CN201238370Y - Headphone seat with USB data transmission function - Google Patents
Headphone seat with USB data transmission function Download PDFInfo
- Publication number
- CN201238370Y CN201238370Y CNU2008200952141U CN200820095214U CN201238370Y CN 201238370 Y CN201238370 Y CN 201238370Y CN U2008200952141 U CNU2008200952141 U CN U2008200952141U CN 200820095214 U CN200820095214 U CN 200820095214U CN 201238370 Y CN201238370 Y CN 201238370Y
- Authority
- CN
- China
- Prior art keywords
- usb data
- digital
- utility
- earphone base
- earphone jack
- 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
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- Headphones And Earphones (AREA)
Abstract
The utility model relates to the technical filed of digital products and discloses an earphone jack provided with the USB data transmission function. The utility model comprises an earphone jack body, which is internally provided with a digital/analog signal conversion switch connected with the interface of the earphone jack body; four core wires are lead out from the output end of the digital/analog signal conversion switch, wherein, two of the core wires are used for transmitting audio signals, and the other two core wires are used for transmitting USB data. By virtue of the digital/analog signal conversion switch and the four output core wires, the utility model ensures that the earphone jack can not only be used for transmitting audio signals, but also for USB data, thus expanding the functions of the earphone jack and increasing the use value of the product.
Description
Technical field:
The utility model relates to the digital product technical field, especially relates to the earphone base that uses on a kind of digital product.
Background technology:
Mostly have earphone base on the digital product such as GPS, mobile phone, still, existing earphone base can only be used for transmitting audio signal, just can only be used for listening to the music, and can't realize the transmission of usb data, and is comparatively single on the function, is necessary further to improve.
The utility model content:
The purpose of this utility model is the weak point that exists at prior art and a kind of earphone base with usb data transfer function is provided that it not only can be used for listening song, and can transmit usb data.
For achieving the above object, the utility model includes an earphone base body, has the digital/analog signal change over switch that links to each other with the interface of earphone base body in the described earphone base body, the output of digital/analog signal change over switch is drawn four heart yearns, wherein, article two, heart yearn is used for transmitting audio signal, and two heart yearns are used to transmit usb data in addition.
The beneficial effects of the utility model are: it is by digital/analog signal change over switch and four output heart yearns, make earphone base both can be used for transmitting audio signal, also can be used for transmitting usb data, thereby make the function of earphone base be increased, promote product use value.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described further:
Accompanying drawing 1 is the schematic appearance of earphone base of the present utility model;
Accompanying drawing 2 is circuit theory diagrams of the present utility model.
Embodiment:
The following stated only is preferred embodiment of the present utility model, does not therefore limit protection range of the present utility model.
See illustrated in figures 1 and 2: the utility model includes an earphone base body 10, has the digital/analog signal change over switch 20 that links to each other with the interface 11 of earphone base body 10 in the earphone base body 10, the output of digital/analog signal change over switch 20 is drawn four heart yearns 21～24, wherein, article two, heart yearn 21,22 are used for transmitting audio signal, and two heart yearns 23,24 are used to transmit usb data in addition.
Brief description operation principle of the present utility model once:
(1), earphone base is realized the usb data transmission:
When special usb data line plug inserts earphone base JP2,4,3 pin of D+ in the USB universal serial bus, D-process JP2 communicate with the 4th, 3 pin of U11, the 2nd pin USB-PW of U11 this moment (digital-to-analog change over switch) is high level 5V, U11 switches to the digital switch state, the 4th, the 3 pin D+/D-of U11 communicate with the 8th, 9 pin inside respectively, D+, D-process R42, R41 communicate with SlaveD+, the Slave D-of CPU, carry out usb data and pass on;
(2), earphone base is listened to the music:
When earphone inserted earphone base JP2, ELCH-OUT/ERCH-OUT was through C50, R17, B2 for the output of music left and right sound channels; The 7th, 6 pin of U11 are delivered in C51, R18, B3 coupling, at this moment, the 2nd pin USB-PWR of U11 is a low level, U11 switches to the analog switch state, the 7th, 6 pin of U11 link to each other with 3,4 pin internal switches, and disconnect 8,9 pin and link to each other with 4,3 pin, realize the switching of sound left and right sound channels and usb data D-/D+.
Need to prove: the earphone that cooperates with earphone base of the present utility model is 2.5mm or 3.5mm earphone, and earphone heads is three joints; The USB line is special line, and its headset plug is necessary for four joints.
Claims (1)
1. earphone base with usb data transfer function, it includes an earphone base body (10), it is characterized in that: have the digital/analog signal change over switch (20) that links to each other with the interface (11) of earphone base body (10) in the described earphone base body (10), the output of digital/analog signal change over switch (20) is drawn four heart yearns (21～24), wherein, two heart yearns (21,22) are used for transmitting audio signal, two heart yearns (23,24) are used to transmit usb data in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200952141U CN201238370Y (en) | 2008-06-30 | 2008-06-30 | Headphone seat with USB data transmission function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200952141U CN201238370Y (en) | 2008-06-30 | 2008-06-30 | Headphone seat with USB data transmission function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201238370Y true CN201238370Y (en) | 2009-05-13 |
Family
ID=40651102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200952141U Expired - Fee Related CN201238370Y (en) | 2008-06-30 | 2008-06-30 | Headphone seat with USB data transmission function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201238370Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113690A (en) * | 2019-06-11 | 2019-08-09 | 安徽丰汇声学科技有限公司 | A kind of earphone cable and braiding processing method |
-
2008
- 2008-06-30 CN CNU2008200952141U patent/CN201238370Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113690A (en) * | 2019-06-11 | 2019-08-09 | 安徽丰汇声学科技有限公司 | A kind of earphone cable and braiding processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Link-create Technology Co., Ltd. Assignor: Yu Youqiang Contract record no.: 2011440020341 Denomination of utility model: Headphone seat with USB data transmission function Granted publication date: 20090513 License type: Exclusive License Record date: 20110913 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20120630 |