EP2716063B1 - Fourniture d'énergie électrique à un casque-micro de communication - Google Patents

Fourniture d'énergie électrique à un casque-micro de communication Download PDF

Info

Publication number
EP2716063B1
EP2716063B1 EP12728882.7A EP12728882A EP2716063B1 EP 2716063 B1 EP2716063 B1 EP 2716063B1 EP 12728882 A EP12728882 A EP 12728882A EP 2716063 B1 EP2716063 B1 EP 2716063B1
Authority
EP
European Patent Office
Prior art keywords
headset
conductor
microphone
intercom
interface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12728882.7A
Other languages
German (de)
English (en)
Other versions
EP2716063A1 (fr
Inventor
Paul G. Yamkovoy
Benjamin Douglass BURGE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bose Corp
Original Assignee
Bose Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US13/152,455 external-priority patent/US8750534B2/en
Priority claimed from US13/152,474 external-priority patent/US8750535B2/en
Application filed by Bose Corp filed Critical Bose Corp
Publication of EP2716063A1 publication Critical patent/EP2716063A1/fr
Application granted granted Critical
Publication of EP2716063B1 publication Critical patent/EP2716063B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016—Earpieces of the intra-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
    • H04R2201/107—Monophonic and stereophonic headphones with microphone for two-way hands free communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/03—Aspects of the reduction of energy consumption in hearing devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones

Definitions

  • This disclosure relates to providing electric power to a two-way communications headset coupled to an aircraft ICS through interfaces not originally meant to support conveying electric power.
  • aviation headsets have expanded in functionality from being two-way communications headsets meant only for use with an aviation intercom system (ICS) to additionally including the ability to accept (wirelessly or via conductive cabling) audio from an auxiliary audio source to (e.g., a tape recorder playing music, solid-state music playing device, etc.), to provide active noise reduction functionality (ANR), and to wirelessly link with cell phones for two-way communications with that cell phone.
  • ICS aviation intercom system
  • ANR active noise reduction functionality
  • the addition of these newer functions to an aviation headset imposes a requirement that electric power be provided to that headset.
  • the "general aviation” (GA) interface which is the most widely used form of aviation headset interface standard in civilian airplanes, employs a pair of connectors that enable the connection of two microphone conductors and a push-to-talk (PTT) control conductor through one of the connectors, and the connection of left and right audio channel conductors and an associated ground conductor through the other of the connectors.
  • G general aviation
  • helicopters employs a single connector, the "U-174" connector, that enables the connection of two microphone conductors and only a monaural audio channel conductor and associated ground conductor.
  • Electric power is provided to a two-way communications headset by creating a differential DC voltage potential between a ground conductor associated with a microphone of that headset and a ground conductor associated with an acoustic driver of that headset, thereby enabling that headset to refrain from drawing electric power from a more limited local power source.
  • a method of providing electric power to a headset includes creating a DC voltage differential between a ground conductor of a microphone of the headset and a ground conductor of an acoustic driver of the headset; or includes creating a DC voltage differential between a microphone ground conductor to be coupled to a headset interface of an aircraft communications system and an acoustic driver ground conductor to be coupled to the headset interface of the aircraft communications system.
  • an apparatus to power a headset includes a headset interface with at least one connector to receive at least one connector of the headset; a microphone ground conductor coupled to the interface to conduct a signal of a microphone of the headset; an acoustic driver ground conductor coupled to the interface to conduct a signal of at least one acoustic driver of the headset; and a voltage source coupled to the microphone ground conductor to create a DC voltage differential between the microphone and acoustic driver ground conductors.
  • a headset includes a headset interface by which the headset may be coupled to another headset interface of an ICS; an acoustic driver to acoustically output audio to an ear of a user; an acoustic driver ground conductor coupling the acoustic driver to the headset interface; a microphone to detect speech sounds of the user; a microphone ground conductor coupling the microphone to the headset interface; and an injected voltage tap circuit coupled to the acoustic driver ground conductor and to the microphone ground conductor to receive electric power provided to the headset through the headset interface by creating a DC voltage differential between the acoustic driver ground and the microphone ground.
  • headsets i.e., devices structured to be worn on or about a user's head in a manner in which at least one acoustic driver is positioned in the vicinity of an ear, and in which a microphone is positioned in the vicinity of the user's mouth to enable two-way audio communications.
  • headsets incorporating a pair of acoustic drivers (one for each of a user's ears) are presented with some degree of detail, such presentations of specific embodiments are intended to facilitate understanding through examples, and should not be taken as limiting either the scope of disclosure or the scope of claim coverage.
  • headsets that also provide active noise reduction (ANR), passive noise reduction (PNR), or a combination of both. It is intended that what is disclosed and what is claimed herein is applicable to headsets structured to be connected with at least an intercom system through a wired connection, but which may be further structured to be connected to any number of additional devices through wired and/or wireless connections.
  • ANR active noise reduction
  • PNR passive noise reduction
  • headsets having physical configurations structured to be worn in the vicinity of either one or both ears of a user, including and not limited to, over-the-head headsets with either one or two earpieces, behind-the-neck headsets, two-piece headsets incorporating at least one earpiece and a physically separate microphone worn on or about the neck, as well as hats or helmets incorporating earpieces and a microphone to enable audio communication. Still other embodiments of headsets to which what is disclosed and what is claimed herein is applicable will be apparent to those skilled in the art.
  • FIG. 1 depicts an embodiment of a communications system 5000 including both a headset 1000a and a power injector assembly 2000a interposed between the headset 1000a and a terminal block 710 by which a headset may be coupled to an intercom system (ICS) 700.
  • ICS intercom system
  • an ICS and at least one interface in the form of one or a pair of connectors typically mounted on a plate
  • a headset to be coupled to that ICS in a civilian aircraft is typically installed by a technician in a manner that is customized for the owner of that aircraft after that aircraft has been purchased.
  • a terminal block e.g., the terminal block 710 within an aircraft to which wire leads from the chosen ICS and wire leads from the chosen headset interface(s) may be electrically coupled in an organized manner that facilitates future repair.
  • the wire leads from a headset interface 490a are coupled to a power injector 470a (the two of which, together, make up the power injector assembly 2000a), which is in turn coupled by wire leads to the terminal block 710 in place of wire leads of the headset interface 490a.
  • the power injector 470a overcomes the lack of a distinct power pin on either of the two connectors making up the headset interface 490a by shifting a voltage level of at least one of the conductors conveying a signal along a cable of a headset relative to a voltage of another of those conductors to provide electric power to that headset.
  • the headset 1000a incorporates an upper assembly 100, a mid assembly 200a and a lower assembly 300a.
  • the upper assembly 100 incorporates a pair of earpieces 110 that each incorporate one of a pair of acoustic drivers 160 and 165, a headband 115 that couples together the earpieces 110, and a microphone boom 125 extending from one of the earpieces 110 to support a microphone casing 120 incorporating a microphone 140.
  • the headset 1000a has an "over-the-head" physical configuration commonly found among aviation headsets.
  • each of the earpieces 110 may be either an "on-ear” (also commonly called “supra-aural”) or an “around-ear” (also commonly called “circum-aural”) form of earcup.
  • on-ear also commonly called “supra-aural”
  • around-ear also commonly called “circum-aural”
  • the mid assembly 200a incorporates a control box 270a and an electrically conductive cable 215 that couples the control box 270a with multiple electrical conductors to one of the earpieces 110, from which further conductors may extend through the headband 115 to electrically couple together the two earpieces 110.
  • the lower assembly 300a incorporates a headset interface 390a made up of a pair of connectors, and a conductive cable 375a that is split at some point along its length (or possibly split at the control box 270a) to be coupled to each of the two connectors making up the headset interface 390a.
  • the headset 1000a may incorporate a wireless transceiver enabling the headset 1000a to be coupled via wireless signals 815 (e.g., infrared signals, radio frequency signals, etc.) to a wireless device 800 (e.g., a cell-phone, an audio recording and/or playback device, a two-way radio, etc.) to thereby enable a user of the headset 1000a to additionally interact with the wifeless device 800 through the headset 1000.
  • wireless signals 815 e.g., infrared signals, radio frequency signals, etc.
  • a wireless device 800 e.g., a cell-phone, an audio recording and/or playback device, a two-way radio, etc.
  • the headset 1000a may incorporate an auxiliary interface (e.g., some form of connector to at least receive analog or digital signals representing audio) enabling the headset 1000a to be coupled through a cable 915 to a wired device 900 (e.g., an audio playback device, an entertainment radio, etc.) to enable a user to at least listen through the headset 1000a to audio provided by the wired device 900.
  • a wired device 900 e.g., an audio playback device, an entertainment radio, etc.
  • the control box 270a may provide one or more manually-operable controls to enable the user to control one or more aspects of the operation of the headset 1000a, possibly including coordinating the transfer of audio among the headset 1000a, the ICS 700, the wireless device 800 and the wired device 900.
  • control box 270a may be incorporated into one or both of the earpieces 110 (or some other portion of the upper assembly 100), thereby possibly obviating the need for the mid assembly 200a to incorporate the control box 270a (and perhaps permitting the entirety of the mid assembly to be eliminated such that the upper assembly 100 is directly coupled to the lower assembly 300a).
  • the connectors of the headset interfaces 390a and 490a are preferably chosen to at least physically conform to the GA interface standard, and cooperate to allow the headset 1000a to be detachably coupled to the ICS 700 through the power injector 470a and the terminal block 710. It is because the GA interface standard entails using pairs of connectors that each of the interfaces 390a and 490a incorporate a pair of connectors, as has been described.
  • the interfaces 390a and interface 490a have been described as being part of the same communications system 5000, the adherence of the interface 390a to the GA interface standard enables the headset 1000a to be coupled to a GA-compliant interface of another ICS of another aircraft, and the adherence of the interface 490a to the GA interface standard enables another headset having a GA-compliant interface to be coupled to the ICS 700 through the power injector assembly 2000a.
  • FIGS. 2a and 2b depict a possible embodiment of an electrical architecture that may be employed by the power injector assembly 2000a and the headset 1000a. Interconnections among the ICS 700, the terminal block 710, the power injection assembly 2000a and the headset 1000a are depicted in a somewhat schematic-like block diagram to facilitate understanding.
  • the ICS 700 may be any of a wide variety of commercially available intercom systems well known to those skilled in aircraft communications systems. Thus, only a portion of the electrical architecture of the ICS 700 pertinent to discussing the operation of the power injection assembly 2000a and the headset 1000a is presented for sake of visual clarity. Thus as depicted to facilitate discussion, the ICS 700 incorporates at least a bias voltage source 740; a resistor 741; a microphone amplifier 745; audio amplifiers 760 and 765; and capacitors 746, 761 and 766.
  • the ICS 700 is coupled to both a ground and an aircraft-VCC of whatever aircraft into which the ICS 700 is installed.
  • the ICS 700 is also coupled to the terminal block 710 via multiple wire leads conveying a push-to-talk (PTT) conductor; both high and low microphone (mic-high and mic-low) conductors; a system ground (system-gnd) conductor; and at least one of left and right audio channel (audio-left and audio-right) conductors.
  • PTT push-to-talk
  • mic-high and mic-low both high and low microphone
  • system-gnd system ground
  • the mic-low and system-gnd conductors are typically both coupled directly to the ground of the aircraft to which the ICS 700 is, itself, coupled.
  • the mic-low and system-gnd conductors effectively become the ground conductors for a microphone and at least one acoustic driver, respectively.
  • the audio-left and audio-right conductors are driven with left and right audio signals by the audio amplifiers 760 and 765 through the capacitors 761 and 766, respectively.
  • the bias voltage source 740 is coupled to both the aircraft-VCC and ground of the aircraft to generate a microphone bias voltage that is driven onto the mic-high conductor through the resistor 741.
  • the resistor 741 usually has a resistance in the range of 220-470 ohms, and the bias voltage source 740 is usually a voltage regulator configured to output a microphone bias voltage of 8-16VDC onto the mic-high conductor.
  • the mic-high conductor is also coupled to the microphone amplifier 745 through a capacitor 746, the capacitor 746 serving as an AC coupling to decouple the input of the microphone amplifier 745 from the microphone bias voltage while passing through analog signals representing speech sounds detected by a microphone.
  • the PTT conductor is coupled to circuitry (not shown) within the ICS 700 that responds to the use of a PTT switch (not shown) operable to selectively couple the PTT and mic-low conductors in a manner that will be well known to those skilled in the art of aircraft communications systems.
  • the power injector 470a and the interface 490a are physically separate components coupled via wire leads.
  • the interface 490a may be provided by whatever technician installs the communications system 5000 in an aircraft from a vendor or other source that is different from that of the power injector 470a, however, it is envisioned that the power injector 470a and the interface 490a would be provided together as components of a single installation kit (i.e., these components of the power injector assembly 2000a would be provided together as an installation kit).
  • a single installation kit i.e., these components of the power injector assembly 2000a would be provided together as an installation kit.
  • the power injector 470a incorporates an alternate bias voltage source 440, a resistor 441, an injection voltage source 445, a PTT separator 450, and capacitors 442 and 446.
  • the interface 490a incorporates connectors 495x and 495y.
  • the power injector 470a is coupled to the mic-high, mic-low, system-gnd, audio-left and audio-right conductors, as well as perhaps also the PTT conductor. Also through being coupled to the terminal block 710 by still another wire lead, the power injector 470a is coupled to the aircraft-VCC.
  • the system-gnd, audio-left and audio-right conductors are conveyed, preferably directly as depicted, onward to the interface 490a via the wire leads that couple together the power injector 470a and the interface 490a.
  • the mic-low conductor is coupled to an alternate microphone low (alt-mic-low) conductor through both the injection voltage source 445 and the capacitor 446, and the mic-high conductor is coupled to an alternate microphone high (alt-mic-high) conductor through the capacitor 442.
  • the power injector 470a is coupled to the PTT conductor
  • the PTT conductor is coupled to the PTT separator 450 which is also coupled to an alternate PTT (alt-PTT) conductor.
  • the alt-PTT, alt-mic-high and alt-mic-low conductors are conveyed onward to the interface 490a in lieu of the PTT, mic-high and mic-low conductors, respectively.
  • Both the alternate bias voltage source 440 and the injection voltage source 445 are also coupled to the aircraft-VCC; and at least the alternate bias voltage source 440 is coupled to the mic-low conductor, as well as possibly also the PTT separator 450.
  • the injection voltage source 445 employs the aircraft-VCC (relative to the mic-low conductor) to generate a difference in voltage potential between the mic-low and alt-mic-low conductors. Given that the mic-low and system-gnd conductors are typically coupled together within aircraft intercom systems (such as depicted within the ICS 700), this generation of a voltage potential between the mic-low and alt-mic-low conductors also creates a voltage potential between the system-gnd and alt-mic-low conductors.
  • the injection voltage source 445 behaves as a DC voltage source placed across the mic-low and alt-mic-low conductors. It is preferred that the voltage potential of about 3VDC be provided in this manner with the alt-mic-low conductor being "shifted” to be at a voltage level that is 3V above the voltage level of the mic-low conductor.
  • the coupling of the capacitor 446 to the mic-low and alt-mic-low conductors in parallel with the injection voltage source 445 is meant to ensure that analog signals representing speech sounds detected by a microphone are able to propagate from the alt-mic-low conductor to the mic-low conductor with relatively little resistance.
  • a DC voltage source (such as what is provided by the injection voltage source 445 between the mic-low and alt-mic-low conductors) normally appears as short or a resistor imposing relatively little resistance at lower frequencies, a voltage source can start to impose greater resistances at higher frequencies, possibly including frequencies at which speech sounds occur.
  • the capacitor 446 overcomes this while still decoupling the difference in DC voltage potential between the mic-low and alt-mic-low conductors.
  • the alternate bias voltage source 440 employs the aircraft-VCC (relative to the mic-low conductor) to generate an alternative microphone bias voltage that is to be provided to the headset 1000a in place of the microphone bias voltage output by the bias voltage source 740 of the ICS 700.
  • the alternate bias voltage source 440 drives this alternate microphone bias voltage onto the alt-mic-high conductor through the resistor 441 in a manner analogous to that in which the bias voltage source 740 drives its microphone bias voltage onto the mic-high conductor through the resistor 741.
  • the resistor 441 like the resistor 741, has a resistance in the range of 220-470 ohms.
  • This alternate microphone bias voltage driven onto the alt-mic-high conductor is selected to be akin to the microphone bias voltage driven onto the mic-high conductor, but shifted by an amount of voltage similar to that by which the alt-mic-low conductor is shifted relative to the mic-low conductor by the injection voltage source 445.
  • shifting the voltage driven onto the alt-mic-high conductor relative to the mic-high conductor by a similar voltage as that by which the alt-mic-low conductor is shifted relative to the mic-low conductor it is intended that the voltage potential between the alt-mic-high and alt-mic-low conductors will be similar to the voltage potential between the mic-high and mic-low conductors.
  • the alt-mic-high conductor be driven by an alternate microphone bias voltage that is 3V above the microphone bias voltage driven onto the mic-high conductor.
  • the alternate bias voltage source 440 is not coupled to the mic-high conductor, and therefore, is unable to detected the microphone bias voltage driven onto the mic-high conductor for purposes of providing a reference for determining what alternate microphone bias voltage should be driven onto the alt-mic-high conductor.
  • any voltage in the range of 8-16VDC (relative to the mic-low conductor) may be driven onto the mic-high conductor by the bias voltage source 740, it may be that an average microphone bias voltage or other estimation of what microphone bias voltage is most frequently encountered among a range of aircraft intercom systems may be derived, with 3V added to that derived voltage to define what the alternate microphone bias voltage should be.
  • the alternate bias voltage source 440 may be additionally coupled to the mic-high conductor to employ the microphone bias voltage driven thereon by the bias voltage source 740 as a reference for deriving what the alternate microphone bias voltage should be.
  • the PTT separator 450 monitors the level of resistance between the alt-PTT and alt-mic-low conductors to distinguish at least among the presence of a very high resistance consistent with their being no coupling between these two conductors, the presence of a very low resistance consistent with these two conductors being directly coupled, and the presence of a triggering resistance that is detectably between the very low and very high resistances.
  • the triggering resistance is provided by the headset 1000a to provide an indication that the headset 1000a, which is capable of making use of the electric power provided by shifting at least the voltage level of the alt-mic-low conductor relative to the system-gnd conductor, is coupled to the power injector assembly 2000a, and not a different headset that is not capable of making use of such a provision of electric power.
  • the PTT separator 450 is coupled to both the alternate bias voltage source 440 and the injection voltage source 445, and signals both to either provide shifted voltage levels or not (i.e., provides both with an "enable” signal or not, respectively), depending on the level of resistance detected between the alt-PTT and alt-mic-low conductors.
  • the PTT separator 450 signals the injection voltage source 445 to shift the voltage potential of the alt-mic-low conductor relative to the mic-low conductor and signals the alternate bias voltage source 440 to provide an alternate microphone bias voltage that is shifted in a similar manner, and where the triggering resistance is not detected, the PTT separator 450 signals the injection voltage source 445 to cease shifting the voltage potential of the alt-mic-low conductor relative to the mic-low conductor such that both are at the same voltage level, and signals the alternate bias voltage source 440 to provide an alternate microphone bias voltage that is not shifted.
  • the provision of the PTT separator 450 to control the injection voltage source 445 and the alternate bias voltage source 440, instead of simply allowing both to always function to shift the voltages of both of the alt-mic-low and alt-mic-high conductors may be deemed desirable as a feature to accommodate the possible use of improperly designed headsets with the ICS 700 through the interface 490a. It is a widespread and highly-regarded practice to never couple together the mic-low and system-gnd conductors within a headset, despite the fact that they are usually coupled within typical aircraft intercom systems, in order to avoid the creation of a ground loop through what are often very lengthy runs of cabling between a headset and its connection to an aircraft ICS. Thus, by not enabling at least the injection voltage source 445, instances of an improperly designed headset being coupled to the interface 490a will not result in a shorting of the output of the injection voltage source 445 to ground.
  • PTT switches are usually implemented with spring-biased, normally open, pushbutton-type switches that are meant to be operated by a user against the spring bias to close in a manner coupling the PTT and mic-low conductors when the user chooses to talk through an aircraft intercom system.
  • the PTT switch would be carried on some portion of the headset, such as in the vicinity of the microphone positioned on a boom in front of the user's mouth.
  • the PTT separator 450 responds to instances of a very low resistance between the alt-PTT and alt-mic-high conductors by coupling the PTT conductor to the mic-low conductor in a manner mimicking the behavior of a PTT switch that is coupled directly to the PTT and mic-low conductors and that has been operated to close so as to couple those two conductors, and the PTT separator 450 responds to instances of there being no such very low resistance between the alt-PTT and alt-mic-low conductors by refraining from coupling the PTT conductor to the mic-low conductor.
  • embodiments are possible in which support for the rare few headsets that still incorporate a PTT switch is not provided such that the PTT separator 450 is not coupled to the PTT conductor and/or such that the PTT separator 450 takes no action to in any way drive a voltage level onto the PTT conductor or to in any way coupled the PTT conductor to the mic-low conductor, regardless of what occurs on the alt-PTT conductor.
  • the PTT separator 450 may have a latching characteristic in which the PTT separator 450 maintains its enable signal to the alternate bias voltage source 440 and the injection voltage source 445 in spite of detecting the triggering resistance being replaced with a resistance consistent with the alt-PTT and alt-mic-low conductors being coupled.
  • the PTT separator 450 detects a triggering resistance between the alt-PTT and alt-mic-low followed by the resistance between these two conductors changing to a very low resistance consistent with these two conductors being coupled, the PTT separator 450 continues to provide an enable signal to the injection voltage source 445 and the alternate bias voltage source 440 based on the assumption that this change to a very low resistance indicates a use of a PTT switch integrated into a variant of the headset 1000a that incorporates a PTT switch (not shown).
  • detecting the onset of a triggering resistance may serve as a trigger for the PTT separator 450 to begin to output such an enable signal, while detecting the transition from there being a triggering resistance to their being a very high resistance may serve as a trigger for the PTT separator 450 to cease to output such an enable signal.
  • a transitions directly between a triggering resistance and a very low resistance may cause the PTT separator 450 to continue to output such an enable signal (in effect, detecting a very low resistance simply causes the PTT separator 450 to refrain from changing the state of its output between continuing or ceasing to output such an enable signal), while a transition from a very low resistance directly to a very high resistance may serve as a trigger for the PTT separator 450 to cease to output such an enable signal (in effect, detecting a very high resistance simply causes the PTT separator 450 to always cease outputting any such enable signal).
  • the connectors 495x and 495y are selected to enable implementation of a GA-compliant headset interface, and therefore, preferably, the connector 495x is a receptacle configured to receive a 0.206" TRS-type plug and the connector 495y is a receptacle configured to receive a 0.250" TRS-type plug, in keeping with the GA interface standard.
  • the alt-PTT, alt-mic-high and alt-mic-low conductors are coupled to the connector 495x in a manner in which the PTT, mic-high and mic-low conductors would normally be coupled in accordance with the GA interface standard in a more conventional aircraft communications system in which the power injector 470a was not interposed between the terminal block 710 and the interface 490a.
  • the connector 495x is dedicated to conveying microphone-related signals.
  • the system-gnd, audio-left and audio-right conductors are coupled in a manner in accordance with the GA interface standard, and thus, the connector 495y is dedicated to conveying signals related to at least one acoustic driver.
  • the connectors 395x and 395y of the interface 390a are also selected to enable implementation of a GA-compliant headset interface such that they are selected to be able to be mate with the connectors 495x and 495y, respectively, of the interface 490a. Therefore, preferably, the connector 395x is a 0.206" TRS-type plug and the connector 395y is a 0.250" TRS-type plug, in keeping with the GA interface standard.
  • the conductors alt-PTT, alt-mic-high, alt-mic-low, system-gnd, audio-left and audio-right are conveyed from the power injector 470a, through the interfaces 490a and 390a, through the rest of the lower assembly 300a, and to the control box 270a.
  • the control box 270a incorporates an injected voltage tap 245, a resistor 250, a power multiplexer 260, a local power source 265, and perhaps also an audio circuit 550 incorporating a microphone router 540, an audio router 560, and one or both of a wireless transceiver 580 and an auxiliary interface 590.
  • the upper assembly incorporates the microphone 140, the acoustic drivers 160 and 165, and perhaps also an ANR circuit 155 and/or a pair of audio amplifiers (not shown).
  • the control box 270a and the upper assembly 100 are physically separate components coupled via the cable 215.
  • the control box 270a and the upper assembly 100 are combined as a single one-piece unit without the intervening cable 215.
  • the system-gnd conductor is coupled to each of the injected voltage tap 245, the power multiplexer 260, the local power source 265, and one or more of what is incorporated into the audio circuit 550.
  • the system-gnd conductor is also conveyed from the control box 270 to the upper assembly 100 via the cable 215 where it is also coupled to at least the acoustic drivers 160 and 165, as well as possibly also the ANR circuit 155 and/or a pair of audio amplifiers.
  • the audio-left and audio-right conductors are coupled to the audio router 560 within the audio circuit 550, and through the audio router 560, the audio-left and audio-right conductors are selectively coupled to the acoustic drivers 160 and 165, perhaps also through the ANR circuit 155 and/or a pair of audio amplifiers.
  • the alt-mic-low and alt-mic-high conductors are coupled to the microphone router 540 within the audio circuit 550, and through the microphone router 540, the alt-mic-low and alt-mic-high conductors are selectively coupled to the microphone 140.
  • the alt-mic-low conductor is also coupled within the control box 270a to the injected voltage tap 245.
  • the alt-PTT conductor is coupled within the control box 270a to the resistor 250.
  • the auxiliary interface 590 incorporates at least a connector by which the cable 915 may be coupled to the control box 270a to enable the formation of an electrical connection between the wired device 900 and the headset 1000a to at least enable the conveyance of electrical signals therebetween that represent at least audio to be acoustically output by the acoustic drivers 160 and 165, if not also electrical signals representing sound detected by the microphone 140.
  • the wireless transceiver 580 enables the wireless device 800 and the headset 1000a to exchange wireless signals across a wireless link 815 (referring back to Figure 1 ) formed therebetween, wherein those wireless signals represent at least audio to be acoustically output by the acoustic drivers 160 and 165, if not also electrical signals representing sound detected by the microphone 140.
  • the wireless link 815 may be based on radio frequency (RF) signals, and may possibly be meant to comply with one or more widely known and used industry standards for RF communication including, and not limited to, the Bluetooth specification promulgated by the Bluetooth SIG based in Bellevue, Washington, or the ZigBee specification promulgated by the ZigBee Alliance based in San Ramon, California.
  • RF radio frequency
  • the microphone 140 and/or the acoustic drivers 160 and 165 must be shared in their use between two-way communications with the ICS 700 and either one-way or two-way communications with one or both of the wired device 900 and the wireless device 800.
  • the microphone router 540 and/or the audio router 560 implement any of a variety of possible audio combining and/or audio distributing functions, possibly automated and/or possibly under a user's control via manually-operable controls carried by the control box 270a, to convey audio between components of the headset 1000a.
  • the audio router 560 which combines that audio with audio received from the ICS 700 that is also be acoustically output, and the combined audio is conveyed onward to the acoustic drivers 160 and 165.
  • the microphone router 540 distributes those speech sounds to one or more of these as appropriate, either automatically or under the control of a user.
  • the ANR circuit 155 employs any of a variety of forms of ANR to reduce the level of environmental acoustic noise in the vicinity of a user's ears, thereby enabling that user to more easily hear whatever audio they may wish to hear from the ICS 700, the wireless device 800 and/or the wired device 900.
  • a pair of audio amplifiers may be incorporated into the headset 1000a, perhaps with either an automatic or manually-operable gain control, to enable a user to more easily hear whatever audio they may wish to hear.
  • the power multiplexer 260 provides an output of such electric power onto a VCC conductor that couples the power multiplexer 260 to whichever one(s) of the audio circuit 550, the ANR circuit 155 or a pair of audio amplifiers (not shown) is present.
  • the power multiplexer 260 is coupled to and able to receive electric power from each of the injected voltage tap 245 and the local power source 260.
  • the injected voltage tap 245 Being coupled to both the alt-mic-low and system-gnd conductors, if a DC voltage differential is being created between these two conductors by the injection voltage source 445 of the power injector 470a, the injected voltage tap 245 is a circuit that receives and conveys this electric power to the power multiplexer 260. Otherwise, if no such DC voltage differential is being created such that the injected voltage tap 245 is unable to convey electric power to the power multiplexer 260, then the power multiplexer 260 switches to drawing electric power from the local power source 265. It is envisioned that the local power source 265 is one of a variety of possible types of battery or other relatively large capacity device able to store a useable electric charge (perhaps a capacitor of relatively large charge capacity).
  • the headset 1000a have different power modes of operation that include at least one power mode in which a lack of electric power being provided either through the lower assembly 300a (e.g., electric power from the power injector 470a) or by the local power source 265 is responded to in a "failsafe" manner in which a pilot will still be able to use the headset 1000a to communicate through the ICS 700 despite the lack of available electric power for the headset 1000a.
  • a lack of electric power being provided either through the lower assembly 300a (e.g., electric power from the power injector 470a) or by the local power source 265 is responded to in a "failsafe" manner in which a pilot will still be able to use the headset 1000a to communicate through the ICS 700 despite the lack of available electric power for the headset 1000a.
  • the microphone router 540 defaults to conveying the alt-mic-high and alt-mic-low conductors all the way between the connector 395x and the microphone 140 to enable full microphone functionality; and that the audio router 560, the ANR circuit 155 and/or any audio amplifiers along the path between the connector 395y and the acoustic drivers 160 and 165 default to conveying the audio-left and audio-right conductors all the way between the connector 395y and the acoustic drivers 160 and 165 to enable full audio acoustic output functionality.
  • the resistor 250 is coupled to the system-gnd conductor to provide the triggering resistance to the PTT separator 450 via the alt-PTT conductor, as previously discussed.
  • the resistor 250 may be coupled to the VCC conductor onto which the power multiplexer 260 outputs electric power and the PTT separator 450 may be configured to be triggered by the presence of a triggering voltage on the alt-PTT conductor, instead of a triggering resistance.
  • the resistor 250 have a resistance high enough to avoid trigger the PTT function of an aircraft ICS where the power injector 470a is not present (such that the PTT and alt-PTT conductors become one and the same), and yet also low enough to be distinguishable from the very high resistance consistent with their being nothing coupling the alt-PTT and alt-mic-low conductors.
  • Figure 3 depicts a variant of a portion of the electrical architecture depicted in Figures 2a and 2b , in which the electrical architecture within the power injector 470a is altered to be simplified so as to eliminate the alternate bias voltage source 440 and its associated resistor 441 and capacitor 442, thereby allowing the mic-high conductor to pass through the power injector 470a such that the mic-high and alt-mic-high conductors become one and the same conductor.
  • This variant offering a somewhat simpler electrical architecture may be deemed desirable where the microphone bias voltage driven onto the mic-high conductor by the bias voltage source of the ICS 700 is deemed to be more than sufficiently large enough to support a microphone despite the manner in which operation of the injection voltage source 445 affects that microphone bias voltage from the perspective of a microphone coupled across the mic-high and alt-mic-low conductors.
  • the provision of 8-16VDC originally required for the support of carbon microphones is vastly more in the way of a bias voltage than is actually needed by current-day electret microphones, and current-day dynamic microphones do not require a bias voltage, at all.
  • the injection voltage source 445 when enabled, behaves very much like a voltage source placed across the mic-low and alt-mic-low conductors, and when not enabled, the injection voltage source 445 behaves like a short between those two conductors at lower frequencies.
  • FIG 4 provides a perspective view of an alternate variant of the communication system 5000 incorporating an alternate headset 1000b and the power injection assembly 2000a.
  • the headset 1000b like the headset 1000a, is capable of accepting the provision of electric power by way of shifting the voltage level of one of the conductors relative to another to create a voltage differential.
  • a significant difference between the headsets 1000a and 1000b, is that the lower assembly 300b of the headset 1000b is separable into two parts to enable the headset 1000b to be used with other intercom systems having an interface other than the GA interface standard (e.g., the Lemo or a U-174 interface standard -- in other words, the lower assembly 300b includes an adapting cable).
  • the GA interface standard e.g., the Lemo or a U-174 interface standard
  • the cable 375a of the lower assembly 300a has been replaced with a cable 375b coupled to a headphone interface 375b made up of a single connector. Also part of the lower assembly 300b is an adapting cable having the two connectors of the interface 390a and a single connector selected to be able to mate with the connector of the interface 390b.
  • FIGs 5a and 5b depict portions of the electrical architecture in the headset 1000b that differ from the possible electrical architecture depicted for the headset 1000a in Figures 2a-b .
  • much of what is depicted centers on the interfaces 380b and 390b where the lower assembly 300b is separable into two parts through the use of connectors compliant to an interface standard other than the GA interface standard, such as either the Lemo or U-174 interface standard.
  • a resistor 350 is incorporated into one or the other of a variant of the interface 390a (as depicted) or the interface 380 to couple the alt-PTT conductor to the system-gnd conductor.
  • the headset 1000b also differs from the headset 1000a in that the headset 1000b incorporates an alternate control box 270b that differs from the control box 270a at least to the extent that the control box 270b does not incorporate the resistor 250.
  • control box 270b may also differ from the control box 270a inasmuch as the power multiplexer 260 may be capable of accepting and employing the aircraft-VCC to provide electric power on the VCC conductor, in addition to being capable of accepting and employing electric power from either of the injected voltage tap 245 or the local power source 265.
  • the power multiplexer 260 detects the provision of that aircraft-VCC and employs it in providing VCC to other components of the headset 1000b, thereby avoiding draining the local power source 265.
  • the resistor 350 acts to trigger the provision of electric power by at least the injection voltage source 445, the injected voltage tap 245 detects and receives that electric power, and the power multiplexer 260 employs it in providing VCC to other components of the headset 1000b, thereby again avoiding draining the local power source 265.
  • the power multiplexer reverts to drawing electric power from the local power source 265.
  • Figure 5a further depicts the optional incorporation of an injected voltage tap 345 coupled to the alt-mic-low and system-gnd conductors to receive electric power where a voltage differential is created between those to conductors, and coupled to the aircraft-VCC conductor to output electric power onto that conductor.
  • the headset 1000b already incorporates the injected voltage tap 245 to draw power from a voltage differential between the alt-mic-low and system-gnd conductors, the incorporation of the injected voltage tap 345 may be deemed unnecessary for the headset 1000b.
  • incorporation of the injected voltage tap 345 may be deemed desirable where it is believed there is a likelihood of the portion of the lower assembly 300b having the interfaces 390a and 390b being employed as an adapting cable between the power injection assembly 2000a and a headset other than the headset 1000b that has a headset interface made to conform to the Lemo interface standard and which is unable to make use of electric power provided as a voltage differential between the alt-mic-low and system-gnd conductors.
  • the incorporation of the injected voltage tap 345 would enable that other headset to be provided with electric power in a manner that is far more conventional with a Lemo-compliant interface, namely via its aircraft-VCC conductor.
  • Figure 6 depicts an electrical architecture of an alternate power injector 470b that differs from the variant of the power injector 470a depicted in Figure 3 inasmuch as the power injector 470b does not incorporate the PTT separator 450 such that the injection voltage source 445 is always enabled as long as aircraft-VCC voltage is provided.
  • the power injector 470b is coupled to an alternate headset interface 490b incorporating a single connector 495 compliant with the U-174 interface standard, instead of the pair of connectors 495x and 495y.
  • the U-174 interface standard like the GA interface standard, incorporates no support for a distinct conductor to convey electric power, and the power injection assembly 2000b made up of the power injector 470b and the headset interface 490b address this such that the headset 1000b may be provided with electric power.
  • Figure 7 depicts an electrical architecture for a possible additional portion of the lower assembly 300a that was not depicted in Figure 1 .
  • This additional portion incorporates the headset interface 390b with a Lemo-compliant form of the connector 395, and a headset interface 380a with GA-compliant connectors 385x and 385y meant to be mated with the connectors 395x and 395y, respectively, of the rest of the lower assembly 300a (in other words, this additional portion is an adapting cable).
  • the mic-high, audio-left, audio-right and system-VCC conductors are coupled between the connector 395 and the connectors 385x and 385y.
  • the mic-low conductor is coupled to the alt-mic-low conductor through a capacitor 346 and an injection voltage source 345 that is selectively enabled by a PTT separator 350, and an aircraft-VCC is provided to the injection voltage source 345.
  • This additional portion enables the headset 1000a to be coupled to an aircraft ICS with only a Lemo-compliant headset interface.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Headphones And Earphones (AREA)

Claims (15)

  1. Système (5000) d'alimentation d'un casque-micro (1000a) à partir d'un interphone, le système comprenant :
    une interface casque-micro couplée à l'interphone et comprenant :
    au moins un connecteur destiné à recevoir au moins un connecteur correspondant du casque-micro ;
    un conducteur faible de micro d'interphone couplé à l'interface casque-micro pour diriger un signal d'un micro du casque-micro ; et
    un conducteur de terre de système d'interphone couplé à l'interface casque-micro pour diriger un signal d'au moins un haut-parleur acoustique du casque-micro ;
    une première source de tension (445) couplée au conducteur faible de micro de l'interface casque-micro pour créer un différentiel de tension continue entre le conducteur faible de micro d'interphone et le conducteur de terre de système d'interphone ;
    un casque-micro comprenant :
    un haut-parleur acoustique (160 ; 165) destiné à délivrer par voie acoustique un son dans l'oreille d'un utilisateur ;
    un micro (140) destiné à détecter des sons vocaux de l'utilisateur ;
    une interface interphone comprenant au moins un connecteur correspondant destiné à être connecté à l'au moins un connecteur de l'interface casque-micro de l'interphone ;
    un conducteur de terre de casque-micro couplant le casque-micro à la terre système de l'interface interphone ;
    un conducteur faible de micro de casque-micro couplant le micro à l'interface interphone ; et
    un circuit de prise de tension injectée (245) couplé au conducteur de terre de casque-micro et au conducteur faible de micro de casque-micro pour recevoir de l'énergie électrique via le différentiel de tension continue entre le conducteur de terre de système d'interphone et le conducteur faible de micro d'interphone.
  2. Casque-micro (1000a) comprenant :
    un haut-parleur acoustique (160 ; 165) destiné à délivrer par voie acoustique un son dans l'oreille d'un utilisateur ;
    un micro (140) destiné à détecter des sons vocaux de l'utilisateur ;
    une interface interphone grâce à laquelle le casque-micro peut être couplé à une interface casque-micro d'un interphone ;
    un conducteur de terre de casque-micro couplant le casque-micro à l'interface interphone ;
    un conducteur faible de micro de casque-micro couplant le micro à l'interface interphone ; et
    un circuit de prise de tension injectée (245) couplé au conducteur de terre de casque-micro et au conducteur faible de micro pour recevoir de l'énergie électrique fournie au casque-micro au travers de l'interface interphone par un différentiel de tension continue entre le conducteur de terre de casque-micro et le conducteur faible de micro de casque-micro.
  3. Casque-micro (1000a) selon la revendication 1 ou 2, comprenant en outre :
    une source d'alimentation locale ; et
    un multiplexeur de puissance pour choisir une source d'énergie électrique parmi au moins la source d'alimentation locale et le circuit de prise de tension injectée, au moins en partie selon qu'il existe ou non un différentiel de tension continue entre le conducteur de terre de casque-micro et le conducteur faible de micro de casque-micro.
  4. Casque-micro (1000a) selon la revendication 3, dans lequel la source d'alimentation locale comprend une batterie.
  5. Casque-micro (1000a) selon la revendication 3, comprenant en outre un conducteur de puissance distinct couplant le multiplexeur de puissance à l'interface interphone, dans lequel le multiplexeur de puissance choisit une source d'énergie électrique parmi la source d'alimentation locale, le conducteur de puissance distinct et le circuit de prise de tension injectée, au moins en partie selon que de l'énergie électrique est fournie ou non au travers de l'interface interphone sur le conducteur de puissance distinct.
  6. Casque-micro (1000a) selon la revendication 3, comprenant en outre un parmi un émetteur-récepteur sans fil, un amplificateur audio et un circuit ANR du casque-micro, dans lequel :
    le multiplexeur de puissance place le casque-micro dans un premier mode d'alimentation dans lequel l'un parmi un émetteur-récepteur sans fil, un amplificateur audio et un circuit ANR est alimenté en énergie électrique lorsqu'il existe un différentiel de tension continue entre le conducteur faible de micro de casque-micro et le conducteur de terre de casque-micro ; et
    il active un second mode d'alimentation dans lequel l'un parmi un émetteur-récepteur sans fil, un amplificateur audio et un circuit ANR n'est pas alimenté en énergie électrique lorsqu'il n'existe aucun différentiel de tension continue entre le conducteur faible de micro de casque-micro et le conducteur de terre de casque-micro.
  7. Casque-micro (1000a) selon la revendication 3, dans lequel le casque-micro entre dans un mode de sécurité dans lequel le micro et le haut-parleur acoustique continuent d'être utilisables avec un interphone couplé à l'interface interphone lorsqu'il n'existe aucun différentiel de tension continue entre le conducteur faible de micro de casque-micro et le conducteur de terre de casque-micro et qu'il n'existe aucune énergie électrique disponible à partir de la source d'alimentation locale.
  8. Casque-micro (1000a) selon la revendication 1 ou 2, comprenant en outre :
    un conducteur PTT couplé à l'interface interphone ; et
    une résistance couplée au conducteur PTT au travers de laquelle le casque-micro fournit sur le conducteur PTT un parmi une résistance de déclenchement entre le conducteur PTT et le conducteur faible de micro de casque-micro et un niveau de tension de déclenchement entre le conducteur PTT et le conducteur faible de micro de casque-micro.
  9. Appareil (2000a) de fourniture d'énergie électrique à un casque-micro (1000a) comprenant :
    une interface casque-micro destinée à être couplée à un interphone et comprenant :
    au moins un connecteur destiné à recevoir au moins un connecteur correspondant du casque-micro ;
    un conducteur faible de micro d'interphone couplé à l'interface pour diriger un signal d'un micro du casque-micro ; et
    un conducteur de terre de système d'interphone couplé à l'interface pour être connecté à un conducteur de terre du casque-micro ; et
    une première source de tension (445) couplée au conducteur faible de micro d'interphone pour créer un différentiel de tension continue entre le conducteur faible de micro d'interphone et le conducteur de terre de système d'interphone.
  10. Appareil (2000a) selon la revendication 1 ou 9, dans lequel :
    l'interface casque-micro comprend un premier connecteur et un second connecteur destinés à recevoir deux connecteurs correspondants du casque-micro ;
    le conducteur faible de micro d'interphone est couplé au premier connecteur ; et
    le conducteur de terre de système d'interphone est couplé au second connecteur.
  11. Appareil (2000a) selon la revendication 1 ou 9, comprenant en outre :
    un conducteur fort de micro d'interphone couplé à l'interface casque-micro pour coopérer avec le conducteur faible de micro d'interphone pour diriger un signal de micro du casque-micro ;
    une seconde source de tension ; et
    une résistance couplant la seconde source de tension au conducteur fort de micro d'interphone pour permettre à la seconde source de tension de fournir une autre tension de polarisation de micro sur le conducteur fort de micro d'interphone par rapport au conducteur de terre de système d'interphone, dans lequel l'autre tension de polarisation de micro diffère d'une tension prévue de polarisation de micro d'une tension similaire au différentiel de tension continue entre le conducteur faible de micro d'interphone et le conducteur de terre de système d'interphone.
  12. Appareil (2000a) selon la revendication 1 ou 9, comprenant en outre :
    un conducteur PTT couplé à l'interface casque-micro ; et
    un séparateur PTT couplé au conducteur PTT pour contrôler le conducteur PTT, et pour envoyer un signal à la première source de tension pour permettre à la source de tension de créer le différentiel de tension continue entre le conducteur faible de micro d'interphone et le conducteur de terre de système d'interphone en réponse à la détection d'un parmi une résistance de déclenchement entre le conducteur PTT et le conducteur faible de micro d'interphone et un niveau de tension de déclenchement entre le conducteur PTT et le conducteur faible de micro d'interphone.
  13. Appareil (2000a) selon la revendication 1 ou 9, dans lequel l'interface casque-micro est un parmi un ICS, un injecteur de puissance et un câble s'adaptant entre l'interface interphone et une autre interface.
  14. Procédé de fourniture d'énergie électrique à un casque-micro (1000a), comprenant la réception d'énergie électrique provenant d'un différentiel de tension continue entre un conducteur de signal d'un micro (140) du casque-micro et un conducteur de terre du casque-micro.
  15. Procédé selon la revendication 14, comprenant en outre :
    la création d'un différentiel de tension continue entre le conducteur de signal du micro du casque-micro et le conducteur de terre du casque-micro ; et
    au niveau du casque-micro, la réception de l'énergie électrique provenant du différentiel de tension continue entre le conducteur de signal du micro du casque-micro et le conducteur de terre du casque-micro.
EP12728882.7A 2011-06-03 2012-06-01 Fourniture d'énergie électrique à un casque-micro de communication Active EP2716063B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13/152,455 US8750534B2 (en) 2011-06-03 2011-06-03 Communications headset power provision
US13/152,474 US8750535B2 (en) 2011-06-03 2011-06-03 Communications headset power provision
PCT/US2012/040351 WO2012167006A1 (fr) 2011-06-03 2012-06-01 Fourniture d'énergie électrique à un casque-micro de communication

Publications (2)

Publication Number Publication Date
EP2716063A1 EP2716063A1 (fr) 2014-04-09
EP2716063B1 true EP2716063B1 (fr) 2014-12-31

Family

ID=46321462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12728882.7A Active EP2716063B1 (fr) 2011-06-03 2012-06-01 Fourniture d'énergie électrique à un casque-micro de communication

Country Status (3)

Country Link
EP (1) EP2716063B1 (fr)
CN (1) CN103782609B (fr)
WO (1) WO2012167006A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103260105B (zh) 2013-05-08 2015-10-28 安百特半导体有限公司 一种利用电子设备的电源向anc耳机供电的方法及设备
US9685916B2 (en) * 2015-10-12 2017-06-20 Qualcomm Incorporated Audio interface circuits and methods
CN105307082B (zh) * 2015-11-11 2016-11-23 深圳市中安瑞科通信有限公司 一种供电系统、供电方法及一体化送受话系统
US10652381B2 (en) * 2016-08-16 2020-05-12 Bose Corporation Communications using aviation headsets
US10433062B2 (en) * 2018-01-12 2019-10-01 Diodes Incorporated Stereo audio system and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7215766B2 (en) * 2002-07-22 2007-05-08 Lightspeed Aviation, Inc. Headset with auxiliary input jack(s) for cell phone and/or other devices
US20060013410A1 (en) * 2004-04-20 2006-01-19 Wurtz Michael J Mobile-telephone adapters for automatic-noise-reduction headphones
US8031878B2 (en) * 2005-07-28 2011-10-04 Bose Corporation Electronic interfacing with a head-mounted device
CN1774143A (zh) * 2005-10-13 2006-05-17 方泰公司 一种省去隔直电容的耳机输出电路
DE202009004276U1 (de) * 2009-04-01 2009-07-16 Sennheiser Electronic Gmbh & Co. Kg Headset
US8379873B2 (en) * 2009-04-29 2013-02-19 Bose Corporation Adaptive headset connection status sensing

Also Published As

Publication number Publication date
EP2716063A1 (fr) 2014-04-09
WO2012167006A1 (fr) 2012-12-06
CN103782609B (zh) 2017-05-03
CN103782609A (zh) 2014-05-07

Similar Documents

Publication Publication Date Title
US8750534B2 (en) Communications headset power provision
US8750535B2 (en) Communications headset power provision
EP3107308B1 (fr) Écouteurs utilisant des signaux de microphone multiplexés pour permettre la suppression active du bruit
US8666083B2 (en) Intercom headset connection and disconnection responses
US8019096B2 (en) Electronic device and external equipment with configurable audio path circuitry
US8995679B2 (en) Power supply voltage-based headset function control
US8379873B2 (en) Adaptive headset connection status sensing
US8432068B2 (en) Zero power drain pushbutton on switch
US8073153B2 (en) System and method for engaging in conversation while using an earphone
US8841799B2 (en) Zero power drain pushbutton controls
EP2716063B1 (fr) Fourniture d'énergie électrique à un casque-micro de communication
EP2594022B1 (fr) Détection de connexion d'ensemble de tête et bouton de mise sous tension nulle
CN101233782A (zh) 与头戴设备的电子接口
US8213625B2 (en) Intercom headset connection and disconnection detection
EP2896216B1 (fr) Système de communication audio
EP2613565B1 (fr) Connexion et déconnexion de casque d'écoute d'interphone
KR20160033490A (ko) 4극 오디오 플러그-잭 커넥터 방식 액세서리 장치 및 전원공급방법
EP2594021B1 (fr) Commandes à boutons poussoirs a consommation nulle
TW202211591A (zh) 具有無線分享訊息功能的耳機充電艙及其藍芽耳機

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20131119

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: H04R 3/00 20060101ALN20140922BHEP

Ipc: H04R 1/10 20060101AFI20140922BHEP

INTG Intention to grant announced

Effective date: 20141029

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 704974

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602012004678

Country of ref document: DE

Effective date: 20150219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150331

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20141231

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150401

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 704974

Country of ref document: AT

Kind code of ref document: T

Effective date: 20141231

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150430

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20150617

Year of fee payment: 4

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602012004678

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20151001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150601

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150630

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150630

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20120601

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160601

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141231

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230523

Year of fee payment: 12