CN101170325A - Bluetooth wireless microphone - Google Patents
Bluetooth wireless microphone Download PDFInfo
- Publication number
- CN101170325A CN101170325A CNA2007101956671A CN200710195667A CN101170325A CN 101170325 A CN101170325 A CN 101170325A CN A2007101956671 A CNA2007101956671 A CN A2007101956671A CN 200710195667 A CN200710195667 A CN 200710195667A CN 101170325 A CN101170325 A CN 101170325A
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- bluetooth
- audio
- receiver
- wireless microphone
- reflector
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Abstract
The invention discloses a Bluetooth wireless microphone, which includes an emitter and a receiver which are connected together wirelessly. The emitter and the receiver are provided with a power component separately; the emitter includes an audio input module, a first audio processing module, and a first Bluetooth communication module, which are connected electrically in turn; the receiver includes a second Bluetooth communication, a second audio processing module, and an audio output module able to connect with external output devices, which are electrically connected together in turn as well. With Bluetooth communication protocol for signal transmission, the invention can be used by a plurality of persons at a large occasion without disturbing each other or voice halt; the operation way is simple, and the emitter can match the receiver automatically, thus realizing the effect of pure voice quality without debugging the frequency; the audio data output is stable, and the circuit is provided with the function of eliminating cacophony and echo, thus making the voice more elegant and truer; the emitter is provided with tone adjustment keys, thus adjusting the volume without an amplifier.
Description
Technical field
The present invention relates to a kind of wireless microphone.
Background technology
Present common wireless microphone, great majority are FM (frequency modulation) wireless microphones that adopt 200-700 million frequency ranges, there is following shortcoming in this FM wireless microphone: 1) the frequency range instability of Shi Yonging, serious interfering with each other takes place when the several people uses simultaneously in the same occasion easily, can't guarantee normal use; (2) size is big, must be equipped with big receiver and reflector, carries inconvenience.And, when reflector hangs on one's waist use,, cause waist to be hindered through regular meeting as falling down because of carelessness; (3) almost not being with the volume adjusting key, all is to realize by loudspeaker when needing to regulate volume; (4) install and use necessary before frequency of regulating reflector, will definitely not produce noise if regulate with receiver; But this frequency is difficult to harmonize, and therefore unavoidably has certain noise; (5) manufacturing cost is higher; (6) function singleness.
Development along with Radio Transmission Technology, the wireless blue tooth transmission technology also slowly replaces traditional Radio Transmission Technology, and be widely used in gradually on various occasions and the equipment, the wireless blue tooth transmission technology has and can transmit voice, data and signal simultaneously and be not subject to the characteristic disturbed, when also becoming modern user's transferring voice or data, considerable transmission equipment.Occurred a lot of bluetooth earphones on the market, but Bluetooth microphone does not occur as yet at present.
Summary of the invention
The objective of the invention is to overcome the deficiency of conventional wireless microphone, a kind of wireless microphone by the bluetooth approach transmission is provided.
For achieving the above object, the present invention has adopted following technical scheme: design a kind of Bluetooth wireless microphone, comprise the reflector and the receiver that connect by wireless mode; Be respectively equipped with power supply module in described reflector and the receiver; Wherein, described reflector comprises audio frequency input module, first audio processing modules and first bluetooth communication module that is electrically connected successively; Described receiver comprises second bluetooth communication module, second audio processing modules that is electrically connected successively and can be connected the audio frequency output module of output peripheral equipment.
Further, described first bluetooth communication module comprises baseband processing unit and RF processing unit, and it changes into Bluetooth signal with the digital audio and video signals that first audio processing modules transmits, and by the first embedded with bluetooth antenna Bluetooth signal is sent to receiver then; Described second bluetooth communication module comprises baseband processing unit and RF processing unit, and it receives the Bluetooth signal that comes from reflector by the second embedded with bluetooth antenna, then Bluetooth signal is changed into digital audio and video signals, and sends second audio processing modules to.
Preferably, also be provided with sound volume control device on the described reflector.
Described reflector is provided with first pairing key, and receiver is provided with second pairing key.
Described power supply module comprises charging circuit, electric power management circuit and rechargeable battery; Described rechargeable battery is preferably lithium battery.
Described reflector is provided with geometrical clamp.
One end of described reflector is provided with audio input port, and the other end is provided with switching device and charge port; One end of receiver is provided with the audio interface plug, and the other end is provided with switching device and charge port.
Be respectively equipped with LED light on described reflector and the receiver.
Can also be connected with audio amplifier circuit between described second audio processing modules and the audio frequency output module.
Compared with prior art, the present invention has following advantage and beneficial effect:
(1) adopts the bluetooth communication agreement to carry out the signal transmission,, therefore on same big occasion, can many people use simultaneously, can not produce any interference, also can not produce the phenomenon of staccato in the middle of using because bluetooth adopts unique 2.4G frequency range;
(2) after the present invention opened switching device, waiting after 3 seconds (pairing) can plug and play, and mode of operation is simple, can match automatically between reflector and the receiver, need not debug frequency and also can realize noise-free effect;
(3) voice data output is stable, has increased elimination noise and echo function on the circuit, can realize graceful tonequality and real tone color;
(4) reflector in the middle of the present invention and the length of receiver have only about 57mm, and its volume is little, and function is complete, are convenient for carrying, and need only the audio interface that receiver is inserted on micropkonic audio interface or other external equipments in any environment and just can use at once.Because easy to use and carry, its scope of application is very wide, for example, school and college, cram school teacher say class hour, when school and the outdoor activities of various groups, when the guide of travel agency is with, during various advertising campaign, during various religions rally, and when large hospital, parking lot, factory or the like;
(5) be provided with the volume adjusting key on the reflector of the present invention, need not realize by loudspeaker when regulating volume;
(6) the present invention can adopt the equipment of Bluetooth protocol to carry out compatibility with all, for example notebook computer, video camera, PDA, MP3/MP4, karaoke system, satellite navigator and loudspeaker or the like;
(7) manufacturing cost is lower;
(8) power consumption is little.
Description of drawings
Fig. 1 is the perspective view of the reflector of Bluetooth wireless microphone of the present invention;
Fig. 2 is the perspective view of the receiver of Bluetooth wireless microphone of the present invention;
Fig. 3 is the functional-block diagram of the reflector of Bluetooth wireless microphone of the present invention;
Fig. 4 is the functional-block diagram of the receiver of Bluetooth wireless microphone of the present invention.
Below in conjunction with the drawings and specific embodiments the present invention is done to describe in further detail.
Embodiment
Fig. 1 is the perspective view of the reflector of Bluetooth wireless microphone of the present invention.This reflector 1 is provided with geometrical clamp 2, and just reflector 1 is fixedly clamped in user's position, front.One end of reflector be provided with can be relative with sound source audio input port 3, the other end is provided with switching device and charge port.In addition, reflector 1 also is provided with volume control button 4, this volume control button 4 simultaneously also as with first pairing key of receiver pairing.Understand the reflector current working state for the ease of the user, also be provided with LED light 5 on the reflector 1.
Fig. 2 is the perspective view of the receiver of Bluetooth wireless microphone of the present invention.These receiver 6 one ends are provided with the universal audio plug 7 of 2.5mm/3.5mm, are used to connect for example output peripheral equipment 10 such as loudspeaker, and the other end of receiver 6 is provided with switching device and charge port.This receiver 6 is provided with second pairing key 8 with reflector 1 pairing.Understand receiver 6 current working state for the ease of the user, also be provided with LED light 9 on the receiver 6.
Fig. 3 is the functional-block diagram of the reflector 1 of Bluetooth wireless microphone of the present invention.Wherein, reflector 1 inside comprises audio frequency input module 11, first audio processing modules 12 and first bluetooth communication module 13 that is electrically connected successively; In addition, also be provided with power supply module 14 in this reflector, comprise charging circuit 141, electric power management circuit 142 and rechargeable lithium battary 143 etc., so that provide work required electric energy to each module, and can utilize charge port to be connected with charger, so that lithium battery 143 is charged.Wherein, audio frequency input module 11 utilizes pick-up head 111 to receive the external voice signal, and to first audio processing modules, 12 output simulated audio signals; First audio processing modules 12 comprises the audio coding/decoding circuit, is used for converting the simulated audio signal of audio frequency input module 11 inputs to the corresponding digital audio signal; First bluetooth communication module 13 comprises baseband processing unit 131 and RF processing unit 132, is used for digital audio and video signals is changed into Bluetooth signal, by the first embedded with bluetooth antenna 133 Bluetooth signal is sent to receiver 6 then.
Fig. 4 is the functional-block diagram of the receiver 6 of Bluetooth wireless microphone of the present invention.This receiver 6 comprises second bluetooth communication module 61, second audio processing modules 62 and the audio frequency output module 63 that is electrically connected successively; In addition, also be provided with power supply module 64 in this receiver 6, comprise charging circuit 641, electric power management circuit 642 and rechargeable lithium battary 643 etc., so that provide work required electric energy to each module, and can utilize charge port to be connected with charger, so that lithium battery 643 is charged.Described second bluetooth communication module 61 comprises RF processing unit 611 and baseband processing unit 612, it receives the Bluetooth signal that comes from reflector 1 by the second embedded with bluetooth antenna 613, then Bluetooth signal is changed into digital audio and video signals, and send second audio processing modules 62 to; Second audio processing modules 62 changes into simulated audio signal with digital audio and video signals, sends audio frequency output module 63 then to.Audio frequency output module 63 is connected by external equipments such as universal audio plug 7 and for example loudspeakers, and the audio signal amplification is exported.When being connected, can between second audio processing modules 62 and audio frequency output module 63, be connected an audio amplifier circuit, so that output again after audio signal amplified with the external equipment that does not have signal amplifying function.
The present invention adopts the bluetooth communication agreement to carry out the signal transmission, can many people use simultaneously on same big occasion, can not produce any interference, also can not produce the phenomenon of staccato in the middle of using; Mode of operation is simple, can match automatically between reflector and the receiver, need not debug frequency and also can realize noise-free effect; Voice data output is stable, has increased elimination noise and echo function on the circuit, can realize graceful tonequality and real tone color; Be provided with the volume adjusting key on the reflector, need not can realize by loudspeaker when regulating volume.
Above-described only is the preferred embodiments of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these changes and change should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a Bluetooth wireless microphone comprises
Reflector and receiver by the wireless mode connection;
Be respectively equipped with power supply module in described reflector and the receiver;
It is characterized in that:
Described reflector comprises audio frequency input module, first audio processing modules and first bluetooth communication module that is electrically connected successively;
Described receiver comprises second bluetooth communication module, second audio processing modules that is electrically connected successively and can be connected the audio frequency output module of output peripheral equipment.
2. Bluetooth wireless microphone according to claim 1 is characterized in that:
Described first bluetooth communication module comprises baseband processing unit and RF processing unit, and it changes into Bluetooth signal with the digital audio and video signals that first audio processing modules transmits, and by the first embedded with bluetooth antenna Bluetooth signal is sent to receiver then;
Described second bluetooth communication module comprises baseband processing unit and RF processing unit, and it receives the Bluetooth signal that comes from reflector by the second embedded with bluetooth antenna, then Bluetooth signal is changed into digital audio and video signals, and sends second audio processing modules to.
3. Bluetooth wireless microphone according to claim 1 is characterized in that:
Also be provided with sound volume control device on the described reflector.
4. Bluetooth wireless microphone according to claim 1 is characterized in that:
Described reflector is provided with first pairing key;
Described receiver is provided with second pairing key.
5. Bluetooth wireless microphone according to claim 1 is characterized in that:
Described power supply module comprises charging circuit, electric power management circuit and rechargeable battery.
6. Bluetooth wireless microphone according to claim 5 is characterized in that:
Described rechargeable battery is a lithium battery.
7. Bluetooth wireless microphone according to claim 1 is characterized in that:
Described reflector is provided with geometrical clamp.
8. Bluetooth wireless microphone according to claim 1 is characterized in that:
One end of described reflector is provided with audio input port, and the other end is provided with switching device and charge port;
One end of described receiver is provided with the audio interface plug, and the other end is provided with switching device and charge port.
9. Bluetooth wireless microphone according to claim 1 is characterized in that:
Be respectively equipped with LED light on described reflector and the receiver.
10. Bluetooth wireless microphone according to claim 1 is characterized in that:
Also be connected with audio amplifier circuit between described second audio processing modules and the audio frequency output module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101956671A CN101170325A (en) | 2007-12-05 | 2007-12-05 | Bluetooth wireless microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101956671A CN101170325A (en) | 2007-12-05 | 2007-12-05 | Bluetooth wireless microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101170325A true CN101170325A (en) | 2008-04-30 |
Family
ID=39390813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101956671A Pending CN101170325A (en) | 2007-12-05 | 2007-12-05 | Bluetooth wireless microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101170325A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413400A (en) * | 2011-08-31 | 2012-04-11 | 无敌科技(西安)有限公司 | Audio input device, audio output device and method for transmitting audio signals therebetween |
| CN102761798A (en) * | 2012-07-31 | 2012-10-31 | 常保珠 | Teaching Bluetooth microphone |
| CN103237274A (en) * | 2013-03-28 | 2013-08-07 | 深圳市力同亚太科技有限公司 | Audio equipment, microphone and operating method thereof, and audio transmission system |
| CN103368614A (en) * | 2013-06-21 | 2013-10-23 | 深圳市力同亚太科技有限公司 | Audio transmitting method, audio receiving method, transmitting device and receiving device |
| CN105120384A (en) * | 2015-07-30 | 2015-12-02 | 张阳 | Short-distance wireless microphone data transmission method and system |
| CN105744428A (en) * | 2016-05-17 | 2016-07-06 | 芜湖三刀材料科技有限公司 | Special earphone and receiving system for training institutions |
| CN106998509A (en) * | 2016-10-12 | 2017-08-01 | 深圳容通达电子有限公司 | A kind of wireless microphone with Bluetooth transmission |
| CN108289268A (en) * | 2018-04-19 | 2018-07-17 | 科大讯飞股份有限公司 | A kind of microphone transmitters and radio system |
| CN108551630A (en) * | 2018-06-22 | 2018-09-18 | 恩平市越普电子科技有限公司 | A kind of wireless microphone is to frequency display circuit |
| CN110944278A (en) * | 2019-12-04 | 2020-03-31 | 长沙世邦通信技术有限公司 | A loudspeaker |
-
2007
- 2007-12-05 CN CNA2007101956671A patent/CN101170325A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413400A (en) * | 2011-08-31 | 2012-04-11 | 无敌科技(西安)有限公司 | Audio input device, audio output device and method for transmitting audio signals therebetween |
| CN102761798A (en) * | 2012-07-31 | 2012-10-31 | 常保珠 | Teaching Bluetooth microphone |
| CN103237274A (en) * | 2013-03-28 | 2013-08-07 | 深圳市力同亚太科技有限公司 | Audio equipment, microphone and operating method thereof, and audio transmission system |
| CN103368614A (en) * | 2013-06-21 | 2013-10-23 | 深圳市力同亚太科技有限公司 | Audio transmitting method, audio receiving method, transmitting device and receiving device |
| CN105120384A (en) * | 2015-07-30 | 2015-12-02 | 张阳 | Short-distance wireless microphone data transmission method and system |
| CN105744428A (en) * | 2016-05-17 | 2016-07-06 | 芜湖三刀材料科技有限公司 | Special earphone and receiving system for training institutions |
| CN106998509A (en) * | 2016-10-12 | 2017-08-01 | 深圳容通达电子有限公司 | A kind of wireless microphone with Bluetooth transmission |
| CN108289268A (en) * | 2018-04-19 | 2018-07-17 | 科大讯飞股份有限公司 | A kind of microphone transmitters and radio system |
| CN108551630A (en) * | 2018-06-22 | 2018-09-18 | 恩平市越普电子科技有限公司 | A kind of wireless microphone is to frequency display circuit |
| CN110944278A (en) * | 2019-12-04 | 2020-03-31 | 长沙世邦通信技术有限公司 | A loudspeaker |
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Open date: 20080430 |