in the environment with the said housing external world in first scope of sound frequency and the said cavity relatively; Confirming that whether said cavity is coupled to the duct of user's ear with acoustically, whether as said at least first receiver is in the indication in the ear position adjacent with the user.

30. according to the method for claim 29, wherein:

Said first receiver further comprises: acoustic driver is placed to acoustically output sound in said cavity; And

Said second test comprises:

Operate said acoustic driver to test sound through acoustically output;

Operate said interior microphone to detect said test sound; And

The test sound that said acoustic driver is exported with acoustically is compared with the test sound that said interior microphone is detected; Confirming whether said cavity is coupled to the extraneous environment of said housing with acoustically, whether as said at least first receiver is in the indication in the ear position adjacent with the user.

31. according to the method for claim 29, wherein said second test comprises:

Operate said interior microphone to detect the sound in the said cavity; And

The acoustic phase that detects in sound that detects in the environment with the said housing external world in second scope of sound frequency and the said cavity relatively; Confirming that whether said cavity is coupled to the duct of user's ear with acoustically, whether as said at least first receiver is in the indication in the ear position adjacent with the user.

32. according to the method for claim 31, first scope that second scope of wherein said sound frequency is compared said sound frequency be sound frequency than close limit.

33. according to the method for claim 31, wherein:

Said individual acoustic equipment comprises the acoustic phase comparison to detect in the sound that detects in the environment that said housing is extraneous and the said cavity of sef-adapting filter with a plurality of taps;

Said first test comprises the tap of using first quantity and operates said sef-adapting filter by first sampling rate; And

Said second test comprises the tap of using second quantity and operates said sef-adapting filter by second sampling rate.

34. according to the method for claim 33, the tap of wherein said second quantity is less than the tap of said first quantity.

35. according to the method for claim 33, wherein said second sampling rate is lower than said first sampling rate.

36. according to the method for claim 28, wherein:

Said first receiver comprises:

Housing is used for limiting the cavity of duct that is configured to when said first receiver is in the ear position adjacent with the user to be coupled to acoustically user's ear;

Acoustic driver is placed to acoustically output sound in said cavity; And

Interior microphone is placed in the said cavity; And

Said first test comprises:

Operate said acoustic driver to test sound through acoustically output first;

Operate said interior microphone to detect the said first test sound; And

The first test sound that said acoustic driver is exported with acoustically with said in the first test sound that detected of microphone compare confirming whether said cavity is coupled to the environment in the said housing external world with acoustically, whether as said at least first receiver is in the indication in the ear position adjacent with the user.

37. the method according to claim 36 further comprises:

Operate said interior microphone to detect the noise sound in the said cavity, comprise the said first test sound;

Adopt said noise sound to feed back anti-noise sound as feedback reference sound to draw, wherein said feedback anti-noise sound comprises the said first test sound; And

Operate said acoustic driver so that said feedback anti-noise sound is outputed in the said cavity with acoustically, comprise the said first test sound.

38. according to the method for claim 36, the frequency of the wherein said first test sound is an infra-acoustic frequency.

39. according to the method for claim 36, wherein said second test comprises:

Operate said acoustic driver to test sound through acoustically output second;

Operate said interior microphone to detect the said second test sound; And

The test sound that said acoustic driver is exported with acoustically is compared with the second test sound that said interior microphone is detected; Confirming whether said cavity is coupled to the extraneous environment of said housing with acoustically, whether as said at least first receiver is in the indication in the ear position adjacent with the user.

40. according to the method for claim 39, other frequency that wherein frequency of the said second test sound is chosen to compare the frequency that comprises the said first test sound is through the less energy of acoustically output needs.

41. method according to claim 28; Wherein said individual acoustic equipment comprises motion sensor; And said second test comprises: monitor said motion sensor determining whether to have moved the part of said individual acoustic equipment, whether as said at least first receiver is in the indication in the ear position adjacent with the user.

42. method according to claim 28; Further comprise: carry out function under the situation in said normal power mode, said function is selected from the group that comprises following content: ANR based on feedforward is provided, provide based on the ANR of feedback, the said individual acoustic equipment of audio frequency, another equipment of signaling that in said cavity, provides with electrical way with acoustically output be in make in said at least first receiver and user's the ear position adjacent and with the audio transmission of the microphone detection of communicating by letter of said individual acoustic equipment to another equipment.

43. the method according to claim 42 further comprises: stop to carry out said function under the situation in said lower power mode.

44. the method according to claim 28 further comprises:

Carry out said first test under the situation in more shallow low power mode;

In response to from said first the test, said at least first receiver is in user's ear position adjacent in indication, get into said normal power mode; And

In response to do not exist the instance of carrying out said first test under the situation of coming in the comfortable said normal power mode, said at least first receiver is in user's ear position adjacent in indication, get into said more shallow low power mode.

45. method according to claim 44; Further comprise: the mode of function is carried out in change during normal power mode after getting into said more shallow low power mode, and said function is selected from the group that comprises following content: ANR based on feedforward is provided, provide based on the ANR of feedback, the said individual acoustic equipment of audio frequency, another equipment of signaling that in said cavity, provides with electrical way with acoustically output be in make in said at least first receiver and user's the ear position adjacent and with the audio transmission of the microphone detection of communicating by letter of said individual acoustic equipment to another equipment.

46. an individual acoustic equipment comprises:

First receiver comprises: housing is used to limit the cavity of duct of ear that is configured to be coupled to acoustically the user of said individual acoustic equipment;

Interior microphone is placed in the said cavity; And

Control circuit, be coupled to said in microphone and being configured to:

Under the situation in normal power mode, carry out said at least first receiver whether and be in first test in the ear position adjacent with the user;

At least wait under the situation in said lower power mode, carry out the time interval between the instance of said second test;

In response to from said second the test, said at least first receiver is in user's ear position adjacent in indication, said individual acoustic equipment is in the said normal power mode; And

In response on very first time section, do not exist from a plurality of instances of carrying out said first test, said at least first receiver is in user's ear position adjacent in indication, said individual acoustic equipment is in the said lower power mode.

47. according to the individual acoustic equipment of claim 46, wherein:

Said first receiver further comprises: outer microphone, be coupled to said control circuit and be deployed on the said housing to be coupled to the extraneous environment of said housing through acoustically; And

In order to carry out said first test, said control circuit is configured to:

Operate said interior microphone to detect the sound in the said cavity; And

48. according to the individual acoustic equipment of claim 47, wherein:

Said first receiver further comprises: acoustic driver, be coupled to said control circuit and be placed to acoustically output sound in said cavity; And

In order to carry out said second test, said control circuit is configured to:

Operate said acoustic driver to test sound through acoustically output;

Operate said interior microphone to detect said test sound; And

49. according to the individual acoustic equipment of claim 47, wherein in order to carry out said second test, said control circuit is configured to:

Operate said interior microphone to detect the sound in the said cavity; And

50. according to the individual acoustic equipment of claim 49, first scope that second scope of wherein said sound frequency is compared said sound frequency be sound frequency than close limit.

51. according to the individual acoustic equipment of claim 49, wherein:

Said control circuit comprises: sef-adapting filter, be coupled to said interior microphone and said outer microphone, and have a plurality of taps so that the sound of microphone detection in said and the acoustic phase of said outer microphone detection are compared;

In order to carry out said first test, said sef-adapting filter is configured to use the tap of first quantity and operates by first sampling rate; And

In order to carry out said second test, said sef-adapting filter is configured to use the tap of second quantity and operates by second sampling rate.

52. according to the individual acoustic equipment of claim 51, the tap of wherein said second quantity is less than the tap of said first quantity.

53. according to the individual acoustic equipment of claim 51, wherein said second sampling rate is lower than said first sampling rate.

54. according to the individual acoustic equipment of claim 46, wherein:

In order to carry out said first test, said control circuit is configured to:

Operate said acoustic driver to test sound through acoustically output first;

Operate said interior microphone to detect the said first test sound; And

The first test sound that said acoustic driver is exported with acoustically is compared with the first test sound that said interior microphone is detected; Confirming whether said cavity is coupled to the extraneous environment of said housing with acoustically, whether as said at least first receiver is in the indication in the ear position adjacent with the user.

55. according to the individual acoustic equipment of claim 54, wherein said control circuit further is configured to:

56. according to the individual acoustic equipment of claim 54, the frequency of the wherein said first test sound is an infra-acoustic frequency.

57. according to the individual acoustic equipment of claim 54, wherein in order to carry out said second test, said control circuit is configured to:

Operate said acoustic driver to test sound through acoustically output second;

Operate said interior microphone to detect the said second test sound; And

58. according to the individual acoustic equipment of claim 57, other frequency that wherein frequency of the said second test sound is chosen to compare the frequency that comprises the said first test sound is through the less energy of acoustically output needs.

59. according to the individual acoustic equipment of claim 46, wherein:

Said individual acoustic equipment further comprises: motion sensor, be coupled to said control circuit and be deployed on the part of said individual acoustic equipment; And

In order to carry out said second test; Said control circuit is configured to: monitor said motion sensor determining whether to have moved the part of said individual acoustic equipment, whether as said at least first receiver is in the indication in the ear position adjacent with the user.

60. individual acoustic equipment according to claim 46; Wherein said individual acoustic equipment is formed under the situation in the said normal power mode and carries out function, and said function is selected from the group that comprises following content: ANR based on feedforward is provided, provide based on the ANR of feedback, the said individual acoustic equipment of audio frequency, another equipment of signaling that in said cavity, provides with electrical way with acoustically output be in make in said at least first receiver and user's the ear position adjacent and with the audio transmission of the microphone detection of communicating by letter of said individual acoustic equipment to another equipment.

61. according to the individual acoustic equipment of claim 60, wherein said control circuit makes said individual acoustic equipment under said situation of hanging down more deeply in the power mode, stop to carry out said function.

62. according to the individual acoustic equipment of claim 46, wherein said control circuit is configured to:

Carry out said first test under the situation in more shallow low power mode;

In response to from said first the test, said at least first receiver is in user's ear position adjacent in indication, said individual acoustic equipment is in the said normal power mode; And

In response to do not exist the instance of carrying out said first test under the situation of coming in the comfortable said normal power mode, said at least first receiver is in user's ear position adjacent in indication, said individual acoustic equipment is in the said more shallow low power mode.

63. individual acoustic equipment according to claim 62; Wherein said control circuit further is configured to: make said individual acoustic equipment be in the said more shallow low power mode back said individual acoustic equipment of change is carried out function during said normal power mode mode, said function is selected from the group that comprises following content: ANR based on feedforward is provided, provide based on the ANR of feedback, the said individual acoustic equipment of audio frequency, another equipment of signaling that in said cavity, provides with electrical way with acoustically output be in make in said at least first receiver and user's the ear position adjacent and with the audio transmission of the microphone detection of communicating by letter of said individual acoustic equipment to another equipment.

64. a method that is used to control individual acoustic equipment comprises:

Receive signal from least one movable sensor; Wherein with said at least one movable sensor be deployed in be configured on the part of the said individual acoustic equipment of wearing on the user's head so that said at least one movable sensor can be on the user's head so that the housing of said individual acoustic equipment and user's ear detects the rotation of user's head when adjacent to be moved at said individual acoustic equipment, and moving of detecting of wherein said signal indicating;

The characteristic that moves of analyzing said detection is to confirm whether moving of said detection be the rotation of user's head of causing of user and move; And

The rotation of the user's head that causes in response to the mobile user of being who confirms said detection is moved, and confirms that said individual acoustic equipment is on the user's head.

65. the method according to claim 64 further comprises: mobile being determined in response to there is not a detection for predetermined amount of time is that the rotation of user's head of causing of user is moved, and confirms that said individual acoustic equipment is not on the user's head.

66. according to the method for claim 64, wherein:

Said at least one movable sensor comprises gyroscope; And

Reception shows that the signal from said at least one movable sensor that moves of detection comprises the indication that the rotation of the said gyroscope detection of reception is moved.

67. according to the method for claim 66, the characteristic that moves of wherein analyzing said detection comprises: during the predetermined sampling period with the rotation degree that moves of said detection compare with predetermined minimum rotation degree with confirm said detection mobile whether be that the rotation of user's head of causing of user is moved.

68. according to the method for claim 66, wherein:

Whether artificially feasible the characteristic that moves of analyzing said detection comprises: the characteristic that moves of said detection is compared with the predetermined maximum of said characteristic, move to confirm so that the rotation of user's head that the mobile user of being of said detection causes of moving of said detection; And

Said characteristic is selected from the group that comprises following content: mobile acceleration, the change speed that moves the acceleration that centers on said gyrostatic axle rotation of said detection and the mobile repetition rate around said gyrostatic rotation of said detection of rotating around said gyrostatic axle around the speed of said gyrostatic rotation, said detection that move that moves the degree that centers on said gyrostatic axle and rotate, said detection of said detection.

69. according to the method for claim 68, wherein said method further comprises: surpass the predetermined maximum of said characteristic in response to the characteristic that moves of said detection, confirm that immediately said individual acoustic equipment is not on the user's head.

70. according to the method for claim 64, wherein:

Said at least one movable sensor of a part of deploy of the said individual acoustic equipment that is configured on user's head, wear comprises: first accelerometer is deployed in and is configured in the first of the said individual acoustic equipment of wearing on the user's head; And second accelerometer, be deployed in and also be configured on the second portion of the said individual acoustic equipment of wearing on the user's head;

Reception shows that the signal from said at least one movable sensor that moves of said detection comprises: receive first signal from said first accelerometer of first acceleration that shows that said first accelerometer detects, and the secondary signal from said second accelerometer that receives second acceleration that shows that said second accelerometer detects;

Said method further comprises: distinguish differential mode acceleration and common mode acceleration between said first acceleration and said second acceleration; And

The characteristic that moves of analyzing said detection is to confirm whether moving of said detection be the rotation of user's head of causing of user and move and comprise: analyze said differential mode acceleration to confirm whether said differential mode acceleration shows that the rotation of user's head that the user causes moves.

71. according to the method for claim 70, wherein:

Whether artificially feasible the characteristic that moves of analyzing said detection comprises: the characteristic of said differential mode acceleration is compared with the predetermined maximum of said characteristic, move to confirm so that the rotation of user's head that the mobile user of being of said detection causes of moving of said detection; And

Said characteristic is selected from the group that comprises following content: the repetition rate of the size of big differential mode acceleration, the change speed of said differential mode acceleration and said differential mode acceleration.

72. according to the method for claim 71, wherein said method further comprises: surpass the predetermined maximum of said characteristic in response to the characteristic of said differential mode acceleration, confirm that immediately said individual acoustic equipment is not on the user's head.

73. the method according to claim 70 further comprises:

The characteristic of said common mode acceleration is compared with the predetermined maximum of said characteristic, and wherein said characteristic is selected from the group that comprises following content: the change speed of the size of common mode acceleration, common mode acceleration and the repetition rate of common mode acceleration; And

Surpass the predetermined maximum of said characteristic in response to the characteristic of said common mode acceleration, confirm that immediately said individual acoustic equipment is not on the user's head.

74. method according to claim 73; Wherein said method further comprises: the predetermined maximum that does not surpass said characteristic in response to the characteristic of said common mode acceleration; Confirm that immediately said individual acoustic equipment is on the user's head; Wherein said characteristic is the repetition rate of said common mode acceleration, and the repetition rate of said common mode acceleration is the frequency that shows that the human muscle of repetition moves.

75. the method according to claim 70 further comprises:

Draw between said first accelerometer and said second accelerometer towards difference; And

In response to towards difference show it can not is that the adjacent cavity that makes housing of said housing and user's first ear is coupled to the duct of said first ear with acoustically and also can not to be the adjacent cavity that makes said another housing of another housing and user's second ear be coupled to the duct of said second ear with acoustically, confirm that immediately said individual acoustic equipment is not on the user's head.

76. an individual acoustic equipment comprises:

Housing is configured to place adjacently with user's ear;

At least one movable sensor is deployed in and is configured to moving so that said at least one movable sensor can be on the user's head so that said housing and user's ear detects the rotation of user's head when adjacent at said individual acoustic equipment at least a portion of the said individual acoustic equipment of wearing on the user's head;

Control circuit, be coupled to said at least one movable sensor and be configured to:

Reception shows the signal from said at least one movable sensor that moves of detection;

77. individual acoustic equipment according to claim 76; Wherein said control circuit further is configured to: mobile being determined in response to there is not a detection for predetermined amount of time is that the rotation of user's head of causing of user is moved, and confirms that said individual acoustic equipment is not on the user's head.

78. according to the individual acoustic equipment of claim 76, wherein:

Said at least one movable sensor comprises gyroscope; And

The mobile rotation that is said gyroscope detects of said detection is moved.

79. according to the individual acoustic equipment of claim 78, the characteristic that moves that wherein said control circuit is configured to analyze said detection comprises: with said control circuit be configured to during the predetermined sampling period with the rotation degree that moves of said detection compare with predetermined minimum rotation degree with confirm said detection mobile whether be that the rotation of user's head of causing of user is moved.

80. according to the individual acoustic equipment of claim 78, wherein:

Whether artificially feasible the characteristic that moves that said control circuit is configured to analyze said detection comprises: said control circuit is configured to the characteristic that moves of said detection is compared with the predetermined maximum of said characteristic, move to confirm so that the rotation of user's head that the mobile user of being of said detection causes of moving of said detection; And

81. 0 individual acoustic equipment according to Claim 8, wherein said control circuit further is configured to: surpass the predetermined maximum of said characteristic in response to the characteristic that moves of said detection, confirm that immediately said individual acoustic equipment is not on the user's head.

82. according to the individual acoustic equipment of claim 76, wherein:

Said at least one movable sensor of at least a portion deploy of said individual acoustic equipment comprises: first accelerometer is deployed in the first; And second accelerometer, be deployed on the second portion;

Said first and said second portion all are configured on user's head, wear; So that said first accelerometer and said second accelerometer can be on the user's head at said individual acoustic equipment, so that said housing and user's ear detects the acceleration of user's head when adjacent;

Said control circuit is coupled to said at least one movable sensor to be comprised said control circuit is coupled to said first accelerometer and said second accelerometer;

Said control circuit is configured to receive the signal from said at least one movable sensor that moves that shows detection to be comprised: said control circuit is configured to receive the secondary signal from said second accelerometer that first signal and the reception from said first accelerometer that show first acceleration shows second acceleration;

Said control circuit further is configured to: distinguish differential mode acceleration and common mode acceleration between said first acceleration and said second acceleration; And

The characteristic that moves that said control circuit is configured to analyze said detection is to confirm whether moving of said detection be the rotation of user's head of causing of user and move and comprise: the characteristic that said control circuit is configured to analyze said differential mode acceleration is to confirm whether said differential mode acceleration shows that the rotation of user's head that the user causes moves.

83. 2 individual acoustic equipment according to Claim 8, wherein:

The characteristic that said control circuit is configured to analyze said differential mode acceleration comprises: said control circuit is configured to the characteristic of said differential mode acceleration is compared with the predetermined maximum of said characteristic, to confirm whether said differential mode acceleration shows that artificial feasible rotation is moved so that said differential mode acceleration shows the rotation of user's head that the user causes and move; And

Said characteristic is selected from the group that comprises following content: the change speed of the size of said differential mode acceleration, said differential mode acceleration and the repetition rate of said differential mode acceleration.

84. 3 individual acoustic equipment according to Claim 8 wherein further is configured to said control circuit: surpass the predetermined maximum of said characteristic in response to the characteristic of said differential mode acceleration, confirm that immediately said individual acoustic equipment is not on the user's head.

85. 2 individual acoustic equipment according to Claim 8, wherein:

Said control circuit is configured to analyze the characteristic that moves of said detection, to confirm whether moving of said detection be the rotation of user's head of causing of user and move further and comprise: said control circuit is configured to the characteristic of said common mode acceleration is compared with the predetermined maximum of said characteristic;

Said characteristic is selected from the group that comprises following content: the change speed of the size of said common mode acceleration, said common mode acceleration and the repetition rate of said common mode acceleration; And

Said control circuit further is configured to: surpass the predetermined maximum of said characteristic in response to the characteristic of said common mode acceleration, confirm that immediately said individual acoustic equipment is not on the user's head.

86. 5 individual acoustic equipment according to Claim 8; Wherein said control circuit further is configured to: the predetermined maximum that does not surpass said characteristic in response to the characteristic of said common mode acceleration; Confirm that immediately said individual acoustic equipment is on the user's head; Wherein said characteristic is the repetition rate of said common mode acceleration, and the repetition rate of said common mode acceleration is the frequency that shows that human muscle moves.

87. 2 individual acoustic equipment is according to Claim 8 wherein disposed said first accelerometer and said second accelerometer so that when said individual acoustic equipment is on the user's head, place them with respect to user's head asymmetricly around said individual acoustic equipment.

88. a method that is used to control individual acoustic equipment comprises:

Receive first signal from first movable sensor; Wherein said first movable sensor is deployed in and is configured in the first of the said individual acoustic equipment of wearing on the user's head; So that said first movable sensor can be on the user's head at said individual acoustic equipment; So that the housing of said book individual acoustic equipment detects moving of user's head when adjacent with user's ear, and the detection of the said first of said first signal indicating is mobile;

Receive secondary signal from second movable sensor; Wherein said second movable sensor is deployed in and is configured to not on the second portion of the said individual acoustic equipment of wearing on the user's head; So that the reference that is directed against of moving that more said first movable sensor detects to be provided, and said secondary signal shows the moving of detection of said second portion;

Distinguish said first detection move with the detection of said second portion mobile between differential mode move with common mode and move;

Analyze the characteristic that said differential mode moves and move user's head the moving that whether shows that the user causes with respect to said reference to confirm said differential mode; And

Show that in response to confirming that said differential mode moves user's head that the user causes with respect to the moving of said reference, confirms that said individual acoustic equipment is on the user's head.

89. 8 method according to Claim 8 further comprises: show that in response to not existing differential mode to move to be determined user's head that the user causes with respect to being moving of reference, confirms that said individual acoustic equipment is not on the user's head.

90. 8 method according to Claim 8 further comprises:

On reciprocal time interval, analyze said first detection move and the detection of said second portion move with draw between said first movable sensor and said second movable sensor towards difference; And

Between said first movable sensor that employing draws and said second movable sensor towards difference create following this conversion: change through it in said first and the said second portion one detection the indication of moving with the indication of moving of the detection of aiming at said first and said second portion towards in order to other analysis.

91. the method according to claim 90 further comprises: for by in one in said first movable sensor and said second movable sensor towards the instance monitoring conversion of change of the conversion that causes of change mobile to detect.

92. 8 method according to Claim 8, wherein:

Said first movable sensor comprises first gyroscope;

Said second movable sensor comprises second gyroscope;

Reception show said first detection move, comprise reception from said first gyrostatic said first signal from first signal of said first movable sensor, wherein said first signal indicating first detects rotation and moves; And

Reception show said second portion detection move, comprise reception from the said second gyrostatic said secondary signal from the secondary signal of said second movable sensor, wherein said secondary signal shows that second detects rotation and move.

93. method according to claim 92; Wherein analyzing the characteristic that said differential mode moves comprises: the rotation degree that during the predetermined sampling period, said differential mode is moved is compared with predetermined minimum rotation degree, whether shows mobile with respect to said reference of user's head that the user causes to confirm that said differential mode moves.

94. according to the method for claim 92, wherein:

Analyzing the characteristic that said differential mode moves comprises: the characteristic that said differential mode moves is compared with the predetermined maximum of said characteristic, and whether artificial feasible to confirm that said differential mode moves so that said differential mode moves user's head the moving with respect to said reference that shows that the user causes; And

Said characteristic is selected from the group that comprises following content: the repetition rate that the change speed of the rotary acceleration that the rotary acceleration that the rotary speed that the rotation degree that said differential mode moves, said differential mode move, said differential mode move, said differential mode move and said differential mode move.

95. according to the method for claim 94, wherein said method further comprises: the characteristic that moves in response to said differential mode surpasses the predetermined maximum of said characteristic, confirms that immediately said individual acoustic equipment is not on the user's head.

96. 8 method according to Claim 8, wherein:

Said first movable sensor comprises first accelerometer;

Said second movable sensor comprises second accelerometer;

Reception show said first detection move, comprise said first signal of reception, wherein said first signal indicating, first sense acceleration from first signal of said first movable sensor from said first accelerometer;

Reception show said second portion detection move, comprise the said secondary signal of reception from the secondary signal of said second movable sensor from said second accelerometer, wherein said secondary signal shows second sense acceleration; And

Distinguish that differential mode between the moving of detection of said first and said second portion moves and common mode moves and comprises differential mode acceleration and the common mode acceleration of distinguishing between said first sense acceleration and said second sense acceleration.

97. according to the method for claim 96, wherein:

Analyzing the characteristic that said differential mode moves comprises: the characteristic of said differential mode acceleration is compared with the predetermined maximum of said characteristic; To confirm whether said differential mode acceleration shows that artificial feasible user's head moves, so that said differential mode acceleration shows user's head moving with respect to said reference that the user causes; And

98. according to the method for claim 97, wherein said method further comprises: surpass the predetermined maximum of said characteristic in response to the characteristic of said differential mode acceleration, confirm that immediately said individual acoustic equipment is not on the user's head.

99. the method according to claim 96 further comprises:

Analyze the characteristic that said common mode moves through the characteristic of said common mode acceleration is compared with the predetermined maximum of said characteristic, said characteristic is selected from the group that comprises following content: the change speed of the size of said common mode acceleration, said common mode acceleration and the repetition rate of said common mode acceleration; And

100. method according to claim 99; Wherein said method further comprises: the predetermined maximum that does not surpass said characteristic in response to the characteristic of said common mode acceleration; Confirm that immediately said individual acoustic equipment is on the user's head; Wherein said characteristic is the repetition rate of said common mode acceleration, and the repetition rate of said common mode acceleration is the frequency that shows that the human muscle of repetition moves.

101. an individual acoustic equipment comprises:

First housing is configured to place adjacently with user's ear;

Second housing is configured to place away from two ears of user;

First movable sensor; Be deployed in and comprise said first housing and be configured on the part of the said individual acoustic equipment of wearing on the user's head; So that said first movable sensor can be on the user's head at said individual acoustic equipment, so that said first housing and user's ear detects moving of user's head when adjacent;

Second movable sensor is deployed in the mobile reference that is directed against to provide more said first movable sensor to detect on said second housing; And

Control circuit, be coupled to said first movable sensor and said second movable sensor, and be configured to:

Reception show a said part detection move, from first signal of said first movable sensor;

Reception show said second housing detection move, from the secondary signal of said second movable sensor;

Distinguish a said part detection move with the detection of said second housing mobile between differential mode move with common mode and move;

102. individual acoustic equipment according to claim 101; Wherein said control circuit further is configured to: do not show that in response to not existing differential mode to move to be determined user's head that the user causes with respect to the moving of said reference, confirms that said individual acoustic equipment is not on the user's head to predetermined amount of time.

103. the individual acoustic equipment according to claim 101 wherein further is configured to said control circuit:

On reciprocal time interval, analyze the moving of detection and the moving of the detection of said second housing of a said part, with draw between said first movable sensor and said second movable sensor towards difference; And

Between said first movable sensor that employing draws and said second movable sensor towards difference create following this conversion: change in a said part and said second housing indication of moving of one detection through it, with the indication of moving of the detection of aiming at a said part and said second housing towards in order to other analysis.

104. the individual acoustic equipment according to claim 103 wherein further is configured to said control circuit: for by in one in said first movable sensor and said second movable sensor towards the instance monitoring conversion of change of the conversion that causes of change mobile to detect.

105. individual acoustic equipment according to claim 101; Further comprise: connector; Be deployed on said second housing said individual acoustic equipment is coupled to the intercommunicating system of the vehicles, so that said reference comprises the said vehicles when said connector is coupled to said intercommunicating system.

106. the individual acoustic equipment according to claim 105 further comprises: cable, be used to be coupled a said part and said second housing and between a said part and said second housing transmit audio signals.

107. according to the individual acoustic equipment of claim 105, a wherein said part and said second housing are through the wireless link coupling of transmit audio signals between a said part and said second housing.

108. the individual acoustic equipment according to claim 101 further comprises:

Cable has and is coupled to said first and disposes first end of said second housing along it; And

Connector; Second end that is coupled to said cable is to be coupled to said individual acoustic equipment the intercom system of the vehicles, so that said reference comprises the position of said second housing along said length of cable when said connector is coupled to said intercom system.

109. according to the individual acoustic equipment of claim 101, wherein:

Said first movable sensor comprises first gyroscope;

Said second movable sensor comprises second gyroscope;

First of the said part of said first signal indicating detects rotation and moves; And

Said secondary signal shows that second of said second housing detects rotation and moves.

110. individual acoustic equipment according to claim 109; Wherein said control circuit being configured to analyze the characteristic that said differential mode moves comprises: the rotation degree that said control circuit is configured to during the predetermined sampling period, said differential mode is moved is compared with predetermined minimum rotation degree, whether shows mobile with respect to said reference of user's head that the user causes to confirm that said differential mode moves.

111. according to the individual acoustic equipment of claim 109, wherein:

Said control circuit is configured to analyze the characteristic that said differential mode moves to be comprised: the characteristic that said control circuit is configured to said differential mode is moved is compared with the predetermined maximum of said characteristic; Whether show moving of artificial feasible user's head to confirm that said differential mode moves, so that said differential mode moves user's head the moving with respect to said reference that shows that the user causes; And

112. the individual acoustic equipment according to claim 111 wherein further is configured to said control circuit: the characteristic that moves in response to said differential mode surpasses the predetermined maximum of said characteristic, confirms that immediately said individual acoustic equipment is not on the user's head.

113. according to the individual acoustic equipment of claim 101, wherein:

Said first movable sensor comprises first accelerometer;

Said second movable sensor comprises second accelerometer;

First sense acceleration of the said part of said first signal indicating;

Said secondary signal shows second sense acceleration of said second housing; And

Said control circuit is configured to distinguish a said part detection move with the detection of said second housing mobile between differential mode move and common mode moves and comprises: said control circuit is configured to distinguish differential mode acceleration and the common mode acceleration between said first sense acceleration and said second sense acceleration.

114. according to the individual acoustic equipment of claim 113, wherein:

Said control circuit is configured to analyze the characteristic that said differential mode moves to be comprised: said control circuit is configured to the characteristic of said differential mode acceleration is compared with the predetermined maximum of said characteristic; To confirm whether said differential mode acceleration shows moving of artificial feasible user's head, so that said differential mode acceleration shows user's head moving with respect to said reference that the user causes; And

115. individual acoustic equipment according to claim 114; Wherein said control circuit further is configured to: surpass the predetermined maximum of said characteristic in response to the characteristic of said differential mode acceleration, confirm that immediately said individual acoustic equipment is not on the user's head.

116. the individual acoustic equipment according to claim 113 wherein further is configured to said control circuit:

117. individual acoustic equipment according to claim 116; Wherein said control circuit further is configured to: the predetermined maximum that does not surpass said characteristic in response to the characteristic of said common mode acceleration; Confirm that immediately said individual acoustic equipment is on the user's head; Wherein said characteristic is the repetition rate of said common mode acceleration, and the repetition rate of said common mode acceleration is the frequency that shows that the human muscle of repetition moves.

118. the individual acoustic equipment according to claim 101 further comprises: connector, be deployed on said second housing said individual acoustic equipment is coupled to the intercom system of the vehicles, wherein said control circuit further is configured to:

Receive the indication whether said connector is coupled to the intercom system of the vehicles; And

In response to the indication whether said connector is coupled to intercom system, change said control circuit and confirm that said individual acoustic equipment is in the mode on the user's head.