WO2013107271A1 - 一种音频接口适配装置及音频信号接收设备 - Google Patents
一种音频接口适配装置及音频信号接收设备 Download PDFInfo
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- WO2013107271A1 WO2013107271A1 PCT/CN2012/087889 CN2012087889W WO2013107271A1 WO 2013107271 A1 WO2013107271 A1 WO 2013107271A1 CN 2012087889 W CN2012087889 W CN 2012087889W WO 2013107271 A1 WO2013107271 A1 WO 2013107271A1
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- pin
- audio
- conductive device
- unidirectional conductive
- processing module
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Classifications
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
- H04R29/002—Loudspeaker arrays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/004—Monitoring arrangements; Testing arrangements for microphones
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/05—Detection of connection of loudspeakers or headphones to amplifiers
Definitions
- Audio interface adapting device and audio signal receiving device are Audio interface adapting device and audio signal receiving device
- the present invention relates to the field of electronic technologies, and in particular, to an audio interface adaptation apparatus and an audio signal receiving apparatus. Background technique
- the audio interface of an existing audio signal transmitting device for example, a mobile communication terminal
- an audio interface of an audio signal receiving device for example, a headphone
- Pin 2 is an audio pin, that is, a left channel pin and a right channel pin.
- pin 3 and pin 4 of different audio interfaces have different functions.
- Pin 3 is the MIC pin (microphone pin)
- pin 4 is the GND pin (ground pin)
- pin 3 For the GND pin (ground pin)
- pin 4 is the MIC pin (microphone pin) two types of audio interfaces.
- the audio signal transmitting device for example, a mobile communication terminal
- the audio signal receiving device for example, a headset, a headset
- the audio signal transmitting device and the audio signal Not only can the receiving device communicate with the MIC pin of the audio interface, but also the audio pins (left channel pin and right channel pin) of the audio interface can be used for audio signal transmission.
- the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide an audio interface adaptation device (adaptive circuit) and an audio signal receiving device (for example, a headset, a headset, a speaker) provided with the above adaptation device,
- An audio signal switching device, and other audio signal receiving device that receives and processes an audio signal through an audio pin), when connected to an audio signal transmitting device provided with any type of audio interface, can pass through an audio tube of the audio interface Foot (left channel pin, and / or right channel tube) Feet) Normally receive audio signals.
- the present invention provides an audio interface adaptation apparatus, the apparatus comprising: an audio interface, the audio interface comprising a pin 1, a pin 2, a pin 3 and a pin 4; an audio pin of the audio interface Connected to the pin 3 through a first unidirectional conductive device, and connected to the pin 4 through a second unidirectional conductive device; the audio pin includes the pin 1, and / or pin 2; One of the pin 3 and the pin 4 serves as a microphone pin and the other serves as a ground pin; the conductive direction of the first unidirectional conductive device is the audio pin to the pin 3; The conductive direction of the second unidirectional conductive device is the audio pin to the pin 4.
- the pin 1 is sequentially connected to the pin 3 through the first signal processing module, the first unidirectional conductive device, and sequentially passes through the first signal processing module, the second unidirectional conductive device, and the The pin 4 is connected; and/or
- the pin 2 is sequentially connected to the pin 3 through a second signal processing module, a first unidirectional conductive device, and sequentially passes through the second signal processing module and the second unidirectional conductive device and the tube Pin 4 is connected.
- the device further includes a first bidirectional conductive element; one end of the first bidirectional conductive element is connected to the pin 3 and the first unidirectional conductive device, and the other end of the first bidirectional conductive element
- the pin 4 is connected to the second unidirectional conductive device.
- the first bidirectional conductive element is a resistor.
- the first unidirectional conductive device is one of the following components: a diode, a triode, and a MOS transistor; and the second unidirectional conductive device is one of the following components: a diode, a triode, and a MOS transistor.
- the first unidirectional conductive device is a diode D1, a positive pole of D1 is connected to the audio pin, and a negative pole of D1 is connected to the pin 3; and/or
- the second unidirectional conductive device is a diode D2, the anode of which is connected to the audio pin, and the cathode of D2 is connected to the pin 4.
- the first unidirectional conductive device is a PNP type transistor T1, an emitter of T1 and the audio The pins are connected, and the base of T1 is connected to the pin 3; and/or
- the second unidirectional conductive device is a PNP type transistor T2, the emitter of T2 is connected to the audio pin, and the base of T2 is connected to the pin 4.
- the first unidirectional conductive device is an NPN transistor T1, the base of T1 is connected to the audio pin, and the emitter of T1 is connected to the pin 3; and/or
- the second unidirectional conductive device is an NPN type transistor T2, the base of which is connected to the audio pin, and the emitter of T2 is connected to the pin 4.
- the first unidirectional conductive device is an N-channel junction MOS transistor F1, the source of F1 is connected to the audio pin, and the gate of F1 is connected to the pin 3; and/or
- the second unidirectional conductive device is an N-channel junction MOS transistor F2, the source of which is connected to the audio pin, and the gate of F2 is connected to the pin 4.
- the first unidirectional conductive device is a P-channel junction MOS transistor F1, the gate of F1 is connected to the audio pin, and the source of F1 is connected to the pin 3; and/or
- the second unidirectional conductive device is a P-channel junction MOS transistor F2, the gate of F2 is connected to the audio pin, and the source of F2 is connected to the pin 4.
- the first signal processing module is one of the following: a resistor, a microphone, a transformer, a parallel resistor and a comparator, a parallel resistor and an operational amplifier; and the second signal processing module is one of the following: a resistor, a microphone, Transformers, parallel resistors and comparators, parallel resistors and operational amplifiers.
- the audio interface is a headphone jack or a headphone jack.
- first unidirectional conductive device and the second unidirectional conductive device are integrated in a single chip.
- the present invention also provides an audio signal receiving apparatus, the apparatus comprising: an audio interface adapting apparatus and an audio signal receiving unit, wherein
- the audio interface adaptation device includes: an audio interface, a first unidirectional conductive device, a second unidirectional conductive device, and a signal processing module; the audio interface includes a pin 1, a pin 2, a pin 3, and a pin 4
- the pin 1 is connected to the pin 3 through a first unidirectional conductive device and is electrically conductive through the second unidirectional
- the device is connected to the pin 4;
- the pin 2 is connected to the pin 3 through a first unidirectional conductive device, and is connected to the pin 4 through a second unidirectional conductive device;
- the signal processing module includes a first signal processing module, and the pin 1 is sequentially connected to the pin 3 through the first signal processing module and the first unidirectional conductive device, and sequentially passes through the first signal processing module.
- a second unidirectional conductive device is coupled to the pin 4; and/or
- the signal processing module includes a second signal processing module, and the pin 2 is sequentially connected to the pin 3 through the second signal processing module and the first unidirectional conductive device, and sequentially passes through the second signal processing module.
- a second unidirectional conductive device is connected to the pin 4;
- One of the pin 3 and the pin 4 serves as a microphone pin and the other serves as a ground pin;
- the conductive direction of the first unidirectional conductive device is the audio pin to the pin 3;
- the conductive direction of the second unidirectional conductive device is the audio pin to the pin 4;
- the signal processing module is one or two of the following: a transformer, a secondary coil of the transformer is connected to an audio signal receiving unit; a resistor and a comparator connected in parallel, and an output end of the comparator is connected to the audio signal receiving unit; A resistor and an operational amplifier are connected in parallel, and an output of the operational amplifier is connected to the audio signal receiving unit.
- the audio pin includes: the pin 1 and the pin 2; the signal processing module includes: a first signal processing module and a second signal processing module; the pin 1 sequentially passes the first signal The processing module and the first unidirectional conductive device are connected to the pin 3; the pin 2 is sequentially connected to the pin 4 through the second signal processing module and the second unidirectional conductive device.
- the audio interface adapter device further includes a first bidirectional conductive element; one end of the first bidirectional conductive element is connected to the pin 3 and the first unidirectional conductive device, and the first bidirectional conductive element The other end is connected to the pin 4 and the second unidirectional conductive device.
- the first bidirectional conductive element is a resistor.
- the first unidirectional conductive device is one of the following components: a diode, a triode, and a MOS transistor; and the second unidirectional conductive device is one of the following components: a diode, a triode, and a MOS transistor.
- the first unidirectional conductive device is a diode D1, the anode of the D1 is connected to the audio pin, and the cathode of the D1 is connected to the pin 3; and/or
- the second unidirectional conductive device is a diode D2, the anode of which is connected to the audio pin, and the cathode of D2 is connected to the pin 4.
- the first unidirectional conductive device is a PNP type transistor T1, the emitter of T1 is connected to the audio pin, and the base of T1 is connected to the pin 3; and/or
- the second unidirectional conductive device is a PNP type transistor T2, the emitter of T2 is connected to the audio pin, and the base of T2 is connected to the pin 4.
- the first unidirectional conductive device is an NPN transistor T1, the base of T1 is connected to the audio pin, and the emitter of T1 is connected to the pin 3; and/or
- the second unidirectional conductive device is an NPN type transistor T2, the base of which is connected to the audio pin, and the emitter of T2 is connected to the pin 4.
- the first unidirectional conductive device is an N-channel junction MOS transistor F1, the source of F1 is connected to the audio pin, and the gate of F1 is connected to the pin 3; and/or
- the second unidirectional conductive device is an N-channel junction MOS transistor F2, the source of which is connected to the audio pin, and the gate of F2 is connected to the pin 4.
- the first unidirectional conductive device is a P-channel junction MOS transistor F1, the gate of F1 is connected to the audio pin, and the source of F1 is connected to the pin 3; and/or
- the second unidirectional conductive device is a P-channel junction MOS transistor F2, the gate of F2 is connected to the audio pin, and the source of F2 is connected to the pin 4.
- the audio interface is a headphone jack or a headphone jack.
- first unidirectional conductive device and the second unidirectional conductive device are integrated in a single chip.
- the audio signal receiving device can be connected to an audio signal transmitting device provided with any type of audio interface, successfully detected by the audio signal transmitting device, and passed through the audio interface.
- Audio pin left channel, and / or right channel pin
- Receive audio signals is normal Receive audio signals.
- Figure 1 is a schematic view of the principle of the present invention
- FIG. 2 is a schematic structural view of a first embodiment of an audio interface adaptation apparatus and an audio signal receiving apparatus according to the present invention
- FIG. 3 is a schematic structural view of a second embodiment of an audio interface adaptation apparatus and an audio signal receiving apparatus according to the present invention.
- FIG. 4 is a schematic structural view of a third embodiment of an audio interface adaptation apparatus and an audio signal receiving apparatus according to the present invention.
- FIG. 5 is a schematic structural view of a fourth embodiment of an audio interface adaptation apparatus and an audio signal receiving apparatus according to the present invention.
- FIG. 6 is a schematic structural view of a fifth embodiment of an audio interface adaptation apparatus and an audio signal receiving apparatus according to the present invention.
- Figure ⁇ is a schematic structural view of a sixth embodiment of an audio interface adapting apparatus and an audio signal receiving apparatus of the present invention.
- Figure 8 is a block diagram showing the structure of a seventh embodiment of an audio interface adapting apparatus and an audio signal receiving apparatus of the present invention. detailed description
- the core of the present invention is to pass an audio pin (pin 1, and/or pin 2) in an audio interface through a device having unidirectional conductive characteristics (hereinafter referred to as a unidirectional conductive device, for example , diodes, transistors, MOS tubes, etc.) are connected to pin 3 and pin 4 of the audio interface, respectively.
- a unidirectional conductive device for example , diodes, transistors, MOS tubes, etc.
- a signal processing module may be connected between the audio pin and the unidirectional conductive device, and the signal processing module may be a microphone, a primary coil of a transformer, a resistor, etc., or may include a resistor and a comparator connected in parallel, or include parallel Signal processing module for resistors and op amps.
- FIG. 2 is a schematic structural view of a first embodiment of an audio interface adaptation device and an audio signal receiving device according to the present invention; in this embodiment, the unidirectional conductive device is a diode, and the signal processing module is a microphone.
- the audio interface adaptation apparatus in this embodiment includes: an audio interface, a microphone M1, a microphone M2, a diode D1, and a diode D2. among them:
- the audio interface consists of pin 1, pin 2, pin 3, and pin 4.
- Pin 1 and pin 2 are audio pins, which can be left channel pin and right channel pin respectively.
- pin 3 and pin 4 can be used as MIC pin and GND tube respectively. Use the pin as the GND pin and MIC pin, respectively.
- the audio interface of the present invention can be any four-segment earphone plug or jack, such as a headphone jack or headphone jack having a diameter of 3.5 mm or 2.5 mm.
- Pin 1 (left channel pin) and pin 2 (right channel pin) of the audio interface are respectively connected to one end of the microphone M1 and the microphone M2, and the other ends of the microphone M1 and the microphone M2 are connected to the diode D1 and the diode D2, respectively.
- the positive poles are connected, and the negative poles of diode D1 and diode D2 are respectively connected to the audio.
- Pin 3 and pin 4 are connected.
- the above diode may be a manifold.
- the audio signal receiving apparatus of the present invention can be directly inserted into the headphone jack of the audio signal transmitting apparatus (for example, a smartphone); if the audio interface of the present invention is a headphone jack, You can connect the headphones of the smartphone with the adapter cable with the headphone plug on both ends.
- the audio signal receiving device using the audio interface adapting apparatus of this embodiment may be a headphone, a headset, a speaker, or the like.
- the audio signal receiving device When the audio signal receiving device provided with the above audio interface adapting device is connected to the audio signal transmitting device, the audio signal receiving device can successfully pass regardless of the type of the pin 3 and the pin 4 of the audio interface of the audio signal transmitting device.
- the audio signal transmitting device detects and recognizes pin 1 and pin 2 (ie, audio pin), and normally uses pin 1 and pin 2 for audio signal reception and processing.
- the pin 3 and the pin 4 may be connected by a bidirectional conductive component, such as a resistor R1.
- the resistance of the bidirectional conductive component may be: 7.7 ⁇ ⁇ 15 ⁇ ⁇ , generally 10 ⁇ ⁇ , 12 ⁇ or 15 ⁇ .
- the audio signal receiving device of the present invention can successfully detect and recognize the MIC pin through the audio signal transmitting device.
- a bidirectional conductive member e.g., a resistor
- FIG. 3 is a schematic structural view of a second embodiment of an audio interface adaptation device and an audio signal receiving device according to the present invention.
- the unidirectional conductive device is a diode
- the signal processing modules are respectively a resistor and a transformer Ul.
- the second embodiment of the present invention differs from the first embodiment in the type of signal processing module.
- the signal processing module connected to pin 1 (or pin 2) of the audio interface is a transformer;
- the signal processing module connected to pin 2 (or pin 1) of the audio interface is a resistor R2, and its resistance is The range can be: 4 ⁇ or more, generally 8 ⁇ , 16 ⁇ or 32 ⁇ .
- the pin 1 of the audio interface is connected to one end of the primary coil of the transformer, and the other end of the primary coil is connected to the anodes of the diode D1 and the diode D2.
- the audio signal receiving apparatus of the audio interface adapting apparatus of the present embodiment may further include an audio signal receiving unit connected to both ends of the secondary coil of the transformer, and receiving the amplified audio signal for corresponding processing.
- the pin 1 and the pin 2 of the audio interface can be respectively connected to the transformers U1 and U2; the two ends of the secondary coils of U1 and U2 can be connected to one or two audio signal receiving units respectively.
- FIG. 4 is a schematic structural view of a third embodiment of an audio interface adaptation device and an audio signal receiving device according to the present invention.
- the unidirectional conductive device is a diode
- the signal processing module includes a parallel resistor and a comparator.
- the third embodiment of the present invention differs from the first embodiment in the type of signal processing module.
- the signal processing module connected to the pin 1 of the audio interface comprises a parallel resistor R2 and a comparator C1;
- the signal processing module connected to the pin 2 of the audio interface comprises a resistor R3 and a comparator C2 connected in parallel.
- Pin 1 is connected to one end of resistor R2 and one input of comparator C1 (eg, positive), and the other end of resistor R2 and the other input of comparator C1 (eg, negative) are connected to the anodes of diode D1 and diode D2. .
- Pin 2 is connected to one end of resistor R3 and one input of comparator C2 (eg, positive), the other end of resistor R3 and the other input of comparator C2 (eg, negative) and diode D 1 and II
- comparator C2 eg, positive
- comparator C2 eg, negative
- diode D 1 and II The anode of the pole tube D2 is connected.
- the audio signal receiving apparatus of the audio interface adapting apparatus of this embodiment may further include an audio signal receiving unit, and the audio signal receiving unit is connected to the output ends of the comparators C1 and C2, and receives the audio signal processed by the comparator shaping process. Handle accordingly.
- the comparator in this embodiment can also be replaced with an operational amplifier.
- FIG. 5 is a schematic structural view of a fourth embodiment of an audio interface adapting apparatus and an audio signal receiving apparatus according to the present invention.
- the unidirectional conductive device is a PNP type triode
- the signal processing module is a microphone.
- the fourth embodiment of the present invention differs from the first embodiment in that the unidirectional conductive devices are different.
- the unidirectional conductive devices are: a triode T1 and a triode T2. among them:
- the emitter of the transistor T1 is connected to the pin 1 and the pin 2 through the microphone M1 and the microphone M2; the base of the transistor T1 is connected to the pin 3.
- the emitter of the transistor T2 is connected to the pin 1 and the pin 2 through the microphone M1 and the microphone M2; the base of the transistor T2 is connected to the pin 4.
- the collectors of the transistors T1 and T2 can be left floating.
- the first signal processing module (microphone M1) and the second signal processing module (microphone M2) in this embodiment may also be replaced by: a resistor and a transformer U1, Or replace it with a signal processing module that includes parallel resistors and comparators.
- FIG. 6 is a schematic structural view of a fifth embodiment of an audio interface adapting apparatus and an audio signal receiving apparatus according to the present invention.
- the unidirectional conductive device is an NPN type triode
- the signal processing module is a microphone.
- the fifth embodiment of the present invention differs from the first embodiment in that the unidirectional conductive devices are different.
- the unidirectional conductive devices are: a triode T1 and a triode T2. among them:
- the base of the transistor T1 is connected to the pin 1 and the pin 2 through the microphone M1 and the microphone M2; the emitter of the transistor T1 is connected to the pin 3.
- the base of the transistor T2 is connected to the pin 1 and the pin 2 through the microphone M1 and the microphone M2; the emitter of the diode T2 is connected to the pin 4.
- the collectors of the transistors T1 and T2 can be left floating.
- the first signal processing module (microphone M1) and the second signal processing module (microphone M2) in this embodiment may also be replaced by: a resistor and a transformer U1, Or replace it with a signal processing module that includes parallel resistors and comparators.
- Figure ⁇ is a schematic structural view of a sixth embodiment of the audio interface adaptation device and the audio signal receiving device of the present invention.
- the unidirectional conductive device is an N-channel junction MOS transistor
- the signal processing module is a microphone.
- the sixth embodiment of the present invention differs from the first embodiment in that the unidirectional conductive devices are different.
- the unidirectional conductive devices are: a MOS transistor F1 and a MOS transistor F2. among them:
- the source of the MOS transistor F1 is connected to the pin 1 and the pin 2 through the microphone M1 and the microphone M2; the gate of the MOS transistor F1 is connected to the pin 3.
- the source of the MOS transistor F2 is connected to the pin 1 and the pin 2 through the microphone M1 and the microphone M2; the gate of the MOS transistor F2 is connected to the pin 4.
- the drains of the MOS transistors F1 and F2 can be left floating.
- the first signal processing module (microphone M1) and the second signal processing module (microphone M2) in this embodiment may also be replaced by: a resistor and a transformer U1. Or replace it with a signal processing module that includes parallel resistors and comparators. Seventh embodiment
- the unidirectional conductive device is a P-channel junction MOS transistor
- the signal processing module is a microphone.
- the seventh embodiment of the present invention differs from the first embodiment in that the unidirectional conductive devices are different.
- the unidirectional conductive devices are: a MOS transistor F1 and a MOS transistor F2. among them:
- the gate of the MOS transistor F1 is connected to the pin 1 and the pin 2 through the microphone M1 and the microphone M2; the source of the MOS transistor F1 is connected to the pin 3.
- the gate of the MOS transistor F2 is connected to the pin 1 and the pin 2 through the microphone M1 and the microphone M2; the source of the MOS transistor F2 is connected to the pin 4.
- the drains of the MOS transistors F1 and F2 can be left floating.
- the first signal processing module (microphone M1) and the second signal processing module (microphone M2) in this embodiment may also be replaced by: a resistor and a transformer U1, Or replace it with a signal processing module that includes parallel resistors and comparators.
- the above embodiment may have other modifications.
- the first unidirectional conductive device and the second unidirectional conductive device may be different types of components, for example, the first unidirectional conductive device is a diode.
- the second unidirectional conductive device is a triode.
- the pin 1 and the pin 2 of the audio interface are connected to the unidirectional conductive device through the signal processing module.
- one of the pin 1 or the pin 2 may pass through the signal processing module and the unidirectional conductive device. Connected, the other is directly connected to the unidirectional conductive device.
- first unidirectional conductive device and the second unidirectional conductive device in the above embodiments may be integrated in a single chip, such as the BAT54 series.
- the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope of the present disclosure. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.
Abstract
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP12865732.7A EP2806655B1 (en) | 2012-01-18 | 2012-12-28 | Audio interface adapter device and audio signal receiving apparatus |
US14/347,433 US9179216B2 (en) | 2012-01-18 | 2012-12-28 | Audio interface adapter device and audio signal receiving apparatus |
CA2845107A CA2845107C (en) | 2012-01-18 | 2012-12-28 | Audio interface adapter device and audio signal receiving apparatus |
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CN201210016852.0 | 2012-01-18 | ||
CN201210016852.0A CN103220598B (zh) | 2012-01-18 | 2012-01-18 | 一种音频接口适配装置及音频信号接收设备 |
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US (1) | US9179216B2 (zh) |
EP (1) | EP2806655B1 (zh) |
CN (1) | CN103220598B (zh) |
CA (1) | CA2845107C (zh) |
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CN102883255B (zh) * | 2012-09-13 | 2014-12-03 | 天地融科技股份有限公司 | 转接装置、电子签名工具、检测装置和接口检测系统 |
CN106331948A (zh) * | 2015-07-01 | 2017-01-11 | 朗新科技股份有限公司 | 具有自适配功能的手机音频接口通信设备 |
CN105430004A (zh) * | 2015-12-22 | 2016-03-23 | 上海爱信诺航芯电子科技有限公司 | 耳机接口标准的音频密码钥匙及接口适配方法 |
US9872117B2 (en) * | 2016-03-01 | 2018-01-16 | Blackberry Limited | Device and method for adjusting an output to an audio port based on a determined sensitivity |
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- 2012-12-28 WO PCT/CN2012/087889 patent/WO2013107271A1/zh active Application Filing
- 2012-12-28 CA CA2845107A patent/CA2845107C/en active Active
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Also Published As
Publication number | Publication date |
---|---|
CN103220598B (zh) | 2016-03-30 |
US9179216B2 (en) | 2015-11-03 |
HK1184945A1 (zh) | 2014-01-30 |
EP2806655A4 (en) | 2015-07-29 |
CN103220598A (zh) | 2013-07-24 |
CA2845107C (en) | 2016-10-04 |
CA2845107A1 (en) | 2013-07-25 |
US20150016624A1 (en) | 2015-01-15 |
EP2806655B1 (en) | 2016-09-14 |
EP2806655A1 (en) | 2014-11-26 |
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