CN101166036A - Stereosonic blue tooth vehicle mounted hands-free device - Google Patents
Stereosonic blue tooth vehicle mounted hands-free device Download PDFInfo
- Publication number
- CN101166036A CN101166036A CNA2006100631729A CN200610063172A CN101166036A CN 101166036 A CN101166036 A CN 101166036A CN A2006100631729 A CNA2006100631729 A CN A2006100631729A CN 200610063172 A CN200610063172 A CN 200610063172A CN 101166036 A CN101166036 A CN 101166036A
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- Prior art keywords
- free device
- vehicle mounted
- blue tooth
- audio
- mounted hands
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- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
This invention discloses a stereo blue-tooth car carried hand-free device including a blue-tooth module, an audio input unit and an audio output unit characterizing that said blue-tooth module is a blue-tooth stereo main chip connected to the input and output unit separately.
Description
[technical field]
The present invention relates to a kind of blue tooth vehicle mounted hands-free device.
[background technology]
Along with the driving safety problem is subjected to paying close attention to widely, therefore blue tooth vehicle mounted hands-free device (also abbreviating blue tooth vehicular usually as) also obtains powerful market and supports.Present blue tooth vehicular aims at traffic safety and comfortableness and designs.Its function mainly is: automatic identification mobile phone does not need cable or the telephone cradle just can be online with mobile phone; The user does not need to touch just may command mobile phone of mobile phone (both hands remain on the steering wheel), answers or calls with the voice commands for controlling.The user can converse by sound equipment on the car or blue teeth wireless headset.But blue tooth vehicular on the market all is the conversation at mobile phone at present, the monophony chip principle of employing, and when we listened to the music by blue tooth vehicular, tonequality will be very poor, and monophony is not suitable for listening to the music.
[summary of the invention]
The present invention is exactly in order to address the above problem, and a kind of stereosonic blue tooth vehicle mounted hands-free device is provided, and the tonequality grace not only is fit to receive calls, and is fit to listen to music.
For achieving the above object, the present invention proposes a kind of stereosonic blue tooth vehicle mounted hands-free device, comprise bluetooth module, audio frequency input unit and audio output unit, it is characterized in that: described bluetooth module is the Bluetooth stereo master chip, and described Bluetooth stereo master chip links to each other with audio output unit with the audio frequency input unit respectively.
It is that described audio output unit comprises two-way that the present invention further improves, and the first via comprises audio power amplifier circuit and loudspeaker, and described audio power amplifier circuit received audio signal outputs to loudspeaker after the amplification; The second the tunnel comprises the interface that is used for external connection.
Described interface is that diameter is the socket of 3.5mm.
The invention has the beneficial effects as follows: 1) the present invention adopts the Bluetooth stereo master chip, has improved tonequality, not only is fit to receive calls, and is fit to listen to music.2) audio frequency output of the present invention divides two-way, can use in different ways in different occasions.The loudspeaker that a kind of mode is to use vehicle mounted hands-free device to carry carry out audio frequency output, and this mode has increased a power discharging IC in circuit, as the power output that increases audio frequency, reach the volume that increases sound.Another kind of mode is to use external interface directly to export, and can directly insert earphone cord as walkman by this interface, no matter be onboard or in other places, convenient use also can be audio signal transmission to the sound equipment of automobile.
Feature of the present invention and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the block diagram of an embodiment of the present invention.
[embodiment]
Specific embodiment one, see also Fig. 1, blue tooth vehicle mounted hands-free device comprises bluetooth module 1, power supply module 5, audio frequency input unit 3 and audio output unit 2, and power supply module 5 provides power supply for other module in bluetooth module 1 and the earphone.Audio frequency input unit 3 preferably includes microphone 4 (for example being a kind of highly sensitive microphone of full sensing), microphone 4 picks up audio signal, output to bluetooth module 1, the signal that bluetooth module 1 reception antenna receives outputs to audio output unit 2 after treatment.For realizing stereophonic effect, bluetooth module 1 adopts the Bluetooth stereo master chip, the Bluetooth stereo vehicle mounted hands-free device of the Bluetooth stereo master chip design of adopting can by realize the basic call function of mobile phones by key control unit 6, comprise answering, hang up, the position, end redials, refuses incoming call, multistage volume control or the like.When operation realizes different functions, can show by the LED indicating section.
Specific embodiment two, present embodiment are the further improvement on the basis of specific embodiment one, be the output that dual mode is adopted in audio frequency output, to carry a power be that 2 watts of impedances are that 4 ohm loudspeaker are as output to a kind of mode in order by a power amplifier audio signal is amplified to product, guarantee that voice output is enough big, reach best communication effect.Another mode is that audio signal can directly be exported.So audio output unit 2 comprises two-way, the first via comprises audio power amplifier circuit 21 and loudspeaker 22, and audio power amplifier circuit 21 receives the audio signal of being exported by the Bluetooth stereo master chip, outputs to the loudspeaker 22 of vehicle mounted hands-free device self after the amplification; The second the tunnel is the interface 23 that externally connects, this interface 23 preferably diameter is the socket of 3.5mm, this socket as audio signal interface, can also can be inserted the earphone cord of walkman by this interface by this interface audio signal transmission to the sound equipment of automobile.This socket is a switch type socket, has switching function, and when the 3.5mm plug inserted, the audio signal of leading to the power amplifier branch road was cut off, and extracts the back and recovers normal connection.
In sum, this stereosonic blue tooth vehicle mounted hands-free device is small and exquisite flexibly, can be applicable to converse and listen to the music.
Claims (4)
1. stereosonic blue tooth vehicle mounted hands-free device, comprise bluetooth module, audio frequency input unit and audio output unit, it is characterized in that: described bluetooth module is the Bluetooth stereo master chip, and described Bluetooth stereo master chip links to each other with audio output unit with the audio frequency input unit respectively.
2. stereosonic blue tooth vehicle mounted hands-free device as claimed in claim 1 is characterized in that: described audio output unit comprises two-way, and the first via comprises audio power amplifier circuit and loudspeaker, and described audio power amplifier circuit received audio signal outputs to loudspeaker after the amplification; The second the tunnel comprises the interface that is used for external connection.
3. stereosonic blue tooth vehicle mounted hands-free device as claimed in claim 2 is characterized in that: described interface is that diameter is the socket of 3.5mm.
4. stereosonic blue tooth vehicle mounted hands-free device as claimed in claim 3 is characterized in that: described socket is a switch type socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100631729A CN101166036A (en) | 2006-10-17 | 2006-10-17 | Stereosonic blue tooth vehicle mounted hands-free device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100631729A CN101166036A (en) | 2006-10-17 | 2006-10-17 | Stereosonic blue tooth vehicle mounted hands-free device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101166036A true CN101166036A (en) | 2008-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100631729A Pending CN101166036A (en) | 2006-10-17 | 2006-10-17 | Stereosonic blue tooth vehicle mounted hands-free device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101166036A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059992A (en) * | 2010-12-29 | 2011-05-18 | 东莞市石碣志业电子有限公司 | Vehicle-mounted bluetooth wiring harness |
| CN102710869A (en) * | 2012-06-29 | 2012-10-03 | 北京德天泉机电设备有限公司 | Remote control system based on smartphone |
| CN103312385A (en) * | 2012-03-09 | 2013-09-18 | 深圳市三诺电子有限公司 | Bluetooth device and method for controlling sound reception of bluetooth device |
-
2006
- 2006-10-17 CN CNA2006100631729A patent/CN101166036A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059992A (en) * | 2010-12-29 | 2011-05-18 | 东莞市石碣志业电子有限公司 | Vehicle-mounted bluetooth wiring harness |
| CN102059992B (en) * | 2010-12-29 | 2012-12-05 | 东莞市石碣志业电子有限公司 | Vehicle-mounted bluetooth wiring harness |
| CN103312385A (en) * | 2012-03-09 | 2013-09-18 | 深圳市三诺电子有限公司 | Bluetooth device and method for controlling sound reception of bluetooth device |
| CN102710869A (en) * | 2012-06-29 | 2012-10-03 | 北京德天泉机电设备有限公司 | Remote control system based on smartphone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080423 |