CN2764067Y - Bluetooth vehicle carried holding free transmitter - Google Patents
Bluetooth vehicle carried holding free transmitter Download PDFInfo
- Publication number
- CN2764067Y CN2764067Y CN 200520032932 CN200520032932U CN2764067Y CN 2764067 Y CN2764067 Y CN 2764067Y CN 200520032932 CN200520032932 CN 200520032932 CN 200520032932 U CN200520032932 U CN 200520032932U CN 2764067 Y CN2764067 Y CN 2764067Y
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- bluetooth
- bluetooth module
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Abstract
The utility model relates to a Bluetooth vehicle carried hand-free device. The utility model comprises a Bluetooth module and an antenna, wherein the antenna is connected to the radio frequency interface of the Bluetooth module through a radio frequency line. The utility model is characterized in that the Bluetooth module is connected to a microphone through an analog audio interface of a codec to pick up audio signals; the audio signals are converted into analog signals by the codec so that the analog signals can be transmitted to the Bluetooth module; the codec is connected to an amplifier through the analog audio interface; the analog signals obtained through coding conversion are amplified and output by an acoustic horn. The product of the utility model can be conveniently connected to a cell phone to realize the wireless hand-free function, and the utility model can also be connected to other Bluetooth audio gateway devices to transmit audio signals. The device has the advantages of small volume, portability and convenient operation.
Description
Technical field
The utility model relates to Bluetooth wireless technology, specifically is the Bluetooth vehicle mounted hand-free device as a kind of portable computer, mobile phone and other mobile device.
Technical background
Bluetooth (Bluetooth) technology is a kind of the short distance wireless communication technology standard.
Bluetooth technology is social as a kind of standard configuration of mobile phone now, and increasing mobile phone has also possessed Bluetooth function.Advantages such as Bluetooth technology is wireless with it, radiation proof are accepted by increasing people, and the market demand becomes tangible ascendant trend.
Bluetooth applications is field of mobile telephony the most widely at present, and usable bluetooth wireless communication technology transporting speech when calling is realized the wireless connections of earphone and mobile phone.And in order to guarantee traffic safety, traffic rules are stipulated also that the driver can not beat when driving and are connect mobile phone, make troubles for the use of some mobile communication equipments on automobile.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of by the Bluetooth wireless technology transferring voice, is implemented in the device that uses mobile phone under the driving states with hands-free way.This device has and need not advantages such as complicated driving mechanism, volume be little, easy to carry, easy and simple to handle.
For achieving the above object, the technical solution adopted in the utility model is as described below: Bluetooth vehicle mounted hand-free device comprises bluetooth module and the antenna that links to each other with the radio frequency interface of bluetooth module by radio frequency line.Be characterized in: bluetooth module links to each other with microphone by the analog audio interface of integrated coding decoder, picks up audio signal, converts thereof into analog signal by coding decoder, transmits to bluetooth module; Coding decoder also links to each other with amplifier by analog audio interface, and the analog signal that coding decoder converts to is amplified output by loudspeaker.
The utility model product can link to each other with mobile phone easily, realizes the wireless hands-free function, can also be connected transmitting audio signal with other Bluetooth audio frequency gateway devices.This small product size is little, easy to carry, easy and simple to handle.
Description of drawings
Accompanying drawing has provided the structural representation of an indefiniteness embodiment of the present invention.
Referring to accompanying drawing, among the figure: 10-bluetooth module, 11-antenna, 12-microphone, 13-loudspeaker, 14-CODEC, 15-amplifier, 16-vehicle power plug.
Embodiment
Below in conjunction with reference to the accompanying drawings, explain the preferred embodiments of the invention in detail.In explaining process of the present utility model, will omit detailed description to known function and structure.
As shown in drawings: accompanying drawing 1 is the hardware configuration schematic diagram of first embodiment: 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 AT 9520 products of Advanced Ceramic X company for use.Bluetooth module 10 is integrated coding decoder CODEC14, this part can adopt the BlueCore02-Flash module of CSR company to realize.Microphone 12 is used to pick up audio signal, can the analog signal that coding decoder CODEC14 converts to be imported by the analog audio interface realization that links to each other with CODEC14.Coding decoder CODEC14 links to each other with audio frequency amplifier by analog audio interface, and the analog signal that coding decoder CODEC14 converts to is exported by loudspeaker; The vehicle power plug is by the power line realization that links to each other with the power end of bluetooth module 10, is used for power taking from the vehicle power socket, uses for Bluetooth vehicle mounted hand-free device.
Accompanying drawing 2 is the hardware configuration schematic diagram of second embodiment, and Fig. 2 is roughly identical with Fig. 1, but place exception is arranged.Coding decoder CODEC14 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 MC 145483 phonetic codec chips of Motorola Inc. for use.
Claims (1)
1, Bluetooth vehicle mounted hand-free device, comprise bluetooth module and the antenna that links to each other with the radio frequency interface of bluetooth module by radio frequency line, be characterized in: the analog audio interface of bluetooth module by coding decoder is connected with microphone and picks up audio signal, convert analog signal to by coding decoder, transmit to bluetooth module; Coding decoder also links to each other with amplifier by analog audio interface, becomes analog signal to amplify output by loudspeaker code conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520032932 CN2764067Y (en) | 2005-01-18 | 2005-01-18 | Bluetooth vehicle carried holding free transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520032932 CN2764067Y (en) | 2005-01-18 | 2005-01-18 | Bluetooth vehicle carried holding free transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2764067Y true CN2764067Y (en) | 2006-03-08 |
Family
ID=36141604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520032932 Expired - Fee Related CN2764067Y (en) | 2005-01-18 | 2005-01-18 | Bluetooth vehicle carried holding free transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2764067Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008011747A1 (en) * | 2006-06-22 | 2008-01-31 | Lee, Chienmin | Bluetooth on-vehicle |
| CN106028183A (en) * | 2016-07-25 | 2016-10-12 | 北京塞宾科技有限公司 | Wireless conversion interface of microphone |
-
2005
- 2005-01-18 CN CN 200520032932 patent/CN2764067Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008011747A1 (en) * | 2006-06-22 | 2008-01-31 | Lee, Chienmin | Bluetooth on-vehicle |
| CN106028183A (en) * | 2016-07-25 | 2016-10-12 | 北京塞宾科技有限公司 | Wireless conversion interface of microphone |
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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: 20060308 Termination date: 20110118 |