CN102365875B

CN102365875B - Personal acoustic device position determination

Info

Publication number: CN102365875B
Application number: CN201080014210.6A
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: 2014-09-24
Anticipated expiration: 2030-03-29
Also published as: CN102365875A; EP2415276B1; EP2415276A1; WO2010117714A1

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 device position is determined

Technical field

At least one receiver that the disclosure relates to individual acoustic equipment is determined with to this ear with acoustically output sound and/or arrive the ambient sound of this ear with change 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, broadcast or MP3 player) people, simply seek with given environment in do not want maybe can be harmful sound with the people of acoustically isolation 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 ear) to carry out these functions to have become general.The people of the audio frequency providing with electrical way is provided for the individual acoustic equipment that adopts headphone or head-telephone form, for example, by least two audio tracks (stereo audio, with L channel and R channel), provide this audio frequency to become general to output to each ear with acoustically individually by independent receiver.Further, the recent development in Digital Signal Processing (DSP) technology has made it possible to provide like this have and has related to the various forms of a plurality of audio tracks around the audio frequency of sound.For seek simply with do not want maybe can be harmful sound with the people of acoustically isolation, the use by active noise reduction (ANR) technology based on the output of antinoise sound acoustics except passive noise reduction (PNR) technology based on acoustic absorption and/or reflecting material obtains acoustics and isolates and become general.Further, other audio-frequency function combination in ANR and headphone, head-telephone, earphone, earplug and wireless head-telephone (also referred to as " ear's receiver ") has been become to general.

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, user for example, usually uses trouble undesirably individual acoustic equipment being placed on to the individual acoustic equipment assembling of operation nearby or from it removes it of one or two ear or the control (, electric energy switch) if not connecting to individual acoustic equipment conventionally.The trouble essence of the control of individual's acoustic equipment is usually from make the needs of weight and the minimized in size of this individual acoustic equipment by the physical size of this control is minimized.In addition, usually with respect to individual acoustic equipment and/or user, put inconveniently the control of the individual acoustic equipment miscellaneous equipment mutual with it.Further, no matter whether individual acoustic equipment self or individual acoustic equipment another equipment mutual with it carry this control in some modes, user they acoustic equipment be placed on an ear or two ears nearby or when it removes it, forget that this control of operation is all general.

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

Summary of the invention

Apparatus and method, for by analyzing the mode of operation of the receiver of the whole and/or individual acoustic equipment of at least determining individual acoustic equipment by the interior microphone of inside cavity administration of housing and the signal of the outer microphone output of individual acoustic equipment deploy of receiver it is coupled to the mode of environment of the outside of receiver with acoustically.A kind of apparatus and method, for the mode of operation of receiver by testing the whole and/or individual acoustic equipment of determining individual acoustic equipment to determine current operation status, wherein test according to the current power mode of individual acoustic equipment and difference, and wherein during at least one lower power mode, adopt at least one lower power test.A kind of apparatus and method, for show mode of operation movement, determine individual acoustic equipment from the signal of one or more movable sensor of one or more movable sensor detection by receptions, wherein one or more movable sensor is deployed in the part that is configured to the individual acoustic equipment worn on user's head so that one or more movable sensor can be at individual acoustic equipment on the head in user so that the housing of individual acoustic equipment and user's ear detects the in rotary moving of user's head when adjacent.A kind of apparatus and method, for show the signal from the first movable sensor and the second movable sensor of each self-monitoring movement by reception, determine the mode of operation of individual acoustic equipment, wherein the first movable sensor is deployed in the part that is configured to the individual acoustic equipment worn on user's head so that the first movable sensor can be at individual acoustic equipment on the head in user so that the housing of individual acoustic equipment and user's ear detects the in rotary moving of user's head when adjacent, and wherein the second movable sensor is deployed in the part that is configured to the individual acoustic equipment do not worn on 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, to be coupled to the environment in the housing external world of receiver by acoustically; And the mode of operation of the Analysis deterrmination receiver based on interior signal and external signal.

Embodiment can include but not limited to one or more feature in following characteristics.The mode of operation of determining receiver can comprise: determine receiver be in be placed on user ear nearby so that cavity is coupled to acoustically in the mode of operation of duct, or in be not placed on user ear nearby so that cavity is coupled to acoustically in the mode of operation of environment in the housing external world.In analyzing, signal and external signal can comprise: the signal rank of the external signal in the signal rank of the interior signal in the selected scope of frequency is selected to scope with frequency is compared, and the mode of operation of definite receiver can comprise: in response to difference between the selected scope internal/external signal of frequency and the signal rank of interior signal being detected in passing through the maximum difference of difference threshold value setting appointment, determine that receiver is in being placed on the mode of operation nearby of ear at least in part.Method may further include: to external signal apply with the mode of operation nearby in being placed on ear at receiver in time revise the transfer function that the substantially similar mode of the mode of the sound of propagating to cavity from the environment in the housing external world is revised the sound that external signal represents, 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 environment in the housing external world.

In analyzing, signal and external signal can comprise: by drawing the 3rd transfer function that at least shows difference between the first transfer function and the second transfer function, analyze the difference between the first transfer function and the second transfer function, this first transfer function represents that the sound that sends in the acoustic noise source from the environment in the housing external world is along with its interior microphone in from noise source to cavity is propagated and the mode that changes, and this second transfer function represents that sound is along with it is propagated and the mode that changes from the outside microphone of noise source.The mode of operation of determining receiver can comprise: determine that difference between in transfer function one of the 3rd transfer function and the first storage transfer function and the second storage is by the maximum difference of difference threshold value setting appointment, this the first storage transfer function is corresponding to the mode of operation nearby that is placed on ear, this the second storage transfer function is corresponding to the mode of operation nearby that is not placed on user's ear, or can comprise: at least one characteristic of determining the 3rd transfer function is compared the individual features of in the first storage transfer function and the second storage transfer function and more pressed close to another the individual features in the first storage transfer function and the second storage function, this the first storage transfer function is corresponding to the mode of operation nearby that is placed on ear, this the second storage transfer function is corresponding to the mode of operation nearby that is not placed on user's ear.Method may further include: by the acoustic driver being deployed at least in part in cavity, in cavity, with acoustically, export the audio frequency providing with electrical way; The signal rank of monitoring external signal; Draw the 4th transfer function, the 4th transfer function represent acoustic driver with the audio frequency providing 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 characteristic based on analyzing the 4th transfer function is determined the mode of operation of receiver at least in part.Further, according to the signal rank of external signal whether at least meet minimal level setting and the audio frequency that whether provides with electrical way with acoustically output in current forward cavity at least one, determine the difference that the mode of operation of receiver can be based between signal in analyzing and external signal or analyze the characteristic of the 4th transfer function.

Method may further include: be determined to be the change of the mode of operation of receiver; And the integral body of determining individual acoustic equipment has at least changed mode of operation at the head that is placed on user among the mode of operation around or on user's head and the head that the is not placed on user mode of operation around or on user's head.Method may further include: be determined to be the change of the mode of operation of receiver; And take action in response to the change that is determined to be the mode of operation of receiver.Further, the action of taking can be in following content: change provides to the electric energy of a part for individual acoustic equipment; Individual acoustic equipment providing ANR is provided; Another equipment that the indication of the current operation status by least individual acoustic equipment receiver communicates with to individual acoustic equipment signals; The communication mic mute of individual acoustic equipment; And change its course as another acoustic driver of another receiver by individual acoustic equipment and export with acoustically take the audio frequency of acoustically output by the acoustic driver of receiver.

In one aspect, individual acoustic equipment comprises: the first receiver, has the first housing; The first interior microphone, is deployed in the first cavity of the first housing and for exporting the first interior signal of the sound that represents that the first interior microphone detects; The first outer microphone, is deployed on individual acoustic equipment by acoustically, to be coupled to the environment in the first housing external world and for exporting the first external signal of the sound that represents that the first outer microphone detects; And control circuit, be coupled to the first interior microphone and be coupled to the first outer microphone to receive the first interior signal and the first external signal, to analyze the difference between the first interior signal and the first external signal, and the mode of operation based on analyzing difference between the first interior signal and the first external signal and determine the first receiver at least in part.

Embodiment can include but not limited to one or more feature in following characteristics.Control circuit can by least determine receiver be in be placed on user ear nearby so that the first cavity is coupled to acoustically in the mode of operation of duct, or in be not placed on user ear nearby so that the first cavity is coupled to the mode of operation of determining receiver in the mode of operation of environment in the first housing external world with acoustically.The first receiver can be the form of ear-hang on in-ear phone, ear, ear top ear-hang or ear's receiver.Individual's acoustic equipment can be listen to headphone, noise reduction headset, two-way communication head-telephone, earphone, earplug, two-way communication ear receiver, ear's protector, in conjunction with the cap of receiver and in conjunction with the helmet of receiver.Individual's acoustic equipment can joint portion be deployed on individual acoustic equipment to detect the communication microphone of user's sound of voice, or the first outer microphone can be communication microphone.

Individual's acoustic equipment can be further combined with: the second receiver, has the second housing; And the second interior microphone, be deployed in the second cavity of the second housing and for exporting the second interior signal of the sound that represents that the second interior microphone detects.In addition, individual acoustic equipment can be further combined with: the second outer microphone, is deployed on individual acoustic equipment by acoustically, to be coupled to the environment in the second housing external world and for exporting the second external signal of the sound that represents that the second outer microphone detects.Further, control circuit can further be coupled to the second interior microphone and be coupled to the second outer microphone to receive the second interior signal and the second external signal, to analyze the difference between the second interior signal and the second external signal, and the mode of operation based on analyzing difference between the second interior signal and the second external signal and determine the second receiver at least in part.Alternatively, control circuit is further coupled to the second interior microphone to receive the second interior signal, analyze the difference between the second interior signal and the first external signal, and at least in part the analysis based on difference between the second interior signal and the first external signal be placed on user another ear nearby so that the second cavity with acoustically, be coupled to the state of duct and be not placed on user another ear nearby so that the second cavity is coupled to the state of determining the second receiver between the state of environment in the second housing external world with acoustically.

Individual's acoustic equipment can be further combined with: power supply, for electric energy being provided and being coupled to control circuit to the assembly of individual acoustic equipment, the change that wherein control circuit is determined to be the mode of operation of at least the first receiver in response to control circuit signals to change it to power supply to be provided to the electric energy of assembly.Individual's acoustic equipment can be further combined with: ANR circuit, be used for making individual acoustic equipment ANR can be provided and be coupled to control circuit, the change that wherein control circuit is determined to be the mode of operation of at least the first receiver in response to control circuit signals to change its providing ANR to ANR circuit.Individual's acoustic equipment can be further combined with: interface, be used for making individual acoustic equipment and to be coupled to control circuit with another devices communicating, the change operation-interface of mode of operation that wherein control circuit is determined to be at least the first receiver in response to control circuit is with by having occurred that the indication of change of the mode of operation of at least the first receiver signals to another equipment.Individual's acoustic equipment can be further combined with: Audio Controller, be coupled to control circuit, wherein control circuit action to take to select from comprise the set of following content in response to the change operating audio controller of mode of operation that is determined to be at least the first receiver: the audio mute that the communication microphone of individual acoustic equipment is detected, and change its course as the second acoustic driver of the second receiver by individual acoustic equipment and export with acoustically take the audio frequency of acoustically output by the first acoustic driver of the first receiver.

In one aspect, device comprises: the first microphone, is deployed in the first signal that represents the acoustic signal that the first microphone is detected in the cavity of housing of receiver of individual acoustic equipment with detection of acoustic signal and output; Second microphone, is deployed on individual acoustic equipment and with detection of acoustic signal and output, represents the secondary signal of the acoustic signal that second microphone was detected to be coupled to the environment in the housing external world of receiver by acoustically; Sef-adapting filter, in order to filter in first signal and secondary signal, wherein sef-adapting filter regulates filter coefficient according to what select in order to reduce the adaptive algorithm of the signal power of error signal; Difference summer, in order in another from first signal and secondary signal, deduct in first signal and secondary signal described one to draw error signal; Memory, wherein storage represents the predetermined sef-adapting filter parameter of the known state of operation of individual acoustic equipment; And controller, the predetermined sef-adapting filter parameter of storing with memory for the sef-adapting filter parameter that sef-adapting filter is drawn by adaptive algorithm is compared.

Embodiment can include but not limited to one or more feature in following characteristics.The sef-adapting filter parameter that sef-adapting filter draws can be the filter coefficient that sef-adapting filter regulates, or can represent the frequency response of the sef-adapting filter corresponding with the filter coefficient regulating by sef-adapting filter.

In another aspect, for controlling the method for individual acoustic equipment, comprise: first test of at least the first receiver of carrying out individual acoustic equipment whether in the situation that of normal power mode in the adjacent position of the ear with user; The in the situation that of in darker low power mode, carry out whether second test of at least the first receiver in the adjacent position of the ear with user; The in the situation that of at least waiting in darker low power mode, carry out the time interval between the example of the second test; In response to from the second test, the indication of at least the first receiver in the adjacent position of the ear with user, enter normal power mode; And in response in very first time section, do not exist from carry out the first test Multi-instance, the indication of at least the first receiver in the adjacent position of the ear with user, enter darker low power mode.

Embodiment can include but not limited to one or more feature in following characteristics.The first receiver can comprise: housing, is configured to acoustically, be coupled to during in the adjacent position of the ear with user at the first receiver the cavity of duct of user's ear for limiting; Outer microphone, is deployed on housing to be coupled to the environment in the housing external world by acoustically; And interior microphone, be placed in cavity.The first test can comprise: operate outer microphone with the sound in the environment in the detection housing external world; In operation, microphone is with the sound in test chamber; And in the first scope of sound frequency, the sound detecting in the environment in the housing external world is compared with the sound detecting in cavity, to determine that whether cavity is coupled to the duct of user's ear with acoustically, the indication of at least the first receiver in the adjacent position of the ear with user as whether.The first receiver further can comprise: acoustic driver, is placed to acoustically to output sound in cavity; And second test can comprise: operation acoustic driver is tested sound export by acoustically; In operation, microphone is to detect test sound; And the test sound that the test sound that acoustic driver is exported with acoustically is detected with interior microphone is compared, to determine whether cavity is coupled to the environment in the housing external world with acoustically, the indication of at least the first receiver in the adjacent position of the ear with user as whether.

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

The first receiver can comprise: housing, is configured to acoustically, be coupled to during in the adjacent position of the ear with user at the first receiver the cavity of duct of user's ear for limiting; Acoustic driver, is placed to acoustically to output sound in cavity; And interior microphone, be placed in cavity.The first test can comprise: operation acoustic driver is to export the first test sound by acoustically; In operation, microphone is to detect the first test sound; And the first test sound that the first test sound that acoustic driver is exported with acoustically is detected with interior microphone is compared, to determine whether cavity is coupled to the environment in the housing external world with acoustically, the indication of at least the first receiver in the adjacent position of the ear with user as whether.Method may further include: in operation, microphone, with the noise sound in test chamber, comprises the first test sound; Adopt noise sound to draw, to feed back anti-noise sound as feedback reference sound, wherein feed back anti-noise sound and comprise the first test sound; And operation acoustic driver is so that feedback anti-noise sound is outputed in cavity with acoustically, comprises the first test sound.The frequency of the first test sound can be infra-acoustic frequency.The second test can comprise: operation acoustic driver is to export the second test sound by acoustically; In operation, microphone is to detect the second test sound; And the second test sound that the test sound that acoustic driver is exported with acoustically is detected with interior microphone is compared, to determine whether cavity is coupled to the environment in the housing external world with acoustically, the indication of at least the first receiver in the adjacent position of the ear with user as whether.Other frequency that the frequency of the second test sound can be chosen to compare the frequency that comprises the first test sound is exported the less energy of needs by acoustically.

Individual's acoustic equipment can comprise motion sensor, and the second test can comprise: monitoring moving transducer to be to determine whether to have moved a part for individual acoustic equipment, the indication of at least the first receiver in the adjacent position of the ear with user as whether.Method may further include: the in the situation that of in normal power mode, carry out function, this function is selected from the group that comprises following content: ANR based on feedforward is provided, ANR based on feedback is provided, to the audio frequency providing with electrical way with acoustically output in cavity, another equipment of signaling individual acoustic equipment in making the position that at least the first receiver is adjacent with user's ear and the audio transmission of the microphone detection of communicating by letter of individual acoustic equipment to another equipment.Method may further include: the in the situation that of in darker low power mode, stop carrying out function.Method may further include: the in the situation that of in more shallow low power mode, carry out the first test; In response to from the first test, the indication of at least the first receiver in the adjacent position of the ear with user, enter normal power mode; And in response to do not exist in situation about coming in comfortable normal electrical energy pattern, carry out the first test example, the indication of at least the first receiver in the adjacent position of the ear with user, enter more shallow low power mode.Method may further include: after entering more shallow low power mode, the mode of function is carried out in change during normal power mode, and this function is selected from the group that comprises following content: ANR based on feedforward is provided, ANR based on feedback is provided, to the audio frequency providing with electrical way with acoustically output in cavity, another equipment of signaling individual acoustic equipment in making the position that at least the first receiver is adjacent with user's ear 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: the first receiver, comprising: housing, for limiting 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 cavity; And control circuit, be coupled to interior microphone.Control circuit is configured to: the in the situation that of in normal power mode, carry out whether first test of at least the first receiver in the adjacent position of the ear with user; The in the situation that of in darker low power mode, carry out whether second test of at least the first receiver in the adjacent position of the ear with user; The in the situation that of at least waiting in darker low power mode, carry out the time interval between the example of the second test; In response to from the second test, the indication of at least the first receiver in the adjacent position of the ear with user, make individual acoustic equipment in normal power mode; And in response in very first time section, do not exist from carry out the first test Multi-instance, the indication of at least the first receiver in the adjacent position of the ear with user, make individual acoustic equipment in darker low power mode.

Embodiment can include but not limited to one or more feature in following characteristics.The first receiver may further include: outer microphone, is coupled to control circuit and is deployed on housing to be coupled to the environment in the housing external world by acoustically; And in order to carry out the first test, control circuit can be configured to: operate outer microphone with the sound in the environment in the detection housing external world; In operation, microphone is with the sound in test chamber; And in the first scope of sound frequency, the sound detecting in the environment in the housing external world is compared with the sound detecting in cavity, to determine that whether cavity is coupled to the duct of user's ear with acoustically, the indication of at least the first receiver in the adjacent position of the ear with user as whether.The first receiver may further include: acoustic driver, is coupled to control circuit and is placed to acoustically to output sound in cavity; And in order to carry out the second test, control circuit can be configured to: operation acoustic driver is to export test sound by acoustically; In operation, microphone is to detect test sound; And the test sound that the test sound that acoustic driver is exported with acoustically is detected with interior microphone is compared, to determine whether cavity is coupled to the environment in the housing external world with acoustically, the indication of at least the first receiver in the adjacent position of the ear with user as whether.

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

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

Individual's acoustic equipment may further include: motion sensor, is coupled to control circuit and is deployed in a part for individual acoustic equipment; And in order to carry out the second test, control circuit can be configured to: monitoring moving transducer to be to determine whether to have moved a part for individual acoustic equipment to the indication of at least the first receiver in the adjacent position of the ear with user as whether.The in the situation that of can individual acoustic equipment being configured in normal power mode, carry out function, this function is selected from the group that comprises following content: ANR based on feedforward is provided, ANR based on feedback is provided, to the audio frequency providing with electrical way with acoustically output in cavity, another equipment of signaling individual acoustic equipment in making the position that at least the first receiver is adjacent with user's ear 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 individual acoustic equipment stops carrying out function in darker low power mode in the situation that.Control circuit can be configured to: the in the situation that of in more shallow low power mode, carry out the first test; In response to from the first test, the indication of at least the first receiver in the adjacent position of the ear with user, make individual acoustic equipment in normal power mode; And in response to do not exist in situation about coming in comfortable normal electrical energy pattern, carry out the first test example, the indication of at least the first receiver in the adjacent position of the ear with user, make individual acoustic equipment in more shallow low power mode.Control circuit further can be configured to: after making individual acoustic equipment in more shallow low power mode, the individual acoustic equipment of change is carried out the mode of function during normal power mode, this function is selected from the group that comprises following content: the ANR based on feedforward is provided, ANR based on feedback is provided, in cavity, with acoustically, export the audio frequency providing with electrical way, another equipment of signaling individual acoustic equipment is in making the position that at least the first receiver and user's ear is adjacent, and the audio transmission that the communication microphone of individual acoustic equipment is detected is given another equipment.

In another aspect, for controlling the method for individual acoustic equipment, comprise: from least one movable sensor, receive signal, wherein at least one movable sensor is deployed in a part that is configured to the individual acoustic equipment worn on user's head so that at least one movable sensor can be at individual acoustic equipment on the head in user so that the housing of individual acoustic equipment and user's ear detects the in rotary moving of user's head when adjacent, and wherein signal shows the movement detecting; The characteristic of the movement of analyzing and testing is to determine that whether the movement of detection is the in rotary moving of user's head of causing of user; And be the in rotary moving of user's head of causing of user in response to the movement determine detecting, determine on the head of individual acoustic equipment in user.

Embodiment can include but not limited to one or more feature in following characteristics.Method may further include: in response to do not exist the movement of detection to be determined to be the in rotary moving of user's head that user causes for predetermined amount of time, determine that individual acoustic equipment is not on the head in user.

At least one movable sensor can be gyroscope; And the signal from least one movable sensor that receives the movement that shows detection can comprise the indication in rotary moving that receives gyroscope detection.The characteristic of the movement of analyzing and testing can comprise: during the predetermined sampling period, the rotation degree of the movement detecting is compared with predetermined minimum rotation degree to determine that whether the movement of detection is the in rotary moving of user's head of causing of user.The characteristic of the movement of analyzing and testing can comprise: the characteristic of movement and the predetermined maximum of this characteristic that detect are compared, to determine the in rotary moving of the whether artificial feasible so that user's head that the movement of detection is user to be caused of the movement of detection; And this characteristic can be selected from the group that comprises following content: the movement of detection around the degree of gyrostatic axle rotation, the movement of detection around the speed of gyrostatic axle rotation, the movement of detection around the acceleration of gyrostatic axle rotation, the repetition rate of the movement of detection around the change speed of the acceleration of gyrostatic axle rotation and the movement that detects around gyrostatic axle rotation.Method may further include: in response to the characteristic of the movement detecting, surpass the predetermined maximum of this characteristic, determine that immediately individual acoustic equipment is not on the head in user.

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

Further, the characteristic of the movement of analyzing and testing can comprise: the whether artificial feasible so that user's head that the movement detecting is user to be caused of the movement of the characteristic of differential mode acceleration being compared determine detection with the predetermined maximum of this characteristic in rotary moving; 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: in response to the characteristic of differential mode acceleration, surpass the predetermined maximum of this characteristic, determine that immediately individual acoustic equipment is not on the head in user.

Further, method may further include: the characteristic of common mode acceleration is compared with the predetermined maximum of this characteristic, and 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 the predetermined maximum that surpasses this characteristic in response to the characteristic of common mode acceleration, determine that immediately individual acoustic equipment is not on the head in user.Method can further comprise again: the characteristic in response to common mode acceleration does not surpass the predetermined maximum of this characteristic, determine immediately on the head of individual acoustic equipment in user, 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 repetition mankind muscle moves.

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

In another aspect, individual acoustic equipment comprises: housing, is configured to place adjacently with user's ear; At least one movable sensor, be deployed at least a portion that is configured to the individual acoustic equipment worn on user's head so that at least one movable sensor can be at individual acoustic equipment on the head in user so that housing and user's ear detects the in rotary moving of user's head when adjacent; Control circuit, is coupled at least one movable sensor.Further, control circuit is configured to: the signal from least one movable sensor that receives the movement that shows detection; The characteristic of the movement of analyzing and testing is to determine that whether the movement of detection is the in rotary moving of user's head of causing of user; And be the in rotary moving of user's head of causing of user in response to the movement determine detecting, determine on the head of individual acoustic equipment in user.

Embodiment can include but not limited to one or more feature in following characteristics.Control circuit further can be configured to: in response to do not exist the movement of detection to be determined to be the in rotary moving of user's head that user causes for predetermined amount of time, determine that individual acoustic equipment is not on the head in user.

At least one movable sensor can be gyroscope; And the movement detecting can be the in rotary moving of gyroscope detection.The characteristic that control circuit is configured to the movement of analyzing and testing can comprise: control circuit is configured to during the predetermined sampling period, a rotation degree for the movement detecting be compared with predetermined minimum rotation degree, to determine that whether the movement of detection is the in rotary moving of user's head of causing of user.The characteristic that control circuit is configured to the movement of analyzing and testing can comprise: control circuit is configured to the characteristic of movement detecting to compare with the predetermined maximum of this characteristic to determine the in rotary moving of the whether artificial feasible so that user's head that the movement of detection is user to be caused of the movement of detection; And this characteristic can be selected from the group that comprises following content: the movement of detection around the degree of gyrostatic axle rotation, the movement of detection around the speed of gyrostatic axle rotation, the movement of detection around the acceleration of gyrostatic axle rotation, the repetition rate of the movement of detection around the change speed of the acceleration of gyrostatic axle rotation and the movement that detects around gyrostatic axle rotation.Control circuit further can be configured to: in response to the characteristic of the movement detecting, surpass the predetermined maximum of this characteristic, determine that immediately individual acoustic equipment is not on the head in user.

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

Further, the characteristic that control circuit is configured to analyze differential mode acceleration can comprise: control circuit is configured to the characteristic of differential mode acceleration to compare with the predetermined maximum of this characteristic to determine the in rotary moving of user's head that whether differential mode acceleration shows that artificial feasible in rotary moving so that differential mode acceleration shows that 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.Control circuit further can be configured to: in response to the characteristic of differential mode acceleration, surpass the predetermined maximum of this characteristic, determine that immediately individual acoustic equipment is not on the head in user.

Control circuit is configured to the characteristic of movement of analyzing and testing to determine whether the movement of detection is that the in rotary moving of user's head that user causes further can comprise: control circuit is configured to the characteristic of common mode acceleration to compare 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 control circuit further can be configured to: in response to the characteristic of common mode acceleration, surpass the predetermined maximum of this characteristic, determine that immediately individual acoustic equipment is not on the head in user.Control circuit further can be configured to: the characteristic in response to common mode acceleration does not surpass the predetermined maximum of this characteristic, determine immediately on the head of individual acoustic equipment in user, 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 mankind's muscle moves.

Can dispose the first accelerometer and the second accelerometer so that asymmetrically place they with respect to user's head at individual acoustic equipment on the head in user time around individual acoustic equipment.

In another aspect, for controlling the method for individual acoustic equipment, comprise: from the first movable sensor, receive first signal, wherein the first movable sensor is deployed in the first that is configured to the individual acoustic equipment worn on user's head so that the first movable sensor can be at individual acoustic equipment on the head in user so that the housing of individual acoustic equipment and user's ear detects the movement of user's head when adjacent, and wherein first signal shows the movement of the detection of first; From the second movable sensor, receive secondary signal, wherein the second movable sensor be deployed on the second portion that is configured to the individual acoustic equipment do not worn on user's head with what provide that comparison the first movable sensor detects mobile for reference, and wherein secondary signal shows the movement of the detection of second portion; Differential mode between the differentiation movement of detection of first and the movement of the detection of second portion moves with common mode and moves; Analyze characteristic that differential mode moves and whether show that to determine that differential mode moves user's head that user causes is with respect to the movement of reference; And show that in response to determining that differential mode moves user's head that user causes, with respect to the movement of reference, determines on the head of individual acoustic equipment in user.

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

The first movable sensor can be the first gyroscope; The second movable sensor can be the second gyroscope; Reception shows that the first signal from the first movable sensor of movement of the detection of first can comprise and receives from the first gyrostatic first signal, and wherein first signal shows that the first detection is in rotary moving; And the secondary signal from the second movable sensor that receives the movement of the detection show second portion can comprise and receiving from the second gyrostatic secondary signal, wherein secondary signal shows that the second detection is in rotary moving.Analyzing the characteristic that differential mode moves can comprise: the rotation degree during the predetermined sampling period, differential mode being moved compares with predetermined minimum rotation degree to determine that differential mode moves whether shows that user's head that user causes is with respect to the movement of reference.

Further, analyzing the characteristic that differential mode moves can comprise: the characteristic that differential mode is moved compares with the predetermined maximum of this characteristic to determine that whether differential mode moves artificial feasible so that differential mode and move and show that user's head that user causes is with respect to the movement of reference; 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 moving in response to differential mode surpasses the predetermined maximum of this characteristic, determines that immediately individual acoustic equipment is not on the head in user.

The first movable sensor can be the first accelerometer; The second movable sensor can be the second accelerometer; Reception shows that the first signal from the first movable sensor of movement of the detection of first can comprise the first signal receiving from the first accelerometer, and wherein first signal shows the first sense acceleration; Reception shows that the secondary signal from the second movable sensor of movement of the detection of second portion can comprise the secondary signal receiving from the second accelerometer, and wherein secondary signal shows the second sense acceleration; And the differential mode between the movement of the detection of differentiation first and second portion moves and common mode moves differential mode acceleration and the common mode acceleration that can comprise between differentiation the first sense acceleration and the second sense acceleration.

Further, analyzing the characteristic that differential mode moves can comprise: the characteristic of differential mode acceleration is compared with the predetermined maximum of this characteristic determine whether differential mode acceleration shows that artificial feasible user's head moves so that differential mode acceleration shows that user's head that user causes is with respect to the movement of reference; 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: in response to the characteristic of differential mode acceleration, surpass the predetermined maximum of this characteristic, determine that immediately individual acoustic equipment is not on the head in user.

Further, method may further include: by the characteristic of common mode acceleration is compared with the predetermined maximum of this characteristic, analyze the characteristic that common mode moves, 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 the predetermined maximum that surpasses this characteristic in response to the characteristic of common mode acceleration, determine that immediately individual acoustic equipment is not on the head in user.Method may further include: the characteristic in response to common mode acceleration does not surpass the predetermined maximum of this characteristic, determine immediately on the head of individual acoustic equipment in user, 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 repetition mankind muscle moves.

In another aspect, individual acoustic equipment comprises: the first housing, is configured to place adjacently with user's ear; The second housing, is configured to place away from two ears of user; The first movable sensor, be deployed in the part of the individual acoustic equipment that comprises the first housing and be configured to wear on user's head so that the first movable sensor can be at individual acoustic equipment on the head in user so that the first housing and user's ear detects the movement of user's head when adjacent; The second movable sensor, be deployed on the second housing with what provide that comparison the first movable sensor detects mobile for reference; And control circuit, be coupled to the first movable sensor and the second movable sensor.Further control circuit is configured to: the first signal from the first movable sensor that receives the movement of the detection that shows a described part; Reception shows the secondary signal from the second movable sensor of movement of the detection of the second housing; Distinguishing differential mode between the movement of detection of a described part and the movement of the detection of the second housing moves with common mode and moves; Analyze characteristic that differential mode moves and whether show that to determine that differential mode moves user's head that user causes is with respect to the movement of reference; And show that in response to determining that differential mode moves user's head that user causes, with respect to the movement of reference, determines on the head of individual acoustic equipment in user.

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

Control circuit further can be configured to: on reciprocal time interval, analyze the movement of detection of a described part and the movement of the detection of the second housing with draw between the first movable sensor and the second movable sensor towards difference; And adopt between the first movable sensor draw and the second movable sensor towards difference create following this conversion: by it, change in a described part and the second housing one detection movement indication with aim at a described part and the second housing detection movement indication towards preparing against other analysis.In addition, control circuit further can be configured to: in one in the first movable sensor and the second movable sensor towards the example monitoring conversion of change of the conversion that causes of change to detect movement.

Individual's acoustic equipment may further include: connector, is deployed on the second housing individual acoustic equipment is coupled to the intercom system of 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 described part and the second housing are used for being coupled, and between a described part and the second housing transmit audio signals, or a described part and the second housing can be coupled by the wireless link of transmit audio signals between a described part and the second housing.

The first movable sensor can be the first gyroscope; The second movable sensor can be the second gyroscope; It is in rotary moving that first signal can show that first of a described part detects; And secondary signal can show that the second detection of the second housing is in rotary moving.Control circuit is configured to analyze the characteristic that differential mode moves can be comprised: the rotation degree that control circuit is configured to during the predetermined sampling period, differential mode is moved compares with predetermined minimum rotation degree to determine that differential mode moves whether shows that user's head that user causes is with respect to the movement of reference.Control circuit is configured to analyze the characteristic that differential mode moves can be comprised: the characteristic that control circuit is configured to differential mode to move compares with the predetermined maximum of this characteristic to determine that differential mode moves artificial feasible so that differential mode whether and moves and show that user's head that user causes is with respect to the movement of reference; 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, control circuit further can be configured to: the characteristic moving in response to differential mode surpasses the predetermined maximum of this characteristic, determine that immediately individual acoustic equipment is not on the head in user.

The first movable sensor can be the first accelerometer; The second movable sensor can be the second accelerometer; First signal can show the first sense acceleration of a described part; Secondary signal can show the second sense acceleration of the second housing; And control circuit is configured to distinguish differential mode between the movement of detection of described part and the movement of the detection of the second housing moves and common mode moves and can comprise: control circuit is configured to distinguish differential mode acceleration and the common mode acceleration between the first sense acceleration and the second sense acceleration.Control circuit is configured to analyze the characteristic that differential mode moves can be comprised: control circuit is configured to the characteristic of differential mode acceleration to compare with the predetermined maximum of this characteristic to determine whether differential mode acceleration shows that artificial feasible user's head moves so that differential mode acceleration shows that user's head that user causes is with respect to the movement of reference; 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, control circuit further can be configured to: in response to the characteristic of differential mode acceleration, surpass the predetermined maximum of this characteristic, determine that immediately individual acoustic equipment is not on the head in user.

Further, control circuit further can be configured to: by the characteristic of common mode acceleration is compared with the predetermined maximum of this characteristic, analyze the characteristic that common mode moves, 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 the predetermined maximum that surpasses this characteristic in response to the characteristic of common mode acceleration, determine that immediately individual acoustic equipment is not on the head in user.Control circuit further can be configured to: the characteristic in response to common mode acceleration does not surpass the predetermined maximum of this characteristic, determine immediately on the head of individual acoustic equipment in user, 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 repetition mankind muscle moves.

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

Embodiment

Claimed content and disclosed content are intended to can be applicable to various individual acoustic equipments herein; that is, be configured to at least a portion of equipment is placed at least one ear in user's ear 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.Although 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 (also referred to as " ear's receiver ") and ear's protector; but presenting of specific embodiments is intended to promote to understand by example, and should not see the scope that is restricted scope of disclosure or claim covering.

Be intended to the individual acoustic equipment that claimed content and disclosed content can be applicable to provide active noise reduction (ANR), passive noise reduction (PNR) or the combination of the two herein.The acoustics output (comprising so-called " one-way communication ") that claimed herein content and disclosed content can be applicable to two-way communication to be provided, the audio frequency providing with electrical way is only provided being provided or thering is no the output of audio frequency is at all communication audio or individual acoustic equipment otherwise.Being intended to claimed content and disclosed content herein can be applicable to be connected to miscellaneous equipment, by electricity and/or photoconductive cable, be connected to miscellaneous equipment or be not connected to the individual acoustic equipment of any miscellaneous equipment at all with wireless mode.Being intended to claimed content and disclosed content herein can be applicable to physical configuration and is configured to the individual acoustic equipment of wearing at one or two ears of user nearby; include but not limited to have one or two receiver headphone, above-head headphone, neck rear headphone, there is communication microphone head-telephone (for example, remote microphone), wireless head-telephone (ear's receiver), single earphone or earphone to and in order to support the helmet or the cap of the combination receiver of ear protection and/or voice communication.Other embodiment of the individual acoustic equipment that claimed content and disclosed content can be applicable to herein will be obvious to those skilled in the art.

Fig. 1 a and Fig. 1 b provide respectively the block diagram of at least a portion of two feasible embodiments of individual acoustic equipment 1000a and 1000b.As being explained in more detail, the sound that different microphones are detected make toward complex analysis with determine 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 by 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.By determining current operation status and/or by determining whether to exist the change of the mode of operation of one or more receiver, determine current operation status and/or whether have the change of the mode of operation of individual acoustic equipment integral body, wherein the feasible mode of operation of individual acoustic equipment is: the head that the head that 1) is placed on user completely around or on user's head, 2) part is placed on user around or on user's head and 3) the basic not head in user is around or on user's head.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 rustling, the air of blowing over ventilating opening, step, breathing, the clothes with skin friction, flowing water, structure grabbing, animal vocalization etc.For the object of follow-up discussion, the acoustic noise source 9900 of describing in Fig. 1 a and Fig. 1 b represents the source of environment noise sound.

As being explained in more detail, each in individual acoustic equipment 1000a and 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 in individual acoustic equipment 1000a and 1000b.Some physical configuration in these physical configuration of describing in conjunction with single receiver 100 only to take an ear in user's ear, other physical configuration in conjunction with a pair of receiver 100 to take two ears in user's ear.Yet, should be noted that and discuss simply for asking, only describe and describe relevantly with each in Fig. 1 a and Fig. 1 b single receiver 100.Each in individual acoustic equipment 1000a and 1000b be in conjunction with at least one control circuit 2000, the sound that the more different microphones of this at least one control circuit 2000 detect and take any possible action in various possible action in response to integral body and/or the receiver 100 of determining individual acoustic equipment 1000a or 1000b in particular operational state and/or in response to being determined to be the specific change of mode of operation.Fig. 3 a to Fig. 3 f has described the feasible electrical architecture that control circuit 2000 can adopt.

As described in Fig. 1 a, each receiver 100 of individual acoustic equipment 1000a is in conjunction with limiting the housing 110 of at least disposing the cavity 112 of interior microphone 120.Further, housing 110 carries the ear's male part 115 around cavity 112 openings.Path 117 through ear's male part 115, form and with the open communication of cavity 112.In some embodiments, can be by from order to protect microphone 120 to avoid to damage or mode that the angle of aesthetic reason is covered interior microphone 120 is placed on the perforated panel (not shown) with the permeable screen of acoustically, grid or other form near path 117 or is placed on path 117.Housing 110 also carries to be coupled to the mode of the environment in housing 110 external worlds by acoustically the outer microphone 130 being deployed on housing 110.

When receiver 100 is correctly placed on user ear nearby time, make ear's male part 115 of this receiver 100 take the part of user head adjacent with this ear and/or the part of this ear, and path 117 is placed to towards the entrance of going to the duct of 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 user's who takies at ear's male part 115 head and/or the part of ear and ear's male part 115, form acoustic seal at least to a certain degree.This acoustic seal arrives isolation on the cavity 112, path 117 and the duct that are coupled with acoustically now and the environment in housing 110 external worlds and user's head acoustics at least to a certain degree.This makes user's head and/or the part of ear, ear's male part 115 and housing 110 cooperate to provide passive noise reduction to a certain degree (PNR).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 position in housing 110 external worlds at least to a certain degree.

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

Therefore, along with receiver 100 changes mode of operation being placed between and so not the placing of ear nearby, the layout of the interior microphone 120 in cavity 112 makes interior microphone 120 to detect the signal that the sound sending from acoustic noise source 9900 provide the resulting difference in attenuation of reflection along with interior microphone 120.Further, to be coupled to the mode of the environment in housing 110 external worlds by acoustically, to the layout of the outer microphone 130 in housing 110 or on housing 110, make the outer microphone 130 can be in the situation that do not have the change decay that interior microphone 120 runs into detect the same sound from acoustic noise source 9900.Therefore, outer microphone 130 can provide the change that represents the mode of operation by receiver 100 reference signal of unaltered same sound substantially.

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 determine that receiver 100 is in being placed on the mode of operation nearby of ear, or in not being placed on the mode of operation nearby of ear.At individual acoustic equipment 1000a only in conjunction with a receiver 100 in the situation that, it is in head in the being placed on user mode of operation around or on user's head that the mode of operation of determining receiver 100 can be equal to the integral body of determining individual acoustic equipment 1000a, or in the mode of operation in so not placing.Definite control circuit 2000 that makes of the mode of operation whole and/or receiver 100 of 2000 couples of individual acoustic equipment 1000a of control circuit can further determine when the change that has occurred mode of operation.As also will be in greater detail, control circuit 2000 can be taked exercises in response to the change that is determined to be the integral body of individual acoustic equipment 1000a and/or the mode of operation of receiver 100.

Yet, at individual acoustic equipment 1000a in conjunction with two receivers 100 in the situation that, the more complicated of mode of operation that between the signal that in two receivers 100, the outer microphone 130 of each and interior microphone 120 provide, the individual inspiration of difference can make it possible to carry out individual acoustic equipment 1000a integral body determined.In some embodiments, control circuit 2000 can be arranged to determine definite in the mode of operation of the head in being placed on user around or on user's head of causing the integral body of individual acoustic equipment 1000a who at least one in receiver 100 is placed on to ear nearby.In this embodiment, as long as control circuit 2000 continues to determine that in receiver 100 one is in being placed on the mode of operation nearby of ear, to having occurred that change any of another mode of operation in receiver 100 determines, determining in the mode of operation of the head of individual acoustic equipment 1000a in being placed on user around or on user's head will can not be changed.In other embodiments, control circuit 2000 can be arranged to any in receiver 100 to definite in the mode of operation nearby in being placed on ear causes the determining in the mode of operation of the head in not being placed on user around or on user's head to the integral body of individual acoustic equipment 1000a.In other embodiment, only have in two receivers 100 one in conjunction with interior microphone 120 and outer microphone 130, and control circuit 2000 is arranged to determine that whether this receiver 100 causes in the mode of operation nearby in being placed on ear the integral body of individual acoustic equipment 1000a determining in the mode of operation of the head in being placed on user around or on user's head whether.

As described in Fig. 1 b, individual acoustic equipment 1000b and individual acoustic equipment 1000a are substantially similar, but the difference existing is that the receiver 100 of individual acoustic equipment 1000b is extraly at least in conjunction with acoustic driver 190.(and as described in Fig. 1 b) in some embodiments, the mode that partly limits cavity 112 together with the part of housing 110 with at least a portion of acoustic driver 190 is placed on acoustic driver 190 in housing 110.Place this mode of acoustic driver 190 at another cavity 119 of the interior establishment of housing 110, this another cavity 119 separates with cavity 112 by acoustic driver 190.As being explained in more detail, in some embodiments, the audio frequency providing with electrical way that adopts acoustic driver 190 to receive from miscellaneous equipment (not shown) with acoustically output, and/or with the inner sound generating of acoustically output, comprise ANR anti-noise sound.

In some modification, cavity 119 can be coupled to the environment in housing 110 external worlds via one or more acoustical ports (only showing one of them), by they yardstick each acoustical ports be tuned to the audible frequency of selected scope in the mode that can easily recognize by those skilled in the art, by acoustic driver 190, strengthen the characteristic of the acoustics output of sound.In addition, in some modification, one or more tuned port (not shown) can be coupled cavity 112 and 119, and/or cavity 112 can be coupled to the environment in housing 110 external worlds.Although specifically do not describe, but the perforation with the permeable screen of acoustically, grid or other form or fibre structure can be placed in one or more port in this port to prevent that fragment or other pollutant from therefrom passing, and/or so that certain other acoustic impedance of level to be provided.

As also described in Fig. 1 b, individual acoustic equipment 1000b can, by making it possible to carry out two-way communication further combined with the sound nearby of microphone 140 with the mouth by detection user of communicating by letter, further be different from individual acoustic equipment 1000a.Therefore, communication microphone 140 can provide the signal of the sound nearby from user's mouth that represents that communication microphone 140 detects.As will be in greater detail, changed in one or more mode the signal that represents to comprise the sound of communication microphone 140 detections and the various sound of the sound that acoustic driver 190 will be exported with acoustically under the control of control circuit 2000.Although communication microphone 140 is depicted as and is separated from outer microphone 130 and different microphones, also should be noted 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 whole and/or receiver 100 of determining individual acoustic equipment 1000b, all can adopt single microphone.

Due to individual acoustic equipment 1000b individual acoustic equipment 1000a not in conjunction with acoustic driver 190 in the situation that in conjunction with acoustic driver 190, it is feasible that the enforcement of the functional individual acoustic equipment 1000b of ANR is provided.As those skilled in the art will easily recognize, receiver 100 is placed on ear nearby time the previous acoustic seal of describing formation providing of ANR is easier to and more effective.As the environment that cavity 112 and path 117 are coupled to housing 110 external worlds with acoustically being occurred when so not placing receiver 100 reduces the validity based on feedback and the ANR based on 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 detects becomes large than continuing when so not placing receiver 100 nearby time receiver 100 being placed on to ear.Thereby, whether no matter ANR be provided, still can use the Analysis deterrmination of the signal of control circuit 2000 external microphones 130 and interior microphone 120 outputs whether to occur the change of the mode of operation whole and/or receiver 100 of individual acoustic equipment 1000b.

Control circuit 2000 in individual acoustic equipment 1000a and 1000b in any can be taked any action in a large amount of actions in response to the whole and/or single receiver 100 of determining individual acoustic equipment 1000a or 1000b is current in particular operational state and/or in response to the change that is determined to be the mode of operation whole and/or single receiver 100 of individual acoustic equipment 1000a or 1000b.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 receiver 100.Control circuit 2000 is being taked in the support of this action, each in individual acoustic equipment 1000a and 1000b can be further combined with the controlled Audio Controller 3400 of the controlled power supply 3100 of control circuit 2000, control circuit 2000 controlled ANR circuit 3200, control circuit 2000 and one or more in interface 3300.It should be noted that as 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 ANR circuit 3200.Separately describe in further detail elsewhere and describe in order to the signal of the audio frequency that represents ANR anti-noise sound and/or provide with electrical way is sent to acoustic driver 190 so that the interconnection of exporting with acoustically.

In individual acoustic equipment 1000a and 1000b any in conjunction with in order to provide electric energy limited ability power supply 3100 (for example, battery) in situation, control circuit 2000 can be current operation status and/or the change that has occurred mode of operation 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 alternatively, any in individual acoustic equipment 1000a and 1000b is in conjunction with ANR circuit 3200 to provide in the functional situation of ANR, and its providing ANR is connected, turn-offed or if not change to control circuit 2000 similarly signaling ANR circuit 3200.Pass through example, in the situation that individual acoustic equipment 1000b adopts the acoustic driver 190 of each receiver 100 to provide from the acoustics output of the audio frequency of audio-source (not shown) and/or a pair of headphone of ANR, control circuit 2000 can in response to determine the head existed from being placed on user around or user's head to the change of the mode of operation of the individual acoustic equipment 1000b no longer so placing, by reducing or integrally turn-offing to the electric energy of other assembly of individual acoustic equipment 1000b, provide operating power 3100 to save electric energy.Alternatively and/or extraly, control circuit 2000 can be in response to the integral body of determining individual acoustic equipment 1000b for predetermined amount of time at least in the state of the head in not being placed on user around or on user's head, operating power 3100 is to save electric energy.In some modification, control circuit 2000 also can in response to the change of determining the mode of operation there has been individual acoustic equipment 1000b with the head that is again placed on user around or on user's head operating power 3100 with other assembly to individual acoustic equipment 1000b, again provide electric energy.Among other assembly that providing of 3100 pairs of electric energy of power supply can be changed to it, it can be ANR circuit 3200.Alternatively, control circuit 2000 directly signaling ANR circuit 3200 reduce, stop and/or its providing ANR is provided.

In the situation that thereby any in individual acoustic equipment 1000a and 1000b be in conjunction with signaling to control the mutual interface 3300 of carrying out function with this another equipment to another equipment (not shown), 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 that is determined to be mode of operation.Pass through example, at individual acoustic equipment 1000b, from another equipment (be for example to provide, 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 determine the head that existed from being placed on user around or user's head the change operation-interface 3300 to the mode of operation of the individual acoustic equipment 1000b no longer so placing with this another equipment of signaling, suspend by the playback of the record audio of individual acoustic equipment 1000b.In some modification, control circuit 2000 also can in response to determine there is another change of mode of operation so that individual acoustic equipment 1000b is placed on again around user's head or user's head on operation-interface 3300 with another equipment of signaling, recover this playback.Can think that this is user's the convenient feature of expectation, allow at once remove individual acoustic equipment 1000b with the example automatic pause of someone talk with theirs around and recover user's enjoying audio recording from their head in response to user.By another example; another equipment that is intended to produce potential damage sound level with operating period at individual acoustic equipment 1000a (for example; in the situation of a pair of ear protector parts of building, mining or industrial machinery) using together, control circuit 2000 can operation-interface 3300 to signal to miscellaneous equipment in the mode of operation around or on user's head about the whether current head in being placed on user of individual acoustic equipment 1000a.A part that can be used as the security feature of another equipment is carried out this content; wherein if there is no for the mode of operation of individual acoustic equipment 1000a changed into individual acoustic equipment 1000a is placed on to user head around or on user's head and/or in the state of the current head in being placed on user of individual acoustic equipment 1000a around or on user's head so that its receiver 100 can provide the indication receiving from individual acoustic equipment 1000a of protection in the operating period of another equipment to user's hearing, automatically stop the operation of another equipment.

In the situation that any in individual acoustic equipment 1000a and 1000b be in conjunction with revising the Audio Controller 3400 representing with the signal of acoustically output and/or the sound that detects, 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 example, in the situation that individual acoustic equipment 1000b is to provide a pair of headphone from the acoustics output of the audio frequency of another equipment, control circuit 2000 can be in response to determining that in receiver 100 one change and no longer in being placed on the mode of operation nearby of ear, but another in receiver 100 is still (, the state of the head that is arranged in user in part in response to the integral body of determining individual acoustic equipment 1000a or 1000b around or on user's head), signaling Audio Controller 3400 is representing to be redirected in receiver 100 by the signal of sound of acoustic driver 190 acoustics outputs of in receiver 100 another acoustic driver 190.User can think expectation by another in receiver 100 pulled at once away from another ear at once to talk with someone around theirs, come at once the left and right audio track of stereo audio to be all at once directed in the receiver 100 in the mode of operation nearby of ear in being placed on user still whichsoever.By another example, in the situation that individual acoustic equipment 1000b is to support the head-telephone of two-way communication further combined with communication microphone 140, control circuit 2000 can signaling Audio Controller 3400 in response to determining that the whatsoever sound that individual acoustic equipment 1000b does not detect communication microphone 140 in the state of the head in being placed on user around or on user's head is quiet, and with quiet in response to determining that individual acoustic equipment 1000b stops this signal again in the state of so placing.

It should be noted that, in the situation that any in individual acoustic equipment 1000a and 1000b and another equipment to signal to another equipment, control alternately with this another equipment mutual, to receive from another equipment, represent the signal of sound and/or to represent the signal of sound to another device transmission, can adopt to make it possible to carry out any technology in the various technology of 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, or can be via signaling to another equipment in conjunction with being coupled to the electricity of another equipment and/or the cable of optical conductor.Similarly, represent the signal of sound and the exchange of another equipment can adopt various based on cable or wireless technology in any technology.

It should be noted that and the electronic building brick of any in individual acoustic equipment 1000a and 1000b can be deployed in the housing 110 of at least one receiver 100 at least in part.Alternatively, electronic building brick can be deployed at least in part by 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, the housing 110 of at least one receiver 100 can carry other electronic building brick that can be coupled in interior microphone 120, outer microphone 130, communication microphone 140 (in the situation that existing) and/or acoustic driver 190 (in the situation that existing) any, and one or more in control circuit 2000, power supply 3100, ANR circuit 3200, interface 3300 and/or Audio Controller 3400.Further, in thering is the embodiment of more than one receiver 100, can adopt between electronic building brick wired and/or that wireless connections make it possible to dispose among two housings 110 and signal.Again further, although being described and be discussed as, outer microphone 130 is deployed in housing 110, although and can think this outside microphone 130 be also used for expecting in ANR circuit 3200 (in the situation that existing) provides the embodiment of input, it is feasible outer microphone 130 being deployed in individual acoustic equipment 1000a and 1000b in any other parts.

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

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

In physical configuration 1500a, each in receiver 100 can be the ear-hang of " on ear " or " 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 surround to the periphery of the opening in cavity 112 and run through the form of its flexible liner that is formed with the path 117 being communicated with cavity 112 (can be annular).

In the situation that receiver 100 being configured to ear-hang is worn above ear, 115 cooperations of housing 110He ear male part are substantially to surround the auricle of user's ear.Thereby when this modification of the individual acoustic equipment 1000a of correct placement, headband 102 and housing 110 cooperations are to press ear's male part 115 for the part of sidepiece of user's head of surrounding the auricle of ear so that auricle hiding can't see substantially.In the situation that receiver 100 being configured to ear-hang is worn on ear, housing 110He ear male part 115 cooperates to hide the auricle periphery that surrounds the ear's auricle entrance that is associated.Thereby when correct placement, 110 cooperations of headband 102 and housing are with by likely making the visible mode of part of auricle periphery press ear's male part 115 for the periphery of auricle.The flexible material of ear's male part 115 is for surrounding the part of head of auricle or pressing for being coupled with acoustically by path 117Ba ear's duct and cavity 112 of the periphery of auricle, and is used for forming previously discussed acoustic seal so that providing of PNR can be provided.

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

Fig. 2 b also by dotted lines another in receiver 100 so that only combine in conjunction with the another modification of the physical configuration 1500b of in the receiver 100 of communication microphone 140, be feasible.In this another modification, headband 102 still will exist and will continue and wear in user's above-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, or can be deployed at least in part in another housing (not shown).For physical configuration 1500a and the 1500b of Fig. 1 a and Fig. 1 b, can this another housing be merged in headband 102 or merge to and be connected in the multi-form belt of at least one receiver 100 respectively.Further, although each in physical configuration 1500a and 1500b has been provided to be deployed in the outer microphone 130 on each housing 110 of each receiver 100 by providing of each, but the alternative modification of these physical configuration is fine, wherein single outer microphone 130 is deployed in to other places, comprises and be not limited on headband 102 or on frame 142.In thering is receiver 100, in this modification of two, each signal in the signal of the separately interior microphone output in single this outer microphone 130 signals of output and the interior microphone 120 of the independent cavity 112 interior independent deployment of each in two receivers 100 can be compared separately.

Fig. 2 c has described in conjunction with being separately " in ear " physical configuration 1500c in-ear phone form and that can or cannot pass through a pair of receiver 100 of cotton rope and/or electricity or the connection of optics conducting cable (not shown).Yet although specifically do not describe, the alternative modification of physical configuration 1500c can be only in conjunction with one in receiver 100.

As discussed previously, each in 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 substantially shape of the path 117 be communicated with cavity 112.In some embodiments, ear's male part 115 is formed by the material different from housing 110 (can be than forming the more flexible material of material of housing 110 by it), in other embodiments, forms ear's male part 115 with housing 110.

The partial cooperation of ear's male part 115 and/or housing 110 to take user's the duct of ear and/or the part of external ear so that housing 110 can cavity 112 by path 117 and duct with acoustically coupling towards on reside in duct entrance nearby.Thereby, when appropriate placement receiver 100, substantially " clog " go to duct entrance to create previously discussed acoustic seal so that providing of PNR can be provided.

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

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

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

Fig. 3 a to Fig. 3 f has described in individual acoustic equipment 1000a and 1000b the feasible electrical architecture that in any embodiment, control circuit 2000 can adopt.As in the situation at Fig. 1 a-Fig. 1 b, although the feasible embodiment of individual acoustic equipment 1000a and 1000b can have single receiver 100 or a pair of receiver 100, for asking, understand easily and simply relevant with each in Fig. 3 a-Fig. 3 f the electrical architecture of describing and describing to be only associated with a receiver 100.In thering is the embodiment of a pair of receiver 100, between two receivers 100, can copy at least a portion of any electrical architecture in the part of their assemblies and/or relevant with any figure in Fig. 3 a-Fig. 3 f the electrical architecture of discussing 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, with do not describe intentionally less important assembly (for example, microphone preamplifier, audio frequency amplifier, analog to digital converter, digital to analog converter etc.) in the hope of understand easily and clearly the form of some simplification present these electrical architectures.

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

As previously also discussed, with no matter, whether receiver 100 still keeps the mode that is coupled to the environment in housing 110 external worlds with acoustically to carry outer microphone 130 in the mode of operation nearby in being placed on ear to the housing 110 of receiver 100.In other words, even the sound that 9900 outside microphones 130 are propagated from acoustic noise source along with transfer function (same sound along with it from acoustic noise source 9900 inside microphones 120 propagation and stand this transfer function) according to the change of the mode of operation of receiver 100, change, also stand the relatively stable transfer function with relatively stable mode attenuates sound.

In each electrical architecture in these electrical architectures, outside control circuit 2000 adopts in analysis, the signal of microphone 130 and interior microphone 120 outputs determines that receiver 100 is whether in being placed on the mode of operation nearby of ear.The signal that uses 130 outputs of outer microphone as a comparison in microphone 120 outputs signal institute for reference, and analyze difference between these signals that the difference of the transfer function that sound stands in the process of each in microphone 130 and interior microphone 120 outside arrival causes to determine that whether these differences consistent with the receiver of placement like this.

Yet, as being explained in more detail, also can adopt for other object (including but not limited to various forms of based on feedback and the ANR based on feedforward) signal of two or one outputs in outer microphone 130 and/or interior microphone 120.Further, at least some electrical architectures in these electrical architectures, control circuit 2000 can adopt various compensating technique PNR and/or the ANR impact on the detection of sound for interior microphone 120.

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

Interior microphone 120 detects the more feasible attenuated form of the sound sending from the acoustic noise source 9900 of cavity 112 interior existence, and the signal that represents this sound is outputed to controller 950.Outer microphone 130 detects the same sound sending from the acoustic noise source 9900 of the position in cavity 112 external worlds, and the signal that represents this sound is outputed to compensator 310.Compensator 310 receiver 100 be placed on ear nearby time make to stand following transfer function from the signal of outer microphone 130, this transfer function be chosen as in order to the sound by with sending 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 gained change signal subsequently, and controller 950 is analyzed from the signal level difference between interior microphone 120 and the signal of compensator 310 receptions.In the process of the signal analyze receiving, can provide one or more in arranging of difference threshold value setting, stabilisation delay setting and minimal level for controller 950.

In other process of signal level of signal of analyzing two receptions, controller 950 can adopt the filter of band pass filter or other type other analysis of signal level to be restricted to the audible frequency of selected scope.As those skilled in the art will easily recognize, (or a plurality of frequency ranges) of frequency range are chosen in the situation to the various acoustic characteristics of the acoustic seal, path 117 and/or the cavity 112 that form surely, need at least in part to occur the frequency range of ambient noise sound and/or to be wherein easy to detect as mode of operation changing the frequency range that the decay of the sound that enters cavity 112 of result changes based on expection wherein.By example, in the identifying of the achievement in the acoustic energy of many PE noise sound in this frequency range, the scope of frequency can be chosen as to about 100Hz to 500Hz.By another example, 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 the ear of result and frequency range can be chosen as to about 400Hz to 600Hz.Yet, as those skilled in the art will easily recognize, can select other frequency range, can select a plurality of discontinuous frequency ranges, any selection of frequency range can be for 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 controller 950 the signal rank of the signal receiving from compensator and interior microphone 120 in selected frequency range to be detected at it to determine that receiver 100 is in being placed on the mode of operation nearby of ear when similar with degree by the appointment of difference threshold value setting.Otherwise, determine that receiver 100 is not in the mode of operation of so placing.In alternative embodiment, compensator 310 receiver 100 in be not placed on ear nearby time make to stand following transfer function from the signal of outer microphone 130, this transfer function be chosen as in order to the sound by with sending 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.In this alternative embodiment, controller 950 detects the signal rank of the signal receiving from compensator 310 and interior microphone 120 in selected frequency range at it and determines when similar with degree by the appointment of difference threshold value setting and receiver 100 is not placed on to ear nearby.Otherwise, determine that receiver 100 is in being placed on the mode of operation nearby of ear.

In other alternative embodiment, can without undergoing transfer function in the situation that, the signal of outer microphone 130 outputs be offered to controller 950, and contrary, can between interior microphone 120 and controller 950, add and put alternative compensator.This alternative compensator is at receiver 100 in the mode of operation nearby in being placed on ear time, or when receiver is not in the mode of operation in placement like this, will make the signal of interior microphone 120 outputs stand following transfer function, this transfer function be chosen as in order to the sound by with sending from acoustic noise source 9900 along with its arrive in the transfer function that stands of microphone 120 substantially contrary mode change the sound of signal indication.Whether controller 950 determines that with degree by the appointment of difference threshold value setting is similar whether receiver 100 is so placement based on detecting signal rank in selected frequency range subsequently.

Yet, in an alternative embodiment again, in the situation that do not have this change that compensator carries out that the signal of each output in interior microphone 120 and outer microphone 130 is offered to controller 950.In this embodiment, one or more difference threshold value setting can other two differences in various degree of specification signal level, one of them is consistent with the mode of operation nearby of receiver 100 in being placed on ear, and another is consistent with the mode of operation of receiver 100 in so not placing.It is to press close to specify one in difference degree to specify difference degree that controller detects other difference of signal level between the signal of selecting two receptions in frequency range subsequently, or another, to determine whether that receiver is placed on to ear nearby.In determining the process of other similitude degree of signal level between signal, controller 950 can adopt any comparison algorithm in various comparison algorithms.In some embodiments, the difference threshold value setting that offers controller 950 can show the amount of decibel or the difference degree of percentage aspect.

As discussed previously, determine that the integral body of individual acoustic equipment 1000a or 1000b and/or the current operation status of receiver 100 are the steps necessarys that determined whether to occur the change of mode of operation.In other words, controller 2000 is previous in a mode of operation and the whole and/or same current change that is determined to be mode of operation in another mode of operation of receiver 100 of determining subsequently individual acoustic equipment 1000a or 1000b by first determining the integral body of individual acoustic equipment 1000a or 1000b and/or receiver 100.

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

In some embodiments, can also specify selected other minimal level setting of minimum signal level for controller 950 provides, from interior microphone 120 and one or two (whether by certain compensator) in the signal that receives of microphone 130 must meet this selected minimum signal rank to think that these signals are reliable for use in determining whether the receiver 100 to be placed on the process nearby of ear.In the process of the reliability identification of the analysis that this ambient noise sound that can be used for being detected by interior microphone 120 and outer microphone 130 in 950 pairs of existence of controller is carried out, complete.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 determine current operation status, prevents and determined whether to occur the change of individual acoustic equipment 1000a or 1000b's and/or receiver 100 mode of operation and/or prevented and take any action, at least until spendable ambient noise sound is available again.Alternatively 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 making great efforts to use in the process of the location signal that if not microphone 120 and outer microphone 130 are exported in analyzing conventionally.

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

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

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

Alternatively, between interior microphone 120 and controller 950, add in the embodiment of putting alternative compensator, ANR circuit 3200 can to alternative compensator 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.Or alternative compensator can receive the signal that has shown to turn on and off ANR circuit 3200.

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

Interior microphone 120 detects the sound (other sound that can exist together with cavity 112) from being positioned at the more feasible attenuated form of sending in the acoustic noise source 9900 of cavity 112 and the signal that represents this sound is outputed to compensator 210.Compensator 210 also receives and represents that acoustic driver 190 is with the signal of the audio frequency providing with electrical way of acoustically output, and deducts at least in part the audio frequency providing with electrical way the sound detecting from interior microphone 120.Compensator 210 can make to represent that the signal of the audio frequency provide with electrical way stands following transfer function, and this transfer function the substantially similar mode of transfer function that the acoustics output in order to audio frequency acoustics result, that provide with electrical way by with as path 117 and/or cavity 112 stands the process of inside microphone 120 propagation from acoustic driver 190 is provided the audio frequency providing with electrical way is provided.Compensator 210 offers controller 950 gained change signal subsequently, and controller 950 is analyzed from the signal level difference between compensator 210 and 310 signals that receive.

Also the feasible electrical architecture 2500d of spendable control circuit 2000 has been provided in the individual acoustic equipment 1000b of acoustics output that 190 pairs of audio frequency that provide with electrical way of acoustic driver are at least provided except ANR is provided Fig. 3 d.Electrical architecture 2500d and electrical architecture 2500c are substantially similar, but electrical architecture 2500d at least Shortcomings enough ambient noise sound time, other compares to support extraly to use the interior microphone 120 signal ranks of signal of output and the signal level of the audio frequency providing with electrical way of modification, and wherein this ambient noise sound can be used for making it possible to carry out the reliable analysis of difference between interior microphone 120 and the signal of outer microphone 130 outputs under sufficient intensity.In adopting the process of electrical architecture 2500d, control circuit 2000 is together with compensator 210 and 310 and together with controller 950, extraly in conjunction with another compensator 410.

The signal rank of the output of at least outer microphone 130 of controller 950 monitoring, if this signal rank be down to minimal level arrange following, controller 950 prevent and analyze in difference between the signal exported of microphones 120 and outer microphone 130.In this situation, if acoustic driver 190 just the audio frequency providing with electrical way is provided in cavity 112 with acoustically, controller 950 operation compensators 210 are so that any mode that compensator 210 offers controller 950 by compensator 210 according to the signal that makes interior microphone 120 outputs unmodified in the situation that stops revising the signal receiving from interior microphone 120.Compensator 410 receives and represents that acoustic driver 190 is with the signal of the audio frequency providing with electrical way of acoustically output, and the signal that makes to represent the audio frequency provide with electrical way stands following transfer function, this transfer function the substantially similar mode of transfer function that the acoustics output in order to audio frequency acoustics result, that provide with electrical way by with as path 117 and/or cavity 112 stands the process of inside microphone 120 propagation from acoustic driver 190 is provided the audio frequency providing with electrical way is provided.Compensator 210 offers controller 950 gained change signal subsequently, and controller 950 is analyzed from the signal level difference between interior microphone 120 (compensator 210 is unmodified) and the signal of compensator 410 receptions.

As those skilled in the art will easily recognize, the acoustic driver 190 that interior microphone 120 detects is to the intensity of any audio frequency of acoustically output, the situation when cavity 112 and path 117 are coupled to the environment in housing 110 external worlds with acoustically is coupled between the situation of duct different with acoustically from them in cavity 112.To be different from the mode of other analysis of signal level between the signal of interior microphone 120 and outer microphone 130 outputs, can use the integral body of the Analysis deterrmination individual acoustic equipment 1000b of difference between the signal rank of signal of interior microphone 120 and compensator 410 outputs and/or the current operation status of receiver.

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

The more feasible attenuated form of the sound that send in the acoustic noise source 9900 that interior microphone 120 detects existence from cavity 112, and a signal that represents this sound is outputed to and subtracts each other summing junction 910.Outer microphone 130 detects the same sound sending from the acoustic noise source 9900 of the position in cavity 112 external worlds, and the signal that represents this sound is outputed to sef-adapting filter 920.Sef-adapting filter 920 the signal of the filtered version of outer microphone 130 outputs output to from the signal of interior microphone 120 outputs, deduct it subtract each other summing junction 910.Using from then on subtracting each other the signal obtaining, provide back to sef-adapting filter 920 and input as mistake item subsequently.Subtract each other that this interconnection between summing junction 910 and sef-adapting filter 920 makes to subtract each other summing junction 910 and sef-adapting filter 920 can cooperate to draw iteratively following transfer function, the signal by outer microphone 130 outputs of this transfer function change before deducting the signal from interior microphone 120 outputs with a result of subtracting each other is reduced to iteratively press close to as far as possible zero.Sef-adapting filter 920 offers controller 950 the data that characterize the transfer function drawing based on reciprocal.In the process of the signal analyze receiving, can provide difference threshold value setting for controller 950, change one or more in arranging of threshold value setting and minimal level.

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

At interior microphone 120 and outer microphone 130, at the sound that their are detected, convert in the substantially similar embodiment of characteristic in the process of electrical signal, can ascribe the sound of detection to the transfer function H of the conversion of electrical signal ₁and H (s) ₂(s) in, the difference of the part of each can be ignored relatively, and in transfer function H ₃(s) draw in process offset each other effectively.Therefore, outside in the substantially similar situation of the transfer characteristic of microphone 130 and interior microphone 120, the transfer function H drawing ₃(s) along with mistake item approach zero and become equal from the inside microphone 120 in acoustic noise source 9900 and the difference of the transfer function that stands of the sound of each propagation in microphone 130.

As previously also discussed, the transfer function that the sound that inside microphone 120 is propagated from acoustic noise source 9900 stands along with receiver 100 be placed on ear nearby and so between placement, do not change mode of operation and change.Therefore, along with mistake item approaches zero, the transfer function H drawing ₃(s) change that change becomes the transfer function that at least shows that from acoustic noise source sound that 9900 inside microphones 120 are propagated stands.And further, outside in the substantially similar situation of the transfer characteristic of microphone 130 and interior microphone 120, the transfer function H drawing ₃(s) change becomes and equals from acoustic noise source the change of the transfer function that sound that 9900 inside microphones 120 propagate stands.

The data that receive from sef-adapting filter 920 of the transfer function that in some embodiments, controller 950 draws sign are compared with the storage data that characterize the transfer function consistent with the receiver 100 that is placed on any or another mode of operation the mode of operation of the mode of operation nearby of ear and placement like this.In this embodiment, for providing, controller 950 specify the data that receive from sef-adapting filter 920 need to be with the difference threshold value setting of minimum degree like the data class of storage so that controller 950 detects receiver 100 in this mode of operation.The data of the transfer function that in other embodiments, controller 950 draws sign with characterize be placed on ear nearby in the consistent transfer function of receiver 100 storage data and with characterize the transfer function consistent with the receiver 100 of so not placing other store data and all compare.In this other embodiment, controller 950 can be determined the similitude degree that characterizes the storage data of each transfer function in the data of transfer function draw and the consistent transfer function of each mode of operation in the feasible mode of operation of sign and receiver.

In determining the process of the similitude degree between the data item that characterizes transfer function, controller 950 can adopt any comparison algorithm in various comparison algorithms, and the character of type characteristic that can be by the filter that adopts as sef-adapting filter 920 and/or the data that receive from sef-adapting filter 920 determines that it chooses.Pass through example, at sef-adapting filter 920, be in the embodiment of finite impulse response (FIR) (FIR) filter, characterize the transfer function drawing 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 discrete Fourier transform (DFT) (DFT) these coefficients conversions in frequency domain so that can carry out the comparison of mean square deviation (MSE) value set.Further, at sef-adapting filter 920, be in the embodiment of FIR filter, can use the FIR filter that number of taps is relatively little, relatively the coefficient of peanut can be set up the data of the transfer function drawing that characterizes it.This can think to retain electric energy and/or allow the feasible limited calculation resources of controller 2000 to drop into other function desired.

Because adopting iterative process, sef-adapting filter 920 draws transfer function, no matter when occur the change of mode of operation of receiver 100 or another event of the transfer function of the change sound that 9900 inside microphones 120 are propagated from acoustic noise source, sef-adapting filter 920 needs the time again to draw new transfer function.In other words, need the time to allow sef-adapting filter 920 to converge to new solution.Along with this convergence occurs, 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 of change relatively promptly.Therefore, can be for controller 950 provides change threshold value setting, this change threshold value setting is chosen as with so that controller 950 is prevented, to use the Data Detection receiver 100 that receives from sef-adapting filter 920 whether to characterize the data of the transfer function that draw at again thinking until the change speed of the data that receive from sef-adapting filter 920 is down to by changing below the degree of threshold value setting appointment of ear nearby reliable.This that changes threshold value setting provides reply by generating false sound and/or with respect to ear, receiver 100 being moved at once to the error detection example that user's the mode of operation of the receiver that falseness moves or other action causes 100 of the degree of one or two detection in interior microphone 120 and outer microphone 130 changes.This assistance has prevented that mistake that the whole mode of operation of individual acoustic equipment 1000a or 1000b changes is determined 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, from interior microphone 120 and one or two signal demand in the signal that receives of microphone 130 meet this selected minimum signal rank to think that these signals are reliable for use in determining whether the receiver 100 to be placed on the process nearby of ear.In response to Shortcomings enough can be used for interior microphone 120 and/or the detection of 130 pairs of signals of outer microphone and/or the ambient noise sound of generation time situation, controller 950 can be prevented simply and attempts to have determined whether to occur the change of individual acoustic equipment 1000a or 1000b's and/or receiver 100 mode of operation and/or prevent and take any action at least until spendable ambient noise sound is available again.

The alternative embodiment that it should be noted that electrical architecture 2500e is feasible, and its China and foreign countries' microphone 130 offers its output signal to subtract each other summing junction 910, and interior microphone 120 provides output signal to sef-adapting filter 920.In this embodiment, the transfer function drawing will be to be described as by subtracting each other the contrary of transfer function that the cooperation of summing junction 910 and sef-adapting filter 920 draws.Yet the mode of the data that controller 950 employing sef-adapting filters 920 provide is substantially the same.

Although should also be noted that not do not discuss relevantly with electrical architecture 2500e or describe in cavity 112 with the acoustic driver 190 of acoustically output anti-noise sound or the music that provides with electrical way, should be using this as advising that this sound exports the operation that will hinder electrical architecture 2500e to the acoustics in cavity 112.More specifically, still will draw show from the inside microphone 120 in acoustic noise source 9900 and the transfer function of difference of the transfer function that stands of the sound of each propagation in microphone 130, and the current operation status whole and/or receiver 100 of individual acoustic equipment 1000a or 1000b will be still confirmable.

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

The signal of interior microphone 120 outputs is offered and subtracts each other node 930 except offering to subtract each other node 910.Provide and using audio signal that electrical way provides as the input of going to sef-adapting filter 940, and the audio frequency carrying out in order to acoustic driver 190 output.Sef-adapting filter 940 audio signal providing with electrical way of altered form is provided subtract each other summing junction 930, and the audio signal providing with electrical way of this altered form is provided in subtracting each other summing junction 930 from the signal of interior microphone 120 outputs.Using from then on subtracting each other the signal obtaining, provide back to sef-adapting filter 940 and input as mistake item subsequently.With and subtract each other the similar mode of mode between summing junction 910 and sef-adapting filter 920, subtract each other summing junction 930 and sef-adapting filter 940 cooperations to draw iteratively following transfer function, the audio signal providing with electrical way by this transfer function change before deducting the signal from interior microphone 120 outputs is to be reduced to the result of subtracting each other iteratively and to press close to as far as possible zero.Sef-adapting filter 940 offers controller 950 the data that characterize the transfer function drawing based on reciprocal.Controller 950 the same difference threshold value setting providing to controller 950 for using in the process of analyzing the data that sef-adapting filter 920 provides also can be provided in the process of analyzing the data that sef-adapting filter 940 provide, change threshold delay setting and/or minimal level setting.Alternatively, as those skilled in the art will easily recognize, this can think to arrange desired for sef-adapting filter 940 provides these differences in arranging.

By 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, in the situation of the existence ambient noise sound that acoustic noise source 9900 provides), by controller 950, the acoustics that 190 pairs of sound that provide with electrical way of acoustic driver are provided that draws of the transfer function of its analysis and the data characterization that receives from sef-adapting filter 940 is exported.As to those skilled in the art will be clearly, as receiver 100, be placed on the result that changes mode of operation nearby between and so not the placing of ear, the acoustic characteristic of path 117 and cavity 112 is along with they are alternately coupled to duct and are coupled to the environment in housing 110 external worlds and change.In other words, the transfer function that the sound of propagating from the inside microphone of acoustic driver 190 120 stands is along with receiver 100 changes modes of operation and changes, then, also like this by subtracting each other the transfer function that the cooperation of summing junction 930 and sef-adapting filter 940 draws.

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

Any or two data that provide in sef-adapting filter 920 and 940 can be provided controller 950, and can according to various situation Dynamic Selection, one or two changes to use to increase the mode of operation whole and/or receiver 100 of individual acoustic equipment 1000a or 1000b the definite accuracy occurring.In some embodiments, controller 950, according to the audio frequency whether (at least in part) provides with electrical way with acoustically output by acoustic driver 190, switches between one or the other data that provide in adopting sef-adapting filter 920 and 940.In other embodiments, controller 950 carries out this switching based on (at least in part) for the signal rank that drops on minimal level and arrange the signal of one or two output in microphone 120 and outer microphone 130 in the appearance monitoring of one or two signal in these following signals.

Each electrical architecture in the electrical architecture of discussing can adopt simulation or digital circuit or the combination of the two relevantly with Fig. 3 a-Fig. 3 f.In the situation that adopting digital circuit at least in part, this digital circuit can comprise access 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 instruction of one or more signal as what will describe.As also described, this command sequence can so that treatment facility in response to the result of analytic signal, make whether and correctly place in individual acoustic equipment 1000a and 1000b determining of the integral body of one and/or receiver 100.

Interior microphone 120 and outer microphone 130 can each any microphones in microphone of various kinds naturally, include but not limited to electret microphone.Although do not specifically illustrate or discuss, can adopt one or more amplifier module that may be built in interior microphone 120 and/or outer microphone 130 to amplify or if not adjust interior microphone 120 and/or the signal of outer microphone 130 outputs.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.

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

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

As the technical staff that is familiar with ANR will easily recognize, the embodiment based on feedforward and the ANR based on feedback is tended to be limited in the frequency range of the noise sound that can reduce in amplitude by the acoustics output of anti-noise sound.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 the noise sound that occurs at upper frequency is not rare.If in the process of making the comparison between the sound that interior microphone 120 and outer microphone 130 detect or making sound that interior microphone 120 detects and the frequency eliminating adopting in the process of the comparison between the sound of the audio frequency providing with electrical way is provided is being reduced the lower frequency that adopts ANR in the process of ambient noise sound amplitude, as need to be in response to the result of their operation of the input receiving from ANR circuit 3200 change of the 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 adopting in making the process of comparison be more than the frequency decaying by ANR medium audible frequency (for example, 2KHz or 4KHz), can make at controller 950 relatively combine in the situation that between the outer microphone 130 of this frequency and the noise sound of each detection in interior microphone 120 difference of the fixedly expected level of amplitude avoid comprising electrical architecture 2500a-2500d (or its modification) in one or more compensator in one or more.Pass through example, at PNR than outer microphone 130 in the situation that the content of this same noise sound that receiver 100 detects in the position adjacent with ear time the noise sound that interior microphone 120 detects is provided in the reducing of 20dB, controller 950 can determine that receiver 100 does not put in place after the amplitude difference that is substantially less than the noise sound that these two microphones of 20dB detect being detected.This will further reduce power consumption and complexity.

As previously also discussed, can cause making it possible to carry out the scene of the ambient noise sound (at least in some frequencies) that the reliable analysis Shortcomings of the sound difference that interior microphone 120 and outer microphone 130 detect is enough.And can be by changing one or more frequency range (can by widening the frequency range of use) of the ambient noise sound adopting in the process of the difference between the content that microphone 120 and outer microphone 130 detect in analyzing or adopting acoustic driver 190 relatively to make trial to overcome this scene to the sound detecting with sound and the interior microphone 120 of acoustically output in cavity 112 and path 117.

The content that in using, microphone 120 detects and acoustic driver 190 mean that with another modification of difference between the content of acoustically output employing acoustic driver 190 is with in the situation that the frequency range outside in normal human subject hearing also, the narrow frequency range of choosing at the characteristic based on acoustic driver 190 and the acoustics based on path 117 and cavity 112 or frequency are with acoustically output sound, to bring between the receiver 100 of so not placing in the position neutralization adjacent with ear, reliably checkout discrepancy in the amplitude level of this frequency that interior microphone 120 detects.Pass through example, can adopt time acoustic sound (, the sound of frequency below the normal range (NR) of mankind's hearing, as, conventionally the sound below 20Hz), but the reliable Detection of this sound may need with those skilled in the art, the synchronous sound detection technology of being familiar with to be distinguished acoustic driver 190 reliably with inferior acoustic sound of acoustically output and other acoustic sound that may exist.

Fig. 4 is the flow chart of the feasible state machine 500 that in any embodiment, control circuit 2000 can adopt in individual acoustic equipment 1000a and 1000b.As discussed in detail, 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 its possible variant and the state machine 500 that also will discuss.

In 510 beginnings, the integral body of some forms of any in individual acoustic equipment 1000a or 1000b is powered on, can by user manually power on or can by this another apparatus remote communicating with in some modes in individual acoustic equipment 1000a or 1000b power on.After powering on, 520, control circuit 2000 makes the operation in normal power mode (wherein making it possible to carry out one or more function completely by providing of electric weight) of this unique individual's acoustic equipment, as two way voice communication, acoustics based on feedforward and/or the ANR based on feedback, audio frequency are exported, the operation of noisy machinery etc.530, it is in place that control circuit 2000 also repeats to check this unique individual's acoustic equipment (or at least its receiver 100), if in place at 535 these unique individual's acoustic equipments (or at least its receiver 100), in 520 continuation, wherein normally provide the normal power mode of one or more function.In other words, (or at least its receiver 100) is in place as long as this unique individual's acoustic equipment, and control circuit 2000 is just by 520,530 and 535 repetitive cycling in Fig. 4.530, making this mode of checking can mean, whether integral body and/or receiver 100 for the individual acoustic equipment of test be in place, adopt for example, one or more approach in the various approach (the various approach of, describing in Fig. 3 a-Fig. 3 f) that previously discuss in detail.

For determining of making 535, as previously discussed in detail, about whether individual acoustic equipment is in place, makes definite mode and can change, particularly in the situation that there is a pair of receiver 100.Again, by example, if this unique individual's acoustic equipment only has the single receiver in receiver 100, whether control circuit 2000 can be only in place based on single receiver 100 for integral body the determining of making whether in place of unique individual's acoustic equipment.Again, by another example, if this unique individual's acoustic equipment has a pair of receiver 100, whether whether control circuit 2000 can be in place based on any in receiver 100 for the integral body of this unique individual's acoustic equipment determining of making whether in place, or can be in place based on two in receiver 100.As previously also discussed in detail, can revise to carry out one or more function (as, cause audio frequency with acoustically output from receiver 100 to another change its course, interrupts in receiver 100 one ANR (continue provides ANR to another simultaneously) etc. is provided) the process of mode in adopt each separately definite (in the modification of this unique individual's acoustic equipment with a pair of receiver 100) whether in place in receiver 100.Thereby, in the 535 definite essence of determining of making, depend at least in part one or more characteristic in these characteristics.As further discussed in detail, be desirably in and make no longer in place (for example the determining of individual acoustic equipment (or at least its receiver 100), 535) process in adopt to 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 process following example, in this example user may be only receiver 100 pull simply away from their head slightly to reappose it so that comfortable or can be construed as improperly at least receiver 100 other concise and to the point event no longer in place to be contained in the situation that there is no this delay.

If 535, make at least not in place the determining of the receiver 100 of this unique individual's acoustic equipment (if being not the integral body of this certain acoustic equipment), 540, for this, whether be for making and checking more than the situation of the first predetermined amount of time.If not yet surpass this first predetermined amount of time, control circuit 2000 makes at least a portion of this unique individual's acoustic equipment enter more shallow low power mode 545.At this unique individual's acoustic equipment, only have in the situation that 535 determined single receiver 100 not in place, 545, entering more shallow low power mode can mean and stop simply providing one or more function, as, stop by acoustically output audio, stop providing ANR, stop providing two way voice communication, stop in place etc. to this unique individual's acoustic equipment of noisy mechanical part signaling.Pass through example, (can by the wireless coupling between them) be to provide two way voice communication in the situation that individual acoustic equipment and cell phone cooperation, enter more shallow low power mode and can mean that the communication microphone stopping from individual acoustic equipment provides audio frequency to cell phone, and stop exporting by acoustically communication audio and/or the ANR anti-noise sound that cell phone provides.This unique individual's acoustic equipment have a pair of receiver 100 and in the situation that 535 be definitely that in these receivers 100 one is in place and another is not in place, 545, entering more shallow low power mode can be included in the place being simply stopped in receiver not in place 100 one or more function is provided, continue to provide at another place same one or more function simultaneously, or can comprise that one in receiver never in place 100 (is for example moved one or more function to another, the acoustics output of Mobile audio frequency passage, as discussed previously).Alternatively and/or extraly, in the situation that this unique individual's acoustic equipment has in place and another a pair of receiver 100 not in place, 545, enter more shallow low power mode and can comprise and integrally stop providing one or more function, as in the situation that 535 definite be two not in place there will be in receiver 100.

By two in single receiver 100 places or a pair of receiver 100, locate this of one or more function and stop, consuming less electrical energy.Yet, still consume to make it possible to realize performance for determining whether the test of test described above in detail that at least single receiver 100 is in place (as, for an approach in the approach of the detailed description of describing at least one in Fig. 3 a-Fig. 3 f) enough electric energy.Control circuit 2000 continues this unique individual's acoustic equipment to maintain in this more shallow low power mode, simultaneously if 540 do not determine surpassed the first predetermined amount of time and as long as 535 do not determine one in the receiver 100 whole and/or previously not in place of this people's acoustic equipment has been put back in place, just by 530,535,540 and 545 circulations.If determine one in the receiver 100 whole and/or previously not in place of this people's acoustic equipment put back in place 535, control circuit 2000 makes this unique individual's acoustic equipment reenter normal power mode 520, wherein again, at least realize one or more normal function in the normal function that makes to stop providing as the part in more shallow low power mode.Return with cell phone cooperation so that the above example of the individual acoustic equipment of two-way communication to be provided, as user individual acoustic equipment put back in at least one ear adjacent position in to make great efforts to reply the result of the call receiving on cell phone, there will be, make more shallow low power mode reenter normal power mode.In reentering the process of normal power mode, individual acoustic equipment can and cell phone cooperation with in the situation that do not need any on user's operation of cellular telephone or individual acoustic equipment manually can operational controls make it possible to immediately carry out two-way communication and " replying " call automatically between caller and the user of individual acoustic equipment.Will as user, choose answer calls and treat individual acoustic equipment being put back to the user action putting in place in fact.

Yet if determine and surpassed the first predetermined amount of time 540, control circuit 2000 makes this unique individual's acoustic equipment enter darker low power mode 550.The difference of this darker low 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 in some modes.Alternatively and/or extraly, this darker low power mode can be with the difference of more shallow low power mode, although if not (or at least at relatively short interval) carries out this test continuously in the situation that this unique individual's acoustic equipment is in normal power mode or more shallow low power mode, the whichever modification that is only used for determining whether the test that at least single receiver 100 is in place in relatively long interval execution is to retain electric energy.Alternatively and/or extraly, the difference of this darker low power mode and more shallow low power mode can be, with what choose, in order to save the different modification of the test of less electrical energy, replaces or change the whichever modification (can pass through the change of the frequency range of use) for determining whether the test that at least single receiver 100 is in place.

In situation normally, for determining that integral body and/or receiver 100 tests whether in place of unique individual's acoustic equipment comprise the difference of analyzing continuously between the inside and outside microphone 130 of given frequency range and the content of interior microphone 120 detections, the lower electric energy modification of this test can comprise dwindles frequency range simplify to analyze, or frequency range change into choose in order to stopping and/or the scope that stops taking into account of ANR the output of the acoustics of the audio frequency providing with electrical way.The lower electric energy modification of this test can comprise the continuous execution analysis of sound from detecting by microphone sampling continually 130 and interior microphone 120 only change to the reciprocal time interval of choosing and/or only in the reciprocal time interval of choosing by the sound execution analysis of sampling.In the situation that use sef-adapting filter to show that transfer function is as for determining a part for the test whether integral body of unique individual's acoustic equipment and/or receiver 100 be in place, can reduce the quantity of the tap that sef-adapting filter adopts and/or sampling rate as the lower electric energy modification of this test.The lower electric energy modification of this test can comprise: operation acoustic driver 190 is with output sound under the frequency that least energy produces in given amplitude in needing than other sound of choosing, at the reciprocal interval of choosing, so carry out, and along with acoustic driver 190 is exported it with acoustically and carries out relatively between sound and the content of interior microphone 120 detections.

Alternatively, 550, enter into darker low power mode, in order to determine whether that in fact the lower electric energy modification of the test in 560 execution that at least single receiver 100 is in place can be and the whole different test of modification in 530 execution, the irrelevant mechanism of detection that can be based on sound.By example, can and monitor movable sensor (not shown) in the hope of movement indicia to control circuit 2000 couplings, otherwise this movement indicia can be used as the indication that at least single receiver 100 user in place is stayed some positions.Among feasible the choosing of movable sensor, be any MEMS equipment in various MEMS (MEMS (micro electro mechanical system)) equipment, as, in order to sensing, can show the accelerometer of linear acceleration of mobile (with showing that simply terrestrial gravitation is contrary) or the gyroscope moving in order to sensing rotation.

550, enter darker low power mode, in 560 execution, be used for determining whether the lower electric energy modification of the test that at least single receiver 100 is in place.If 565, determining puts back to one in the receiver 100 whole and/or previously not in place of this people's acoustic equipment in place, control circuit 2000 makes this unique individual's acoustic equipment reenter normal power mode 520, wherein again, one or more normal function in the normal function that at least makes it possible to make to stop providing.Yet whether if made 565, the receiver 100 of this unique individual's acoustic equipment at least (if not the integral body of this unique individual's acoustic equipment) is not in place is yet determined, be to make and checking more than the situation of the second predetermined amount of time 570 for this.If not yet surpass this second predetermined amount of time, control circuit 2000 560 again carry out the low electric energy modification of test before in the relatively long time interval of 575 waits.If surpassed this second predetermined amount of time, control circuit 2000 is 580 these unique individual's acoustic equipment power-off.Thereby, control circuit 2000 continues this unique individual's acoustic equipment to maintain in this darker low power mode, simultaneously if 570 do not determine surpassed the second predetermined amount of time and as long as 565 do not determine one in the receiver 100 whole and/or previously not in place of this people's acoustic equipment has been put back in place, just by 560,565,570 and 575 circulations.

Preferably, very first time section is chosen for and holds following example: user before getting back to this unique individual's acoustic equipment put back on the head in them, may be at once receiver 100 move away from ear short moment with to someone talk or the integral body that at once removes this unique individual's acoustic equipment from their head to move to another location to rest or carry out short assignment.This unique individual's acoustic equipment in the more shallow low power mode entering into during the first predetermined amount of time, maintain continuously the test that (or at least at relatively short interval) occur normal modification so that control circuit 2000 can determine fast user when the receiver 100 removing return in ear nearby and/or user when the integral body of this unique individual's acoustic equipment is returned on the head in them.Think that expectation makes it possible to carry out thisly determine so that can reenter fast normal power mode and make the whatsoever normal function that quick-recovery stops by entering into more shallow low power mode soon fast, all for guaranteeing that the minimum providing (if any) interruption of these normal functions is only provided user.Yet, also preferably very first time section is chosen for to the some place that enters into the more shallow low power mode sufficient time of rising over making by since may not user just urgently returning and enters into the larger reservation that electric energy appears in darker low power mode.

In the situation that control circuit 2000 does not implement to be included in 570 for the modification that check, state machine 500 that whether has surpassed the second predetermined amount of time, preferably the second predetermined amount of time is chosen for and holds following example: user may stop using this unique individual's acoustic equipment long enough time to carry out such as the item of attending a meeting, have a meal, grow assignment etc.Be intended in the situation that expect that the whatsoever normal function that stops providing as the result that enters more shallow low power mode and darker low power mode will recover, the second predetermined amount of time will long enough makes the user can be from carrying out that this item is returned and simply this unique individual's acoustic equipment being put back into the head in them.Yet, also preferably be 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 example 560 of low electric energy modification of carrying out test.Think and may have some slow when likely client will understand or receive this unique individual's acoustic equipment to recover these functions intuitively when user has left the long period, but will make these functions in the situation that do not need any manual control of this unique individual's acoustic equipment of client's manual operation so that these functional rehabilitations recover.Also think likely client will understand intuitively or receive leave and the long period will cause this unique individual's acoustic equipment it self power-off so that client need manual operation this manually can operational controls with again this unique individual's acoustic equipment energising, and also can be so that these functional rehabilitations.

The function of carrying out by given individual acoustic equipment is stipulated at least in part and by the expection availability of electric weight, is determined at least in part in the first predetermined amount of time and the second predetermined amount of time the length of each.It has been generally acknowledged that preferably, the first predetermined amount of time continue can with hour as many some minute, with make great efforts conventionally likely to perceive as for user user the content of " short " time period make it not in place after individual acoustic equipment put back in place after, break and from more shallow low power mode, reentering the balance between normal power mode and the reservation of electric energy immediately.Also think conventionally preferably, the second predetermined amount of time continues at least 2 or 3 hours, with make great efforts user need to conventionally likely not perceive as for user rationally the content of " longer " time period make individual acoustic equipment in place after, break the reservation of electric energy and do not need user operate manually can operational controls so that the balance between in reentering normal power mode.Further think that preferably, the second predetermined amount of time is shorter than 8 hours, so that the gained balance of breaking does not cause, the second predetermined amount of time is so long makes individual acoustic equipment whole night in drawer or not power-off after being on desk.In certain embodiments, can provide manually can operational controls or other mechanism so that user can choose in the first predetermined amount of time and the second predetermined amount of time one or two length.Alternatively, control circuit 2000 can be observed user's behavior in time, and can independently draw in the first predetermined amount of time and the second predetermined amount of time one or two length.Alternatively and/or extraly, although expectation avoids making user need to operate manually in the situation that the second predetermined amount of time does not pass can operational controls, but can provide manually can operational controls so that user can make individual acoustic equipment reenter more immediately normal power mode from darker low power mode, particularly between the test that can think 560, in time interval of 575 waits, at least under some situations, for user, waiting for oversize be feasible in the situation that.

In some alternative modification, can be control circuit 2000 the interval of 575 waits along with the integral body from unique individual's acoustic equipment from then on and/or receiver 100 last in place more time and extending in the past.In this alternative modification, at interval, reached the scheduled time some somes during length, control circuit 2000 can so that this unique individual's acoustic equipment it self power-off.

As the comparative analysis of using sound determine the integral body of individual acoustic equipment and/or receiver 100 alternative whether in place or except use the comparative analysis of sound determine the integral body of individual acoustic equipment and/or receiver 100 whether in place, the detection of can also user moving, comprises the movement of user's head.Especially, the part of individual acoustic equipment can be in conjunction with one or more movable sensor, as, one or a pair of accelerometer and/or one or a pair of gyroscope.The technique that in MEMS (MEMS (micro electro mechanical system)), recent development makes it possible to based on adopting in microelectronics industry is carried out small-sized and relatively low relatively low cost multiaxis accelerometer and the gyrostatic manufacture of power consumption.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 sometimes called IMU or Inertial Measurement Unit).As a result of, to comprising, in the individual acoustic equipment of the limited power power supply by such as battery, merge accelerometer and/or gyroscope is just becoming feasible and economical.Also exist the various aspects of the mode that the part about human body moves more and more to study; especially, the machinery of people's mode of the various muscle of voluntary and involuntary use human body in mobile everywhere process and in the process of their head of movement as a part for normal activity.About the frequency of the behavior trend in mobile muscle and this movement and the various restrictions of scope, made large discharge observation.

In employing, merge in individual acoustic equipment when detecting mobile gyroscope and/or accelerometer, and when these observations that adopt about human motion, can detect the movement giving to this individual's acoustic equipment and the user of individual acoustic equipment is caused to this example moving and causes that by some other impacts this example moving distinguishes.For example, in the situation that user advances in the vehicles, the movement that user can be made separates with the turnover zone that the vehicles are made.In this way, although the mobile vehicles will make individual acoustic equipment along with the vehicles move, stand towards and/or the change of acceleration, even but this individual's acoustic equipment is being placed in to the seat of the mobile vehicles or whatsoever in the localities, also can detect more exactly individual acoustic equipment not on the head in user.

Fig. 5 provides that any adds the block diagram of one or more movable sensor in individual acoustic equipment 1000a and 1000b, particularly, to any adds one or more in three axis accelerometer 180a, three axis accelerometer 180b, three-axis gyroscope 170a and three-axis gyroscope 170b in individual acoustic equipment 1000a and 1000b.Again, individual's acoustic equipment (as, in individual acoustic equipment 1000a and 1000b one) in conjunction with in control circuit 2000 at least one and be coupled to one or more in the movable sensor (that is, one or two in one or two in accelerometer 180a and 180b and/or gyroscope 170a and 190b) of at least one control circuit 2000.As being explained in more detail, the movement that this movable sensors of 2000 pairs of control circuits detect make toward complex analysis with determine individual acoustic equipment (as, the current operation status of one or more receiver 100 any in individual acoustic equipment 1000a or 1000b), wherein in receiver 100, the feasible mode of operation of each is: 1) be placed on ear nearby and 2) be not placed on ear nearby.By this, toward complex analysis, also make further the determining of change that whether has occurred one or more mode of operation in receiver 100.By definite current operation status and/or by determining whether to exist the change of one or more mode of operation in receiver 100, determine current operation status and/or whether have the change of the mode of operation of individual acoustic equipment integral body, wherein the feasible mode of operation of individual acoustic equipment is: the head that the head that 1) is placed on user completely around or on user's head, 2) is partly placed on user around or on user's head and 3) be not placed on around user's head or on user's head at all.

Thereby, the movement of control circuit 2000 analyzing and testing, and in response to determining that the integral body of individual acoustic equipment and/or receiver 100, in particular operational state and/or in response to the specific change that is determined to be mode of operation, take any possible action in various possible action.As carrying out a part for these analyses and as being explained in more detail, going back the characteristic of the movement of analyzing and testing and separate with the turnover zone of the detection likely causing by other impact the muscle by user is moved to the movement of the detection likely causing.Making this difference using mobile detection as for determining that individual acoustic equipment basic process whether in place realizes larger accuracy by the restriction that makes it possible to understand mankind's muscle and move and other possible physical restriction.

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

Fig. 6 a has described in conjunction with the modification that is separately the above-head physical configuration 1500a that connects of a pair of receiver 100 of ear-hang form and the headband by being configured to wear in user's above-head 102.Again, each in receiver 100 be the size with respect to common human ear's duct according to them, can be the ear-hang of " on ear " or " ear top " form.As this modification of the physical configuration 1500a being described in Fig. 6 a and difference slightly how to describe it in Fig. 2 a are, along this optional interpolation to the length of the headband 102 of receiver 100 very small shell 105 midway that is coupled.As discussed, can place accelerometer 180b along headband 102, and in the situation that the structure of headband 102 does not provide the sufficient space in order to placement accelerometer 180b like this, can place housing 105 so that requisite space to be provided along headband 102.

When Fig. 6 a is also just wearing with respect to user the individual acoustic equipment that adopts physical configuration 1500a, how the rough approximation of the fulcrum N of user's neck has described receiver 100 and headband 102 to be placed on the rough approximation on user's head.Fulcrum N refers to the rough approximation for position on the human body of the mobile pivotable head with respect to human body remainder.As the technical staff in anthropophysiology field will easily recognize, be important to note that situation about not existing such as the single fulcrum of reality in mankind's neck of the remainder pivotable head with respect to health.In fact, comprise that the entire length of backbone that head is connected to the neck neck portion of trunk set up by the chain link of vertebra.Between each vertebra, be that the vertebra of each phase adjacency pair can pivotable be linked with the flexibility that rotates to the various tissues of limited degree relative to each other.By forming several neck neck bones of neck, in these flexible links of placing between these neck neck bones by phase adjacency pair in neck, the additional effect of several flexible links makes it possible to carry out head with respect to rotation and the pivotable of trunk.Yet, although do not exist head to move the how much single fulcrums that limit of passed through mankind's neck with respect to trunk, this fulcrum can be defined as to head that the geometry of neck do not make it possible to carry out with respect to the pivotable of trunk and rough approximation in rotary moving.The position of some effort of Human Modeling having been advised fulcrum can being approximately to " C3 " neck neck bone in neck (that is the 3rd the neck neck bone that, rise at the top of the vertebra chain of self-forming backbone) in any object in various engineerings, science and other object around or this position.So, for the understanding of follow-up discussion is easy, make in this article similar rough approximation, and use this as describe and choose the basis of the position of fulcrum N in Fig. 6 a.

Fig. 6 a further described the movement will one or more movable sensor (for example, one or two in one or two in accelerometer 180a and 180b and/or gyroscope 170a and 170b) in movable sensor carried out detection and mobile in the coordinate system used towards and axle.As depicted, moving to be backward defined as along X-axis forward, occur, moving right left, be defined as along Y-axis and occur, upwards moving down to be defined as along Z axis, occur.As a result of, left rotation and right rotation is defined as around Z axis and is occurred, upper and lower pivotable is defined as around Y-axis and is occurred, tilting, be defined as around X-axis and occur.Thereby user's head means the rotation of the Z axis (that is, axle Nz) around fulcrum N to the rotation of left or right (that is, can be called " left " or " right translation " mobile content, as, user can see content to the left or to the right) at neck place.Thereby, pivotable user's head in neck place or under (that is, can be called " before being tilted to " or " be tilted to after " mobile content, as, user can see content up or down) mean the rotation of the Y-axis (that is, axle Ny) around fulcrum N.And thereby, pivotable user's head to left or right (, can be called " left bank " or " right bank " mobile content, as, user can see as some things of the drawing hanging on wall or the edge of looking about window to see the content of some outside things in crooked mode) mean the rotation of the X-axis (that is, axle Nx) around fulcrum N.

It should be noted that and spread all over immediately follow-up in question many discussion, suppose to aim at their coordinate system (for example, so that their X, Y and Z axis all equally towards on) the structure of mode at individual acoustic equipment in location the gyroscope 170a and the whichever in 190b and the whichever in accelerometer 180a and 180b that exist.As being explained in more detail, there is the analysis and comparison that this aligning in the coordinate system that a plurality of movable sensors in this movable sensor exist can be simplified the movement of detection greatly.Discussion below will narrate solution cannot suppose the partial memory of same individual acoustic equipment this movable sensor in the analysis and comparison technology of the coordinate system of a plurality of movable sensors situation of aiming at.

The rough approximation of relation between the head that Fig. 6 a has still further described the part of structure that adopts the individual acoustic equipment of physical configuration 1500a can be placed on to user various other A, B around and the axle of C and fulcrum N.Point A and C are roughly corresponding to the position of each two receiver 100 in ear place of user.In the configuration of supposing belt 102, mean on the top at head and wear (, " headband ") and around the rear portion of neck (not, " nape band ") situation under, some B roughly corresponding to the mid point of belt 102 along with it extends and crosses over the position that user's head top of user's head is located thereon between two receivers 100.Although the definite geometry of the neck neck bone of ear and neck, the placement of head is unique to everyone, but fulcrum N is conventionally vertically registered to roughly and can thinks roughly that the Z axis (that is, axle Bz) of axle Nz and some B is the same degree of fully pressing close to some B.Further, can think that the Y-axis (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 axis that this public Y-axis 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 (as, in individual acoustic equipment 1000a or 1000b one) of physical configuration 1500a can be in conjunction with in order to detect the gyroscope 170a of the example that user's end rotation moves.As being familiar with to those skilled in the art, that gyroscope detects is in rotary moving (that is, around axle in rotary moving), but not the movement of axle (that is, along) moved in translation.As the result of gyrostatic this inherent characteristic, the problem of disposing gyroscope 170a around the structure that adopts the individual acoustic equipment of physical configuration 1500a is relatively inessential.Gyrostatic this inherent characteristic also mean near the movement (will tend to show the head of individual acoustic equipment in user) of the detection that gyroscope 170a can likely cause user in a way inherently and the movement of the detection that causes by other impact between distinguish.For example, user for example, in the situation that wear and adopt physical configuration 1500a and in conjunction with the vehicles of the individual acoustic equipment riding movement of gyroscope 170a (, automobile, truck, train, steamer or aircraft) situation under, gyroscope 170a will not detect inherently the common translation of the vehicles and (for example moves, move forward or backward, move up or down, slow down, accelerate, stop, start etc.), but gyroscope 170a will easily detect user's head common in rotary moving (for example, the left or right at fulcrum N place tilts, left or right rotation and/or upper or lower pivotable).The appearance that these examples in rotary moving detected by gyroscope 170a is implying on the head of individual acoustic equipment in user, and this example in rotary moving do not detected by gyroscope 170a on predetermined amount of time, is implying the so placement of individual acoustic equipment.In other words, if this same individual acoustic equipment in conjunction with gyroscope 170a removes and is placed in seat or the storage bin of same mobile traffic from user's head, no longer detect the in rotary moving of user's head that gyroscope 170a previously detected, and can be this in rotary moving as the no longer indication on the head in user of this people's acoustic equipment using not detecting on predetermined amount of time (may some minutes).

Adopt some embodiment of the individual acoustic equipment (as, in individual acoustic equipment 1000a or 1000b one) of physical configuration 1500a can be in conjunction with in order to detect mobile this to accelerometer 180a and 180b.In some embodiment in such an embodiment, accelerometer 180a can be placed on to (that is, at an A place) in receiver 100, and can place accelerometer 180b (that is, at a B place) along belt 102.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-axis along axle Ay and Cy establishment is offset).Thereby, accelerometer 180a is relative with 180b widely spaced and place asymmetrically with respect to user's head.Can think this for guarantee user's head in rotary moving by what bring the direction of acceleration of each detection in accelerometer 180a and 180b and/or size, can checkout discrepancy be preferred, the relative similarly size and Orientation of the acceleration that will more likely cause accelerometer 180a and each detection in 180b is moved in the translation simultaneously more likely causing by other impact.In other words, with a pair of form, adopt accelerometer 180a and 180b so that can carry out difference acceleration sensing, wherein exist and show the similar direction of the movement that causes by the impact except user and big or small acceleration (to thinking, " common mode " acceleration) and think and show the two the sensing of acceleration (that is, " differential mode " acceleration) of difference size that head that user causes moves and/or direction.In other words, preferably accelerometer 180a and 180b are placed to and when user moves their head, stand differential mode and move, and other impact 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 detect accelerometer 180a and 180b the downward pivotable of making progress of head and move (, at the fulcrum N at neck place around axle Ny rotation) as the acceleration along their X-axis (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).The gained centrifugal force that this downward pivotable that makes progress of head of accelerometer 180a and 180b also can be all detecting in their corresponding position 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 although accelerometer 180a and 180b all can detect the acceleration in same direction, they cause each accelerometer these accelerometers to detect these acceleration from the different offset of vertical of fulcrum N having different sizes.As accelerometer 180a, compare accelerometer 180b in the result of less offset of vertical, the acceleration along X-axis and Z axis that accelerometer 180b detects is greater than the situation for accelerometer 180a, and the position of the accelerometer 180a of invocation point A place is pressed close to around its appearance axle Ny that downward pivotable moves that makes progress.

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 (, rotation around axle Nx) as along the acceleration of their Y-axis (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 all the detect head this gained centrifugal force that is tilted to the right mobile left in their corresponding position is as the upwards acceleration along their Z axis.Again, these acceleration that accelerometer detected magnitude is different, the acceleration along Y-axis and Z axis wherein detecting at accelerometer 180b is greater than the situation that accelerometer 180a detects.

Be placed on the even more big-difference that an A and B place cause the acceleration that for example, detects in the situation of (, around axle Nz rotation) in rotary moving to from left to right.Therefore from fulcrum N horizontal-shift and from the some A of axle Nz horizontal-shift, accelerometer 180a can detect this acceleration to from left to right conduct in rotary moving along axle Ax, and the gained centrifugal force that accelerometer 180a also can test point A place is as the acceleration left along axle Ay.Yet at the some B place of the public Z axis along axle Bz and Nz establishment, accelerometer 180b detects (if any) on a small quantity with this to the from left to right mode of acceleration that causes in rotary moving.Thereby accelerometer 180a detects this to the from left to right acceleration causing in rotary moving in the situation that of can't detect (or almost can't detect) at accelerometer 180b.

These differences of the acceleration magnitude that the result that the head carrying out as user than accelerometer 180a and 180b moves detects, the acceleration that these accelerometers that other impact causes detect in size may be relatively similar.Return to the previously discussed example of user in mobile traffic, the movement of the vehicles (for example, move forward or backward, move up or down, slow down, accelerate, stop, starting etc.) may be that translation is moved so that two accelerometers in these accelerometers are experienced in appearance simultaneously, same direction and onesize acceleration.In other words, in the situation that the acceleration that the result that relatively these accelerometers move as the vehicles detects will find that these acceleration are common mode acceleration.Again, this common mode acceleration moves the acceleration causing different (as explained in detail above) from head, will find that it is differential mode acceleration that this head moves the acceleration causing.

Adopt other embodiment of the individual acoustic equipment of physical configuration 1500a can also be in conjunction with a pair of accelerometer 180a and 180b to detect movement, but the placement of these accelerometers can be different so that (each accelerometer in these accelerometers is placed in each in receiver 100, at an A and C place one separately), but not make one in them along belt 102, to place.Can think that these accelerometers this is arranged in some and is difficult to or do not expect be necessary under belt 102 is placed the situation of an accelerometer in these accelerometers.Yet, because two accelerometers will detect the acceleration of very similar size and Orientation, so exist because of the downward pivotable of making progress of head move (that is, around axle Ny rotation) become be difficult to detections so two accelerometers are placed to along the shortcoming of the public Y-axis of axle Ay and Cy establishment.In other words, symmetrical due to the placement of an A and the accelerometer 180a of C place and 180b will make as common mode acceleration but not detection that this downward pivotable that makes progress of differential mode acceleration detection moves respectively.Will need on common mode acceleration compared with complex analyses to attempt determining which more shows that the downward pivotable of making progress of head moves and which more shows the movement causing by other irrelevant impact of the movement with head.

Alternatively, in the situation that be necessary and/or expect each in accelerometer 180a and 180b to be placed in each in receiver 100, can be by asymmetrically these accelerometers being placed on and recapturing the detected differential mode acceleration that this downward pivotable that makes progress causes in receiver 100 in their corresponding receivers.For example, can be in receiver 100 top of housing 110 of one 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, in itself and Fig. 6 a, describe similar, but put A and C from the interior upward displacement of receiver 100 in the end of belt 102 so that one or more in one or more and/or accelerometer 180a and 180b the gyroscope 170a that may exist and 170b is placed in one or two end in the end of belt 102 but not is placed in one or two in receiver 100.In other side, the modification of Fig. 6 a and the physical configuration 1500a describing in Fig. 6 b is substantially similar and at least in mobile context of detection, substantially similarly work.In the situation that to allow receiver 100, with respect to this mode of the end " rotations " of belt 102 or rotation, the end of belt 102 is coupled to receiver 100, can think this placement of one or more movable sensor in this movable sensor of expecting to describe in Fig. 6 b.Can think to assist to guarantee receiver for the comfortable cooperation of user's head part and/or to hold the task that can adopt given individual acoustic equipment unique aspect (as, the acoustic driver that DJ wants the receiver in receiver to turn to this receiver once in a while towards the duct away from an ear towards in, thereby make this ear " free time " to listen to DJ, just play the sound in the room of music) expectation allows this in rotary moving with respect to belt 102 of receiver 100.

The coordinate system that does not affect these movable sensors in the end of belt 102 but not the movable sensor of placing in the rotation modification of receiver 100 makes it possible to relative to each other towards the rotation of carrying out these receivers 100.In other words, in the situation that holding movable transducer in the rotation modification of receiver 100, will due to will be when each one or two rotation feature using in receiver 100 the rotation of coordinates of one or more transducer in this transducer to different towards, so no longer can suppose the coordinate system aligning of this movable sensor.Again, as being explained in more detail, the coordinate system that can depend on movable sensor in lower the individual acoustic equipment of situation that adopts a plurality of movable sensors is aimed at, and has simplified comparison and the analysis of the movement detecting.

But Fig. 6 c has described in the substantially similar receiver 100 of physical configuration 1500a one is combined microphone boom 142 extraly to support communication modification microphone 140, above-head physical configuration 1500b.Use dotted line specifically to describe physical configuration 1500b and there is one or two the feasibility in receiver 100.In addition again, in some modification of physical configuration 1500b, microphone boom 142 can be in order to send 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 the housing 110 of subsequently.If its difference slightly how of describing in this modification of the physical configuration 1500b being described in 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 discussed, accelerometer 180b can be placed on to the end of microphone boom 142, and in the situation that the structure of microphone boom 142 does not provide the sufficient space in order to placement accelerometer 180b like this, this end that housing 145 can be placed on to microphone boom 142 is to provide requisite space.

Adopt some embodiment of the individual acoustic equipment (as, in individual acoustic equipment 1000a or 1000b one) of physical configuration 1500b can be in conjunction with in order to detect the gyroscope 170a of the example that user's end rotation moves.Again, around the structure that adopts the individual acoustic equipment of physical configuration 1500b, dispose the problem of gyroscope 170a relatively inessential.Yet owing to likely there is the interior available space of housing 110 of receiver 100, preferably gyroscope 170a being placed on wherein can be at an A place.

Adopt some embodiment of the individual acoustic equipment (as, in individual acoustic equipment 1000a or 1000b one) of physical configuration 1500b can be in conjunction with in order to detect mobile this to accelerometer 180a and 180b.In some embodiment in such an embodiment, (accelerometer 180a can be placed in receiver 100, at an A place), accelerometer 180b can be placed on to the end (that is, at a D place) of the microphone boom of the mouth of being close to the users most.In the situation that accelerometer 180b is placed on a some D place, accelerometer 180b places to such an extent that to an A, at least some forward, and can further be offset from an A along other axle according to the exact shape of microphone boom 142 and length.Result as this placement, two accelerometers all in the position from fulcrum N offset of vertical (for describing referring back to Fig. 6 a) of the fulcrum N with respect to an A, although and two accelerometers they in varying level direction, be offset, all from fulcrum N horizontal-shift.Thereby, to be different from the mode of the content of the situation in the modification of the physical configuration 1500a describing in Fig. 6 a, in the modification of the physical configuration 1500b describing in Fig. 6 c, accelerometer 180a is relative with 180b widely spaced and place asymmetrically with respect to user's head.Again, can think that this is to guaranteeing that the in rotary moving of user's head is preferred by bringing the direction of the acceleration of each detection in accelerometer 180a and 180b and/or the difference of size, simultaneously by other impact (as, the vehicles move) translation that may cause moves acceleration, the relative similarly size and Orientation that will cause accelerometer 180a and each detection in 180b.

Be placed on an A place, accelerometer 180a can detect the downward pivotable of making progress of head and move at least the acceleration along axle Ax as some A place, and also can detect the gained centrifugal force along axle Az.Be placed on a D place, accelerometer 180b because a D is with respect to the placing more forward an of A, moves and can detect this downward pivotable that makes progress at least in part, as component along the acceleration of two in axle Dz and Dx.Accelerometer 180b also can detect the gained centrifugal force along same two axles.Thereby the accelerometer 180a and the 180b that place respectively by an A and D place, exist this downward pivotable that makes progress to move the difference of direction and the big or small possible difference of this acceleration of the acceleration of the detection causing.

Be placed on an A and D place, in two accelerometer 180a and 180b, can detect the movement that is tilted to the right of head left, as the acceleration along their Y-axis (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 all detect this gained centrifugal force that is tilted to the right mobile left of head in their corresponding position, respectively as the upwards acceleration along axle Az and axle Dz.By these different location of these accelerometers, will be different along the acceleration of the detection of their Y-axis and Z axis.

Be placed on an A place, accelerometer 180a can detect the in rotary moving to from left to right of head, at least as putting the acceleration of 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 this in rotary moving to from left to right, at least as the acceleration along axle Dy, and also can detect the gained centrifugal force along axle Dx.Thereby, there is the difference of direction and the big or small possible difference of this acceleration of this acceleration to the from left to right detection causing in rotary moving.

That Fig. 6 d has described is substantially similar from the modification of the physical configuration 1500b describing in Fig. 6 c, but with being intended in the level height of about neck and the base portion connection of head around the different belts 103 at neck rear portion (, " nape band ") replace the physical configuration 1500e of the belt 102 (that is, headband) on the head be intended to be positioned at user.Again, in some modification of physical configuration 1500e, microphone boom 142 can be in order to the hollow pipeline to being placed on subsequently in the receiver 100 of attached microphone boom 142 communication microphone 140 in the housing 110 of and sending back sound of voice.As discussed, can or place accelerometer 180b along belt 103 at the end of microphone boom 142, in the situation that the structure of belt 103 or microphone boom 142 does not provide the sufficient space in order to placement accelerometer 180b like this, housing 145 can be placed on to this end of microphone boom 142 or can place housing 105 along belt 103, so that requisite space to be provided.

The individual acoustic equipment of employing physical configuration 1500e (as, in individual acoustic equipment 1000a or 1000b one) some embodiment can be in conjunction with in order to detect the gyroscope 170a of the example that user's end rotation moves, again, around the structure that adopts the individual acoustic equipment of physical configuration 1500b, dispose the problem of gyroscope 170a relatively inessential.Yet owing to likely there is the interior available space of housing 110 of receiver 100, preferably gyroscope 170a being placed on wherein can be at an A place.

Adopt some embodiment of the individual acoustic equipment (as, in individual acoustic equipment 1000a or 1000b one) of physical configuration 1500e can be in conjunction with in order to detect mobile this to accelerometer 180a and 180b.In some embodiment in such an embodiment, accelerometer 180a can be placed on to (that is, at an A place) in receiver 100, and can place accelerometer 180b (that is, at an E place) midway along belt 103.An accelerometer 180b who places by some E place, accelerometer 180b places to such an extent that to an A, at least some forward, and can further be offset from an A along other axle according to the exact shape of belt 103 and length.Result as this placement, two accelerometers in the position from fulcrum N offset of vertical (for describing referring back to Fig. 6 a) of the fulcrum N with respect to an A, although they are offset two accelerometers in varying level direction, also from fulcrum N horizontal-shift.Thereby, accelerometer 180a is relative with 180b widely spaced and place asymmetrically with respect to user's head, can think this to guarantee user's head in rotary moving by bringing the direction of acceleration and/or the difference of size of each detection in accelerometer 180a and 180b, be preferred, the relative similarly size and Orientation of the acceleration that will cause accelerometer 180a and each detection in 180b is moved in the translation that simultaneously may cause by other impact.

Be placed on an A place, accelerometer 180a can detect the downward pivotable of making progress of head and move, and at least as putting the acceleration of A place along axle Ax, and also can detect the gained centrifugal force along axle Az.Be placed on an E place, accelerometer 180b because an E is with respect to the placing more backward an of A, moves and can detect this downward pivotable that makes progress at least in part, 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, in the situation that accelerometer 180a and 180b are placed on respectively an A and E place, exist this downward pivotable that makes progress to move the difference of size and Orientation of the acceleration of the detection causing.

Be placed on an A and E place, the two can detect the movement that is tilted to the right of head left accelerometer 180a and 180b, as the acceleration along their Y-axis (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 all detect this gained centrifugal force that is tilted to the right mobile left of head in their corresponding position, respectively as the upwards acceleration along axle Ez and axle Ez.By these diverse locations of these accelerometers, will be different along the acceleration of the detection of their Y-axis and Z axis.

Be placed on an A place, accelerometer 180a can detect the in rotary moving to from left to right of head, at least as putting the acceleration of 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 this in rotary moving to from left to right, at least as the acceleration along axle Ey, and also can detect the gained centrifugal force along axle Ex.Thereby, there is the difference of the size and Orientation of this acceleration to the from left to right detection causing in rotary moving.

Fig. 6 e has described in conjunction with the modification of " ear in " physical configuration 1500c that is separately a pair of receiver 100 of in-ear phone form.Use dotted line specifically to describe physical configuration 1500c and there is one or two the feasibility in receiver 100.

Adopt some embodiment of the individual acoustic equipment (as, in individual acoustic equipment 1000a or 1000b one) of physical configuration 1500c can be in conjunction with in order to detect the gyroscope 170a of the example that user's end rotation moves.Again, around the structure that adopts the individual acoustic equipment of physical configuration 1500c, dispose the problem of gyroscope 170a relatively inessential.Yet not having coupling in the situation that given can be similar structures or the belt of the content of a pair of receiver 100, possibly gyroscope 170a is placed in receiver 100 in the housing 110 of.

Adopt some embodiment of the individual acoustic equipment (as, in individual acoustic equipment 1000a or 1000b one) of physical configuration 1500c can be in conjunction with in order to detect mobile this to accelerometer 180a and 180b.In such an embodiment, between being placed to, accelerometer 180a and 180b have the predictability of some distances to make preferably each in accelerometer 180a and 180b be deployed in each in a pair of receiver 100.Thereby in the situation that using this to accelerometer 180a and 180b (but not gyroscope 170a), this modification of physical configuration 1500c is preferably in conjunction with a pair of receiver 100, but not single in receiver 100 just.By the accelerometer 180a and the 180b that distribute among a pair of receiver 100 in this way, accelerometer 180a and each in 180b move the acceleration causing gained ability in order to detect the head of above-mentioned different possible form becomes with respectively accelerometer 180a and 180b to be placed in the above-mentioned modification of physical configuration 1500a at an A and C place to (with reference to Fig. 6 a and Fig. 6 b) more the same.Unfortunately, this also can detect the head same difficulty of downward pivotable in moving that make progress as previous bringing of being discussed with reference to those modification mid point A of physical configuration 1500a and the placement of these two accelerometers of C place.

Fig. 6 f described in receiver 100 one be additionally in conjunction with microphone boom 142 to support the modification of physical configuration 1500d in the ear of monaural head-telephone (sometimes also referred to as " ear's receiver ") form of communication microphone 140.Again, the alternative modification of physical configuration 1500d is feasible, wherein by pipeline (not shown), the sound nearby from user's mouth is sent to communication microphone 140, or wherein with communication microphone, towards the mode of user's mouth, communication microphone 140 is deployed on housing 110.In addition again, the receiver of describing 100 of physical configuration 1500d that has a communication microphone 140 can maybe cannot be attended by another receiver 100 (as with as indicated in this another receiver 100 of dotted lines).As this modification of the physical configuration 1500d being described in Fig. 6 f and difference slightly how to describe it in Fig. 2 d are, the very optional interpolation of small shell 145 of the end of user's mouth microphone boom 142 nearby.The above-mentioned modification that is not 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.In the situation that the structure of microphone boom 142 does not provide the sufficient space in order to placement accelerometer 180b like this, this end that housing 145 can be placed on to microphone boom 142 is to provide requisite space.

Adopt some embodiment of the individual acoustic equipment (as, in individual acoustic equipment 1000a or 1000b one) of physical configuration 1500d can be in conjunction with in order to detect the gyroscope 170a of the example that user's end rotation moves.Again, around the structure that adopts the individual acoustic equipment of physical configuration 1500d, dispose the problem of gyroscope 170a relatively inessential.Yet not having coupling in the situation that given can be similar structures or the belt of the content of a pair of receiver 100, possibly gyroscope 170a is placed in receiver 100 in the housing 110 of.

Adopt some embodiment of the individual acoustic equipment (as, in individual acoustic equipment 1000a or 1000b one) of physical configuration 1500d can be in conjunction with in order to detect mobile this to accelerometer 180a and 180b.Microphone boom 142 (or whatsoever other structure can be supported the microphone 140 of communicating by letter) make in receiver 100 single can in the situation that between them, distance is enough in the situation that in conjunction with accelerometer 180a and 180b the two so that can carry out previously described difference acceleration sensing, think preferably to make accelerometer 180a and 180b the two is attached in single in receiver 100.In the situation that the receiver 100 of given this form will likely at least some extends to take ear and communication microphone 140 is placed to such an extent that relatively press close to mouth, be likely will accelerometer 180a be placed to such an extent that press close to ear and accelerometer 180b is placed to such an extent that press close to mouth.At accelerometer 180a and 180b, in this way in the situation that distribute among the part of single receiver 100, accelerometer 180a and each in 180b move the acceleration causing gained ability in order to detect the head of above-mentioned different possible form becomes with respectively accelerometer 180a and 180b to be placed in the above-mentioned modification of physical configuration 1500b at an A and D place to (with reference to Fig. 6 c) more the same.

Fig. 7 a has described at least in conjunction with the individual acoustic equipment 1000a of gyroscope 170a 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 frequency analyzer 790, the characteristic in rotary moving detecting to analyze gyroscope 170a.Gyroscope 170a is representing that the signal in rotary moving that it detects outputs to the whichever existing in degree analyzing device 760, velocity analyzer 770, acceleration analysis device 780 and frequency analyzer 790.

Degree analyzing device 760 is analyzed the amount of the rotation detecting around the gyroscope 170a of one or more axle.Degree analyzing device 760 can be configured to this analysis to be limited as the detection rotation amount occurring within the predetermined sampling period, the length of predetermined sampling period arranges by the sampling setting providing to degree analyzing device 760.This analysis comprise by the rotation amount of detection with by the degree setting also providing to degree analyzing device 760, arrange one or more rotation degree value compare.Among rotation degree value, can be that minimum (is for example rotated degree value, minimum around the mobile degree of one or more axle), this indication in rotary moving using be accepted before effective indication in rotary moving at all or this indication in rotary moving using be accepted head in the part by user move cause before, this minimum rotation degree value must be indicated as in the signal of gyroscope 170a output and detect (can within the given sampling period).

Can think that expectation is received to the required minimum degree in rotary moving of any mobile indication effectively at all, to filter out the wrong mobile indication of gyroscope 170a signaling.Any mobile indication required minimum degree in rotary moving is received to and is made by user, can be the approach separating in rotary moving with causing by other impact in rotary moving causing in order to user's head is moved.Referring back to being placed in the storage bin of mobile traffic or the example that the individual acoustic equipment on seat had previously presented, although the movement that the vehicles cause is tended to move (as previously discussed in detail) along the translation of axle really, but the vehicles are obviously not always advanced in straight path, and obviously need to make and turning to change their direct of travel around one or more axle, this will be detected as in rotary moving by the gyroscope 170a that is placed in the individual acoustic equipment on storage bin or seat.Yet, most of vehicles are made turning (for example, radius of turn is 30 feet of above common automobiles or tends in the situation that make the common relatively large turning of radius towards steamer and the aircraft of a side or opposite side inclination) in the movement of relatively large radian.Thereby the turning that the vehicles are made will make the in rotary moving of the detection that occurs in the time span more strengthening common in rotary moving of comparing user's head conventionally.Therefore, minimum rotation degree value can be set so that the common turning that the vehicles are made will can not bring the enough rotations that meet minimum rotation degree value within the given sampling period, and the common in rotary moving of user's head will likely surpass this minimum rotation degree value.

Alternatively and/or extraly, among rotation degree value, can be maximum rotation degree value, this maximum rotation degree value is chosen as to attempt moving by head in rotary moving the separating with causing by other impact in rotary moving causing.Can in people can move with respect to their trunk their understanding degree, the restriction of known physiology of head, maximum rotation degree value be set.More specifically (and referring again to Fig. 6 a), research to this physiology restriction is found, (the structure of neck moves head with respect to the downward pivotable of making progress of trunk conventionally, rotation around axle Ny) scope is restricted to about 90 degree, in rotary moving (to from left to right, rotation around axle Nz) scope is restricted to about 120 degree, and the scope of mobile being tilted to the right left (that is, around axle Nx rotation) is restricted to about 90 and spends.

Thereby, in the situation that the signal receiving from gyroscope 170a shows to sample, in the period, degree in rotary moving minimum rotation degree value (if providing) is provided or maximum rotation degree value (if providing) is provided, and the movement that degree analyzing device 760 can show in the signal from gyroscope 170a to controller 950 signalings can not show that the head that user makes moves.Alternatively, whether controller 950 is being configured to make a feasible weighted value in a plurality of feasible weighted values owing to individual acoustic equipment in the embodiment of the concrete indication on the head in user, degree analyzing device 760 can make less weighted value owing to the movement showing in the signal from gyroscope 170a by signaling controller 950.

Velocity analyzer 770 is analyzed the speed in rotary moving around one or more axle that gyroscope 170a detects.This analysis comprises the rotary speed of detection and one or more rotary speed value of arranging by the speed setting providing to velocity analyzer 770 is compared.It among rotary speed value, can be minimum rotary speed value, this indication in rotary moving at all using be accepted before effective indication in rotary moving or this indication in rotary moving using be accepted head in the part by user move cause before, this minimum rotary speed value must be indicated as in the signal of exporting at gyroscope 170a and detect.At the non-existent embodiment of degree analyzing device 760 or in minimum rotation degree value, do not arrange in the embodiment of the minimum rotation degree that need to occur within the given sampling period, this minimum rotary speed value can be the alternative scheme to the minimum rotation degree value of previous description.

Alternatively and/or extraly, among rotary speed value, can be maximum rotative speed value, this maximum rotative speed value is chosen as to attempt moving by head in rotary moving the separating with causing by other impact in rotary moving causing.Can in people can move with respect to their trunk their understanding speed, the restriction of known physiology of head, maximum rotative speed value be set.Pass through example, user can make individual acoustic equipment dangle at the end of cotton rope, and wind or some other impacts can make individual acoustic equipment start to rotate at the end of this cotton rope, and may be by moving their fast rotary speed of head around any axle in above-mentioned axle than people.Thereby, in the situation that less than minimum rotary speed value (if providing) or larger than maximum rotative speed value (if providing) speed in rotary moving is provided the signal receiving from gyroscope 170a, velocity analyzer 770 can not show that the head that user makes moves to the movement showing in this signal of controller 950 signalings.

Acceleration analysis device 780 is analyzed the acceleration in rotary moving around one or more axle that gyroscope 170a detects.This analysis comprises the change of the middle acceleration in rotary moving of the acceleration of detection and/or detection and one or more rotary acceleration value of arranging by the acceleration setting providing to acceleration analysis device 780 is compared.Among rotary acceleration value, can be that minimum rotary acceleration value or minimum acceleration change rate value, indication in rotary moving at all using be accepted before effective indication in rotary moving or this indication in rotary moving using be accepted head in the part by user move 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.

Alternatively and/or extraly, among rotary acceleration value, can be that maximum rotary acceleration value or peak acceleration change rate value, this maximum rotary acceleration value or peak acceleration change rate value and are chosen as to attempt moving by head in rotary moving the separating with causing by other impact in rotary moving causing.Can people can move with respect to their trunk they the acceleration of head or acceleration change physiology restriction speed, known understanding in these maximums are set.Turn back to the example that the individual acoustic equipment that previously presented dangles at cotton rope end, at individual acoustic equipment, in wind, twist and/or cause when dangling the change relatively sharply of the acceleration that can detect while colliding stationary object and/or acceleration to be likely greater than people and can move the degree of giving this individual's acoustic equipment by their head of self.Thereby, in the situation that the signal receiving from gyroscope 170a shows less than minimum value (if providing) or change speed than the large rotary acceleration of maximum (if providing) or acceleration, acceleration analysis device 780 can not show that the head that user makes moves to the movement showing in this signal of controller 950 signalings.

The frequency that any circulation rotating around one or more axle that frequency analyzer 790 analysis gyroscope 170a detect moves.More and more research shows, the great majority that human body is made repeat muscle and move with the roughly appearance of the frequency in 1Hz to 2Hz scope.Example is conventionally at per minute 60 examples that skip to the heartbeat that in the scope of 120 jumpings, (or in other words, frequency is between 1Hz to 2Hz) occurs.Another example is also with speed (or in other words, frequency is between 1Hz to the 2Hz) walking of carrying out of 1 to 2 stride per second or the example of running.Even if being also not inclined to surpass, the fastest runner takes the speed more than 2 strides per second, but, conventionally by taking long stride to obtain their larger speed.Along with obviously nodding by beat or knocking foot, the most conventionally with the frequency in this same scope, occur, another example is beat mobile someone's the example in time of the music of just listening to by them.Sometimes, along with having run into, people cleans that the repetition arm that some things make moves, the speed of heartbeat very high physical demands or very high emotional disturbance be issued to per minute 150 jump or more or people nod fast or the head that rocks them when showing very emphatically agree to or disagree with, occur until 3Hz or 4Hz repeat mobile frequency.In very rare situation, observe the frequency that the repetition muscle up to 6Hz or 7Hz moves.

Therefore, can be for frequency analyzer 790 provides the set of frequency of at least specifying maximum frequency values, whether the repetitive nature that can relatively detect for this maximum frequency values in rotary moving be take the frequency of determining this movement is Tai Gao and cannot show that user's muscle moves the frequency of (may be 4Hz).Given gyroscope 170a is configured to detect in rotary moving but not translation and is moved in the situation that, user nod or rock they head will be easy to be detected as in rotary moving, and will be likely by definite frequency below maximum frequency values, make the frequency analyzer 790 will be to controller 950 signalings for detecting the indication in rotary moving that repeats that user causes.Further, although walk and run and tend to along with head and trunk conventionally move up and down and give along vertical axes (according to each stride, axle Nz) repeated translation moves, but research shows, also tend to synchronize with each stride, the downward pivotable that slightly makes progress of head moves (that is, around axle Ny rotation).This occurs along with following situation conventionally: people walking or while running fixing them watch attentively forward straight, to compensate the very identical vertical translation of each stride, move, to keep their watching attentively to pay close attention to given object or other focus in their the place ahead.Thereby, gyroscope 170a may be able to detect moves by this downward pivotable that repeats to make progress during walking the repeat pattern in rotary moving causing, and frequency analyzer 790 frequency that can move to this downward pivotable that makes progress of controller 950 signalings is to show that the frequency that head that user causes moves occurs.

Fig. 7 b has described at feasible electrical architecture 2500h to spendable control circuit 2000 in any in the individual acoustic equipment 1000a of accelerometer 180a and 180b and 1000b in conjunction with this at least.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 frequency analyzer 890 one or more, to analyze this characteristic to the movement of accelerometer 180a and 180b detection, as the acceleration along one or more axle.The two represents that the signal of each self-monitoring acceleration outputs to the whichever existing in differential mode detector 830 and common mode detector 840 accelerometer 180a and 180b.

Differential mode detector 830 is relatively configured to along accelerometer 180a and 180b the acceleration that its sensitive various repacking are surveyed, and the signal of difference that shows the acceleration of these detections is outputed to the whichever existing in acceleration analysis device 880 and frequency analyzer 890.These same acceleration that common mode detector 840 is relatively surveyed along these same repacking, and showing to find the signal of the common acceleration of the acceleration of accelerometer 180a and the two detection of 180b is outputed to the whichever existing in acceleration analysis device 860 and frequency analyzer 870.In other words, differential mode detector 830 and common mode detector 840 are used for distinguishing differential mode acceleration and common mode acceleration.In process so, the differential mode that differential mode detector 830 and common mode detector 840 are used for distinguishing the position experience of accelerometer 180a and 180b moves with common mode and moves.

Acceleration analysis device 860 is analyzed accelerometer 180a and the two acceleration along one or more axle that detect, that show in the signal output of common mode detector 840 of 180b.This analysis comprises the change of common mode acceleration and/or common mode acceleration and one or more accekeration of arranging by the acceleration setting providing to acceleration analysis device 860 is compared.As discussed previously, common mode acceleration is likely the translational acceleration that shows the impact except head that user causes moves.Although suppose that translational acceleration can not cause by user's movement (particularly head moves), need to reaffirm, accelerometer 180a and 180b can stand to be moved with another and affected the acceleration that the two causes by user's head.Turn back to the example of individual acoustic equipment in mobile traffic, if on individual acoustic equipment user's in mobile traffic head, accelerometer 180a and 180b will detect head that the vehicles move the common mode acceleration that causes and user move the differential mode acceleration that causes the two.Although controller 950 will be likely conventionally be adopted the indication of differential mode acceleration in the process of determining on the head of individual acoustic equipment in user and ignore the indication of common mode acceleration, can exist (at some At All Other Times) for must be only in the situation that the indication that individual acoustic equipment removed and be placed in from user's head the common mode acceleration that in mobile traffic, somewhere is detected.This indication of common mode acceleration can be the acceleration consistent with the individual acoustic equipment dropping and/or can be fully high and on the fully short time period, occur with dropping after clash into the consistent acceleration change speed of the individual acoustic equipment of floor or other rigid surface.Because the in the situation that individual acoustic equipment clashing into rigid surface after it falls or is falling very still on the head user, so controller 950 can be using any indication in this indication as the basis on the head in user not of definite individual acoustic equipment immediately.

Frequency analyzer 870 is analyzed accelerometer 180a and 180b, and the two is that detect, that in the signal output of common mode detector 840, show, detect as the frequency that occur, any repetition acceleration along one or more axle.This analysis comprises the frequency of this common mode acceleration and one or more frequency values of arranging by the set of frequency providing to frequency analyzer 870 is compared.Again, as discussed previously, common mode acceleration is likely the translational acceleration that shows the impact except head that user causes moves.Although suppose that translational acceleration can not cause by user's movement (particularly head moves), in fact some common mode acceleration can be the indications on the head of individual acoustic equipment in user.By example 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 repeated translation acceleration detection for to occur in the frequency of this scope, can think that the detection of repeated translation acceleration is the indication on the head of individual acoustic equipment in user.In certain embodiments, can adopt acceleration analysis device 860 in conjunction with frequency analyzer 870, with by adopt acceleration analysis device 860 determine the direction of gravity (should be the downward continuous acceleration of 1G) and subsequently only with the repetition acceleration of the axle appearance along aiming at the direction of gravity (as, will be along with their walking or the 1Hz to 2Hz consistent with the people's who moves up and down head and trunk that run repeat to move up and down) carry out this frequency analysis, this frequency analysis of repeated translation acceleration is only restricted to vertical repetition acceleration.

Acceleration analysis device 880 is analyzed the differential mode acceleration along one or more axle showing in the signal output of differential mode detector 830.This analysis comprises the change of differential mode acceleration and/or differential mode acceleration and one or more accekeration of arranging by the acceleration setting providing to acceleration analysis device 880 is compared.As discussed previously, at the geometry of given neck and head in the situation that along the position of backbone, roughly near fulcrum N, the differential mode acceleration that accelerometer 180a and 180b detect is likely the rotary acceleration that shows that head that user causes moves.Thereby, likely for previously for previous the discussed more the same object of acceleration analysis device 780 and in the mode more, by 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 axle showing in the signal output of differential mode detector 830.This analysis comprises the frequency of any this repetition differential mode acceleration and one or more frequency values of arranging by the set of frequency providing to frequency analyzer 890 is compared.Again, at the geometry of given neck and head in the situation that along the position of backbone, roughly near fulcrum N, the differential mode acceleration that accelerometer 180a and 180b detect is likely the rotary acceleration that shows that head that user causes moves.Thereby, likely for previously for previous the discussed more the same object of frequency analyzer 790 and in the mode more, by the frequency analyzer 890 execution frequency of any this repetition differential mode acceleration and this comparisons of one or more frequency values.

It should be noted that, although conventionally suppose that the detection of differential mode acceleration likely shows the in rotary moving of user's head, have not corresponding to that rotation head moves but showing some the feasible differential mode acceleration on the head of individual acoustic equipment in user of can detecting.For example, on the opposite side that accelerometer 180a and 180b is placed on to user's head (for example, be placed in the receiver separating in a pair of receiver 100, as, at an A and C place) embodiment in, accelerometer 180a and 180b can detect accelerometer 180a and 180b are placed 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 may be due to user with talk or relevant chew or other lower jaw moves and causes of yawning because the inferior maxilla that the muscle of the sidepiece of user's head moves with mobile subscriber.Other and the ear of being close to the users of the skull of some muscle in this muscle in user, so that they can be pressed for receiver 100, for example, makes receiver 100 along with moving around by each these muscle of lower jaw moving telescopic.In the situation that user just chews, can there is this immunity and the differential mode acceleration of following with recursive nature, may be in the frequency range of previously discussed 1Hz to 2Hz (or may be 1Hz to 3Hz or 4Hz).

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

By each being deployed in the housing 110 of housing 160 and receiver 100 this accelerometer 180a and 180b divides out or this is divided out gyroscope 170a and 170b, the Differential Detection that makes it possible to move, but difference is, in the situation that housing 110 can maybe cannot be physically coupled to user's head, when connector 150 is connected to the intercom system of this mobile traffic, housing 160 can become and be physically coupled to the motion of mobile traffic.Thereby, in the time of on head at individual acoustic equipment in user, in the situation that one or the other in accelerometer 180a or gyroscope 170a is physically coupled to the movement of user's head, one or the other in accelerometer 180b or gyroscope 170b is physically coupled to the movement of the vehicles as mobile reference.In this way, create the form of mobile Differential Detection, wherein mobile difference is with reference to the movement of the vehicles but not inertial reference.

In the situation that this is attached in the individual acoustic equipment that adopts physical configuration 1500e accelerometer 180a and 180b, although likely carry out some, revise, but still can in physical configuration 1500e, use about analyzing acceleration that these accelerometers detect to determine the whether many technology in the technology of the modification discussion of the physical configuration 1500a-1500d on the head in user of individual acoustic equipment.Yet, in the situation that accelerometer 180a and 180b are placed in physical configuration 1500a-1500d so that can suppose that their coordinate system aims at, this hypothesis is in the situation that infeasible in only these two accelerometers being deployed in to the separate housing of physical configuration 1500e by 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.

In the situation that this is attached in the individual acoustic equipment that adopts physical configuration 1500e gyroscope 170a and 170b, can be as will be in greater detail, used the movement that adopts the previously described technology of single gyroscope 170a and adopt this hybrid analysis to the previously described technology of accelerometer 180a and 180b to detect.Yet, again, in the situation that these two gyroscopes are deployed in the separate housing of the physical configuration 1500e only connecting by 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 be combined extraly along a housing 155 again of cable 152 placements between the housing 110 of receiver 100 and the housing 160 of connector 150.The difference of physical configuration 1500f and physical configuration 1500e is also along cable 152, the accelerometer 180b that exist and the whichever in gyroscope 170b to be placed in housing 155 but not in the housing 160 of the position of connector 150.

In the interior accelerometer 180b of housing 155 or gyroscope 170b, one or two this is placed on the physical coupling to a certain degree of the motion that one or two and mobile traffic in accelerometer 180b or gyroscope 170b are still 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 is also provided on the head in user time at the individual acoustic equipment that adopts physical configuration 1500f along the position of the housing 155 of cable 152 length.

It should be noted that one or two placement in the interior accelerometer 180b of housing 155 or gyroscope 170b is moved user except their head moves also to depend on to determine that the individual acoustic equipment that adopts physical configuration 1500f is whether on the head in user.In brief, in the situation that be connected to vehicle interior communication system on the head of at least one receiver 100 in user that cable 152 is coupled to and in the situation that be physically coupled to the housing 160 of a part for the vehicles by connector 150, user's head is bound to effectively to a part for the vehicles.Therefore, the health of following user due to a part for cable 152, as housing 155 can mobile result, by likely detect make from a part of the vehicles to another part mobile subscriber head, the movement (for example,, as user changes seat in the vehicles) of user's body in the vehicles.Thereby the movement that the user except head moves makes also can cause can be owing to user but not the detected movement of other influences.

Not be different from head and move, the movement of the cable 152 that mobile user causes everywhere in the vehicles is likely compared translation and is more rotated in itself.This is because cable 152 can be regarded as roughly between two fulcrums and extended, that is, and and the point of hole coupling to the point of the housing 160 of connector 150 and hole coupling to the housing 110 of receiver 100.Thereby, because again, in rotary movingly show that more Client-initiated moves (even in the situation that user is in fact just making translation health and moves in the vehicles), and translation move show more by other impact (for example, the movement of the vehicles self) movement bringing, so also can be used the technology that is briefly described as the acceleration for the in rotary moving of analyzing and testing and/or detection that can use in physical configuration 1500e in physical configuration 1500f.

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 110 of at least one and the housing 160 of connector 150 in receiver 100.

Fig. 9 a has described at feasible electrical architecture 2500i to spendable control circuit 2000 in any in the individual acoustic equipment 1000a of gyroscope 170a and 170b and 1000b in conjunction with this.As being explained in more detail, electrical architecture 2500i is configured to efforts be made so that the physical configuration of aiming at by any way by the coordinate system that wherein cannot suppose gyroscope 170a and 170b (as, any one in physical configuration 1500e-1500g).Although 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 describing in a large amount of modes.When adopting electrical architecture 2500i, control circuit 2000 incorporating interconnectings, together with one or more in adjuster 710, differential mode detector 730, degree analyzing device 760, velocity analyzer 770, acceleration analysis device 780 and frequency analyzer 790 of controller 950, to analyze the property difference in rotary moving of each detection in gyroscope 170a and 170b.

Each output in gyroscope 170a and 170b shows each self-monitoring signal in rotary moving around one or more axle.Yet in the situation that gyroscope 170b directly outputs to differential mode detector 730 its signal, gyroscope 170a outputs to its signal towards adjuster 710.Towards adjuster 710, also receive the output of gyroscope 170b, and analyze similitude between in rotary moving that each gyroscope in these gyroscopes detects by interval with repeat to draw gyroscope 170a coordinate system towards how from the coordinate system of gyroscope 170b towards different.Towards adjuster 710 can be certain time period (can be second or until minute) upper from gyroscope 170a and 170b in each indication in rotary moving be averaging, with draw they two coordinate systems towards difference, make to offset a coordinate system in these coordinate systems with respect to another coordinate system towards relatively false change.Next, towards adjuster 710, adopt these differences that draw as the basis of following conversion: what in the signal of gyroscope 170a output, show in rotary movingly stands this and change to create these modifications of moving indications that gyroscope 170a detects.Towards adjuster 710 subsequently providing signals of this modification indication that these move to output to differential mode detector 730.

(the present coordinate system alignment) in rotary moving that differential mode detector 730 relatively detects, and it is individual that the signal (that is, differential mode indication in rotary moving) that shows the difference in rotary moving of these detections is outputed to the whichever existing in degree analyzing device 760, velocity analyzer 770, acceleration analysis device 780 and frequency analyzer 790.In other words, differential mode detector 730 is differential mode in rotary moving separating of any common mode of detecting with gyroscope 170a and 170b in rotary moving.Alternatively and/or except combination with use differential mode detector 730 to provide the indication of difference in rotary moving of detection, 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.Towards adjuster 710 in the situation that draw in difference process to adopt and tend to filter out false average and/or other technology towards changing, can think that the output of the signal that changed to difference towards the adjuster 710 his-and-hers watches Ming Dynasty is the expectation mode that filters out differential mode mistake indication in rotary moving.

Degree analyzing device 760 is analyzed this amount to the differential mode rotation of gyroscope 170a and 170b detection.Again, degree analyzing device 760 can be configured to this analysis to be limited as and to detect the differential mode rotation amount occurring within the predetermined back and forth sampling period, this predetermined back and forth length of sampling period arranges by the sampling setting providing to degree analyzing device 760.This analysis comprise by the differential mode of detection amount in rotary moving with by the degree setting also providing to degree analyzing device 760, arrange one or more rotation degree value compare.Again, can specify differential mode required minimum degree in rotary moving (that is, minimum rotation degree value) to using to filter out differential mode mistake indication in rotary moving (particularly in the situation that do not adopt towards the output of adjuster do like this) and/or as on the assistance separating in rotary moving of the differential mode of the differential mode of the detection that user the is caused detection with causing by other impact in rotary moving.

In addition, can can move with respect to their trunk the known physiology restriction of degree of their head based on people, specify maximum rotation degree value, as on the assistance separating in rotary moving of the differential mode of the differential mode of the detection that user the is caused detection with causing by other impact in rotary moving.Yet, in the situation that individual acoustic equipment adopts physical configuration 1500f, specify differential mode in rotary moving at utmost to use the process of dividing the user of detection to move at the turnover zone that other impact causes from passing through of detecting, can have difficulties because gyroscope 170b be placed in the housing 155 of placing along the length of cable 152.Particularly, user so that the mode that their head rotates in one direction when move everywhere in the vehicles, likely, the mode that housing 155 can rotate in an opposite direction with it moves everywhere, make gained rotation degree difference create surpass differential mode appointment in rotary moving at utmost and therefore think artificially infeasible, to the differential mode degree of the rotation of degree analyzing device 760 signalings.Thereby, in the situation that adopting physical configuration 1500f, can need to specify more strengthening at utmost of rotation, or can preferably not attempt to specify this maximum.

Velocity analyzer 770 analysis differential mode detectors 730 are the differential mode drawing in rotary moving speed in rotary moving to gyroscope 170a and 170b detection according to this.This analysis comprises the differential mode speed of the rotation of detection and one or more rotary speed value of arranging by the speed setting providing to velocity analyzer 770 is compared.It among rotary speed value, can be minimum differential mode rotary speed value, differential mode this indication in rotary moving basic before being accepted the effective indication in rotary moving as differential mode or differential mode this indication in rotary moving using be accepted head in the part by user move cause before, this minimum differential mode rotary speed value must be indicated as in the signal of exporting at differential mode detector 710 and detect.

In addition, maximum differential mode rotary speed value can be chosen to, attempt can move with respect to their trunk based on people the known physiology restriction of speed of their head, move the differential mode the causing differential mode with causing by other impact in rotary moving in rotary moving separating by head.Yet, again, in the situation that individual acoustic equipment adopts physical configuration 1500f, due to housing 155, creating, occurred that the mode of artificial infeasible wrong presentation in rotary moving rotates freely, and may meet difficulty in the process of specifying differential mode maximal rate in rotary moving.

Acceleration analysis device 780 is analyzed differential mode detector 710 according to the differential mode the drawing in rotary moving acceleration in rotary moving of gyroscope 170a and 170b detection.This analysis comprises the change of differential mode acceleration in rotary moving and/or acceleration and one or more rotary acceleration value arranging by the acceleration setting providing to acceleration analysis device 780 is compared.Among rotary acceleration value, can be that minimum rotary acceleration sizes values or minimum acceleration change rate value, indication in rotary moving at all before being accepted the effective indication in rotary moving as differential mode or differential mode indication in rotary moving using be accepted head in the part by user move 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, with the known physiology restriction of attempting the speed based on can moving-head moving by head in rotary moving the separating with causing by other impact in rotary moving causing.

Again, in the situation that individual acoustic equipment adopts physical configuration 1500f, the mode that has occurred artificial infeasible wrong presentation in rotary moving due to housing 155 creating rotates freely, and may meet difficulty in the process of specifying differential mode peak acceleration in rotary moving.Yet, can slightly change electrical architecture 2500i, so that acceleration analysis device 780 can in the situation that the indication of the change speed of the change speed of the artificial feasible rotary acceleration producing than user on the head of this individual acoustic equipment in user rotary acceleration larger, that gyroscope 170a detects directly monitor from the signal of gyroscope 170a reception.This high speed that changes of the rotary acceleration that gyroscope 170a detects will show that individual acoustic equipment dangles and strikes in the object in the vehicles at the end of cable 152 more, or show more to allow individual acoustic equipment at the volley free skating drop on the inside of the vehicles so that it is along with the vehicles move and strike in a part for the vehicles everywhere.

Frequency analyzer 790 is analyzed differential mode detector 730 according to the frequency of the differential mode drawing in rotary moving of gyroscope 170a and 170b detection any circulation acceleration in rotary moving.Can specify at least set of frequency of maximum frequency values for frequency analyzer 790 provides, the differential mode of the repetitive nature that can relatively draw for this maximum frequency values is in rotary moving to determine that whether the frequency of this movement is Tai Gao and cannot show the frequency that user's muscle moves.

Although quite at length presented the operation of electrical architecture 2500i in the individual acoustic equipment that adopts in physical configuration 1500e or 1500f one, but it should be noted that in the individual acoustic equipment of modification of the physical configuration 1500a that can describe in adopting Fig. 6 b and adopt valuably electrical architecture 2500i, particularly in the situation that this is deployed in the housing 110 of receiver 100 accelerometer 180a and 180b.Again, in the modification of the physical configuration 1500a describing in Fig. 6 b, by permitting, with respect to being rotationally connected of the end rotary shell 110 of belt 102, the housing 110 of receiver 100 being coupled to the end of belt 102.As discussed previously, in this scene, cannot 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 180b in order to hold.Further, control circuit 2000 when implementing electrical architecture 2500i in order to draw between accelerometer 180a and 180b towards the ability of difference detecting when each spinning receiver 100 housing 110 so that the cavity 112 that housing 110 limits cannot all with acoustically, be coupled in user's the process of example of duct, understand useful.Pass through example, this individual acoustic equipment can be attended by and store or carry casing (not shown), in this storage or in carrying casing, store individual acoustic equipment, 110 rotations of its middle shell make two cavitys 112 towards the common wall of this casing so that can carry out individual acoustic equipment in it compared with compact storage.In the situation that draw between accelerometer 180a and 180b towards the process of difference in draw consistent with difference with the housing 110 having rotated in this way, controller 950 can be by determining that the indication that this individual acoustic equipment does not respond this species diversity on the head in user receives immediately, and therefore, make immediately this individual acoustic equipment enter lower power mode and/or take other possible action, as previously fully described in detail.

Fig. 9 b described at least in conjunction with 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 being explained in more detail, electrical architecture 2500j is configured to efforts be made so that the physical configuration of aiming at by any way by the coordinate system that wherein cannot suppose accelerometer 180a and 180b (as, any one in physical configuration 1500e-1500g).Although there is this to change, electrical architecture 2500j is similar with the previous electrical architecture 2500h describing in a large amount of modes.When adopting electrical architecture 2500j, control circuit 2000 incorporating interconnectings, one or more 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 together with controller 950, using analyze this movement that accelerometer 180a and 180b are detected characteristic as the acceleration along one or more axle.

Each output in accelerometer 180a and 180b shows the signal of each self-monitoring acceleration along one or more axle.Yet in the situation that accelerometer 180b directly outputs to differential mode detector 830 its signal, accelerometer 180a outputs to its signal towards adjuster 810.Towards adjuster 810, also receive the output of accelerometer 180b, and analyze similitude between the acceleration that each accelerometer in these accelerometers detects by interval with repeat to draw accelerometer 180a coordinate system towards how from the coordinate system of accelerometer 180b towards different.In certain embodiments, towards adjuster 810, can in drawing between these coordinate systems how different processes, identify the direction that each in accelerometer 180a and 180b detects the constant downward 1G acceleration that terrestrial gravitation causes.Towards adjuster 810, the indication of the acceleration of each in certain time period (can be second or until minute) self-acceleration of coming up meter 180a and 180b can be averaging, thus with draw they two coordinate systems towards difference offset a coordinate system in these coordinate systems with respect to another coordinate system towards the change of falseness relatively.Next, towards adjuster 810, adopt these differences that draw as the basis of following conversion: the acceleration showing in the signal of accelerometer 180a output stands this modification indication of changing to create these acceleration that accelerometer 180a detects.The signal of subsequently this modification that these acceleration are provided being indicated towards adjuster 810 outputs to differential mode detector 830 and common mode detector 840.

Differential mode detector 830 compares the acceleration of accelerometer 180a and 180b detection, and the signal (that is, differential mode acceleration) of difference that shows the acceleration of these detections is outputed to the whichever existing in acceleration analysis device 880 and frequency analyzer 890.Common mode detector 840 is these same acceleration relatively, and the signal that shows to find the acceleration (that is, common mode acceleration) common to the acceleration of accelerometer 180a and the two detection of 180b output in acceleration analysis device 860 and frequency analyzer 870, exist no matter which.In other words, as in the situation at electrical architecture 2500h, differential mode detector 830 and common mode detector 840 are used for distinguishing differential mode acceleration and common mode acceleration.Alternatively and/or except combination with use differential mode detector 830 to provide the indication of difference in the acceleration of detection, towards adjuster 810, can export the coordinate system that shows accelerometer 180a and 180b towards the signal of the change that draws difference, the change of possible designated conversion.Towards adjuster 810 in the situation that draw in the process of difference to adopt and tend to filter out false average and/or other technology towards changing, can think that the output of the signal that changed to difference towards the adjuster 810 his-and-hers watches Ming Dynasty is the expectation mode that filters out the false indication of differential mode acceleration.

Acceleration analysis device 860 is analyzed accelerometer 180a and the two acceleration (that is, common mode acceleration) that detect, that show in the signal output of common mode detector 840 of 180b.This analysis comprises the change of common mode acceleration and/or common mode acceleration and one or more accekeration of arranging by the acceleration setting providing to acceleration analysis device 860 is compared.Again, as discussed previously, common mode acceleration is likely the translational acceleration that shows the impact except head that user causes moves.Really, the change speed of some common mode acceleration and/or common mode acceleration only can show can be in the situation that the situation that individual acoustic equipment does not occur on the head in user (participant in the situation that on the head of individual acoustic equipment in user or the common mode acceleration that can not occur with envisioning relative), as, individual acoustic equipment drops and/or clashes into floor or other rigid surface.Controller 950 can using the change speed of this acceleration or acceleration, from the indication of acceleration analysis device 860 as determining immediately the not basis on the head in user of individual acoustic equipment.

Frequency analyzer 870 is analyzed the frequency of accelerometer 180a and the two any repetition common mode acceleration that detect, that show in the signal output of common mode detector 840 of 180b.This analysis comprises the frequency of this common mode acceleration and one or more frequency values of arranging by the set of frequency providing to frequency analyzer 870 is compared.Again, as discussed previously, common mode acceleration is likely the translational acceleration that more likely shows impact except head that user causes moves (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 showing in the signal output of differential mode detector 830.This analysis comprises the change of differential mode acceleration and/or differential mode acceleration and one or more accekeration of arranging by the acceleration setting providing to acceleration analysis device 880 is compared.As discussed previously, at the geometry of given neck and head in the situation that along the position of backbone neck neck portion, roughly near fulcrum N, the differential mode acceleration that accelerometer 180a and 180b detect is likely the rotary acceleration that shows that head that user causes moves.Thereby, likely for previously for previous the discussed more the same object of acceleration analysis device 780 and in the mode more, by 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 showing in the signal output of differential mode detector 830.This analysis comprises the frequency of any this repetition differential mode acceleration and one or more frequency values of arranging by the set of frequency providing to frequency analyzer 890 is compared.Again, at the geometry of given neck and head in the situation that along the position of backbone neck neck portion, roughly near fulcrum N, the differential mode acceleration that accelerometer 180a and 180b detect is likely the rotary acceleration that shows that head that user causes moves.Thereby, likely for previously for previous the discussed more the same object of frequency analyzer 790 and in the mode more, by the frequency analyzer 890 execution frequency of any this repetition differential mode acceleration and this comparisons of one or more frequency values.

Review electrical architecture 2500i and 2500j the two, can in fact whether be coupled to by receiving connector 150 indication of vehicle interior communication system, the mode of these various analyses that the response of change controller 950 is mobile.Pass through example, in the situation that controller 950 makes weighted value owing to mobile various analysis results, controller 950 can change minute task these results weighted value conventionally to make determining that when connector 150 is not coupled to vehicle interior communication system individual acoustic equipment is not in place, and can change weighted value conventionally to make determining that when connector is so coupled this individual's acoustic equipment is in place.By another example, in the mode of discussing with reference to electrical architecture 2500i, using in a pair of gyrostatic situation, connector 150 is not coupled to the indication of vehicle interior communication system can be so that the mode of analysis is moved in control circuit 2000 change to be deployed in which gyroscope in gyroscope in housing 160 to ignore, and the indication of analyzing the movement that other gyroscope provides to be not different from the mode of having described about electrical architecture 2500g.

It should be noted that; although quite at length presented concrete electrical architecture 2500g-2500j; but other modification of electrical architecture is feasible; wherein analyze mobile characteristic (comprising mobile differential mode characteristic and one or two in common mode characteristic) with from by other impact (particularly; the vehicles move) the mobile user of differentiation that causes is (particularly; head moves) movement that causes, this will be in this article in the scope of the claimed and content described.Regardless of the definite essence of the various analyses that acceleration and/or indication in rotary moving are carried out, controller 950 all receives and adopts at least these indications in whether individual acoustic equipment is made to definite process on the head in user.

Not be different from the content of previously having discussed for electrical architecture 2500a-2500f, one or more time set of the mode of the current operation status that Management Controller 950 determines individual acoustic equipment integral body can be provided for controller 950.By example, can no longer so place individual acoustic equipment and make individual acoustic equipment continue receiving feature, show the concrete time period of waiting after any indication of the in rotary moving or acceleration on the head of individual acoustic equipment in user before entering low power mode determining for controller 950 provides.

In certain embodiments, controller 950 can make various weighted values owing to one or more this indication in this indication.Pass through example, can for drop with individual acoustic equipment and/or clash into floor or rigid surface so that it very can not the head in user on consistent gyroscope 170a the indication of the detection of the change speed of rotary acceleration or this are provided to larger weight to accelerometer 180a and 180b to the reception of the indication of the detection of common mode acceleration, or if not provide other acceleration of being better than detecting or other indication in rotary moving, the higher priority in determining individual acoustic equipment process whether in place.In response to the reception of this higher priority indication, controller 950 can move immediately by making immediately individual acoustic equipment enter into low power mode under individual acoustic equipment hypothesis not in place.

The combination of the analysis of movement that in certain embodiments, controller 950 can be based on detecting and the analysis of the sound of detection receives about the indication whether in place of individual acoustic equipment.Although by example and do not specifically illustrate, controller 950 can receive from one or more movable sensor (that is, one or more in one or more in gyroscope 170a and 170b and/or accelerometer 180a and 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 is to use difference determining whether individual acoustic equipment is in place and will consume electric energy by different rates in accelerometer, gyroscope and microphone, and in the situation that adopting battery or other limited power, can expect to use the different approaches in these approach to determine that based on current power mode whether individual acoustic equipment is in place.

More specifically and referring again to Fig. 4, along with individual acoustic equipment enters darker power mode 550, can be for the indication (whether being differential mode) that is attributable to again the in rotary moving or differential mode acceleration of the individual acoustic equipment on the head in user, reciprocally monitor one or two in one or two or gyroscope 170a and the 170b in accelerometer 180a and 180b.This can carry out in accelerometer 180a and 180b (or gyroscope 170a and/or 170b) may consume the understanding of less electrical energy, the sound detecting to substitute relatively outer microphone 130 and interior microphone 120.Further, gyroscope conventionally needs the constant consumption of electric energy to using to keep quality to rotate or vibrates the fact as inertial reference and likely 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 relatively drive the sound that in acoustic driver 190 outputs, microphone 120 will detect and whether have to analyze the acoustics coupling consumption less electrical energy of going to duct.

Use at controller 950 by accelerometer 180a and 180b (or gyroscope 170a and/or 170b) is in 565 receptions for individual acoustic equipment again after the indication on the head in user, and controller 950 makes individual acoustic equipment enter normal power mode 520.Once in normal power mode, controller 950 just can switch to whether analyze in a pair of receiver 100 outer microphone 130 and the difference between the sound of interior microphone 120 detections of each still in place to test individual acoustic equipment.Really, in the modification of individual acoustic equipment that is configured to provide the combination based on feedforward and the ANR based on feedback, because microphone will be in use, so may think that expectation switches to the analysis that adopts the sound that these microphones detect, and the analysis of the difference of each self-monitoring sound can be attached to during normal power mode in other of the sound carrying out analyzed so that ANR to be provided.Further, in receiver 100, the existence of the independent set of the outer microphone 130 in each and interior microphone 120 makes it possible to carry out the independent detection in each position whether an ear in the ear with user is adjacent in receiver 100.Thereby, during normal power mode, can use the independent comparison of the sound adopting for each receiver 100, about whether interrupting for a receiver in receiver 100 one or more function, still to another receiver in receiver 100, provide this one or more function simultaneously, to controller 950, provide indication.

Alternatively, controller 950 can only adopt one or two in accelerometer 180a and 180b (if present) and/or gyroscope 170a and 170b (if present) to determine that whether individual acoustic equipment is in place during normal power mode, microphone 120 and outer microphone 130 in making only to adopt for providing of ANR and/or other audio-frequency function.

Review in Fig. 3 a-3f, 7a-7b and 9a-9b the electrical architecture of each, what be worth reaffirming is, no matter control circuit 2000 is analyze from the signal (in the situation at electrical architecture 2500a-2500f) of microphone or analyze from accelerometer and/or gyrostatic signal (in the situation at electrical architecture 2500g-2500j), all can be by various forms of simulations and/or digital circuit enforcement control circuit 2000.More specifically, control circuit 2000 can be in conjunction with separately simulation and/or digital assembly to implement each compensator in controller 950, compensator, each sef-adapting filter in sef-adapting filter and each analyzer in analyzer.Alternatively, control circuit 2000 can be based on the storage memory of following command sequence and the combination for the treatment of facility, this command sequence makes treatment facility carry out in compensator, sef-adapting filter and/or analyzer one or more function when carrying out by treatment facility, and makes subsequently treatment facility determine mode of operation and in the process of one or more in controlling power supply 3100, ANR circuit 3200, interface 330 and Audio Controller 3400, take action and/or make to enter into power mode subsequently.

More specifically and pass through example, control circuit 2000 carry out sound analysis (as, the comparison of the sound that outer microphone 130 and interior microphone 120 detect, or as, the comparison of the sound that the sound of acoustic driver 190 outputs and interior microphone 120 detect), in situation, can pass through digital signal processor (DSP) and implement control circuit 2000.This DSP can be relatively high integrated character, make its in conjunction with wherein storing 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 is examined this processing to execute one or more in one or more and/or compensator 210,310 and 410 in controller 950, sef-adapting filter 920 and 940 when the processing core by DSP is carried out.This DSP can, further combined with one or more analog to digital converter (DAC), convert numerical data by this one or more analog to digital converter (DAC) to the analog signal of one or two output in outer microphone 130 and interior microphone 120.This DSP can be further combined with one or more digital interface (for example, digital serial interface), for example, by this one or more digital interface accelerometer and/or gyroscope (, one or more in one or more in gyroscope 170a and 170b and/or accelerometer 180a and 180b), can provide signal to show the movement detecting to DSP.That can carry out numeral input thisly provides to strengthen the providing or this providing of carrying out numeral input that provide from the sort signal of microphone can be provided of the signal from microphone that shows the sound that detects.

By another example, the indication of the movement detecting at control circuit (as, in the situation of the analysis indication to the movement detecting providing in the signal of one or more reception in one or more from gyroscope 170a and 170b and/or accelerometer 180a and 180b), can implement control circuit 2000 by microcontroller.This microcontroller can be in conjunction with the storage RAM of following command sequence and/or the ROM of able to programme/erasable form, and this command sequence makes to process to examine to execute controller 950 when the processing core by microcontroller is carried out; One or more in frequency analyzer 790,870 and 890; One or more in acceleration analysis device 780,860 and 880; Velocity analyzer 770; Degree analyzing device 760; Common mode detector 840; One or more in differential mode detector 730 and 830; And/or one or more in adjuster 710 and 810.This microcontroller can be further combined with one or more digital interface (for example, digital serial interface), for example, by this one or more digital interface accelerometer and/or gyroscope (, one or more in one or more in gyroscope 170a and 170b and/or accelerometer 180a and 180b), can provide signal to show the movement detecting to DSP.

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

Accompanying drawing explanation

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 signal the 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.

The signal that Fig. 7 a and Fig. 7 b have described that accelerometer or gyroscope are provided 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 for being coupled to the feasible physical configuration of the connector of vehicle interior communication system and the individual acoustic equipment of two receivers.

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

Claims

1. for determining a method for individual acoustic device position, comprising:

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 described individual acoustic equipment deploy, to be coupled to the environment in the housing external world of described receiver by acoustically; And

Analysis based on described interior signal and described external signal, by determine described receiver be in be placed on user ear nearby so that described cavity is coupled to acoustically in the mode of operation of duct or in be not placed on user ear nearby so that described cavity is coupled to acoustically in the mode of operation of environment in the described housing external world, determine the mode of operation of described receiver.

2. according to the process of claim 1 wherein:

Analyzing described interior signal and described external signal comprises: the signal rank of the external signal in the signal rank of the interior signal in the selected scope of frequency is selected to scope with described frequency is compared; And

The mode of operation of determining described receiver comprises: in response to the difference between described external signal and the signal rank of described interior signal in the selected scope of described frequency being detected, in passing through the maximum difference of difference threshold value setting appointment, determine that described receiver is in being placed on the mode of operation nearby of ear at least in part.

3. according to the method for claim 1, wherein analyzing described interior signal and described external signal comprises: by drawing the 3rd transfer function that at least shows difference between the first transfer function and the second transfer function, analyze the difference between described the first transfer function and described the second transfer function, described the first transfer function represents that the sound that sends in the acoustic noise source from the environment in the described housing external world is along with its interior microphone in from described noise source to described cavity is propagated and the mode that changes, described the second transfer function represents that described sound is along with it is propagated and the mode of change from described noise source microphone to described.

4. according to the method for claim 3, further comprise:

By the acoustic driver being deployed at least in part in described cavity, in described cavity, with acoustically, export the audio frequency providing with electrical way;

Monitor the signal rank of described external signal;

Draw the 4th transfer function, described the 4th transfer function represent described acoustic driver with the audio frequency providing with electrical way of acoustically output along with it is propagated from described acoustic driver to described interior microphone and the mode that changes; And

Characteristic based on analyzing described the 4th transfer function at least in part, determines the mode of operation of described receiver.

5. according to the method for claim 4, at least one in the audio frequency that wherein whether at least meets minimal level setting according to the signal rank of described external signal and whether provide with electrical way with acoustically output in cavity described in current forward, the determining based on analyzing the difference between described interior signal and described external signal or analyzing the characteristic of described the 4th transfer function of the mode of operation of described receiver.

6. according to the method for claim 1, further comprise:

Be determined to be the change of the mode of operation of described receiver; And

Will take the audio frequency of acoustically output by the acoustic driver of described receiver changes its course as another acoustic driver of another receiver by described individual acoustic equipment and exports with acoustically.

7. according to the method for claim 1,

The wherein analysis based on described interior signal and described external signal, the mode of operation of determining described receiver comprises: first test of at least described receiver of carrying out described individual acoustic equipment whether in the situation that of in normal power mode in the adjacent position of the ear with user

Described method further comprises:

The in the situation that of in darker low power mode, carry out whether second test of at least described receiver in the adjacent position of the ear with user;

The in the situation that of at least waiting in described darker low power mode, carry out the time interval between the described second example of testing;

In response to from the described second that test, the indication of at least described receiver in the adjacent position of the ear with user, enter described normal power mode; And

In response in very first time section, do not exist from carry out described the first test Multi-instance, the indication of at least described receiver in the adjacent position of the ear with user, darker low power mode described in entering.

8. according to the method for claim 7, wherein:

Described the first test further comprises:

In the first scope of sound frequency, described external signal is compared with described interior signal, to determine that whether described cavity is coupled to the duct of user's ear with acoustically, the indication of at least described receiver in the adjacent position of the ear with user as whether;

Described receiver further comprises: acoustic driver, is placed to acoustically to output sound in described cavity; And

Described the second test comprises:

Operate described acoustic driver to export test sound by acoustically;

Operate described interior microphone to detect described test sound; And

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

9. according to the method for claim 7, wherein:

Described the first test further comprises:

In the first scope of sound frequency, described external signal is compared with described interior signal, to determine that whether described cavity is coupled to the duct of user's ear with acoustically, the indication of at least described receiver in the adjacent position of the ear with user as whether; And

Described the second test comprises:

In the second scope of sound frequency, described external signal is compared with described interior signal, to determine that whether described cavity is coupled to the duct of user's ear with acoustically, the indication of at least described receiver in the adjacent position of the ear with user as whether.

10. according to the method for claim 9, the first scope that the second scope of wherein said sound frequency is compared described sound frequency be sound frequency compared with close limit.

11. according to the method for claim 9, wherein:

Described individual acoustic equipment comprises: sef-adapting filter, has a plurality of taps, so that the sound detecting in the environment in the described housing external world is compared with the sound detecting in described cavity;

Described the first test comprises to be used the tap of the first quantity and operates described sef-adapting filter by the first sampling rate; And

Described the second test comprises to be used the tap of the second quantity and operates described sef-adapting filter by the second sampling rate.

12. 1 kinds of individual acoustic equipments, comprising:

The first receiver, has the first housing;

The first interior microphone, is deployed in the first cavity of described the first housing and for exporting the first interior signal of the sound that represents that described the first interior microphone detects;

The first outer microphone, is deployed on described individual acoustic equipment by acoustically, to be coupled to the environment in the described first housing external world and for exporting the first external signal of the sound that represents that described the first outer microphone detects; And

Control circuit, be coupled to described the first interior microphone and be coupled to described the first outer microphone to receive described the first interior signal and described the first external signal, to analyze the difference between described the first interior signal and described the first external signal, and the mode of operation based on analyzing difference between described the first interior signal and described the first external signal and determine described the first receiver at least in part

Wherein said control circuit by least determine described the first receiver be in be placed on user ear nearby so that the first cavity is coupled to acoustically in the mode of operation of duct or in be not placed on user ear nearby so that described the first cavity is coupled to acoustically in the mode of operation of environment in the described first housing external world, determine the mode of operation of described the first receiver.

13. according to the individual acoustic equipment of claim 12, and wherein said the first outer microphone is to be deployed on described individual acoustic equipment to detect the communication microphone of user's sound of voice.

14. according to the individual acoustic equipment of claim 12, further comprises:

The second receiver, has the second housing;

The second interior microphone, is deployed in the second cavity of described the second housing and for exporting the second interior signal of the sound that represents that described the second interior microphone detects; And

Wherein said control circuit is further coupled to described the second interior microphone to receive described the second interior signal, analyze the difference between described the second interior signal and described the first external signal, and the difference based on analyzing between described the second interior signal and described the first external signal at least in part, be placed on user another ear nearby so that described the second cavity is coupled to the state of duct with acoustically, and be not placed on user another ear nearby so that described the second cavity is coupled to acoustically between the state of environment in the described second housing external world, determine the state of described the second receiver.

15. according to the individual acoustic equipment of claim 12, wherein:

The difference of described control circuit based between described the first interior signal and described the first external signal, determines that mode of operation is included in the situation in normal power mode whether first test of described the first receiver in the adjacent position of the ear with user; And

Described control circuit is further configured to:

The in the situation that of in darker low power mode, carry out whether second test of at least described the first receiver in the adjacent position of the ear with user;

In response to from the described second that test, the indication of at least described the first receiver in the adjacent position of the ear with user, make described individual acoustic equipment in described normal power mode; And

In response in very first time section, do not exist from carry out described the first test Multi-instance, the indication of at least described the first receiver in the adjacent position of the ear with user, make described individual acoustic equipment in described darker low power mode.

16. according to the individual acoustic equipment of claim 15, wherein:

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

In the first scope of sound frequency, described the first external signal is compared with described the first interior signal, to determine that whether described cavity is coupled to the duct of user's ear with acoustically, the indication of at least described the first receiver in the adjacent position of the ear with user as whether;

Described the first receiver further comprises: acoustic driver, is coupled to described control circuit and is placed to acoustically to output sound in described cavity; And

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

Operate described acoustic driver to export test sound by acoustically;

Operate described interior microphone to detect described test sound; And

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

17. according to the individual acoustic equipment of claim 15, wherein:

In the first scope of sound frequency, described the first external signal is compared with described the first interior signal, to determine that whether described cavity is coupled to the duct of user's ear with acoustically, the indication of at least described the first receiver in the adjacent position of the ear with user as whether; And

In the second scope of sound frequency, described the first external signal is compared with described the first interior signal, to determine that whether described cavity is coupled to the duct of user's ear with acoustically, the indication of at least described the first receiver in the adjacent position of the ear with user as whether.