CN101207255B - Audio signal switching device - Google Patents
Audio signal switching device Download PDFInfo
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- CN101207255B CN101207255B CN2006102013270A CN200610201327A CN101207255B CN 101207255 B CN101207255 B CN 101207255B CN 2006102013270 A CN2006102013270 A CN 2006102013270A CN 200610201327 A CN200610201327 A CN 200610201327A CN 101207255 B CN101207255 B CN 101207255B
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- audio signal
- usb
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- transmission line
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Abstract
The invention provides an audio signal switching device, which comprises a first switching sub-device and a secondary switching sub-device. The first switching sub-device comprises an audio connecting plug and a first USB connecting structure, which obtains the audio signal from the audio player and transfers the audio signal to the USB transmission line. The secondary switching sub-device comprises an audio socket and a secondary USB connecting structure, and transfers the audio signal on the USB transmission line to the earphones and the loudspeaker cabinets and other equipment. The switching device enhances the function of the USB transmission line, and improves the utilization ratio of the device.
Description
Technical field
The present invention relates to a kind of audio signal switching device, particularly about a kind of audio switching device that can share USB (USB).
Background technology
The various portable mobile electronic products that are widely current in the market, as mobile phone, music player etc.Because portable mobile electronic product volume microminiaturization need play sound by earphone, therefore above-mentioned electronic product more and more need be worn earphone, and all designs very long in order to make the user obtain bigger degree of freedom earphone cord.The USB transmission line is used in these electronic products and the data of external equipment and the transmission of data simultaneously more.In the use of portable mobile electron, earphone and the USB transmission line element that all is absolutely necessary, therefore the user often need prepare USB transmission line and earphone simultaneously, and earphone cord, USB transmission line all have very long transmission line, like this to the user to the management of earphone and USB transmission line with carry and all bring very big inconvenience, and cause the waste of circuit.
Summary of the invention
Therefore the invention provides a kind of audio signal switching device, use this switching device and to be transferred on the equipment such as earphone by USB transmission line audio signal.
Described audio signal switching device comprises:
The sub-device of one first switching, it comprises an audio frequency attachment plug and a USB syndeton.This audio frequency attachment plug is divided into left channel audio signal link, right channel audio signal link, power connector end and audio frequency ground link, the one USB syndeton and USB transmission line are coupled and left channel audio signal link, right channel audio signal link, power connector end are connected to one to one correction data line, negative data line and the power line of USB transmission line, audio frequency ground link are connected to the earth connection of USB transmission line.The sub-device of this first switching reaches the USB transmission line with audio signal.
The sub-device of one second switching, it comprises an audio socket and the 2nd USB syndeton.This audio socket is divided into left channel audio signal link, right channel audio signal link, power connector end and audio frequency ground link, the 2nd USB syndeton and USB transmission line are coupled and left channel audio signal link, right channel audio signal link, power connector end are connected to one to one correction data line, negative data line and the power line of USB transmission line, audio frequency ground link are connected to the earth connection of USB transmission line.The sub-device of this second switching obtains the audio signal that described audio frequency attachment plug transmits by the USB transmission line.
Described audio signal switching device also can include: an audio socket and a USB syndeton, this audio socket is divided into left channel audio signal link, right channel audio signal link, power connector end and audio frequency ground link, described USB syndeton and USB transmission line are coupled and left channel audio signal link, right channel audio signal link, power connector end are connected to one to one correction data line, negative data line and the power line of USB transmission line, audio frequency ground link are connected to the earth connection of USB transmission line.
Audio switching device provided by the invention can improve the utilance of USB transmission line, reaches the purpose of thin device.
Description of drawings
Fig. 1 is the structural representation of audio signal switching device of the present invention.
Fig. 2 is the internal electric connection diagram of the sub-device of first switching.
Fig. 3 is the internal electric connection diagram of the sub-device of second switching.
Embodiment
Consulting Fig. 1, is the structural representation of audio signal switching device of the present invention.Described switching device comprises one first sub-device 3 of switching and the sub-device 4 of one second switching, connects the plug (calling first plug 1 and second plug 2 in the following text) at a USB transmission line 5 two ends respectively.Sub-device 3 one ends of described first switching are audio frequency attachment plug 31, and this audio frequency attachment plug 31 can be 3.5 millimeters audio jack of standard.Described audio frequency attachment plug 31 can be connected to the audio output interface of equipment such as MP3 player, notebook computer and PC.The other end of the sub-device 3 of this first switching is a USB syndeton 32 that can be connected with USB transmission line first plug 1.Sub-device 4 one ends of described second switching are the 2nd USB syndeton 41 that is connected with USB transmission line second plug 2, and the other end is an audio socket 42, and this audio socket 42 can be 3.5 millimeters audio sockets of standard, can connect other audio output apparatus.
Consulting Fig. 2, is the internal electric connection diagram of the sub-device 3 of first switching.A described USB syndeton 32 comprises correction data line (Data+) terminal, negative data line (Data-) terminal, power line (Vcc) terminal and earth connection (GND) terminal.The audio frequency attachment plug 31 of the sub-device 3 of described first switching is divided into electric independently four sections: be followed successively by left channel audio signal link A, right channel audio signal link B, power connector end C and audio frequency ground link D, be connected with correction data line (Data+) terminal, negative data line (Data-) terminal, power line (Vcc) terminal and earth connection (GND) terminal of a USB syndeton 32 respectively.
Consulting Fig. 3, is the internal electric connection diagram of the sub-device 4 of second switching.Described the 2nd USB syndeton 42 comprises correction data line (Data+) terminal, negative data line (Data-) terminal, power line (Vcc) terminal and earth connection (GND) terminal.The audio socket 42 of the sub-device 4 of described second switching is divided into electric independently four sections: be followed successively by left channel audio signal link a, right channel audio signal link b, power connector end c and audio frequency ground link d, be connected with correction data line (Data+) terminal, negative data line (Data-) terminal, power line (Vcc) terminal and earth connection (GND) terminal of the 2nd USB syndeton 41 respectively.
Please consult Fig. 1 once more, when the first switching sub-device 3 was connected with first plug 1 of USB transmission line 5 by a USB syndeton 32, first plug, the 1 corresponding terminal (scheming not show) of correction data line (Data+) terminal of a USB syndeton 32, negative data line (Data-) terminal, power line (Vcc) terminal and earth connection (GND) terminal and USB transmission line 5 was coupled.That is correction data line (Data+) terminal of a USB syndeton 32 correction data line (Data+) terminal of first plug 1 that is coupled; Be coupled negative data line (Data-) terminal of first plug 1 of negative data line (Data-) terminal of the one USB syndeton 32; Be coupled power line (Vcc) terminal of first plug 1 of the power line of the one USB syndeton 32 (Vcc) terminal; Be coupled earth connection (GND) terminal of first plug 1 of the earth connection of the one USB syndeton 32 (GND) terminal.
Equally, when the second switching sub-device 4 was connected with second plug 2 of USB transmission line 5 by the 2nd USB syndeton 41, second plug, the 2 corresponding terminals (scheming not show) of correction data line (Data+) terminal of the 2nd USB syndeton 41, negative data line (Data-) terminal, power line (Vcc) terminal and earth connection (GND) terminal and USB transmission line 5 were coupled.
Switching device is electrically connected and is not limited to aforesaid way.Left channel audio signal link A, right channel audio signal link B, the power connector end C of the audio frequency attachment plug 31 of the sub-device 3 of first switching can be connected one to one with correction data line (Data+) terminal, negative data line (Data-) terminal and power line (Vcc) terminal of a USB syndeton 32, and its annexation is not limited to the described situation of Fig. 2.And the audio frequency ground link of audio frequency attachment plug 31 is connected in earth connection (GND) terminal of a USB syndeton 31.Audio socket 42 each link (left channel audio signal link a, right channel audio signal link b, power connector end c) of the sub-device 4 of second switching are identical with each terminal annexation of the annexation of the 2nd USB syndeton 41 each terminal and audio frequency attachment plug 31 each link and a USB syndeton 32.
For example, negative data line (Data-) terminal, power connector end C that the left channel audio signal link A of audio frequency attachment plug 31 connects a USB syndeton 32 are connected in power line (Vcc) terminal, and right channel audio signal link B is connected in correction data line (Data+) terminal; Signal for audio frequency attachment plug 31 can send audio socket 42 to by USB transmission line 5 so, negative data line (Data-) terminal, power connector end c that the left channel audio signal link a of audio socket 42 connects the 2nd USB syndeton 32 are connected in power line (Vcc) terminal, and right channel audio signal link b is connected in correction data line (Data+) terminal.
When the audio frequency attachment plug 31 of the sub-device 3 of described first switching was connected to the audio output interface of equipment such as MP3 player, notebook computer and PC, audio signal can be transferred to the audio socket 42 of the sub-device 4 of second switching by USB transmission line 5 from the audio frequency attachment plug 31 of the sub-device 3 of first switching again.
Three kinds of modes when below exemplifying switching device and specifically using:
One: the audio frequency attachment plug 31 of the sub-device 3 of first switching is inserted audio-frequence player device (for example mp3 player) and is obtained audio signal.A described USB syndeton 32 is a recessed structure, and its first plug 1 with the USB transmission line is coupled, and this first plug 1 is a USB transmission line standard A type plug.Audio signal reaches the USB transmission line by the sub-device 3 of this first switching.The 2nd USB syndeton 41 is one to be convexly equipped with structure, second plug, 2 couplings of itself and USB transmission line, and this second plug 2 is a USB transmission line standard Type B plug.Equipment such as earphone, audio amplifier inserts the audio socket 42 of the sub-device 4 of second switching, and audio signal reaches earphone, audio amplifier etc. by the sub-device 4 of this second switching.
The audio frequency attachment plug 31 of its two: the first sub-devices 3 of switching is inserted audio-frequence player device (for example mp3 player) and can be obtained audio signal.A described USB syndeton 32 is one to be convexly equipped with structure, first plug, 1 coupling of itself and USB transmission line, and this first plug 1 is a USB transmission line standard Type B plug.Audio signal reaches the USB transmission line by the sub-device 3 of this first switching.Described the 2nd USB syndeton 41 is a recessed structure, and its second plug 2 with the USB transmission line is coupled, and this second plug 2 is a USB transmission line standard A type plug.Equipment such as earphone, audio amplifier inserts the audio socket 42 of the sub-device 4 of second switching, and audio signal reaches earphone, audio amplifier etc. by the sub-device 4 of this second switching.
Its three: then can omit the sub-device 3 of first switching for audio-frequence player device, directly first plug 1 of USB transmission line be inserted audio frequency apparatus and obtain audio signal by the USB port output audio signal.The 2nd USB syndeton 41 of the sub-device 4 of second switching is one to be convexly equipped with structure, and its second plug 2 with the USB transmission line is coupled, and this second plug 2 is a USB transmission line standard B plug.Equipment such as earphone, audio amplifier inserts the audio socket 42 of the sub-device 4 of second switching, and audio signal reaches earphone, audio amplifier etc. by the sub-device 4 of this second switching.
Claims (6)
1. an audio signal switching device is characterized in that, this switching device comprises:
The sub-device of one first switching, it comprises an audio frequency attachment plug and a USB syndeton, this audio frequency attachment plug is divided into the left channel audio signal link, the right channel audio signal link, power connector end and audio frequency ground link, first plug coupling of the one USB syndeton and USB transmission line is with the left channel audio signal link, the right channel audio signal link, power connector end is connected to the correction data line of first plug of USB transmission line one to one, the negative data line, power line, audio frequency ground link is connected to the earth connection of USB transmission line, and the sub-device of this first switching reaches audio signal first plug of USB transmission line;
The sub-device of one second switching, it comprises an audio socket and the 2nd USB syndeton, this audio socket is divided into the left channel audio signal link, the right channel audio signal link, power connector end and audio frequency ground link, second plug coupling of the 2nd USB syndeton and USB transmission line is with the left channel audio signal link, the right channel audio signal link, power connector end is connected to the correction data line of second plug of USB transmission line one to one, the negative data line, power line, audio frequency ground link is connected to the earth connection of USB transmission line, and second plug of the sub-device of this second switching by the USB transmission line obtains the audio signal that transmits from the audio frequency attachment plug of the sub-device of described first switching.
2. audio signal switching device as claimed in claim 1 is characterized in that:
A described USB syndeton is a recessed structure, and described the 2nd USB syndeton is one to be convexly equipped with structure.
3. audio signal switching device as claimed in claim 1 is characterized in that:
A described USB syndeton is one to be convexly equipped with structure; Described the 2nd USB syndeton is a recessed structure.
4. audio signal switching device as claimed in claim 1 is characterized in that, described audio frequency attachment plug is 3.5 millimeters standard audio plug.
5. audio signal switching device as claimed in claim 1 is characterized in that, described audio socket is 3.5 millimeters standard audio jack.
6. audio signal switching device as claimed in claim 1, it is characterized in that, the left channel audio signal link of described audio frequency attachment plug, right channel audio signal link, power connector end and audio frequency ground link are connected with correction data line terminals, negative data line terminals, power line terminal and the earth connection terminal of a USB syndeton respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006102013270A CN101207255B (en) | 2006-12-19 | 2006-12-19 | Audio signal switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006102013270A CN101207255B (en) | 2006-12-19 | 2006-12-19 | Audio signal switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101207255A CN101207255A (en) | 2008-06-25 |
| CN101207255B true CN101207255B (en) | 2010-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006102013270A Expired - Fee Related CN101207255B (en) | 2006-12-19 | 2006-12-19 | Audio signal switching device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101207255B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217225B (en) * | 2007-01-05 | 2011-07-27 | 鸿富锦精密工业（深圳）有限公司 | An audio signal switching device |
| CN101800375B (en) * | 2009-02-07 | 2012-06-20 | 富士康(昆山)电脑接插件有限公司 | Socket connector and plug connector matched with same |
| CN102201827B (en) * | 2011-06-15 | 2014-02-19 | 天地融科技股份有限公司 | Audio signal receiving and switching device and audio signal transmission system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1215237A (en) * | 1997-10-16 | 1999-04-28 | 夏普公司 | Plug-socket type transmission device and plug-socket type photo/electricity transmission device |
| CN2716898Y (en) * | 2004-04-19 | 2005-08-10 | 郭明波 | A USB interface conversion device |
| CN2750527Y (en) * | 2004-10-27 | 2006-01-04 | 唐勇 | Switching interface |
| CN1832631A (en) * | 2005-03-11 | 2006-09-13 | 台均科技（深圳）有限公司 | Earphone with USB plug |
-
2006
- 2006-12-19 CN CN2006102013270A patent/CN101207255B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1215237A (en) * | 1997-10-16 | 1999-04-28 | 夏普公司 | Plug-socket type transmission device and plug-socket type photo/electricity transmission device |
| CN2716898Y (en) * | 2004-04-19 | 2005-08-10 | 郭明波 | A USB interface conversion device |
| CN2750527Y (en) * | 2004-10-27 | 2006-01-04 | 唐勇 | Switching interface |
| CN1832631A (en) * | 2005-03-11 | 2006-09-13 | 台均科技（深圳）有限公司 | Earphone with USB plug |
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| Publication number | Publication date |
|---|---|
| CN101207255A (en) | 2008-06-25 |
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Granted publication date: 20100929 Termination date: 20131219 |