CN102761798A - Teaching Bluetooth microphone - Google Patents
Teaching Bluetooth microphone Download PDFInfo
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- CN102761798A CN102761798A CN2012102704293A CN201210270429A CN102761798A CN 102761798 A CN102761798 A CN 102761798A CN 2012102704293 A CN2012102704293 A CN 2012102704293A CN 201210270429 A CN201210270429 A CN 201210270429A CN 102761798 A CN102761798 A CN 102761798A
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Abstract
The invention discloses a teaching Bluetooth microphone which comprises an emitter and a receiver matched with the emitter, wherein the emitter comprises a first control module, a first power supply module, a first audio processing module and a Bluetooth emitting module, wherein the first power supply module, the first audio processing module and the Bluetooth emitting module are connected with the first control module; the receiver comprises a second control module, a second power supply module, a second audio processing module and a Bluetooth receiving module, wherein the second power supply module, the second audio processing module and the Bluetooth receiving module are connected with the second control module; working frequencies of the Bluetooth emitting module and the Bluetooth receiving module which are wirelessly communicated are 2.4GHz. According to the invention, by adopting the 2.4GHz working frequencies, the teaching Bluetooth microphone can realize the no adjacent channel interference and can be largely applied to all teaching rooms simultaneously; and by adopting an encryption transmission technology, the teaching Bluetooth microphone has the advantages of strong interference resistance and good generality, thoroughly avoids the frequency jumping of the traditional analog wireless microphone, and meets the requirement of dense use of a school during teaching. The emitter is small and general in a shell, and has strong portability; and the teaching Bluetooth microphone has multiple functions, and greatly facilitates the teaching work.
Description
Technical field
The present invention relates to a kind of microphone, relate in particular to a kind of teaching and use Bluetooth microphone.
Background technology
The main flow wireless microphone product that in classroom instruction, uses at present is main with VHF FM, UHF PLL frequency modulation analog signal transmission mode mostly, and the defective that existing wireless microphone exists has:
Anti-interference: the radio wave penetrability is good because the frequency number of communicating by letter that matees between wireless microphone and the receiver is limited for traditional V/U frequency range, is easy to occur the phenomenon that signal is harassed mutually between the neighbouring device.Adjacent classroom or up and down the audio amplifier between the classroom of floor very likely spread out of the sound in other classrooms.Propagate because the conventional wireless microphone is an analog signal, the interference that receives easily with other radio waves of frequency range produces noise.
Versatility: because transmitter is corresponding one by one with the receiver frequency,, tries one's best during use the microphone of different channel is issued the use of adjacent classroom so microphone will match management specially in school, each other can not be general so respectively overlap microphone.Even the microphone for adjustable frequency also will be adjusted to channel on the no channel of other microphones before use.
Electromagenetic wave radiation: the portioned product radio transmitted power will be considered to be in for a long time than the healthy influence of couple teacher is arranged in the strong electromagnetic radiation environment more than 30 milliwatts.
Environmental issue: wireless microphone adopts the dry cell power supply mode mostly, not only need frequent replacing battery because power consumption is big, and the battery after discarded can produce destruction to biological environment.
How many problems of above-mentioned existence has influenced education sector is further popularized the enthusiasm of using wireless microphone, and the wireless microphone that therefore uses in the teaching is different from the product that use in places such as meeting, amusement, has the particularity of education sector:
1, environmental protection: microphone has substantially exceeded wireless devices commonly used such as mobile phone as teacher's the lasting time of using of daily teaching equipment, under the prerequisite that guarantees the product function of use, adopts low power transmissions to avoid electromagenetic wave radiation to health effects.The chargeable lithium cell that employing can be recycled reduces disposable dry cell and uses the back to environment damage.
2, satisfy the intensive that unit space uses: consider the intensive of unit space use microphone in school, require in a teaching building, will guarantee not harass mutually between all classrooms.Good in anti-interference performance guarantees to transmit voice quality clearly.Stop the traditional analog wireless microphone and scurry the generation of phenomenon frequently.
3, Small Universalization: need not the frequency pairing, save special messenger's keeping.The requirement microphone can both be general in each classroom.Hand microphone or waist-mounted type microphone volume are bigger, so require microphone to accomplish miniaturization as far as possible, long-term use has not thought the sense of bearing a heavy burden yet.Everyone microphone, so-called " teacher one wheat " not only can carry but also clean hygiene.
4, multifunction: no longer only hand-held chalk of teacher and blackboard eraser, but computer, seehears and various information technoloy equipment be equipped with.The handheld device integration of function also has handheld devices such as laser pen, computer-projector appearance remote controller except wireless microphone, so will make things convenient for teaching greatly.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of teaching to use Bluetooth microphone.
For realizing above-mentioned purpose; Bluetooth microphone is used in said teaching; Comprise reflector and receiver with matching; Said reflector comprises first control module and first supply module, first audio processing modules and the Bluetooth transmission module that all are connected with the said first control module communication; Said receiver comprises second control module and second supply module, second audio processing modules and the bluetooth receiver module that all are connected with the said second control module communication, and wireless telecommunications are connected said Bluetooth transmission module with the bluetooth receiver module; Be characterized in that the operating frequency of said Bluetooth transmission module and bluetooth receiver module is at 2.4GHz.
Preferably, said Bluetooth transmission module is a low-power Bluetooth transmission module; Said bluetooth receiver module is a low-power bluetooth receiver module.
Preferably, said reflector also comprises the encrypting module that is connected with the first control module communication; Said receiver also comprises the deciphering module that matches with encrypting module, and said deciphering module is connected with the second control module communication.
Preferably, said first power supply unit comprises lithium battery and the charging circuit that is used for lithium battery is charged.
Preferably, said receiver is connected through the first frequency wireless telecommunications with a reflector, and said receiver is connected with another reflector wireless telecommunications through second frequency.
Preferably, the housing of said reflector is tie clip shape, lip pencil or drops.
Preferably, the housing of said reflector is provided with power supply indicator, laser emission port, charging inlet, external microphone jack and function button, and said function button comprises turnover key, turnover key harmony tone saves button down.
Preferably, said charging inlet is the Mini-USB charging inlet.Beneficial effect of the present invention is that said teaching is adopted the 2.4GHz operating frequency with Bluetooth microphone, can realize not having adjacent interference frequently, but all classrooms of large tracts of land is used simultaneously; Employing encrypted transmission technology; Have strong interference immunity, advantage that versatility is good, every complete equipment has unique ID sign indicating number, nearly 1,000,000 groups of ID codings; Thoroughly stop the traditional analog wireless microphone and scurry the generation of phenomenon frequently, satisfied the requirement of school instruction use intensive; Reflector housing general compact is portable strong.Low-power transmission combines chargeable lithium cell, makes the flying power of battery stronger; The USB charging is with filling with usefulness; The design of function button on the reflector housing makes things convenient for teaching greatly, and is multi-functional and relevance measure is high, simplified the multimedia teaching handheld device, a tractor serves several purposes.
Description of drawings
Fig. 1 shows the functional-block diagram of teaching of the present invention with Bluetooth microphone.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation:
Fig. 1 shows the functional-block diagram of teaching of the present invention with Bluetooth microphone; As shown in Figure 1; Bluetooth microphone is used in said teaching; Comprise reflector and receiver with matching; Said reflector comprises first control module 11 and first supply module 12, first audio processing modules 13 and the Bluetooth transmission module that all are connected with 11 communications of said first control module, and said receiver comprises second control module 21 and second supply module 22, second audio processing modules 23 and the bluetooth receiver module that all are connected with 21 communications of said second control module, and wireless telecommunications are connected said Bluetooth transmission module with the bluetooth receiver module; The operating frequency of said Bluetooth transmission module and bluetooth receiver module is at 2.4GHz.Microphone is operated on bluetooth 2.4GHz (ISM) radio band, the total digitalization of modulating/demodulating process.
Further, said reflector also comprises the encrypting module 14 that is connected with 11 communications of first control module; Said receiver also comprises the deciphering module 24 that matches with encrypting module 14, and said deciphering module 24 is connected with 21 communications of second control module.Employing encrypted transmission technology has strong interference immunity, advantage that versatility is good, and every complete equipment has unique ID sign indicating number, and nearly 1,000,000 groups of ID codings are thoroughly stopped the traditional analog wireless microphone and scurried the generation of phenomenon frequently.
2.4GHz the requirement of school instruction use intensive has been satisfied in the setting of the selection of operating frequency and encrypting module 14 and deciphering module 24.
Said Bluetooth transmission module is a low-power Bluetooth transmission module 15; Said bluetooth receiver module is a low-power bluetooth receiver module 25, adopts low power transmissions (1 milliwatt), is 1/10 of international standard, is 1/90 of regular handset.Just make radio signal cover whole classroom scope, avoid being in for a long time than in the strong electromagnetic wave radiation environment to health effects.And; Said first power supply unit comprises lithium battery and the charging circuit that is used for lithium battery is charged; The chargeable lithium cell that employing can be recycled reduces disposable dry cell and uses the back to environment damage, is genuine " the wireless miaow of environmental protection ".
The characteristics of low-power transmission and the application of chargeable lithium cell; Make said teaching have the characteristics of environmental protection with Bluetooth microphone; And; Adopt the loss of having practiced thrift electric energy greatly after the 2.4G low power transmissions technology, clip-on microphone is full of once that electricity back stream time can reach more than 10 hours, the pen type microphone once is full of electricity back stream time and can reaches more than 15 hours.The built-in lithium battery administration module of configuration has that low-voltage is reported to the police simultaneously, charging indication and charging accomplish functions such as the automatic shutdown in back, is the product of tool practicability in the like product.
Be convenient teaching, said teaching can be made tie clip shape, lip pencil or drops with the housing of the reflector of Bluetooth microphone, and the microphone of tie clip profile contains rechargeable battery and has only 20g heavy, is the product that like product kind volume is minimum in the market, weight is the lightest.The user is not had any dress code, long-time use the sense of yet bearing a heavy burden, not only be convenient for carrying but also clean hygiene.The pen type microphone contains rechargeable battery and has only 35g heavy, the penholder pipe shaft that adopts the fine copper metal to make, high-grade pearl chromium body surface treatment.Have beyond the beautiful outward appearance of fashion, produce the touch noise that rubs when having reduced the hand held wireless microphone effectively and between the palm because of use.The microphone switch has searches function frequently automatically; Pressing the microphone on & off switch operates start frequently with interior just achievable for 2 seconds each other; Just can normally use and need not other complicated operations, make microphone have the characteristics of Small Universal, can really accomplish " miaow is gone over all classrooms ".
In field research; Can use PPT often; Therefore be necessary on the housing of reflector, to be provided with the corresponding function setting; Particularly, the housing of said reflector is provided with power supply indicator, laser emission port, charging inlet, external microphone jack and function button, and said charging inlet is preferably the Mini-USB charging inlet.Said function button comprises turnover key, turnover key harmony tone saves button down.No longer only hand-held chalk of teacher and blackboard eraser, but various information technoloy equipments such as computer, projecting apparatus are equipped with.With the indication of traditional laser, remote-control computer PPT up and down function such as page turning incorporate into that microphone is an one, three-in-one wireless computer microphone is released in the research and development that take the lead in the whole nation.The handheld device integration of function will make things convenient for teaching greatly, and will be multi-functional and relevance measure is high, simplify the multimedia teaching handheld device, a tractor serves several purposes.
In addition; Said teaching can also be designed to the form of one drag two with Bluetooth microphone; Promptly a receiver is through corresponding two transmitters of double frequency; Said receiver is connected through the first frequency wireless telecommunications with a reflector, and said receiver is connected with another reflector wireless telecommunications through second frequency, can satisfy the use of two reflectors simultaneously.
Certainly, said teaching can also be expanded into the multipurpose use with Bluetooth microphone: for professional sound equipment manufacturer provides PCBA level wireless receiver, be built in the sound equipment power amplifying device, form new wireless public address equipment; For the user can provide portable small-sized USB wireless receiver, the multi-media LCD TV machine that inserts computer or have a microphone function satisfies the demand of multimedia teaching.
Being merely preferred embodiment of the present invention in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of claim of the present invention change and modification, all should belong to technological category of the present invention.
Claims (8)
1. Bluetooth microphone is used in a teaching; Comprise reflector and receiver with matching; Said reflector comprises first control module and first supply module, first audio processing modules and the Bluetooth transmission module that all are connected with the said first control module communication; Said receiver comprises second control module and second supply module, second audio processing modules and the bluetooth receiver module that all are connected with the said second control module communication, and wireless telecommunications are connected said Bluetooth transmission module with the bluetooth receiver module; It is characterized in that: the operating frequency of said Bluetooth transmission module and bluetooth receiver module is at 2.4GHz.
2. Bluetooth microphone is used in teaching according to claim 1, it is characterized in that: said Bluetooth transmission module is a low-power Bluetooth transmission module; Said bluetooth receiver module is a low-power bluetooth receiver module.
3. Bluetooth microphone is used in teaching according to claim 2, it is characterized in that: said reflector also comprises the encrypting module that is connected with the first control module communication; Said receiver also comprises the deciphering module that matches with encrypting module, and said deciphering module is connected with the second control module communication.
4. Bluetooth microphone is used in teaching according to claim 2, it is characterized in that: said first power supply unit comprises lithium battery and the charging circuit that is used for lithium battery is charged.
5. Bluetooth microphone is used in teaching according to claim 2, it is characterized in that: said receiver is connected through the first frequency wireless telecommunications with a reflector, and said receiver is connected with another reflector wireless telecommunications through second frequency.
6. use Bluetooth microphone according to any described teaching in the claim 1 to 5, it is characterized in that: the housing of said reflector is tie clip shape, lip pencil or drops.
7. use Bluetooth microphone according to any described teaching in the claim 1 to 5; It is characterized in that: the housing of said reflector is provided with power supply indicator, laser emission port, charging inlet, external microphone jack and function button, and said function button comprises turnover key, turnover key harmony tone saves button down.
8. Bluetooth microphone is used in teaching according to claim 7, it is characterized in that: said charging inlet is the Mini-USB charging inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102704293A CN102761798A (en) | 2012-07-31 | 2012-07-31 | Teaching Bluetooth microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102704293A CN102761798A (en) | 2012-07-31 | 2012-07-31 | Teaching Bluetooth microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102761798A true CN102761798A (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102704293A Pending CN102761798A (en) | 2012-07-31 | 2012-07-31 | Teaching Bluetooth microphone |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606309A (en) * | 2013-11-29 | 2014-02-26 | 文杰 | Public address system for teaching based on mobile phone Bluetooth function |
| CN104754469A (en) * | 2015-03-23 | 2015-07-01 | 王亚斌 | Automatic starting pairing method and device for wireless microphone |
| 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 |
| CN108769970A (en) * | 2018-07-03 | 2018-11-06 | 安徽声讯信息技术有限公司 | A kind of blue tooth transmission system of voice PPT page turners |
| CN109936799A (en) * | 2019-04-12 | 2019-06-25 | 王家春 | A kind of wireless microphone system based on intelligent terminal |
| CN110113686A (en) * | 2018-02-01 | 2019-08-09 | 广州市力韵音响器材有限公司 | A kind of anti-interference wireless microphone |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101170325A (en) * | 2007-12-05 | 2008-04-30 | 新洋电子科技有限公司 | Bluetooth wireless microphone |
| 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 |
| CN202713560U (en) * | 2012-07-31 | 2013-01-30 | 常保珠 | Bluetooth microphone for teaching |
-
2012
- 2012-07-31 CN CN2012102704293A patent/CN102761798A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101170325A (en) * | 2007-12-05 | 2008-04-30 | 新洋电子科技有限公司 | Bluetooth wireless microphone |
| 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 |
| CN202713560U (en) * | 2012-07-31 | 2013-01-30 | 常保珠 | Bluetooth microphone for teaching |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606309A (en) * | 2013-11-29 | 2014-02-26 | 文杰 | Public address system for teaching based on mobile phone Bluetooth function |
| CN104754469A (en) * | 2015-03-23 | 2015-07-01 | 王亚斌 | Automatic starting pairing method and device for wireless microphone |
| 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 |
| CN110113686A (en) * | 2018-02-01 | 2019-08-09 | 广州市力韵音响器材有限公司 | A kind of anti-interference wireless microphone |
| CN108769970A (en) * | 2018-07-03 | 2018-11-06 | 安徽声讯信息技术有限公司 | A kind of blue tooth transmission system of voice PPT page turners |
| CN109936799A (en) * | 2019-04-12 | 2019-06-25 | 王家春 | A kind of wireless microphone system based on intelligent terminal |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121031 |