CN111432308A - Audio communication circuit, electronic equipment and audio communication test system - Google Patents

Audio communication circuit, electronic equipment and audio communication test system Download PDF

Info

Publication number
CN111432308A
CN111432308A CN202010236442.1A CN202010236442A CN111432308A CN 111432308 A CN111432308 A CN 111432308A CN 202010236442 A CN202010236442 A CN 202010236442A CN 111432308 A CN111432308 A CN 111432308A
Authority
CN
China
Prior art keywords
audio
audio communication
electrically connected
communication circuit
output 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.)
Pending
Application number
CN202010236442.1A
Other languages
Chinese (zh)
Inventor
昝双玮
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.)
Shanghai Wingtech Electronic Technology Co Ltd
Original Assignee
Shanghai Wingtech Electronic Technology Co Ltd
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
Application filed by Shanghai Wingtech Electronic Technology Co Ltd filed Critical Shanghai Wingtech Electronic Technology Co Ltd
Priority to CN202010236442.1A priority Critical patent/CN111432308A/en
Publication of CN111432308A publication Critical patent/CN111432308A/en
Pending legal-status Critical Current

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
    • 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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

The embodiment of the invention discloses an audio communication circuit, electronic equipment and an audio communication test system, wherein the audio communication circuit comprises: the audio output interface, the first connecting circuit, the second connecting circuit and the audio processing unit; the audio output interface comprises a ground port; one end of the first connecting circuit and one end of the second connecting circuit are both electrically connected with the ground port; the other end of the first connecting circuit is grounded; the other end of the second connecting line is electrically connected with the audio processing unit; the connection point of one end of the first connection line and one end of the second connection line is located at the ground port. The audio communication circuit, the electronic equipment and the audio communication test system disclosed by the embodiment of the invention can improve the accuracy of crosstalk test.

Description

Audio communication circuit, electronic equipment and audio communication test system
Technical Field
The embodiment of the invention relates to the field of earphone detection, in particular to an audio communication circuit, electronic equipment and an audio communication test system.
Background
Communication crosstalk is noise on a line caused by coupling between two signal lines, mutual inductance and mutual capacitance between signal lines. The earphone communication crosstalk is one of important indexes for measuring the stereo sound quality, and the earphone communication crosstalk can seriously affect the hearing of a product, so that the crosstalk test is extremely important.
Because a certain distance is reserved between the connection point of the grounding lead and the reference feedback lead of the audio communication circuit and the grounding port of the audio output interface, and the impedance of the line between the connection point of the grounding lead and the reference feedback lead of the audio communication circuit and the grounding port of the audio output interface influences the reference level signal value received by the reference feedback lead when testing the earphone communication crosstalk electric signals, the test accuracy of the earphone communication crosstalk electric signals can be influenced by the arrangement mode of the existing audio communication circuit.
Disclosure of Invention
The embodiment of the invention provides an audio communication circuit, electronic equipment and an audio communication test system, and aims to improve the accuracy of crosstalk test and solve the problem that a reference level signal is not accurately obtained during crosstalk test.
To achieve the object, in a first aspect, an embodiment of the present invention provides an audio communication circuit, including:
the audio output interface, the first connecting circuit, the second connecting circuit and the audio processing unit;
the audio output interface comprises a ground port;
one end of the first connecting circuit and one end of the second connecting circuit are both electrically connected with the ground port; the other end of the first connecting circuit is grounded; the other end of the second connecting line is electrically connected with the audio processing unit;
the connection point of one end of the first connection line and one end of the second connection line is located at the ground port.
Optionally, the audio communication circuit further includes a switch unit, and the audio output interface further includes a microphone port;
the switch unit comprises a first output end, a second output end and a switch grounding end; the second output end of the switch unit is electrically connected with the audio processing unit;
the switch unit is used for receiving a first control signal sent by the terminal processor, controlling the conduction of a first output end and the microphone port according to the first control signal, and controlling the conduction of a second output end and the grounding port;
or, the first output terminal is used for receiving a first control signal sent by the terminal processor, and controlling the conduction of the first output terminal and the grounding port according to the second control signal, and the conduction of the second output terminal and the microphone port.
Optionally, the optical fiber connector further includes a third connection line and a fourth connection line; the switch unit comprises a first switch unit and a second switch unit;
the first switch unit comprises a first input end, a second input end and the first output end; the first input end is electrically connected with the second connecting line; the second input end is electrically connected with the fourth connecting line;
the second switch unit comprises a third input end, a fourth input end and a second output end; the third input end is electrically connected with the first connecting circuit; the fourth input end is electrically connected with the third connecting line;
the third connecting line and the fourth connecting line are electrically connected with the microphone port; the second switch unit includes the ground terminal; a connection point of the third connection line and the fourth connection line is located at the microphone port.
Optionally, the first switch unit comprises a first single-pole double-throw switch; the second switch unit includes a second single pole double throw switch.
Optionally, the audio processing unit includes an audio decoder.
Optionally, the method further includes: an audio signal test unit; the audio signal testing unit is respectively electrically connected with the audio processing unit and the audio output interface; the audio signal testing unit is used for determining an audio communication crosstalk result according to the reference feedback signal sent by the audio processing unit and the audio signal sent by the audio output interface.
In a second aspect, an embodiment of the present invention further provides an electronic device, where the electronic device employs the audio communication circuit described in any one of the above first aspects.
In a third aspect, an embodiment of the present invention further provides an audio communication testing system, where the audio communication testing system includes:
an audio signal testing unit and the audio communication circuit of any of the above first aspects;
the audio signal testing unit is respectively electrically connected with the audio processing unit and the audio output interface; the audio signal testing unit is used for determining an audio communication crosstalk result according to the reference feedback signal sent by the audio processing unit and the audio signal sent by the audio output interface.
The audio communication circuit comprises an audio output interface, a first connecting circuit, a second connecting circuit and an audio processing unit, wherein the first connecting circuit is grounded through leading the first connecting circuit and the second connecting circuit out of a ground port of the audio output interface, the second connecting circuit is electrically connected with the audio processing unit so as to collect a reference feedback signal of the audio output interface, and the connecting point of the first connecting circuit and the second connecting circuit is arranged at a ground port of the audio output interface so as to avoid the influence of impedance between the connecting point of the first connecting circuit and the second connecting circuit and the ground port on the collected reference feedback signal, so that the reference feedback signal collected by the second connecting circuit is closer to the actual value of the ground port, the accuracy of crosstalk testing is improved.
Drawings
Fig. 1 is a schematic structural diagram of an audio communication circuit according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an audio communication circuit according to another embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an audio communication circuit according to another embodiment of the present invention.
Fig. 4 is a schematic structural diagram of an audio communication circuit corresponding to a first standard earphone according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of an audio communication circuit corresponding to a second standard earphone according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of an audio communication circuit according to another embodiment of the present invention.
Fig. 7 is a schematic diagram of an electronic device according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of an audio communication testing system according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the embodiments of the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts.
According to the audio communication circuit provided by the embodiment of the invention, the audio processing unit in the audio communication circuit can detect the communication crosstalk by acquiring the reference feedback signal of the audio output interface. The audio communication circuit provided by the embodiment of the invention can be suitable for three-section earphones or four-section earphones, and can also be used for detecting American standard earphones or European standard earphones and the like.
Fig. 1 is a schematic structural diagram of an audio communication circuit according to an embodiment of the present invention, and as shown in fig. 1, the audio communication circuit includes:
an audio output interface 10, a first connection line 20, a second connection line 30 and an audio processing unit 40;
the audio output interface 10 includes a ground port GND;
one end of the first connection line 20 and one end of the second connection line 30 are both electrically connected to the ground port GND; the other end of the first connection line 20 is grounded; the other end of the second connection line 30 is electrically connected with the audio processing unit 40;
a connection point of one end of the first connection line 20 and one end of the second connection line 30 is located at the ground port GND.
The audio output interface 10 comprises an earphone socket, and the ground port GND comprises a ground pin of the earphone socket. The first connecting line 20 and the second connecting line 30 are led out through the ground port GND of the audio output interface 10, so that the connection point of the first connecting line 20 and the second connecting line 30 is located at the ground port GND, the first connecting line 20 is set to be grounded, the audio output interface 10 is connected with the audio processing unit 40 through the second connecting line 30, and a reference feedback signal is output to the audio processing unit 40, so that communication crosstalk is detected. The level of the ground port GND is obtained by the second connection line 30, so that the influence of the grounding of the first connection line 20 on the output of the reference feedback signal from the second connection line 30 to the audio processing unit 40 can be effectively avoided, the reference feedback signal collected by the audio processing unit 40 is closer to the actual signal of the ground port GND, and the accuracy of crosstalk testing is improved.
Fig. 2 is a schematic structural diagram of an audio communication circuit according to another embodiment of the present invention. The embodiment of the invention can identify the earphones with different standards and can detect the communication crosstalk of the earphones with different standards. As shown in fig. 2, optionally, the audio communication circuit further includes a switch unit 50; the audio output interface 10 further comprises a microphone port MIC;
the switching unit 50 includes a first output terminal Y1, a second output terminal Y2, and a switch ground terminal GND 1; the second output terminal Y2 of the switching unit 50 is electrically connected to the audio processing unit 40;
the switch unit 50 is configured to receive a first control signal sent by the terminal processor, and control the first output terminal Y1 to be conducted with the microphone port MIC according to the first control signal, and control the second output terminal Y2 to be conducted with the ground port GND;
or, the second output terminal Y2 is configured to receive a second control signal sent by the terminal processor, and control the first output terminal Y1 to be conducted with the ground port GND and the second output terminal Y2 to be conducted with the microphone port MIC according to the second control signal.
The first control signal and the second control signal are pulse signals for controlling the switching action, and can be sent out by a processor of the terminal for controlling the switching action according to requirements. The audio communication circuit provided by the application also has an European and American standard identification switching function, and the difference between the European standard earphone and the American standard earphone lies in the interchange of the grounding end of the earphone and the end position of the microphone of the earphone. Therefore, in order to prevent the port connection errors of the earphones with different standards after the earphones are inserted into the audio output interface, the method and the device can perform European and American identification switching. The ground port of the earphone is connected to the ground port GND of the audio output interface 10 through the switching unit 50, while the microphone end of the earphone is also connected to the microphone port MIC of the audio output interface 10. By utilizing the switch unit 50, the identification and the switching of the European and American standard earphones are simply and effectively realized, the application range of the audio communication circuit is improved, the applicability of the audio communication circuit is enhanced, and the experience of a user is improved.
Fig. 3 is a schematic diagram of an audio communication circuit according to another embodiment of the present invention, as shown in fig. 3, the audio communication circuit further includes a third connection line 70 and a fourth connection line 80; the switching unit 50 includes a first switching unit 51 and a second switching unit 52;
the first switching unit 51 includes a first input terminal X1, a second input terminal X2, and a first output terminal Y1; the first input X1 is electrically connected to the second connection 30; the second input X2 is electrically connected to the fourth connection 80;
the second switching unit 52 includes a third input terminal X3, a fourth input terminal X4, and a second output terminal Y2; the third input terminal X3 is electrically connected to the first connection line 20; the fourth input X4 is electrically connected to the third connection 70;
the third connection line 70 and the fourth connection line 80 are both electrically connected with the microphone port MIC; the second switching unit 52 includes a switch ground GND 1; the connection point of the third connection line 70 and the fourth connection line 80 is located at the microphone port MIC.
Third connecting line 70 and fourth connecting line 80 are drawn out through microphone port MIC of audio output interface 10, so that the connection point of third connecting line 70 and fourth connecting line 80 is located at microphone port MIC, and the condition that the connection point of third connecting line 70 and fourth connecting line 80 is too far away from audio output interface 10, thereby influencing crosstalk test, is avoided. For example, fig. 4 is a schematic diagram of an audio communication circuit structure corresponding to a first standard earphone according to an embodiment of the present invention, as shown in fig. 4, where the first standard earphone may be an euro-standard earphone, and when a ground terminal GND2 and a microphone terminal MIC2 of the earphone are matched with a ground port GND and a microphone port MIC of an audio output interface 10, the microphone port MIC of the audio output interface 10 is connected to a fourth input terminal X4 of a second switch unit 52 through a third connection line 70, and is connected to a microphone terminal MIC2 of the earphone through a second output terminal Y2 by a second switch unit 52; the ground port GND of the audio output interface 10 is connected to the first input terminal X1 of the first switch unit 51 through the second connection line 30, and is connected to the ground terminal GND2 of the earphone through the first switch unit 51 by the first output terminal Y2. For example, fig. 5 is a schematic diagram of an audio communication circuit structure corresponding to a second standard earphone according to an embodiment of the present invention, as shown in fig. 5, where the second standard earphone may be a standard earphone, and when a ground terminal GND2 and a microphone terminal MIC2 of the earphone are opposite to a ground port GND and a microphone port MIC of an audio output interface 10, the microphone port MIC of the audio output interface 10 is connected to a second input terminal X2 of a first switch unit 51 through a fourth connection line 80, and is connected to a microphone terminal MIC2 of the earphone through the first switch unit 51; the ground port GND of the audio output interface 10 is connected to the third input terminal X3 of the second switch unit 52 through the first connection line 20, and is connected to the earphone ground terminal GND2 through the second switch unit 52. The earphone identification switching of European and American standards is ensured to be accurate.
Optionally, the first switch unit 51 includes a first single-pole double-throw switch 511; the second switching unit 52 includes a second single pole double throw switch 521.
By arranging the first switch unit 51 and the second switch unit 52 as single-pole double-throw switches, the grounding of the grounding port of the audio output interface and the signal communication between the audio output interface and the audio processing unit can be controlled simply and conveniently. The method is simple to operate, and the recognition and switching efficiency of the European and American standard earphones is improved.
Optionally, the audio processing unit comprises an audio decoder.
The audio processing unit comprises an audio decoder (audio codec), a digital channel in the audio decoder has a coding decoding function and can process audio information, and a collected reference feedback signal can be converted from an analog signal to a digital signal or from a digital signal to an analog signal by using the audio decoder so as to perform analysis processing, wherein the reference feedback signal comprises a level value of an audio output interface. The reference feedback signal is collected through the audio decoder, and the reference feedback signal is converted and processed, so that test parameters are provided for communication crosstalk, the fact that the reference feedback signal is collected is guaranteed to be real and effective, and the accuracy of the communication crosstalk is improved.
Fig. 6 is a schematic structural diagram of an audio communication circuit according to another embodiment of the present invention, as shown in fig. 6, optionally, the audio communication circuit further includes: an audio signal test unit 90; the audio signal testing unit 90 is electrically connected to the audio processing unit 40 and the audio output interface 10, respectively; the audio signal testing unit 90 is configured to determine an audio communication crosstalk result according to the reference feedback signal sent by the audio processing unit 40 and the audio signal sent by the audio output interface 10.
The audio signal testing unit 90 is integrated in the audio communication circuit in the embodiment of the present invention, so that the communication crosstalk can be automatically calculated without the need of external detection equipment for detection. The factory return detection of the electronic device having the audio transmission function can be avoided.
Fig. 7 is a schematic diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 7, an electronic device 100 employs an audio communication circuit according to any embodiment of the present invention. Through the audio communication circuit in the electronic device 100, the reference feedback information of the audio output interface is collected, so that the influence of the impedance between the connection point of the first connection circuit and the second connection circuit and the grounding port on the collected reference feedback signal is avoided, the reference feedback signal collected by the audio processing unit is closer to the actual signal of the grounding port, the authenticity of collecting the reference feedback signal is improved, and the accuracy of the communication crosstalk test is improved. In addition, the electronic device 100 may be a mobile phone shown in fig. 7, or may be a computer, a television, an intelligent wearable display device, and the like, which is not particularly limited in this embodiment of the present invention.
Fig. 8 is a schematic structural diagram of an audio communication testing system according to an embodiment of the present invention, and as shown in fig. 8, the audio communication testing system includes:
an audio signal testing unit 120 and the audio communication circuit 110;
the audio signal testing unit 120 is electrically connected to the audio processing unit 40 and the audio output interface 10, respectively; the audio signal testing unit 120 is configured to determine an audio communication crosstalk result according to the reference feedback signal sent by the audio processing unit 40 and the audio signal sent by the audio output interface 10.
The audio signal testing device 120 includes, for example, an audio analyzer, and performs an audio communication crosstalk test on the reference feedback signal collected by the audio processing unit 40 and the audio signal sent by the audio output interface 10 through the audio signal testing device 120, for example, a tester connects to the audio communication circuit 110 through the audio signal testing device 120, obtains the reference feedback signal sent by the audio processing unit 40 and the audio signal sent by the audio output interface 10 through the audio communication circuit 110, and obtains a result of the audio communication crosstalk through analysis and processing of the audio signal testing device 120. By using the connection point of the first connection circuit 20 and the second connection circuit 30 in the audio communication circuit 110 to be located at the ground port GND, the influence of the grounding of the first connection circuit 20 on the output of the reference feedback signal from the second connection circuit 30 to the audio processing unit 40 is effectively avoided, and the authenticity of the reference feedback signal collected by the audio processing unit 40 is improved, so that the accuracy of the audio signal testing device 120 in detecting the audio communication crosstalk is improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (8)

1. An audio communication circuit, comprising:
the audio output interface, the first connecting circuit, the second connecting circuit and the audio processing unit;
the audio output interface comprises a ground port;
one end of the first connecting circuit and one end of the second connecting circuit are both electrically connected with the ground port; the other end of the first connecting circuit is grounded; the other end of the second connecting line is electrically connected with the audio processing unit;
the connection point of one end of the first connection line and one end of the second connection line is located at the ground port.
2. The audio communication circuit according to claim 1, further comprising a switching unit;
the audio output interface further comprises a microphone port;
the switch unit comprises a first output end, a second output end and a switch grounding end; the second output end of the switch unit is electrically connected with the audio processing unit;
the switch unit is used for receiving a first control signal sent by the terminal processor, controlling the conduction of a first output end and the microphone port according to the first control signal, and controlling the conduction of a second output end and the grounding port;
or receiving a second control signal sent by the terminal processor, and controlling the conduction of the first output end and the grounding port and the conduction of the second output end and the microphone port according to the second control signal.
3. The audio communication circuit of claim 2, further comprising a third connection and a fourth connection; the switch unit comprises a first switch unit and a second switch unit;
the first switch unit comprises a first input end, a second input end and the first output end; the first input end is electrically connected with the second connecting line; the second input end is electrically connected with the fourth connecting line;
the second switch unit comprises a third input end, a fourth input end and a second output end; the third input end is electrically connected with the first connecting circuit; the fourth input end is electrically connected with the third connecting line;
the third connecting line and the fourth connecting line are electrically connected with the microphone port; the second switch unit includes the switch ground terminal; a connection point of the third connection line and the fourth connection line is located at the microphone port.
4. The audio communication circuit of claim 3, wherein the first switch unit comprises a first single pole double throw switch; the second switch unit includes a second single pole double throw switch.
5. The audio communication circuit of claim 1, wherein the audio processing unit comprises an audio decoder.
6. The audio communication circuit of claim 1, further comprising: an audio signal test unit; the audio signal testing unit is respectively electrically connected with the audio processing unit and the audio output interface; the audio signal testing unit is used for determining an audio communication crosstalk result according to the reference feedback signal sent by the audio processing unit and the audio signal sent by the audio output interface.
7. An electronic device comprising the audio communication circuit of any of claims 1-6.
8. An audio communication test system, comprising:
an audio signal testing unit and an audio communication circuit according to any one of claims 1 to 5;
the audio signal testing unit is respectively electrically connected with the audio processing unit and the audio output interface; the audio signal testing unit is used for determining an audio communication crosstalk result according to the reference feedback signal sent by the audio processing unit and the audio signal sent by the audio output interface.
CN202010236442.1A 2020-03-30 2020-03-30 Audio communication circuit, electronic equipment and audio communication test system Pending CN111432308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010236442.1A CN111432308A (en) 2020-03-30 2020-03-30 Audio communication circuit, electronic equipment and audio communication test system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010236442.1A CN111432308A (en) 2020-03-30 2020-03-30 Audio communication circuit, electronic equipment and audio communication test system

Publications (1)

Publication Number Publication Date
CN111432308A true CN111432308A (en) 2020-07-17

Family

ID=71549918

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010236442.1A Pending CN111432308A (en) 2020-03-30 2020-03-30 Audio communication circuit, electronic equipment and audio communication test system

Country Status (1)

Country Link
CN (1) CN111432308A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111901727A (en) * 2020-07-30 2020-11-06 维沃移动通信有限公司 Audio control circuit and electronic equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102542320A (en) * 2010-12-10 2012-07-04 上海华虹Nec电子有限公司 Radio frequency identification (RFID) chip structure and test method for reducing test crosstalk
CN104466544A (en) * 2014-12-08 2015-03-25 小米科技有限责任公司 Earphone socket, earphone plug, earphones and electronic device
US20160142810A1 (en) * 2014-11-19 2016-05-19 Fairchild Semiconductor Corporation Remote ground sensing for reduced crosstalk of headset and microphone audio signals
CN105975422A (en) * 2016-05-27 2016-09-28 北京小米移动软件有限公司 Switching equipment, terminal and switching method
JP2018142800A (en) * 2017-02-27 2018-09-13 レノボ・シンガポール・プライベート・リミテッド Headset jack circuit and electronic apparatus
CN110321098A (en) * 2019-06-21 2019-10-11 维沃移动通信有限公司 A kind of terminal device, audio frequency broadcast system and voicefrequency circuit
CN110719548A (en) * 2018-07-12 2020-01-21 中兴通讯股份有限公司 Audio processing device, audio crosstalk processing method and device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102542320A (en) * 2010-12-10 2012-07-04 上海华虹Nec电子有限公司 Radio frequency identification (RFID) chip structure and test method for reducing test crosstalk
US20160142810A1 (en) * 2014-11-19 2016-05-19 Fairchild Semiconductor Corporation Remote ground sensing for reduced crosstalk of headset and microphone audio signals
CN104466544A (en) * 2014-12-08 2015-03-25 小米科技有限责任公司 Earphone socket, earphone plug, earphones and electronic device
CN105975422A (en) * 2016-05-27 2016-09-28 北京小米移动软件有限公司 Switching equipment, terminal and switching method
JP2018142800A (en) * 2017-02-27 2018-09-13 レノボ・シンガポール・プライベート・リミテッド Headset jack circuit and electronic apparatus
CN110719548A (en) * 2018-07-12 2020-01-21 中兴通讯股份有限公司 Audio processing device, audio crosstalk processing method and device
CN110321098A (en) * 2019-06-21 2019-10-11 维沃移动通信有限公司 A kind of terminal device, audio frequency broadcast system and voicefrequency circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111901727A (en) * 2020-07-30 2020-11-06 维沃移动通信有限公司 Audio control circuit and electronic equipment

Similar Documents

Publication Publication Date Title
KR101646964B1 (en) Circuit apparatus and method for recognition earphone in electronic device
CN100343837C (en) Identification system and method for recognizing any one of a number of different types of devices
KR101636771B1 (en) Circuit apparatus and method for recognition earphone in electronic device
KR100871260B1 (en) Apparatus for detecting the earjack plug
US20160269844A1 (en) Stereo headset, terminal, and audio signal processing methods thereof
CN207783087U (en) Wireless earphone circuit with wired function and wireless headset
KR101878873B1 (en) Mobile Apparatus Capable of Multi Channel Receiving and Outputting Sound Using Common Connector and Operation Method therefor
CN110719548B (en) Audio processing device, audio crosstalk processing method and device
RU2340123C2 (en) Sensor
US8995672B2 (en) System and method for microphone polarity detection
WO2020048298A1 (en) Audio signal processing method and apparatus
CN111432308A (en) Audio communication circuit, electronic equipment and audio communication test system
CN102638745A (en) Earphone compatible method and system for terminal equipment and interface circuit of terminal equipment
CN105975422B (en) A kind of switching equipment, terminal and switching method
CN102457790B (en) Active noise reduction earphone and earphone detection device
CN103634723B (en) Audio input circuit and the electronic equipment with audio input
KR20110019841A (en) Method and apparatus for improving audio channel cross talk in portable terminal
CN105120390A (en) Headphone socket, headphone plug and electronic device
CN204968070U (en) Earphone socket, Headphone plug and electronic equipment
CN107438222A (en) It is a kind of to break and short-circuit detecting circuit and method towards earphone/headset loudspeaker
EP3690633B1 (en) Signal transmission circuit, signal transmission method and intelligent terminal
US20060050891A1 (en) Method for automatic loudspeaker polarity determination through loudspeaker-room acoustic responses
CN104599672A (en) Audio encoder/decoder with audio insertion-connection detection capacity and audio insertion-connection detecting method
CN210247013U (en) Earphone interface recognition circuit and equipment thereof
CN110572732B (en) Earphone standard and impedance measuring device and method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20200717