CN102932703A - Wireless microphone - Google Patents
Wireless microphone Download PDFInfo
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- CN102932703A CN102932703A CN2012103944913A CN201210394491A CN102932703A CN 102932703 A CN102932703 A CN 102932703A CN 2012103944913 A CN2012103944913 A CN 2012103944913A CN 201210394491 A CN201210394491 A CN 201210394491A CN 102932703 A CN102932703 A CN 102932703A
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Abstract
The invention relates to a wireless microphone, which comprises a microphone emitter and a receiver, wherein the emitter comprises a filter and amplification circuit, an audio compression circuit, an audio modulation circuit, an RF (Radio Frequency) modulation circuit, a power amplification circuit and other circuits, and further comprises a master control circuit as well as a PLL (Phase Locked Loop) circuit, an infrared emitting/receiving circuit and a mute circuit, all of which are connected with the master control circuit. The receiver comprises circuits for a filter circuit, a mixing circuit, a signal detection circuit, an audio decoding circuit, an audio output circuit and other circuits, and further comprises a master control circuit as well as an infrared emitting/receiving circuit, a PLL circuit, a first-stage mute circuit and a second-stage mute circuit; and the output of the first-stage mute circuit is connected with an input end of the audio decoding circuit, and the output of the second-stage mute circuit is connected with an output end of the audio decoding circuit, so that the two-stage mute control of the receiver is realized. The wireless microphone disclosed by the invention is high in intelligence, and capable of carrying out automatic frequency searching and automatic frequency alignment, and realizing lower startup and shutdown impact sounds, and can be used to effectively prevent noises during automatic searching and frequency alignment.
Description
Technical field
The present invention relates to the microphone field, specifically refer to can the automatic frequency aligning function wireless microphone.
Background technology
The intelligent degree of present wireless microphone on the market is not high, and the realization of every function all needs the staff manually to go to finish the operation more complicated.When especially simultaneously many machines being configured equipment, more needing a plurality of staff to cooperate just and can finish the wasting manpower and material resources.
Summary of the invention
But the problem that the present invention need solve provides a kind of wireless microphone of automatic frequency aligning.
According to the above-mentioned problem that needs solution, the technical scheme that the present invention takes is:
A kind of wireless microphone comprises microphone transmitters and receiver.Wherein, transmitter comprises filter amplification circuit, audio compression circuit, audio modulating circuit, RF modulation and the power amplification circuit that connects successively, and RF modulation and power amplification circuit are connected with antenna; Also comprise a CPU governor circuit and the trivial phase loop circuit of a connected PLL, the first infrared emission/receiving circuit, the trivial phase loop circuit of a described PLL connects RF modulation and power amplification circuit by the first voltage controlled oscillator.Receiver comprises filter circuit, mixting circuit, signal deteching circuit, audio decoding circuit, the audio output circuit that connects successively, also comprise the 2nd CPU governor circuit and connected the second infrared emission/receiving circuit, the trivial phase loop circuit of the 2nd PLL, the trivial phase loop circuit of described the 2nd PLL connects mixting circuit by the second voltage controlled oscillator.
Further, described receiver also comprises first order mute circuit and second level mute circuit, first order mute circuit and second level mute circuit are all controlled with being subjected to the 2nd CPU governor circuit, the output of first order mute circuit connects the audio decoding circuit input, second level mute circuit output connects the audio decoding circuit output, realizes the quiet control of two-stage of receiver.
Further, described transmitter also comprises the 3rd mute circuit, and described mute circuit is connected with audio modulating circuit, and the 3rd mute circuit is subjected to the 3rd CPU governor circuit control to realize audio modulating circuit control and then realizes whether quiet control of transmitter.
Further, described receiver also comprises key circuit and the LED light circuit that is connected with the 2nd CPU governor circuit,
Further, described receiver comprises that also this charging circuit is connected with the 2nd CPU governor circuit for the charging circuit to the transmitter charging; On on the described receiver cradle is set, charging circuit and the second infrared emission/receiving circuit all is built in the cradle.
Compared with prior art, beneficial effect of the present invention is: the intelligent degree of described wireless microphone is high, can automatically search frequency and automatic frequency aligning, and in receiver and transmitter, be provided with multiple mute circuit, reach lower impact sound generated in switching process, also effectively prevent noise when especially automatic search reaches frequency.
Description of drawings
Fig. 1 is that described transmitter forms schematic diagram;
Fig. 2 is that described receiver forms schematic diagram.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Wireless microphone of the present invention comprises microphone transmitters and receiver.
Transmitter theory of constitution block diagram comprises the filter amplification circuit, audio compression circuit, audio modulating circuit, RF modulation and the power amplification circuit that connect successively as shown in Figure 1, and RF modulation and power amplification circuit are connected with antenna; Also comprise a CPU governor circuit and the trivial phase loop circuit of a connected PLL, the first infrared emission/receiving circuit, the trivial phase loop circuit of a described PLL connects RF modulation and power amplification circuit by the first voltage controlled oscillator.Described transmitter also comprises the 3rd mute circuit, and described mute circuit is connected with audio modulating circuit, and the 3rd mute circuit is subjected to the 3rd CPU governor circuit control to realize audio modulating circuit control and then realizes whether quiet control of transmitter.
Receiver theory of constitution framework as shown in Figure 2, comprise the filter circuit, mixting circuit, signal deteching circuit, audio decoding circuit, the audio output circuit that connect successively, also comprise the 2nd CPU governor circuit and connected the second infrared emission/receiving circuit, the trivial phase loop circuit of the 2nd PLL, key circuit and LED light circuit.The trivial phase loop circuit of described the 2nd PLL connects mixting circuit by the second voltage controlled oscillator.Described receiver also comprises first order mute circuit and second level mute circuit, first order mute circuit and second level mute circuit are all controlled with being subjected to the 2nd CPU governor circuit, the output of first order mute circuit connects the audio decoding circuit input, second level mute circuit output connects the audio decoding circuit output, realizes the quiet control of two-stage of receiver.Described receiver comprises that also this charging circuit is connected with the 2nd CPU governor circuit for the charging circuit to the transmitter charging; On on the described receiver cradle is set, charging circuit and the second infrared emission/receiving circuit all is built in the cradle.
Described wireless microphone is to adopt singlechip technology to realize automatically and the wireless microphone of Based Intelligent Control, based on its hardware setting, described microphone can have automated intelligent search, automatic infrared to functions such as frequency, manual search, press key locking, automatic chargings.Described microphone can be realized the switching of three kinds of mode of operations: automated intelligent search pattern, manual search pattern, normal mode of operation.
During automatic frequency aligning, connect first the USB line between transmitter cradle and the receiver, and transmitter is put into start charging in the cradle.
Whether when automatically searching frequently, receiver is delivered to transmitter to one group of channel data first, normal to detect transmitter by the control to transmitter RF signal strength signal intensity.When transmitter RF signal is controlled as when high, receiver is write down current field intensity value and is judged that transmitting-receiving communication is normal, subsequently, be made as the RF signal low again, receiver is write down current field intensity value, if and field intensity and the fiducial value progress of inciting somebody to action this moment compare. greater than fiducial value, receiver is judged to be current channel interference, send new frequency data to transmitter, if and do again above determination step. the field intensity value that test is arrived is less than fiducial value, receiver is write down current channel data and field intensity value, and repeatedly test the field intensity value at this channel, if in 30 minutes not test to the field intensity value greater than fiducial value, judge for this reason channel as noiseless available channel and channel data and control data communication device crossed USB line and cradle to be sent to transmitter and to preserve, finish and automatically search frequently and to process frequently.
Above-described embodiment is preferrred embodiment of the present invention; need to prove; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make according to the present invention various corresponding changes and distortion, but these changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (6)
1. a wireless microphone comprises microphone transmitters and receiver, it is characterized in that,
Described transmitter comprises filter amplification circuit, audio compression circuit, audio modulating circuit, RF modulation and the power amplification circuit that connects successively, and RF modulation and power amplification circuit are connected with antenna; Also comprise a CPU governor circuit and the trivial phase loop circuit of a connected PLL, the first infrared emission/receiving circuit, the trivial phase loop circuit of a described PLL connects RF modulation and power amplification circuit by the first voltage controlled oscillator;
Described receiver comprises filter circuit, mixting circuit, signal deteching circuit, audio decoding circuit, the audio output circuit that connects successively, also comprise the 2nd CPU governor circuit and connected the second infrared emission/receiving circuit, the trivial phase loop circuit of the 2nd PLL, the trivial phase loop circuit of described the 2nd PLL connects mixting circuit by the second voltage controlled oscillator.
2. require described wireless microphone according to right 1, it is characterized in that, described receiver also comprises first order mute circuit and second level mute circuit, first order mute circuit and second level mute circuit are all controlled with being subjected to the 2nd CPU governor circuit, the output of first order mute circuit connects the audio decoding circuit input, second level mute circuit output connects the audio decoding circuit output, realizes that the quiet control of two-stage of receiver reaches lower impact sound generated in switching process and noise.
3. require described wireless microphone according to right 2, it is characterized in that, described transmitter also comprises the 3rd mute circuit, described mute circuit is connected with audio modulating circuit, and the 3rd mute circuit is subjected to CPU governor circuit control to realize audio modulating circuit control and then realizes whether quiet control of transmitter.
4. require described wireless microphone according to right 2, it is characterized in that, described receiver also comprises key circuit and the LED light circuit that is connected with the 2nd CPU governor circuit.
5. require described wireless microphone according to right 4, it is characterized in that, described receiver comprises that also this charging circuit is connected with the 2nd CPU governor circuit for the charging circuit to the transmitter charging, to realize charging and transmitter measuring ability.
6. require described wireless microphone according to right 5, it is characterized in that, cradle is set on the described receiver, charging circuit and the second infrared emission/receiving circuit all is built in the cradle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103944913A CN102932703A (en) | 2012-10-17 | 2012-10-17 | Wireless microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103944913A CN102932703A (en) | 2012-10-17 | 2012-10-17 | Wireless microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102932703A true CN102932703A (en) | 2013-02-13 |
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ID=47647387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103944913A Pending CN102932703A (en) | 2012-10-17 | 2012-10-17 | Wireless microphone |
Country Status (1)
| Country | Link |
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| CN (1) | CN102932703A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9225527B1 (en) | 2014-08-29 | 2015-12-29 | Coban Technologies, Inc. | Hidden plug-in storage drive for data integrity |
| US9307317B2 (en) | 2014-08-29 | 2016-04-05 | Coban Technologies, Inc. | Wireless programmable microphone apparatus and system for integrated surveillance system devices |
| CN105554598A (en) * | 2015-12-14 | 2016-05-04 | 恩平市亿歌电子有限公司 | Automatic frequency-matching multi-channel wireless microphone system and working method thereof |
| CN106385645A (en) * | 2016-11-24 | 2017-02-08 | 深圳市好兄弟电子有限公司 | Wireless microphone system |
| US10152858B2 (en) | 2016-05-09 | 2018-12-11 | Coban Technologies, Inc. | Systems, apparatuses and methods for triggering actions based on data capture and characterization |
| US10165171B2 (en) | 2016-01-22 | 2018-12-25 | Coban Technologies, Inc. | Systems, apparatuses, and methods for controlling audiovisual apparatuses |
| US10370102B2 (en) | 2016-05-09 | 2019-08-06 | Coban Technologies, Inc. | Systems, apparatuses and methods for unmanned aerial vehicle |
| US10789840B2 (en) | 2016-05-09 | 2020-09-29 | Coban Technologies, Inc. | Systems, apparatuses and methods for detecting driving behavior and triggering actions based on detected driving behavior |
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| CN2922294Y (en) * | 2006-04-13 | 2007-07-11 | 林文 | Duplex intercom |
| US20070168819A1 (en) * | 2003-12-30 | 2007-07-19 | Sennheiser Electronic Gmbh & Co. Kg | Digital microphone |
| CN102395065A (en) * | 2011-11-08 | 2012-03-28 | 恩平市上格电子有限公司 | Novel remote-control microphone |
| CN202818545U (en) * | 2012-10-17 | 2013-03-20 | 杨志豪 | Wireless microphone |
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2012
- 2012-10-17 CN CN2012103944913A patent/CN102932703A/en active Pending
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| US20070168819A1 (en) * | 2003-12-30 | 2007-07-19 | Sennheiser Electronic Gmbh & Co. Kg | Digital microphone |
| CN2907142Y (en) * | 2006-01-24 | 2007-05-30 | 丘秉真 | Kara OK power amplifier |
| CN2922294Y (en) * | 2006-04-13 | 2007-07-11 | 林文 | Duplex intercom |
| CN102395065A (en) * | 2011-11-08 | 2012-03-28 | 恩平市上格电子有限公司 | Novel remote-control microphone |
| CN202818545U (en) * | 2012-10-17 | 2013-03-20 | 杨志豪 | Wireless microphone |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9225527B1 (en) | 2014-08-29 | 2015-12-29 | Coban Technologies, Inc. | Hidden plug-in storage drive for data integrity |
| US9307317B2 (en) | 2014-08-29 | 2016-04-05 | Coban Technologies, Inc. | Wireless programmable microphone apparatus and system for integrated surveillance system devices |
| CN105554598A (en) * | 2015-12-14 | 2016-05-04 | 恩平市亿歌电子有限公司 | Automatic frequency-matching multi-channel wireless microphone system and working method thereof |
| US10165171B2 (en) | 2016-01-22 | 2018-12-25 | Coban Technologies, Inc. | Systems, apparatuses, and methods for controlling audiovisual apparatuses |
| US10152858B2 (en) | 2016-05-09 | 2018-12-11 | Coban Technologies, Inc. | Systems, apparatuses and methods for triggering actions based on data capture and characterization |
| US10152859B2 (en) | 2016-05-09 | 2018-12-11 | Coban Technologies, Inc. | Systems, apparatuses and methods for multiplexing and synchronizing audio recordings |
| US10370102B2 (en) | 2016-05-09 | 2019-08-06 | Coban Technologies, Inc. | Systems, apparatuses and methods for unmanned aerial vehicle |
| US10789840B2 (en) | 2016-05-09 | 2020-09-29 | Coban Technologies, Inc. | Systems, apparatuses and methods for detecting driving behavior and triggering actions based on detected driving behavior |
| CN106385645A (en) * | 2016-11-24 | 2017-02-08 | 深圳市好兄弟电子有限公司 | Wireless microphone system |
| WO2018095024A1 (en) * | 2016-11-24 | 2018-05-31 | 深圳市好兄弟电子有限公司 | Wireless microphone system |
| CN106385645B (en) * | 2016-11-24 | 2021-01-19 | 深圳市好兄弟电子有限公司 | Wireless microphone system |
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Application publication date: 20130213 |