CN206149480U - Audio processing circuit and earphone - Google Patents
Audio processing circuit and earphone Download PDFInfo
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- CN206149480U CN206149480U CN201621126373.4U CN201621126373U CN206149480U CN 206149480 U CN206149480 U CN 206149480U CN 201621126373 U CN201621126373 U CN 201621126373U CN 206149480 U CN206149480 U CN 206149480U
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Abstract
The utility model relates to an audio circuit technical field especially relates to an audio processing circuit and earphone. The utility model discloses in, does this audio processing circuit utilize type the c interface is as data interactive interface, will type in addition, through setting up change over switch, be followed quick, conveniently to number / the mould audio input signal dual mode that audio processing circuit is compatible C interface type's digital audio signal or analog audio signal switch the distribution, and based on this, the user can improve the convenient to use degree according to the incoming signal type of the selection earphone that its demand is free greatly.
Description
Technical field
This utility model is related to voicefrequency circuit technical field, more particularly to a kind of audio frequency processing circuit and earphone.
Background technology
Intelligent terminal become 21 century it is the most frequently used, most easily means of communication, quickly growing in recent ten years.State
The outward appearance of terminal is accomplished the limit to bring ultimate attainment experience to user by inside and outside each big manufacturer terminal.Ear general at present
Machine interface is 3.5mm, and this interface specification not only limit terminal minimum thickness on stream, also have impact on device cloth
Office, cabling etc..And the type-c digital earphones that some manufacturer terminals are proposed at present, original analog audio interface is eliminated, outward
See more succinct.
Therefore, existing intelligent terminal can export simulated audio signal, it is also possible to export digital audio and video signals, do not have at present
There is a kind of earphone quickly and conveniently switch D/A audio input signal, therefore, using very inconvenient.
Utility model content
This utility model embodiment provides a kind of audio frequency processing circuit and earphone, it is intended to which solving existing earphone cannot be fast
Speed, the problem for easily switching D/A audio input signal.
In a first aspect, this utility model embodiment provides a kind of audio frequency processing circuit, including type-c interfaces and electroacoustic
Device, the audio frequency processing circuit also include：
Switching switch, is connected with the type-c interfaces, by the digital audio and video signals being input into from the type-c interfaces or
Simulated audio signal switches over distribution；
Digital audio and video signals processing module, connects the switching switch type-c interfaces and electro-acoustic element, to from described
The digital audio and video signals of type-c interfaces input are processed；And
Simulated audio signal processing module, be connected to it is described switching switch type-c interfaces and electro-acoustic element between, to from
The simulated audio signal of the type-c interfaces input carries out processing on the other hand, and this utility model embodiment provides a kind of ear
Machine, the earphone include above-mentioned audio frequency processing circuit.
In this utility model embodiment, the audio frequency processing circuit is by the use of type-c interfaces as data interaction interface, sound
The compatible D/A audio input signal two ways of frequency process circuit, in addition, by arranging switching switch, quickly and conveniently will
Distribution is switched over from the digital audio and video signals or simulated audio signal of the input of type-c interfaces, based on this, user can be according to which
Demand freely selects the input signal types of earphone, substantially increases degree easy to use.
Description of the drawings
Fig. 1 is the function structure chart of the audio frequency processing circuit that this utility model embodiment is provided；
Fig. 2 is the circuit structure diagram of the audio frequency processing circuit that this utility model first embodiment is provided；
Fig. 3 is the circuit structure diagram of the audio frequency processing circuit that this utility model second embodiment is provided.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain
This utility model, is not used to limit this utility model.
Fig. 1 shows the modular structure of the audio frequency processing circuit that this utility model embodiment is provided, for convenience of description, only
Show the part related to this utility model embodiment.
A kind of audio frequency processing circuit, including type-c interfaces 1 and electro-acoustic element 2, the audio frequency processing circuit also include：
Switching switch 8, is connected with the type-c interfaces 1, the digital audio and video signals that will be input into from the type-c interfaces 1
Or simulated audio signal switches over distribution；
Digital audio and video signals processing module 3, connects the switching switch 8 and electro-acoustic element 2, to from the type-c interfaces
The digital audio and video signals of 1 input are processed；And
Simulated audio signal processing module 4, is connected between the switching switch 8 and electro-acoustic element 2, to from described
The simulated audio signal of the input of type-c interfaces 1 is processed.
Fig. 2 shows the circuit structure of the audio frequency processing circuit that this utility model first embodiment is provided, for the ease of saying
It is bright, illustrate only the part related to this utility model embodiment.
Used as one embodiment of this utility model, the switching switch 8 adopts single-pole double-throw switch (SPDT) K1, the single-pole double throw to open
The selection for closing K1 terminates the type-c interfaces 1, the first fixation termination DAB letter of the single-pole double-throw switch (SPDT) K1
Number processing module 3, the second fixation termination of the single-pole double-throw switch (SPDT) K1 simulated audio signal processing module 4.
The switching mode is manual switching, by operating single-pole double-throw switch (SPDT) K1, the numeral that will be input into from type-c interfaces 1
Audio signal or simulated audio signal switching are distributed to corresponding audio-frequency signal processing module and are processed.
Used as one embodiment of this utility model, the digital audio and video signals processing module 3 includes：
The dsp chip U1 parsed by the digital audio and video signals being input into from the type-c interfaces 1；
Digital audio and video signals after parsing are carried out with encoding and decoding, the codec U2 for amplifying；
The input IN of the dsp chip U1 connects the switching switch 8, and the outfan OUT of the dsp chip U1 connects described
The input IN of codec U2, the outfan OUT of the codec U2 connect the electro-acoustic element 2.
Used as one embodiment of this utility model, the simulated audio signal processing module 4 is using simulated audio signal process
Chip U3, the input IN of simulated audio signal process chip U3 connect the switching switch 8, at the simulated audio signal
The outfan OUT of reason chip U3 connects the electro-acoustic element 2.
Fig. 3 shows the circuit structure of the audio frequency processing circuit that this utility model second embodiment is provided, for the ease of saying
It is bright, illustrate only the part related to this utility model embodiment.
Used as one embodiment of this utility model, the switching switch 8 is using switching chip U4, the inspection of the switching chip U4
Survey signal type end IN and connect the type-c interfaces 1, the first switching outfan OUT1 of the switching chip U4 connects the numeral
Audio-frequency signal processing module 3, the second switching outfan OUT2 of the switching chip U4 connect the simulated audio signal and process mould
Block 4.
The switching mode switches chip U4 detections from the type of the audio signal of the input of type-c interfaces 1 to automatically switch,
Automatically the digital audio and video signals of input or simulated audio signal switching are distributed to corresponding audio-frequency signal processing module to process.
Above audio frequency processing circuit part is earphone portion in actual applications, and digital audio and video signals processing module 3 is can
Module is removed, when earphone is without digital audio and video signals processing module 3, simulation earphone can only be used as and used.
Following audio frequency processing circuit part is handpiece portion in actual applications, corresponding with earphone portion to use：
Used as one embodiment of this utility model, the audio frequency processing circuit also includes：
With the type-c sockets 5 of 1 corresponding connection of the type-c interfaces；
It is connected with the type-c sockets 5, audio signal is processed, output digital audio and video signals to the type-c
The CPU6 of socket 6；And
It is connected between CPU6 the and type-c sockets 5, the digital audio and video signals that the CPU6 is exported is converted into into mould
Intend the codec unit 7 of audio signal to the type-c sockets 5.
Used as one embodiment of this utility model, simulated audio signal is converted into acoustical signal by the electro-acoustic element 2.
Used as one embodiment of this utility model, the type-c interfaces 1 and type-c sockets 5 are USB interface, just support
Reversal connection.
This utility model embodiment also provides a kind of earphone, and the earphone includes above-mentioned audio frequency processing circuit.
The operation principle of the audio frequency processing circuit is：
Digital audio and video signals input mode workflow：
Earphone insertion->User earphone end select digital audio and video signals input->The unlatching of mobile phone TYPE-C audio output->
Dsp chip U1 parsing digital audio and video signals->Codec U2 carries out encoding and decoding, zooms into analogue audio frequency to digital audio and video signals
Signal->Simulated audio signal is converted into acoustical signal by electro-acoustic element 2.
Simulated audio signal input mode workflow：
Earphone insertion->User earphone end select simulated audio signal input->Simulated audio signal process chip U3 pair
Simulated audio signal carries out processing->Simulated audio signal is converted into acoustical signal by electro-acoustic element 2.
In this utility model embodiment, the audio frequency processing circuit is by the use of type-c interfaces as data interaction interface, sound
The compatible D/A audio input signal two ways of frequency process circuit, in addition, by arranging switching switch, quickly and conveniently will
Distribution is switched over from the digital audio and video signals or simulated audio signal of the input of type-c interfaces, based on this, user can be according to which
Demand freely selects the input signal types of earphone, substantially increases degree easy to use.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in this utility model
Protection domain within.
Claims (10)
1. a kind of audio frequency processing circuit, including type-c interface and electro-acoustic element, it is characterised in that the audio frequency processing circuit is also
Including：
Switching switch, is connected with the type-c interfaces, by the digital audio and video signals being input into from the type-c interfaces or simulation
Audio signal switches over distribution；
Digital audio and video signals processing module, connects the switching switch and electro-acoustic element, to what is be input into from the type-c interfaces
Digital audio and video signals are processed；And
Simulated audio signal processing module, is connected between the switching switch and electro-acoustic element, to from the type-c interfaces
The simulated audio signal of input is processed.
2. audio frequency processing circuit as claimed in claim 1, it is characterised in that the switching switch adopts single-pole double-throw switch (SPDT)
The selection of K1, the single-pole double-throw switch (SPDT) K1 terminates the type-c interfaces, first fixing end of the single-pole double-throw switch (SPDT) K1
The digital audio and video signals processing module is connect, at the second fixation termination simulated audio signal of the single-pole double-throw switch (SPDT) K1
Reason module.
3. audio frequency processing circuit as claimed in claim 1, it is characterised in that the switching switch is using switching chip U4, institute
The detection signal type end IN for stating switching chip U4 connects the type-c interfaces, the first switching outfan of the switching chip U4
OUT1 connects the digital audio and video signals processing module, and the second switching outfan OUT2 of the switching chip U4 connects the analog audio
Audio signalprocessing module.
4. audio frequency processing circuit as claimed in claim 1, it is characterised in that the digital audio and video signals processing module includes：
The dsp chip U1 parsed by the digital audio and video signals being input into from the type-c interfaces；
Digital audio and video signals after parsing are carried out with encoding and decoding, the codec U2 for amplifying；
The input IN of the dsp chip U1 connects the switching switch, and the outfan OUT of the dsp chip U1 connects described volume and solves
The input IN of code device U2, the outfan OUT of the codec U2 connect the electro-acoustic element.
5. audio frequency processing circuit as claimed in claim 1, it is characterised in that the simulated audio signal processing module adopts mould
Intend Audio Signal Processing chip U3, the input IN of simulated audio signal process chip U3 connects the switching switch, described
The outfan OUT of simulated audio signal process chip U3 connects the electro-acoustic element.
6. the audio frequency processing circuit as described in any one of claim 1-5, it is characterised in that the audio frequency processing circuit is also wrapped
Include：
The type-c sockets of connection corresponding with the type-c interfaces；
It is connected with the type-c sockets, audio signal is processed, output digital audio and video signals is to the type-c sockets
CPU；And
It is connected between CPU the and type-c sockets, the digital audio and video signals that the CPU is exported is converted into into analogue audio frequency letter
Number to the type-c sockets codec unit.
7. audio frequency processing circuit as claimed in claim 1, it is characterised in that simulated audio signal is changed by the electro-acoustic element
Into acoustical signal.
8. audio frequency processing circuit as claimed in claim 1, it is characterised in that the type-c interfaces are USB interface, are just supported
Reversal connection.
9. audio frequency processing circuit as claimed in claim 6, it is characterised in that the type-c sockets are USB interface, are just supported
Reversal connection.
10. a kind of earphone, it is characterised in that the earphone includes the audio frequency processing circuit as described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621126373.4U CN206149480U (en) | 2016-10-14 | 2016-10-14 | Audio processing circuit and earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621126373.4U CN206149480U (en) | 2016-10-14 | 2016-10-14 | Audio processing circuit and earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206149480U true CN206149480U (en) | 2017-05-03 |
Family
ID=58621263
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621126373.4U Active CN206149480U (en) | 2016-10-14 | 2016-10-14 | Audio processing circuit and earphone |
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| CN (1) | CN206149480U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109218922A (en) * | 2018-08-27 | 2019-01-15 | 维沃移动通信有限公司 | Control method, terminal and the audio signal output device of output audio signal |
| WO2019015392A1 (en) * | 2017-07-21 | 2019-01-24 | 中兴通讯股份有限公司 | Signal transmission circuit |
| CN110365323A (en) * | 2019-08-28 | 2019-10-22 | 上海爻火微电子有限公司 | Single-pole double-throw switch (SPDT) circuit, analog switch chip and the electronic equipment of TypeC interface |
| CN111698614A (en) * | 2020-05-25 | 2020-09-22 | 歌尔光学科技有限公司 | Audio output circuit and electronic equipment |
-
2016
- 2016-10-14 CN CN201621126373.4U patent/CN206149480U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019015392A1 (en) * | 2017-07-21 | 2019-01-24 | 中兴通讯股份有限公司 | Signal transmission circuit |
| CN109286878A (en) * | 2017-07-21 | 2019-01-29 | 中兴通讯股份有限公司 | A kind of signal circuit |
| US10886916B2 (en) | 2017-07-21 | 2021-01-05 | Zte Corporation | Signal transmission circuit |
| CN109286878B (en) * | 2017-07-21 | 2021-08-31 | 中兴通讯股份有限公司 | Signal transmission circuit |
| CN109218922A (en) * | 2018-08-27 | 2019-01-15 | 维沃移动通信有限公司 | Control method, terminal and the audio signal output device of output audio signal |
| CN109218922B (en) * | 2018-08-27 | 2021-03-23 | 维沃移动通信有限公司 | Control method for outputting audio signal, terminal and audio signal output device |
| CN110365323A (en) * | 2019-08-28 | 2019-10-22 | 上海爻火微电子有限公司 | Single-pole double-throw switch (SPDT) circuit, analog switch chip and the electronic equipment of TypeC interface |
| WO2021036772A1 (en) * | 2019-08-28 | 2021-03-04 | 上海爻火微电子有限公司 | Type c interface single-pole double-throw switch circuit, analog switch chip and electronic device |
| US11451224B2 (en) | 2019-08-28 | 2022-09-20 | Shanghai Yaohuo Microelectronics Co., Ltd. | Single-pole double-throw switch circuit with type-c interface, analog switch chip, and electronic device |
| CN110365323B (en) * | 2019-08-28 | 2024-06-07 | 上海爻火微电子有限公司 | Single-pole double-throw switch circuit of TypeC interface, analog switch chip and electronic equipment |
| CN111698614A (en) * | 2020-05-25 | 2020-09-22 | 歌尔光学科技有限公司 | Audio output circuit and electronic equipment |
| CN111698614B (en) * | 2020-05-25 | 2021-10-26 | 歌尔光学科技有限公司 | Audio output circuit and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210416 Address after: DESAY No. 9789 building, 518057 Guangdong city of Shenzhen province Nanshan District Guangdong streets Shennan Road sign layer 17 layer (natural layer 15) No. 1702-1703 Patentee after: Shenzhen Microphone Holdings Co.,Ltd. Address before: 518040, 21 floor, Times Technology Building, 7028 Shennan Road, Futian District, Guangdong, Shenzhen Patentee before: DONGGUAN GOLDEX COMMUNICATION TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |