CN2403193Y - Voice input/output single-socket interface circuit and single-plug earphone contg. Mike earphone - Google Patents
Voice input/output single-socket interface circuit and single-plug earphone contg. Mike earphone Download PDFInfo
- Publication number
- CN2403193Y CN2403193Y CN 99224457 CN99224457U CN2403193Y CN 2403193 Y CN2403193 Y CN 2403193Y CN 99224457 CN99224457 CN 99224457 CN 99224457 U CN99224457 U CN 99224457U CN 2403193 Y CN2403193 Y CN 2403193Y
- Authority
- CN
- China
- Prior art keywords
- earphone
- mike
- audio signal
- plug
- socket
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to an audio signal input/output interface circuit of an audio signal processor and a containing mike earphone with a single plug wiring circuit, and the mike earphone is matched with the interface circuit. The utility model has the technical proposal which is characterized in that the audio signal input/output interface socket of the audio signal processor is a three-core socket, and the plug of the containing mike earphone is a single pole three-core plug. A mike and the earphone both adopt a common direct current ground wire. The utility model realizes the transmission of the audio input /output of the single plug and the single socket. The utility model has the advantages of easy use and simple structure, and enhances product stages.
Description
The utility model relates to a kind of interface circuit of audio signal I/O of audio signal processor, and the plug bond circuit that contains microphone/ear-headphone that cooperates with this socket circuit.
With the recording recorder is example, its earphone and external Mike usually need be by independently plug, socket are communicated with its main circuit separately, or use the special microphone/ear-headphone that contains with two plugs, five lines, this class technical pattern assembly is many, is not easy to carry, and plug-in mounting uses very inconvenient, the cost height, volume is big, has influenced it and has used with oneself in more conditions, is difficult to improve product specification.Therefore, prior art is not really desirable.
Goal of the invention of the present utility model be to provide a kind of audio signal output/input transfer can by single-socket and single plug match incompatible realization audio signal processor audio frequency output/input interface circuit and contain microphone/ear-headphone.
The audio frequency I/O single-socket interface circuit of the disclosed audio signal processor of present patent application, the major technique characteristics of its technical scheme are: audio frequency output/input interface socket is three core sockets, and a connection-core end of wherein earphone output is through the filter capacitor negative pole, be connected to audio signal output end V by the positive pole of this electric capacity
o, as another output connection-core termination ground wire of earphone, the connection-core termination as Mike's input of this interface socket is gone into the audio signal input end V of audio signal processor in the socket
i, the other end and earphone earth connection are altogether.
For realizing above-mentioned technological invention purpose, the disclosed single plug of present patent application technology contains microphone/ear-headphone, the structure compositing characteristic of its technical scheme is: the plug that itself and audio signal processor plug is the single pole three-prong plug, wherein two connect heart yearns and link with Mike, earphone one end respectively, and another connects heart yearn is to be connected heart yearn with earth connection links after Mike, earphone two other connecting line connect altogether.
The utility model is inserted the goal of the invention that realizes the input of Mike's audio frequency, earpiece audio output by three-way list, the technical scheme key that it proposed is that Mike imports with earphone and exports a shared ground wire, be the audio frequency I/O altogether, but Mike imports and must adopt the direct current ground wire.And in teaching material or usage in the past, the direct current ground wire was not adopted in earphone output, so the key of present technique is to allow audio frequency output also adopt the direct current ground wire.When the electrochemical capacitor that is connected in usually on the ground wire, be set directly at audio process audio output V as interchange ground
oAnd between the earphone, make earphone also adopt the direct current ground wire, just become " stepping-stone to success " of realizing the present technique goal of the invention.Present technique has simple in structure, practical and convenient characteristics, has obtained satisfied effect in practice, and this also improves the grade for product and has created condition.
Describe technology contents of the present utility model in detail below in conjunction with accompanying drawing.
Accompanying drawing is that the circuit of the art of this patent scheme is formed schematic diagram.
As shown in the figure, for reaching the transmission that utilizes single plug, socket to realize the audio signal I/O, the utility model has adopted the microphone/ear-headphone that contains of audio frequency I/O single-socket interface circuit and single plug.Consisting of of its sound intermediate frequency I/O single-socket interface circuit: audio frequency output/input interface socket P1 is three core sockets, and earphone S4 one output connection-core end a wherein is connected to the output V of audio signal processor through filter capacitor C2 negative pole, by the positive pole of this capacitor C 2
o, another connection-core end c as earphone S4 output among the socket P1 is an earth connection, the audio signal input end V as a connection-core end b incoming audio signal processor of Mike's input of this interface socket P1
i, the other end is connected altogether with earphone earth connection c.
In the present embodiment, the single plug that is used with this audio signal I/O single-socket interface circuit contain microphone/ear-headphone, its circuit implementation structure is: it adopts three core single pole plugs and socket P1 to be used, wherein two connect heart yearn a ', b ' and link with earphone S4, Mike M1 one end respectively, and another connects heart yearn c ' and is connected heart yearn with earth connection links after the two other connecting line of Mike M1, earphone S4 connects altogether.
Claims (2)
1, a kind of audio frequency I/O single-socket interface circuit, it is characterized in that audio frequency output/input interface socket (P1) is three core sockets, earphone wherein (S4) output connection-core end (a) is through filter capacitor (C2) negative pole, be connected to audio signal output end V by the positive pole of this electric capacity (C2)
o, in the socket (P1) as another connection-core end (c) earth connection of earphone (S4) output, the audio signal input end V as connection-core end (b) incoming audio signal processor of Mike (M1) input of this interface socket (P1)
i, the other end and earphone earth connection (c) are altogether.
2, the single plug that is used with claim 1 contains microphone/ear-headphone, it is characterized in that the plug that plugs with audio signal processor is the single pole three-prong plug, wherein two connect heart yearns (a ', b ') and link with earphone (S4), Mike (M1) end respectively, and another connects heart yearn (c ') is to be connected heart yearn with earth connection links after Mike (M1), earphone (S4) two other connecting line connect altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99224457 CN2403193Y (en) | 1999-07-08 | 1999-07-08 | Voice input/output single-socket interface circuit and single-plug earphone contg. Mike earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99224457 CN2403193Y (en) | 1999-07-08 | 1999-07-08 | Voice input/output single-socket interface circuit and single-plug earphone contg. Mike earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2403193Y true CN2403193Y (en) | 2000-10-25 |
Family
ID=34014502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99224457 Expired - Fee Related CN2403193Y (en) | 1999-07-08 | 1999-07-08 | Voice input/output single-socket interface circuit and single-plug earphone contg. Mike earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2403193Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8467828B2 (en) | 2007-01-05 | 2013-06-18 | Apple Inc. | Audio I O headset plug and plug detection circuitry |
-
1999
- 1999-07-08 CN CN 99224457 patent/CN2403193Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8467828B2 (en) | 2007-01-05 | 2013-06-18 | Apple Inc. | Audio I O headset plug and plug detection circuitry |
| US9301045B2 (en) | 2007-01-05 | 2016-03-29 | Apple Inc. | Audio I O headset plug and plug detection circuitry |
| US10659874B2 (en) | 2007-01-05 | 2020-05-19 | Apple Inc. | Audio I O headset plug and plug detection circuitry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |