CN105744394A - Wireless microphone - Google Patents
Wireless microphone Download PDFInfo
- Publication number
- CN105744394A CN105744394A CN201610279324.2A CN201610279324A CN105744394A CN 105744394 A CN105744394 A CN 105744394A CN 201610279324 A CN201610279324 A CN 201610279324A CN 105744394 A CN105744394 A CN 105744394A
- Authority
- CN
- China
- Prior art keywords
- electric capacity
- module
- switch
- wake
- audion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
Abstract
The invention discloses a wireless microphone. The wireless microphone comprises a power module, a wakeup module, a wakeup signal generation module and a transmission module. The wakeup signal generation module is respectively connected with the wakeup switch and the transmission module; the wakeup switch is connected with the power module; the wakeup signal generation module comprises a capacitor, a switch, a comparer and a threshold voltage module; one end of the capacitor is connected with the power module and the first input end of the comparer while the other end of the capacitor is grounded; the switch is connected in parallel with the capacitor; the second input end of the comparer is connected with the threshold voltage module; the output end of the comparer is connected with the control end of the switch; and the capacitor is connected with the transmission module. According to the wireless microphone, the wakeup switch controls the wakeup signal generation module to generate a wakeup signal of oscillation or not, and the generated wakeup signal is transmitted to a corresponding device for wakeup through the transmission module, so that the cost of additionally configuring a wakeup device is reduced greatly.
Description
Technical field
The present invention relates to speech cloud application, particularly relate to a kind of wireless microphone.
Background technology
Along with the raising of people's living standard, one of Karaoke principal mode having become people's recreation.But, traditional karaoke equipment exceedes that certain time is not used by will dormancy.Generally waking karaoke equipment up is all by clicking the screen of VOD terminal and button, or uses corresponding remote controller to be operated.The screen of click VOD terminal and button can not meet the remote control of user and experience, and uses remote controller then to need to produce extra cost.It addition, present Karaoke all adopts wireless microphone, if it is possible to propose a kind of wireless microphone with arousal function, then can improve Consumer's Experience, cost can be saved again.
Summary of the invention
The technical problem to be solved is: provide a kind of wireless microphone with arousal function, it is possible to wake corresponding VOD terminal and wireless microphone system up.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of wireless microphone, including power module, wake-up switch, wake-up signal generation module and transmitter module, described wake-up signal generation module connects described wake-up switch and transmitter module respectively；Described wake-up switch connects described power module；
Described wake-up signal generation module includes an electric capacity, a switch, a comparator and a threshold voltage module；One end of described electric capacity connects the first input end of described power module and described comparator, other end ground connection；Described switch and described Capacitance parallel connection, the second input of described comparator connects described threshold voltage module；The outfan of described comparator connects the control end of described switch；Described electric capacity is connected with described transmitter module.
The beneficial effects of the present invention is: control whether the electric capacity of wake-up signal generation module is charged by wake-up switch, when electric capacity charging voltage equals or exceeds the voltage that threshold voltage module produces, comparator output control signal controls switch Guan Bi, electric capacity produces oscillator circuit signal as wake-up signal, and wake-up signal is sent to corresponding wireless receiver or terminal by transmitter module, thus waking corresponding equipment up.The wireless microphone simple in construction of the present invention, easy to operate, and considerably reduce the cost configuring remote control Rouser separately.
Accompanying drawing explanation
Fig. 1 is the wireless microphone structural representation of the embodiment of the present invention；
Fig. 2 is the wireless microphone structural representation one of the embodiment of the present invention one；
Fig. 3 is the wireless microphone structural representation two of the embodiment of the present invention one；
Fig. 4 is the wireless microphone structural representation of the embodiment of the present invention two.
Label declaration:
1, power module；2, wake-up switch；3, wake-up signal generation module；31, threshold voltage module；4, transmitter module；5, audio signal generation module.
Detailed description of the invention
By describing the technology contents of the present invention in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained.
The design of most critical of the present invention is in that: arrange wake-up signal generation module, it is possible to produce the corresponding equipment of wake-up signal wakes.
Refer to Fig. 1, the present invention provides
A kind of wireless microphone, including power module 1, wake-up switch 2, wake-up signal generation module 3 and transmitter module 4, described wake-up signal generation module 3 connects described wake-up switch 2 and transmitter module 4 respectively；Described wake-up switch 2 connects described power module 1；
Described wake-up signal generation module 3 includes an electric capacity, a switch, a comparator and a threshold voltage module 31；One end of described electric capacity connects the first input end of described power module 1 and described comparator, other end ground connection；Described switch and described Capacitance parallel connection, the second input of described comparator connects described threshold voltage module 31；The outfan of described comparator connects the control end of described switch；Described electric capacity is connected with described transmitter module 4.
Known from the above, the beneficial effects of the present invention is: control whether the electric capacity of wake-up signal generation module 3 is charged by wake-up switch 2, and the charging to electric capacity is stopped than or equal to threshold voltage module 31 when the reference voltage that capacitance voltage produces, electric capacity produces the oscillator circuit signal as wake-up signal, and this wake-up signal is launched to corresponding terminal unit by radiating circuit, thus waking corresponding terminal unit up；There is simple in construction, easy to operate, low cost and other advantages.
Further, also including resistance, described electric capacity connects described wake-up switch 2 by described resistance.
From the above it can be seen that supply voltage input capacitance after resistance blood pressure lowering, to ensure the steady operation of whole circuit；May be used without other devices, it is possible to realize identical effect.
Further, described transmitter module 4 includes: audion, the first resistance, the second resistance, the first electric capacity, the second electric capacity and inductance, and the electric capacity of described wake-up signal generation module 3 is connected between base stage and the emitter stage of described audion；Described first resistance is connected be followed by between the base stage and colelctor electrode of audion with the first electric capacity and the inductance of parallel connection；The second resistance and second electric capacity of parallel connection is connected between base stage and the emitter stage of described audion；Described power module 1 is connected with the base stage of described audion.
Known from the above, wake-up signal converts radio wave to after the second Capacitance Coupled, the shunt-resonant circuit that after amplifying then through audion, output, the first electric capacity and inductance are formed sends to corresponding equipment amplifying after output carries out frequency of oscillation selection, it is achieved the transmitting of wake-up signal.
Further, described transmitter module 4 also includes the 3rd electric capacity, and described 3rd electric capacity is connected between the collector and emitter of described audion.
From the above it can be seen that the 3rd electric capacity plays the effect of feedback regulation, it is possible to use the circuit being capable of identical feedback regulation effect in prior art is replaced.
Further, audio signal generation module 5 is also included；Described transmitter module 4 also includes the first power supply, the first switch and the 4th electric capacity, and described first power supply is by the described first base stage switching connecting triode；Described audio signal generation module 5 and the 4th Capacitance parallel connection are connected between base stage and the emitter stage of described audion.
From the above it can be seen that powered by the first independent power supply so that wake-up signal is launched and audio signal transmitting is independent of each other；Audio signal becomes the signal of telecommunication by the 4th Capacitance Coupled, and this signal of telecommunication is amplified output by audion again, it is achieved the amplification of audio signal is launched.
Further, described transmitter module 4 also includes the 5th electric capacity and second switch, and described 5th electric capacity is connected with described second switch and is followed by between described first resistance and the colelctor electrode of audion.
From the above it can be seen that the 5th electric capacity is base stage filter capacitor, it is possible to filter the high frequency magazine in audio signal so that last audio frequency output is more stable, soft.
Further, described transmitter module 4 also includes the 6th electric capacity, and described 6th electric capacity is connected between described first power supply and the base stage of audion.
From the above it can be seen that power supply is filtered by the 6th electric capacity, provide loop to AC signal, reduce the AC internal Resistance of power supply so that whole circuit is operated in a stable state.
Refer to Fig. 2 and Fig. 3, embodiments of the invention one are:
A kind of wireless microphone, including power module 1, wake-up switch 2, wake-up signal generation module 3 and transmitter module 4；Described signal generator module includes resistance R, electric capacity C, comparator U and switch K, wherein one end of electric capacity C is connected with the first input end of resistance R and comparator U, other end ground connection, second outfan of comparator U connects a threshold voltage, described switch K is in parallel with electric capacity C, switch K controls the outfan that end connects comparator U again, as shown in Figure 2；Described transmitter module includes audion Q1, the first resistance R1, the second resistance R2, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3 and inductance L1, wherein, described first resistance R1 connects with the first electric capacity C1 and inductance L1 of parallel connection and is followed by between the base stage and colelctor electrode of audion Q1, second resistance R2 and the second electric capacity C2 is connected between base stage and the emitting stage of audion Q1, and described 3rd electric capacity C3 is connected between colelctor electrode and the emitting stage of audion Q1；
Described power module 1 is connected with resistance R by wake-up switch 2, and described power module 1 is also connected with the base stage of audion Q1；Described electric capacity C is connected between base stage and the emitting stage of audion Q1；Radio wave after the colelctor electrode output amplification of audion Q1 is to corresponding equipment, as shown in FIG. 2 and 3.
The operation principle of above-mentioned wireless microphone is as follows:
When wake-up switch disconnects, wake-up signal generation module 3 does not work；During wake-up switch Guan Bi, supply voltage accesses electric capacity C by resistance R, electric capacity C is charged, when the voltage of electric capacity C is be more than or equal to threshold voltage, the outfan of comparator U exports a high voltage and controls switch K Guan Bi, stopping electric capacity C is charged, make electric capacity C produce oscillator circuit signal, this oscillator circuit signal is wake-up signal；Wake-up signal becomes radio wave through the second electric capacity C2 coupling as high-frequency signal output coupling capacitor, audion Q1 is common-base amplification circuit, this radio wave amplifies output through audion Q1, first electric capacity C1 and inductance L1 forms shunt-resonant circuit, send to the equipment such as corresponding wireless receiver, VOD terminal after the signal amplifying output is carried out frequency of oscillation selection, wake terminal works up.Wherein, the first resistance R1 is as the biasing resistor of audion Q1, and the second resistance R2 each produces pressure drop and influences each other so that final output result automatic stabilisation is in a certain numeric state, and the 3rd electric capacity C3 is feedback capacity, carries out feedback regulation for circuit starting of oscillation.
Refer to Fig. 4, embodiments of the invention two are:
A kind of wireless microphone, is distinctive in that with above-described embodiment one:
Also including audio signal generation module 5, described transmitter module 4 also includes the first power supply B1, the 4th electric capacity C4, the 5th electric capacity C5 and the 6th electric capacity C6；Described 6th electric capacity C6 one end is connected by the first switch K1 and the first power supply B1, and the other end is connected with the base stage of audion；4th electric capacity C4 is connected between base stage and the emitting stage of audion Q1, and the 5th electric capacity C5 series connection second switch K2 is followed by between described first resistance R1 and the colelctor electrode of audion Q1；Audio signal generation module 5 is connected between the 6th electric capacity C6 and the second resistance R2.
The operation principle of above-mentioned wireless microphone is as follows:
Wherein, when wake-up signal produces and launches, the first switch Guan Bi, second switch disconnects, described in its principle such as embodiment one.When the signal launched is audio signal, first switch K1 and second switch Guan Bi, the circuit that first power supply B1 is transmitter module 4 is powered, the audio signal that audio signal generation module 5 produces, after the 4th electric capacity C4 coupling as audio signal coupling and electric capacity, is converted to the signal of telecommunication and is transferred to next stage circuit；After this signal of telecommunication is amplified by audion Q1, the 5th electric capacity C5 as base stage filter capacitor, filters the high frequency impurity in the signal of telecommunication after amplification；Send to corresponding equipment after carrying out frequency of oscillation selection then through the first electric capacity C1 and inductance L.Wherein, the 6th electric capacity C6 is power filtering capacitor, provides loop to AC signal, reduces the AC internal Resistance of power supply.
From both examples above it can be seen that the radiating circuit of the wake-up signal of the present invention can be independently arranged, it is also possible to be combined with the radiating circuit of audio signal.
In sum, wireless microphone provided by the invention, control whether wake-up signal generation module produces wake-up signal by wake-up switch, the emitted circuit of wake-up signal of output is launched to relevant device after amplifying output, and wake-up device enters duty；The wireless microphone simple in construction of the present invention, easy to operate, use mike to get final product the equipment such as wake on wireless receiver, VOD terminal, it is not necessary to additionally to configure Rouser, be greatly saved cost；And the radiating circuit of wake-up signal of the present invention can be combined with the radiating circuit of audio signal, it is not necessary to additionally designs radiating circuit, it is also possible to be separately provided so that wake-up signal and the generation of audio signal, transmission path are completely independent, and are independent of each other.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalents utilizing description of the present invention and accompanying drawing content to make, or directly or indirectly it is used in relevant technical field, all in like manner include in the scope of patent protection of the present invention.
Claims (7)
1. a wireless microphone, including power module, it is characterised in that also including wake-up switch, wake-up signal generation module and transmitter module, described wake-up signal generation module connects described wake-up switch and transmitter module respectively；Described wake-up switch connects described power module；
Described wake-up signal generation module includes an electric capacity, a switch, a comparator and a threshold voltage module；One end of described electric capacity connects the first input end of described power module and described comparator, other end ground connection；Described switch and described Capacitance parallel connection, the second input of described comparator connects described threshold voltage module；The outfan of described comparator connects the control end of described switch；Described electric capacity is also connected with described transmitter module.
2. wireless microphone according to claim 1, it is characterised in that also include resistance, described electric capacity connects described wake-up switch by described resistance.
3. wireless microphone according to claim 1, it is characterized in that, described transmitter module includes: audion, the first resistance, the second resistance, the first electric capacity, the second electric capacity and inductance, and the electric capacity of described wake-up signal generation module is connected between base stage and the emitter stage of described audion；Described first resistance is connected be followed by between the base stage and colelctor electrode of audion with the first electric capacity and the inductance of parallel connection；The second resistance and second electric capacity of parallel connection is connected between base stage and the emitter stage of described audion；Described power module is connected with the base stage of described audion.
4. wireless microphone according to claim 3, it is characterised in that described transmitter module also includes the 3rd electric capacity, and described 3rd electric capacity is connected between the collector and emitter of described audion.
5. wireless microphone according to claim 3, it is characterised in that also include audio signal generation module；Described transmitter module also includes the first power supply, the first switch and the 4th electric capacity, and described first power supply is by the described first base stage switching connecting triode；Described audio signal generation module and the 4th Capacitance parallel connection are connected between base stage and the emitter stage of described audion.
6. wireless microphone according to claim 5, it is characterised in that described transmitter module also includes the 5th electric capacity and second switch, and described 5th electric capacity is connected with described second switch and is followed by between described first resistance and the colelctor electrode of audion.
7. wireless microphone according to claim 3, it is characterised in that described transmitter module also includes the 6th electric capacity, and described 6th electric capacity is connected between described first power supply and the base stage of audion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279324.2A CN105744394B (en) | 2016-04-29 | 2016-04-29 | A kind of wireless microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279324.2A CN105744394B (en) | 2016-04-29 | 2016-04-29 | A kind of wireless microphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105744394A true CN105744394A (en) | 2016-07-06 |
| CN105744394B CN105744394B (en) | 2019-02-15 |
Family
ID=56287746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610279324.2A Active CN105744394B (en) | 2016-04-29 | 2016-04-29 | A kind of wireless microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105744394B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021168712A1 (en) * | 2020-02-26 | 2021-09-02 | 华为技术有限公司 | Signal receiving method and device, medium, and radar system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1240643A1 (en) * | 1999-12-22 | 2002-09-18 | Ambush Interactive, Inc. | Hands-free, voice-operated remote control transmitter |
| CN201667653U (en) * | 2010-01-25 | 2010-12-08 | 北京森博克智能科技有限公司 | Vehicular wireless Bluetooth device with voice transmission and voice recognition and actuation functions |
| CN203278903U (en) * | 2013-03-15 | 2013-11-06 | 深圳市兴飞科技有限公司 | Mobile phone with function of face attachment screen locking |
| CN104038864A (en) * | 2013-03-08 | 2014-09-10 | 亚德诺半导体股份有限公司 | Microphone Circuit Assembly And System With Speech Recognition |
| CN104378723A (en) * | 2013-08-16 | 2015-02-25 | 上海耐普微电子有限公司 | Microphone with voice wake-up function |
| CN205608434U (en) * | 2016-04-29 | 2016-09-28 | 福建海媚数码科技有限公司 | Wireless microphone |
-
2016
- 2016-04-29 CN CN201610279324.2A patent/CN105744394B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1240643A1 (en) * | 1999-12-22 | 2002-09-18 | Ambush Interactive, Inc. | Hands-free, voice-operated remote control transmitter |
| CN201667653U (en) * | 2010-01-25 | 2010-12-08 | 北京森博克智能科技有限公司 | Vehicular wireless Bluetooth device with voice transmission and voice recognition and actuation functions |
| CN104038864A (en) * | 2013-03-08 | 2014-09-10 | 亚德诺半导体股份有限公司 | Microphone Circuit Assembly And System With Speech Recognition |
| CN203278903U (en) * | 2013-03-15 | 2013-11-06 | 深圳市兴飞科技有限公司 | Mobile phone with function of face attachment screen locking |
| CN104378723A (en) * | 2013-08-16 | 2015-02-25 | 上海耐普微电子有限公司 | Microphone with voice wake-up function |
| CN205608434U (en) * | 2016-04-29 | 2016-09-28 | 福建海媚数码科技有限公司 | Wireless microphone |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021168712A1 (en) * | 2020-02-26 | 2021-09-02 | 华为技术有限公司 | Signal receiving method and device, medium, and radar system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105744394B (en) | 2019-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207742924U (en) | Remote controler based on intelligent sound control | |
| CN204482003U (en) | A kind of Multi-functional wireless microphone | |
| CN106600948B (en) | A kind of infrared remote-control device and terminal | |
| CN104573317B (en) | A kind of photo-electric health parameters detector based on audio port | |
| CN204290889U (en) | A kind of filtering and amplifying circuit | |
| CN105744394A (en) | Wireless microphone | |
| CN205608434U (en) | Wireless microphone | |
| CN211327139U (en) | Intelligent control system applied to aromatherapy machine | |
| CN101420237A (en) | Monitoring circuit | |
| CN208353556U (en) | It is a kind of wirelessly to frequency audio device | |
| CN211981890U (en) | Thing networking wrist-watch monitoring circuit and thing networking wrist-watch | |
| CN109480332B (en) | Ultrasonic electronic cigarette frequency tracking circuit and ultrasonic electronic cigarette | |
| CN202737853U (en) | FM transmitter with low power and high sensitivity | |
| CN102780401A (en) | Intelligent control circuit and intelligent control method of switch power supply efficiency | |
| CN211065049U (en) | Ultrasonic atomization piece working circuit and ultrasonic electronic cigarette | |
| CN202750078U (en) | FM transmitter with low power and high sensitivity | |
| TW201328103A (en) | Wireless power supplying apparatus and method | |
| CN202840964U (en) | Intelligent switch power energy efficiency control circuit | |
| CN112202461A (en) | Power amplification module, Bluetooth module and remote controller | |
| CN207571882U (en) | A kind of infrared forwarding device | |
| CN207650991U (en) | A kind of mobile telephone external infrared launcher based on Type-C interfaces | |
| CN206863886U (en) | One kind control debugging apparatus and infrared emission system | |
| CN204274468U (en) | A kind of photo-electric blood oxygen detection based on audio port | |
| CN219349621U (en) | Household electrical appliance control circuit and system | |
| CN104198080A (en) | Oscillatory temperature sensor powered by RF (radio frequency) signals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |