CN2757439Y - Blue teeth audio frequency adaptor - Google Patents
Blue teeth audio frequency adaptor Download PDFInfo
- Publication number
- CN2757439Y CN2757439Y CN 200420061991 CN200420061991U CN2757439Y CN 2757439 Y CN2757439 Y CN 2757439Y CN 200420061991 CN200420061991 CN 200420061991 CN 200420061991 U CN200420061991 U CN 200420061991U CN 2757439 Y CN2757439 Y CN 2757439Y
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- bluetooth
- socket
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- plug
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Abstract
The utility model relates to a Bluetooth audio frequency adaptor. The utility model is characterized in that the utility model comprises a Bluetooth module and an antenna, wherein the antenna is connected to a radio frequency interface of the Bluetooth module through a radio frequency line; the utility model is provided with an audio input output plug or a socket; the plug or the socket is connected to an analog audio frequency interface of a codec through an audio frequency line; the codec converts analog signals input by the plug or the socket into digital signals and inputs the digital signals to the Bluetooth module through a pulse code modulation PCM interface, and the digital signals are transmitted by the antenna; or the PCM interface converts signals which are received by the Bluetooth module through the antenna into analog signals, and the analog signals are output through the plug or the socket. The utility model can realize not only the wireless communication between a cell phone without the Bluetooth communication function and a Bluetooth earphone, but also the wireless transmission of audio signals between an audio device and a Bluetooth earphone. The utility model has the advantages of no requirement of a complicated drive mechanism, small volume, portability, convenient operation, etc.
Description
Technical field
The utility model relates to wireless communication technology, particularly Bluetooth wireless technology.
Technical background
Bluetooth (Bluetooth) is the short distance radio communication standards of being joined together to develop by mobile operator and mobile computing company, is used for designing setting up a kind of small-sized, economic, short-range Radio Link between portable computer, mobile phone and other mobile device.The frequency range of regulation and stipulation work is public ISM band, and peak data rate can reach 1Mbps.
At present the extensive fields of bluetooth applications is exactly a mobile phone, can use the Bluetooth wireless technology transporting speech when making a phone call, the wireless connections of realization earphone and mobile phone.But the mobile phone that has Bluetooth function at present also seldom, just can't not use bluetooth earphone for major part does not have the regular handset of Bluetooth function.
In addition, for example television set, DVD, PDA, broadcast receiver, intercom etc., these equipment can not connect transmitting audio signal with bluetooth earphone owing to there is not the bluetooth communication function.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of by the Bluetooth wireless technology transmitting audio signal, realize the device of the wireless connections of bluetooth earphone and other audio frequency apparatus, this device has advantages such as the complex drive mechanism of need not, volume are little, easy to carry, easy to use.
The technical scheme of employing of the present utility model is such, and promptly a kind of Bluetooth audio frequency adapter is characterized in that: comprise bluetooth module and antenna, wherein antenna is connected with the radio frequency interface of bluetooth module by radio frequency line; Have audio frequency input and output plug or socket, this plug or socket are connected with the analog audio interface of coding decoder by tone frequency channel wire, becoming digital signal to pass through pulse code modulation interface PCM the analog signal conversion of plug or socket input by coding decoder imports to bluetooth module, and by antenna transmission, or become analog signal to pass through plug or socket output by this pcm interface receives bluetooth module by antenna signal transition.
During use socket or plug are connected with the audio signal output output of the mobile phone of no bluetooth transmission-receiving function by tone frequency channel wire, just can realize wireless telecommunications with bluetooth earphone.Plug or socket are connected with the audio output of stereo sets such as television set, just can pass through the wireless listening to audio signal of bluetooth earphone.
Description of drawings
Accompanying drawing has provided the structural representation of an indefiniteness embodiment of the utility model.
Referring to accompanying drawing, among the figure: 10-bluetooth module, 11-antenna, 12-audio socket, 13-coding decoder CODEC.
Embodiment
Below in conjunction with reference to the accompanying drawings, explain preferred embodiment of the present utility model in detail.In explaining process of the present utility model, will omit detailed description to known function and structure.
Accompanying drawing 1 is the hardware configuration schematic diagram of first embodiment, and wherein antenna 11 links to each other by the radio frequency interface of radio frequency line with bluetooth module 10, and this antenna can be selected the AT9520 product of Advanced Ceramic X company for use.Bluetooth module 10 is integrated coding decoder CODEC13, this bluetooth module can adopt the BlueCore02-Flash module of CSR company to realize.Audio socket 12 is used for transmitting audio signal, links to each other with mobile phone by tone frequency channel wire, and links to each other with CODEC13 by analog audio interface, and the analog signal that coding decoder CODEC13 converts to is carried out input and output.
Accompanying drawing 2 is hardware configuration schematic diagrames of second embodiment, and the coding decoder CODEC13 among Fig. 2 is not integrated in 10 li of bluetooth modules, but adopts independent parts, and links to each other with bluetooth module 10 by pcm interface.This unit can be selected the MC 145483 audio coder ﹠ decoder (codec) chips of Motorola Inc. for use.
Claims (1)
1, a kind of Bluetooth audio frequency adapter is characterized in that: comprise bluetooth module and antenna, wherein antenna is connected with the radio frequency interface of bluetooth module by radio frequency line; Have audio frequency input and output plug or socket, this plug or socket are connected with the analog audio interface of coding decoder by tone frequency channel wire, becoming digital signal to pass through pulse code modulation interface PCM the analog signal conversion of plug or socket input by coding decoder imports to bluetooth module, and by antenna transmission, or become analog signal to pass through plug or socket output by this pcm interface receives bluetooth module by antenna signal transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061991 CN2757439Y (en) | 2004-11-04 | 2004-11-04 | Blue teeth audio frequency adaptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061991 CN2757439Y (en) | 2004-11-04 | 2004-11-04 | Blue teeth audio frequency adaptor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2757439Y true CN2757439Y (en) | 2006-02-08 |
Family
ID=35965816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420061991 Expired - Fee Related CN2757439Y (en) | 2004-11-04 | 2004-11-04 | Blue teeth audio frequency adaptor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2757439Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011069376A1 (en) * | 2009-12-11 | 2011-06-16 | 中兴通讯股份有限公司 | Method and mobile terminal for playing audio |
| CN102571116A (en) * | 2010-12-31 | 2012-07-11 | 上海华勤通讯技术有限公司 | Full-duplex wireless microphone system |
| CN104467902A (en) * | 2014-11-11 | 2015-03-25 | 深圳市中兴移动通信有限公司 | Portable audio transmission device and audio transmission method thereof |
| CN105653237A (en) * | 2016-02-01 | 2016-06-08 | 宇龙计算机通信科技(深圳)有限公司 | Audio playing control method and system and terminal |
| CN106941544A (en) * | 2017-05-03 | 2017-07-11 | 张德明 | A kind of mobile terminal Bluetooth audio frequency expansion module |
-
2004
- 2004-11-04 CN CN 200420061991 patent/CN2757439Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011069376A1 (en) * | 2009-12-11 | 2011-06-16 | 中兴通讯股份有限公司 | Method and mobile terminal for playing audio |
| CN102571116A (en) * | 2010-12-31 | 2012-07-11 | 上海华勤通讯技术有限公司 | Full-duplex wireless microphone system |
| CN104467902A (en) * | 2014-11-11 | 2015-03-25 | 深圳市中兴移动通信有限公司 | Portable audio transmission device and audio transmission method thereof |
| CN105653237A (en) * | 2016-02-01 | 2016-06-08 | 宇龙计算机通信科技(深圳)有限公司 | Audio playing control method and system and terminal |
| CN105653237B (en) * | 2016-02-01 | 2019-03-22 | 宇龙计算机通信科技(深圳)有限公司 | Audio play control method, audio broadcasting control system and terminal |
| CN106941544A (en) * | 2017-05-03 | 2017-07-11 | 张德明 | A kind of mobile terminal Bluetooth audio frequency expansion module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060208 Termination date: 20121104 |