CN202679358U - Stereo Bluetooth audio module - Google Patents
Stereo Bluetooth audio module Download PDFInfo
- Publication number
- CN202679358U CN202679358U CN 201220207135 CN201220207135U CN202679358U CN 202679358 U CN202679358 U CN 202679358U CN 201220207135 CN201220207135 CN 201220207135 CN 201220207135 U CN201220207135 U CN 201220207135U CN 202679358 U CN202679358 U CN 202679358U
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- radio
- circuit
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- Expired - Fee Related
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Abstract
A stereo Bluetooth audio module is composed of a central processing unit loop, a filter loop, a charging loop, a radio frequency emitting and receiving loop, and an audio amplifying circuit, wherein the radio frequency emitting and receiving loop is composed of a radio frequency receiver and a radio frequency emitter. The stereo Bluetooth audio module is characterized in that: one ends of the radio frequency receiver and the radio frequency emitter are respectively connected with an external antenna, the other ends are respectively connected with the filter loop, the filter loop is composed of a filter, a resonator, and a transistor, one end of the filter is connected with the radio frequency emitting and receiving loop, and the other end is connected with the central processing unit loop. The charging loop is composed of a charging circuit and a battery, and the audio amplifying circuit is composed of a power amplifier and a horn.
Description
Technical field
The utility model relates to a kind of short-range wireless communication apparatus, refers specifically to a kind of stereosonic blue tooth audio-frequency module.
Background technology
Development along with radio network technique, Bluetooth technology also is applied on the wireless headset, and the user can exempt leading of earphone cord and mix, freely in every way easily conversation, present its function of bluetooth communication equipment is little, power consumption is high, cost is expensive, is not accepted by most people.
The utility model content
In order to solve the problem that exists in the above technology, the utility model proposes following technical solution.
Such as Fig. 1, the utility model is by the central processing unit loop, the filter loop, charge circuit, radio-frequency receiving-transmitting loop and audio frequency amplifying return circuit form, the radio-frequency receiving-transmitting loop is comprised of radio frequency receiver and radiofrequency launcher, radio frequency receiver is connected with external antenna respectively with an end of radiofrequency launcher, the other end is connected with filter circuit respectively, filter circuit is by filter, resonance, transistor forms, one end of filter is connected with the radio-frequency receiving-transmitting loop, the other end is connected with central treatment loop, charge circuit is comprised of charging circuit and battery, and the audio frequency amplifying return circuit is comprised of power amplifier and loudspeaker.
Such as Fig. 2, base band and agreement are other important component parts of the present utility model, and this system can provide the equipment connection service, and are supported in the various types of data of these exchanged between equipment, need not the 2.4GHz ISM wave band operation of licensing.System has adopted frequency hopping transceiver to prevent from disturbing and decline, and a plurality of FHSS frequency-hopping spread spectrum carrier waves are provided, and radio frequency operation has adopted the binary system frequency modulation(FM) of moulding, has reduced the complexity of transceiver.There are a link, channel and relevant control protocol layer in physical channel top, and the above channel of physical channel also has logic channel, the logic channel load control protocol of base band and physical layer.
The beneficial effects of the utility model are that integrated level is high, volume is little, the peripheral cell that only needs to be equipped with a little just can be realized the function that it is powerful, can connect with any bluetooth audiogenic device that possesses A2DP and AVRCP transmission and remote control protocol, realize the wireless receiving of high-quality stereo audio stream, and can realize Long-distance Control to player of source of sound.
Description of drawings
Fig. 1 is structural framing figure of the present utility model.
Fig. 2 is circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
The utility model is comprised of central processing unit loop 1, filter loop 2, charge circuit 3, radio-frequency receiving-transmitting loop 4 and audio frequency amplifying return circuit 5, radio-frequency receiving-transmitting loop 4 is comprised of radio frequency receiver and radiofrequency launcher, radio frequency receiver is connected with external antenna respectively with an end of radiofrequency launcher, and the other end is connected with filter circuit 2 respectively.Filter circuit 2 is comprised of filter, resonance, transistor, and an end of filter is connected with radio-frequency receiving-transmitting loop 4, and the other end is connected with central treatment loop 1.Charge circuit 3 is comprised of charging circuit and battery.Audio frequency amplifying return circuit 5 is comprised of power amplifier and loudspeaker.
Claims (2)
1. stereosonic blue tooth audio-frequency module, by the central processing unit loop, the filter loop, charge circuit, radio-frequency receiving-transmitting loop and audio frequency amplifying return circuit form, the radio-frequency receiving-transmitting loop is comprised of radio frequency receiver and radiofrequency launcher, it is characterized in that radio frequency receiver is connected with external antenna respectively with an end of radiofrequency launcher, the other end is connected with filter circuit respectively, filter circuit is by filter, resonance, transistor forms, one end of filter is connected with the radio-frequency receiving-transmitting loop, the other end is connected with central treatment loop, charge circuit is comprised of charging circuit and battery, and the audio frequency amplifying return circuit is comprised of power amplifier and loudspeaker.
2. a kind of stereosonic blue tooth audio-frequency module as claimed in claim 1, it is characterized in that there are a link, channel and relevant control protocol layer in the physical channel top, the above channel of physical channel also has logic channel, the logic channel load control protocol of base band and physical layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220207135 CN202679358U (en) | 2012-05-09 | 2012-05-09 | Stereo Bluetooth audio module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220207135 CN202679358U (en) | 2012-05-09 | 2012-05-09 | Stereo Bluetooth audio module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202679358U true CN202679358U (en) | 2013-01-16 |
Family
ID=47500230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220207135 Expired - Fee Related CN202679358U (en) | 2012-05-09 | 2012-05-09 | Stereo Bluetooth audio module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202679358U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607228A (en) * | 2013-11-29 | 2014-02-26 | 深圳市禹欣鑫电子有限公司 | Audio system based on Bluetooth transmission technology |
| CN108172242A (en) * | 2018-01-08 | 2018-06-15 | 深圳市芯中芯科技有限公司 | A kind of improved blue-tooth intelligence cloud speaker interactive voice end-point detecting method |
-
2012
- 2012-05-09 CN CN 201220207135 patent/CN202679358U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607228A (en) * | 2013-11-29 | 2014-02-26 | 深圳市禹欣鑫电子有限公司 | Audio system based on Bluetooth transmission technology |
| CN108172242A (en) * | 2018-01-08 | 2018-06-15 | 深圳市芯中芯科技有限公司 | A kind of improved blue-tooth intelligence cloud speaker interactive voice end-point detecting method |
| CN108172242B (en) * | 2018-01-08 | 2021-06-01 | 深圳市芯中芯科技有限公司 | Improved Bluetooth intelligent cloud sound box voice interaction endpoint detection method |
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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: 20130116 Termination date: 20130509 |