CN207573614U - A kind of automatic frequency aligning FM wireless microphone transmitter-receiver devices - Google Patents
A kind of automatic frequency aligning FM wireless microphone transmitter-receiver devices Download PDFInfo
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- CN207573614U CN207573614U CN201721437707.4U CN201721437707U CN207573614U CN 207573614 U CN207573614 U CN 207573614U CN 201721437707 U CN201721437707 U CN 201721437707U CN 207573614 U CN207573614 U CN 207573614U
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 22
- 238000013461 design Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 210000004209 hair Anatomy 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
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- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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Abstract
The utility model discloses a kind of automatic frequency aligning FM wireless microphone transmitter-receiver devices, including FM microphone transmitters, receiver, the FM microphone transmitters include transmitter main control chip and respectively transmitter USB interface connected to it, microphone, transmitter switch, transmitter button, transmitter lithium battery management module, transmitter function indicator light, infrared emission tube, FM transmitting chips；The receiver includes receiver main control chip and receiver USB interface connected to it, audio output module, receiver switch, receiver lithium battery management module, receiver functional indicator light, infrared receiver tube, FM receive chip respectively；The infrared emission tube is connect with the infrared receiver tube infrared data, and the FM transmitting chips receive chip wireless connection with the FM.
Description
Technical field
The utility model is related to radio microphone device technical fields, and in particular, to a kind of wireless wheats of automatic frequency aligning FM
Gram wind transmitter-receiver device.
Background technology
FM wireless microphones currently on the market continuously adjust FM's generally by tuning up frequency, turning frequency keying down
Tranmitting frequency, and a display is carried, for showing the tranmitting frequency of current FM.After adjusting frequency, open on the microphone
FM receive capabilities search for FM frequencies by the button on loudspeaker.When FM receives frequencies on FM wireless microphones and loudspeaker
After identical, the sound of microphone can be just heard.Although this mode solves the frequency regulation problem of wireless microphone, but receiving terminal
It is complicated to search for receives frequency signal operation step, takes and generally requires 20-30 seconds or so, if operation is unskilled, taking can more
It is more.At this moment, if encountering frequency interferences, it is necessary to adjust the frequency regulating key on FM wireless microphones again to change transmitting
Frequency, loudspeaker end re-searches for FM frequencies, greatly reduces the usage experience of FM wireless microphones.
Utility model content
The purpose of this utility model is to provide a kind of automatic frequency aligning FM wireless microphone transmitter-receiver devices, to solve
The problems mentioned above in the background art.
To achieve the above object, the utility model provides following technical solution：
A kind of automatic frequency aligning FM wireless microphone transmitter-receiver devices, it is described including FM microphone transmitters, receiver
FM microphone transmitters include transmitter main control chip and transmitter USB interface connected to it, microphone, transmitter are opened respectively
Pass, transmitter button, transmitter lithium battery management module, transmitter function indicator light, infrared emission tube, FM transmitting chips；
The receiver includes receiver main control chip and respectively receiver USB interface connected to it, audio output module, receiver
Switch, receiver lithium battery management module, receiver functional indicator light, infrared receiver tube, FM receive chip；The infrared ray
Transmitting tube is connect with the infrared receiver tube infrared data, and the FM transmitting chips receive chip wireless connection with the FM.
Here, the transmitter main control chip, receiver main control chip are each responsible for the control to coupled each section
The storage of system and data；The transmitter USB interface, receiver USB interface provide DC/ for FM microphone transmitters, receiver
The power input of 5V and carry out data transmission with the external world；The microphone is used for picking up the sound for needing to amplify；The transmitter is opened
It closes, receiver switchs the power supply on and off for being respectively intended to control FM microphone transmitters, receiver；The transmitter button is certainly
It moves to frequency function button, automatic frequency aligning is carried out for operating；The transmitter lithium battery management module, receiver lithium battery management
Module respectively includes charging circuit and lithium battery, is each responsible for providing FM microphone transmitters, receiver electricity and to lithium electricity
It charges in pond；The transmitter function indicator light, receiver functional indicator light are respectively used to instruction FM microphone transmitters, receive
Situations such as working condition of device, power source charges；The infrared emission tube is used for transmission automatic frequency aligning instruction；The infrared ray connects
Closed tube instructs for receiving automatic frequency aligning；The FM transmitting chips are used for transmission the sound of microphone pickup；The FM receives chip
For receiving the wind-borne digital audio and video signals of FM Mikes；The audio output module is used to turn the digital audio and video signals received
It changes analog audio signal into, and is exported by plug.
Preferably, the receiver be equipped with receiver bearing structure, the receiver main control chip, receiver USB interface,
Audio output module, receiver switch, receiver lithium battery management module, receiver functional indicator light, infrared receiver tube, FM
It receives chip to be set in the receiver bearing structure, be equipped with and the receiver USB on the outside of the receiver bearing structure
The corresponding receiver USB openings of interface, audio output plug corresponding with the audio output module are switched with the receiver
Corresponding receiver switch opening, receiver functional indicator light corresponding with the receiver functional indicator light be open, with it is described
The corresponding infrared receiver mouth of infrared receiver tube, reception antenna corresponding with FM reception chips.
Here, the receiver bearing structure plays carrying and makees for fixing and protecting all kinds of electronic components set in the inner
With；The receiver USB openings are for providing the opening of USB plug insertion, and to charge and transmit data, data here are main
It is that software write-in, upgrading etc. are carried out to receiver main control chip；The receiver switch opening is used to provide switch for user
The practical operation switch opening mode of opening；The infrared receiver mouth is used to provide the IR signal reception window of infrared receiver tube
Mouthful；The reception antenna stretching is longer, for increasing the transmission distance of wireless signal.In this way, by the design to receiver and
It improves, entire product is made to can be applied on the existing stereo set with audio sockets, without being set to existing sound equipment
It is standby to be transformed accordingly, so as to stronger suitability and applicability.
Preferably, the audio output plug is one kind or several in the standard plug of 2.5mm, 3.5mm or 6.5mm
Kind, to be adapted to the audio sockets of different type stereo set.
Preferably, the FM microphone transmitters are equipped with transmitter bearing structure, and the transmitter bearing structure includes solid
Determine structure, main body, microphone connecting leg, the transmitter main control chip, transmitter USB interface, transmitter switch, transmitter button,
Transmitter lithium battery management module, transmitter function indicator light, infrared emission tube, FM transmitting chips are set on the main body
It is interior, it is correspondingly provided with transmitter USB openings, transmitter switch opening, transmitter key opening, transmitter function on the outside of the main body
Indicator light opening, infrared emission mouth, described microphone connecting leg one end is fixedly connected with the main body, the other end is fixed with the microphone
Connection, the main body pass through the line that is set in the microphone connecting leg and microphone data connection.
With receiver bearing structure similarly, related content does not repeat.Here, supplementary explanation, the transmitter are pressed
Key opening is used to provide automatic frequency aligning button exposed portion for user, easy to operation to change the FM frequencies emitted, and by frequency values
It is sent to the infrared receiver tube of receiver.
Preferably, the receiver functional indicator light, transmitter function indicator light respectively include working station indicator and
Power source charges indicator light, is respectively used to indicating operating status and charged state.
Preferably, the fixed structure includes wearing folder, the main body, microphone connecting leg be removably connected to described in wear folder
One end, the folder of wearing meet ergonomic designs, improve the comfort of wearer.
Preferably, the fixed structure includes ear-hang, and the main body, microphone connecting leg are removably connected on the ear-hang,
Ear-hang meets ergonomic designs, improves the comfort of wearer.Here, by detachable connection, convenient for user's root
According to personal like to wearing folder, ear-hang selects, also can be used simultaneously wear folder and ear-hang with enhance its fix reliability.
Preferably, the microphone connecting leg is adjustable hose, can adjust pickup angle, so as to according to different head dummys, face
Type is preferably directed at lip, to obtain best pickup effect, improves and wears experience.
Preferably, the microphone is furnished with noise-reducing sponge, and for noise reduction, the sound for making pickup is apparent.
For the utility model is better described, now its workflow is described as follows：
1. operating the transmitter switch by user, the FM microphone transmitters are opened；
2. the transmitter main control chip work of the FM microphone transmitters, software initialization, and enter System self-test journey
Sequence, this process 3-5 seconds；
3. System self-test includes：The detection of battery capacity, whether battery, which needs, is charged；Transfer current FM tranmitting frequencies etc.；
Whether work light is opened；
4. opening the receiver switch, the receiver is made to enter working condition；
5. by the infrared emission mouth of the FM microphone transmitters, the infrared receiver mouth of the receiver is directed at, presses institute
State transmitter button；
6. the transmitter main control chip can be sent the information containing FM tranmitting frequencies by infrared transmitting tube；
7. after the infrared receiver tube of the receiver receives this signal, the receiver main control chip starts
The FM of the receiver receives chip；
8. the receives frequency of FM reception chips is adjusted to the frequency specified, institute by the receiver main control chip simultaneously
The FM reception chips for stating receiver receive the voice signal that launching apparatus for radio microphone is sent out；
9. voice signal is through the audio output module, then exported to corresponding stereo set by audio output plug, just
It can be made a sound by stereo set；
10. when the frequency of occurrences is interfered, by the infrared emission mouth of the FM microphone transmitters, it is directed at the receiver
Infrared receiver mouth, press the transmitter button again, and the transmitter main control chip can be by new containing FM tranmitting frequencies
Information is sent by infrared transmitting tube；
11. after the receiver receives this signal, new receives frequency can be automatically adjusted to, so as to the interference that is staggered
Frequency.
Compared with prior art, the beneficial effects of the utility model are：Automatic frequency aligning FM described in the utility model is wireless
Microphone transmitter-receiver device solves FM wireless microphones in use, due to the variation of tranmitting frequency, and receives
End cannot synchronizing frequency in time operational issue, optimize complex operations of traditional FM microphones during frequency is matched, subtract
User is lacked to the time loss during frequency, has optimized the operating experience of user, effectively increase and reduce operating procedure, use
Efficiency realizes a key automatic frequency aligning function, by the design and improvement to receiver, can be applied to entire product existing
The stereo set with audio sockets on, without existing stereo set is transformed accordingly, have user experience
It is good, service efficiency is high, time saving intelligent, suitability and it is with strong applicability the features such as.
Description of the drawings
Fig. 1 is the circuit diagram of the utility model embodiment；
Fig. 2 is the structure chart of the utility model embodiment FM microphone transmitters；
Fig. 3 is the facing structure figure of the utility model embodiment receiver；
Fig. 4 is the side block diagram of the utility model embodiment receiver；
Wherein：1. main body, 2. microphone connecting legs, 3. transmitter USB openings, 4. transmitter switch, 5. transmitter buttons, 6. is red
Outer emission port, 7. working station indicators, 8. power source charges indicator lights, 9. infrared receiver mouths, 10. wear folder, 11. ear-hangs, and 12.
Microphone, 13. receiver bearing structures, 14. receiver USB openings, 15. audio output plugs, 16. receivers switch, 17. receive
Antenna.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
With reference to shown in Fig. 1-Fig. 4, a kind of automatic frequency aligning FM wireless microphone transmitter-receiver devices are sent out including FM microphones
Emitter, receiver, the FM microphone transmitters include transmitter main control chip and transmitter USB connected to it connects respectively
It is mouth, microphone 12, transmitter switch 4, transmitter button 5, transmitter lithium battery management module, transmitter function indicator light, infrared
Line transmitting tube, FM transmitting chips；The receiver includes receiver main control chip and receiver USB connected to it connects respectively
Mouth, audio output module, receiver switch 16, receiver lithium battery management module, receiver functional indicator light, infrared receiver
Pipe, FM receive chip；The infrared emission tube is connect with the infrared receiver tube infrared data, the FM transmitting chips with
The FM receives chip wireless connection.
Here, the transmitter main control chip, receiver main control chip are each responsible for the control to coupled each section
The storage of system and data；The transmitter USB interface, receiver USB interface provide DC/ for FM microphone transmitters, receiver
The power input of 5V and carry out data transmission with the external world；The microphone 12 is used for picking up the sound for needing to amplify；The transmitter
Switch 4, receiver switch 16 are respectively intended to the power supply on and off of control FM microphone transmitters, receiver；The transmitter is pressed
Key 5 is automatic frequency aligning function button, and automatic frequency aligning is carried out for operating；The transmitter lithium battery management module, receiver lithium
Battery management module respectively includes charging circuit and lithium battery, is each responsible for providing electricity to FM microphone transmitters, receiver
It charges with to lithium battery；The transmitter function indicator light, receiver functional indicator light are respectively used to instruction FM microphone transmittings
Situations such as device, the working condition of receiver, power source charges；The infrared emission tube is used for transmission automatic frequency aligning instruction；It is described
Infrared receiver tube instructs for receiving automatic frequency aligning；The FM transmitting chips are used for transmission the sound of the pickup of microphone 12；It is described
FM receives the digital audio and video signals that chip is used to receive the transmission of FM microphone transmitters；The audio output module is used to receive
Digital audio and video signals be converted into analog audio signal, and pass through plug and export.
The receiver is equipped with receiver bearing structure 13, the receiver main control chip, receiver USB interface, audio
Output module, receiver switch 16, receiver lithium battery management module, receiver functional indicator light, infrared receiver tube, FM connect
It receives chip to be set in the receiver bearing structure 13,13 outside of receiver bearing structure is equipped with and the receiver
The corresponding receiver USB openings 14 of USB interface, audio output plug 15 corresponding with the audio output module connect with described
Receive 16 corresponding receiver switch opening of device switch, receiver functional indicator light corresponding with the receiver functional indicator light is opened
Mouth, infrared receiver mouth 9 corresponding with the infrared receiver tube, reception antenna 17 corresponding with FM reception chips.
Here, the receiver bearing structure 13 plays carrying for fixing and protecting all kinds of electronic components set in the inner
Effect；The receiver USB openings 14 are used to provide the interface of USB plug insertion, to charge and transmit data, data here
Software write-in, upgrading etc. mainly are carried out to receiver main control chip；The receiver switch is open to provide for user
The practical operation switch opening mode of switch opening；The infrared receiver mouth 9 is used to provide the infrared signal of infrared receiver tube
Receive window；The reception antenna 17 stretch out it is longer, for increasing the transmission distance of wireless signal.In this way, by receiver
Design and improvement, entire product is made to can be applied on the existing stereo set with audio sockets, without to existing
Stereo set be transformed accordingly, so as to stronger suitability and applicability.
The audio output plug 15 is one kind in the standard plug of 2.5mm, 3.5mm or 6.5mm, is set with being adapted to sound equipment
Subject to standby audio sockets.
The FM microphone transmitters be equipped with transmitter bearing structure, the transmitter bearing structure include fixed structure,
Main body 1, microphone connecting leg 2, the transmitter main control chip, transmitter USB interface, transmitter switch 4, transmitter button 5, transmitting
Device lithium battery management module, transmitter function indicator light, infrared emission tube, FM transmitting chips are set in the main body 1, institute
State that the outside of main body 1 is correspondingly provided with transmitter USB openings 3, transmitter switch opening, transmitter key opening, transmitter function refer to
Show lamp opening, infrared emission mouth 6, described 2 one end of microphone connecting leg is fixedly connected with the main body 1, the other end and the microphone 12
It is fixedly connected, the main body 1 passes through the line that is set in the microphone connecting leg 2 and 12 data connection of microphone.
Here, similarly, related content is not made for the dependency structure of the transmitter bearing structure and receiver bearing structure 13
It repeats.Here, supplementary explanation, for being provided for user, automatic frequency aligning button is exposed to be opened the transmitter key opening
Mouthful, the infrared receiver tube easy to operation for changing the FM frequencies of transmitting, and frequency values being sent to receiver.
The receiver functional indicator light, transmitter function indicator light respectively include working station indicator 7 and power supply fills
Electric indicator light 8, is respectively used to indicating operating status and charged state.
The fixed structure includes wearing folder 10, and the main body 1, microphone connecting leg 2, which are removably connected to, described wears folder 10
One end, the folder 10 of wearing meet ergonomic designs, improve the comfort of wearer.
The fixed structure includes ear-hang 11, and the main body 1, microphone connecting leg 2 are removably connected on the ear-hang 11, ear
It hangs 11 and meets ergonomic designs, improve the comfort of wearer.Here, by detachable connection, convenient for user's root
According to personal like to wearing folder 10, ear-hang 11 selects, also can be used simultaneously wear folder 10 and ear-hang 11 fixed with enhancing it
Reliability.
The microphone connecting leg 2 is adjustable hose, can adjust pickup angle, so as to more preferable according to different head dummys, shape of face
Ground is directed at lip, to obtain best pickup effect, improves and wears experience.
The microphone 12 is furnished with noise-reducing sponge, and for noise reduction, the sound for making pickup is apparent.
For the utility model is better described, now its workflow is described as follows：
1. operating the transmitter switch 4 by user, the FM microphone transmitters are opened；
2. the transmitter main control chip work of the FM microphone transmitters, software initialization, and enter System self-test journey
Sequence, this process 3-5 seconds；
3. System self-test includes：The detection of battery capacity, whether battery, which needs, is charged；Transfer current FM tranmitting frequencies etc.；
Whether work light is opened；
4. opening the receiver switch 16, the receiver is made to enter working condition；
5. by the infrared emission mouth 6 of the FM microphone transmitters, the infrared receiver mouth 9 of the receiver is directed at, is pressed
The transmitter button 5；
6. the transmitter main control chip can be sent the information containing FM tranmitting frequencies by infrared transmitting tube；
7. after the infrared receiver tube of the receiver receives this signal, the receiver main control chip starts
The FM of the receiver receives chip；
8. the receives frequency of FM reception chips is adjusted to the frequency specified, institute by the receiver main control chip simultaneously
The FM reception chips for stating receiver receive the voice signal that launching apparatus for radio microphone is sent out；
9. voice signal is exported through the audio output module, then by audio output plug 15 to corresponding stereo set,
It can be made a sound by stereo set；
10. when the frequency of occurrences is interfered, by the infrared emission mouth 6 of the FM microphone transmitters, it is directed at the receiver
Infrared receiver mouth 9, press the transmitter button again, new can be contained FM tranmitting frequencies by the transmitter main control chip
Information sent by infrared transmitting tube；
11. after the receiver receives this signal, new receives frequency can be automatically adjusted to, so as to the interference that is staggered
Frequency.
Experiments have shown that the automatic frequency aligning FM wireless microphone transmitter-receiver devices of the utility model, from startup FM Mikes
Wind transmitter, receiver by FM Wireless microphone receivers alignment receiver designated position, press transmitter button, FM Mikes
Wind transmitter and receiver can be transferred to identical simultaneously, complete to frequency, whole process only needs 5-10 seconds or so.
If encounter frequency interferences, it is only necessary to FM microphone transmitters again to receiver designated position, press FM wheats
Transmitter button 5 on gram wind transmitter, at this point, two equipment again can be simultaneously to frequency, whole process, it is only necessary to a 5-10 second left sides
It is right.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case of the principle and spirit for not departing from the utility model, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (9)
1. a kind of automatic frequency aligning FM wireless microphone transmitter-receiver devices, which is characterized in that including FM microphone transmitters, connect
Receive device, the FM microphone transmitters include transmitter main control chip and respectively transmitter USB interface connected to it, microphone,
Transmitter switch, transmitter button, transmitter lithium battery management module, transmitter function indicator light, infrared emission tube, FM hairs
Core shooting piece；The receiver includes receiver main control chip and respectively receiver USB interface connected to it, audio output mould
Block, receiver switch, receiver lithium battery management module, receiver functional indicator light, infrared receiver tube, FM receive chip；
The infrared emission tube is connect with the infrared receiver tube infrared data, and the FM transmitting chips receive chip with the FM
Wireless connection.
2. automatic frequency aligning FM wireless microphone transmitter-receiver devices according to claim 1, which is characterized in that described to connect
It receives device and is equipped with receiver bearing structure, the receiver main control chip, receiver USB interface, audio output module, receiver are opened
Pass, receiver lithium battery management module, receiver functional indicator light, infrared receiver tube, FM receive chip and are set on described connect
It receives in device bearing structure, is opened on the outside of the receiver bearing structure equipped with receiver USB corresponding with the receiver USB interface
Mouth, audio output plug corresponding with the audio output module, receiver corresponding with the receiver switch switch opening,
Receiver functional indicator light corresponding with the receiver functional indicator light is open, is corresponding with the infrared receiver tube infrared
Receiving port, reception antenna corresponding with FM reception chips.
3. automatic frequency aligning FM wireless microphone transmitter-receiver devices according to claim 2, which is characterized in that the sound
Frequency output plug is one kind or several in the standard plug of 2.5mm, 3.5mm or 6.5mm.
4. the automatic frequency aligning FM wireless microphone transmitter-receiver devices according to any one in claim 1-3, special
Sign is that the FM microphone transmitters are equipped with transmitter bearing structure, and the transmitter bearing structure includes fixed structure, master
Body, microphone connecting leg, the transmitter main control chip, transmitter USB interface, transmitter switch, transmitter button, transmitter lithium electricity
Pond management module, transmitter function indicator light, infrared emission tube, FM transmitting chips are set in the main body, the main body
Outside be correspondingly provided with transmitter USB openings, transmitter switch opening, transmitter key opening, transmitter function indicator light opening,
Infrared emission mouth, described microphone connecting leg one end is fixedly connected with the main body, the other end is fixedly connected with the microphone, the master
Body passes through the line that is set in the microphone connecting leg and microphone data connection.
5. automatic frequency aligning FM wireless microphone transmitter-receiver devices according to claim 4, which is characterized in that described to connect
Receive device functional indicator light, transmitter function indicator light respectively includes working station indicator and power source charges indicator light.
6. automatic frequency aligning FM wireless microphone transmitter-receiver devices according to claim 5, which is characterized in that described solid
Determine structure to include wearing folder, the main body, microphone connecting leg are removably connected to described wear and press from both sides one end, and the folder of wearing meets people
Body ergonomic designs improve the comfort of wearer.
7. automatic frequency aligning FM wireless microphone transmitter-receiver devices according to claim 6, which is characterized in that described solid
Determine structure and include ear-hang, the main body, microphone connecting leg are removably connected on the ear-hang.
8. automatic frequency aligning FM wireless microphone transmitter-receiver devices according to claim 7, which is characterized in that the miaow
Head connecting leg is adjustable hose.
9. automatic frequency aligning FM wireless microphone transmitter-receiver devices according to claim 8, which is characterized in that the miaow
Head is furnished with noise-reducing sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721437707.4U CN207573614U (en) | 2017-11-01 | 2017-11-01 | A kind of automatic frequency aligning FM wireless microphone transmitter-receiver devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721437707.4U CN207573614U (en) | 2017-11-01 | 2017-11-01 | A kind of automatic frequency aligning FM wireless microphone transmitter-receiver devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207573614U true CN207573614U (en) | 2018-07-03 |
Family
ID=62693784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721437707.4U Expired - Fee Related CN207573614U (en) | 2017-11-01 | 2017-11-01 | A kind of automatic frequency aligning FM wireless microphone transmitter-receiver devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207573614U (en) |
-
2017
- 2017-11-01 CN CN201721437707.4U patent/CN207573614U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180703 |