CN108683976A - Wireless microphone converter technique based on one-way communication - Google Patents
Wireless microphone converter technique based on one-way communication Download PDFInfo
- Publication number
- CN108683976A CN108683976A CN201810459331.XA CN201810459331A CN108683976A CN 108683976 A CN108683976 A CN 108683976A CN 201810459331 A CN201810459331 A CN 201810459331A CN 108683976 A CN108683976 A CN 108683976A
- Authority
- CN
- China
- Prior art keywords
- uhf
- frequency
- receiving terminal
- transmitting terminal
- transmitting
- 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.)
- Pending
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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of wireless microphone converter technique based on one-way communication, including UHF frequency-selectings software, transmitting terminal and receiving terminal, the UHF frequency-selectings software generates 50 non-interfering frequencies, a respective in store same frequency meter for including 50 frequencies in the microcontroller of the transmitting terminal and receiving terminal, this 50 frequencies pass through UHF frequency-selecting software operations.The present invention carries out one-way communication by the subsidiary communications function of UHF chips itself, without using third-party two-way communication, without increasing additional communication chip and module, the whole BOM costs of product are saved in this way, many costs are reduced for the mass production of product.
Description
Technical field
The present invention relates to wireless microphone converter technique field more particularly to a kind of wireless microphones based on one-way communication
Converter technique.
Background technology
In current existing wireless microphone system, transmitter and receiver frequency point is fixed, the work of wireless microphone
It is usually VHF wave bands or UHF waveband as frequency range, frequency is fixed, or manually adjusts frequency, referred to as fixed frequency
Microphone.Because of VHF wave bands or UHF waveband long distance of signal transmission (spacious place may reach 5-30 meters) and ability through walls
(can penetrate 2-4 walls) is stronger, if this determine frequency microphone when some karaoke chambers use, the tune of microphone
Match and provide just it is cumbersome, because if certain 2 room 2 to the frequency point of microphone have overlapping or difference it is too close, can cause to go here and there
Frequency interferes, and will produce a large amount of noises, or even wireless microphone can be allowed to can not work normally.
Meanwhile during radio wave transmissions, Intermodulation Interference is will produce, the new frequency mutually recalled, and can be to other
Microphone interferes, and determines the voice that frequency microphone often will appear the transmitting of a wireless microphone, has more receiving terminals to receive
To the case where or more microphones, send out the same frequency, cause receiver that can not normally receive.
Intermodulation Interference refer to when two or more interference signals while when being added to receiver, due to nonlinear effect, this
The combination frequency of two interference is exactly equal to or passes through receiver close to useful signal frequency sometimes, wherein three ranks are mutual
Adjust most serious.
Third order intermodulation refers to making signal since non-linear factor exists when two signals are in a linear system
Second harmonic generates beat (mixing) generated parasitic signal afterwards with the fundamental wave of another signal.For example the second harmonic of F1 is
2F1, he produces parasitic signal 2F1-F2 with F2.Since a signal is second harmonic, another signal is fundamental signal, is closed
As three rank signals, so 2F1-F2 is referred to as third order intermodulation signal.Due to F2, F1 signals relatively, also result in 2F1-F2,
2F2-F1 can interfere with original baseband signal F1, F2, and here it is third order intermodulation interference.
Therefore, it is necessary to be researched and developed, to provide a kind of technology solving above-mentioned currently available technology existing defects
Scheme solves the defect that existing wireless microphone generates Intermodulation Interference during radio wave transmissions.
Invention content
The wireless microphone converter technique based on one-way communication that the purpose of the present invention is to provide a kind of, passes through UHF chips
The subsidiary communications function of itself carries out one-way communication, it is not necessary to third-party two-way communication is used, to solve existing wireless wheat
Gram wind generates the defect of Intermodulation Interference during radio wave transmissions.
To achieve the above object, the present invention uses following technical scheme：
A kind of wireless microphone converter technique based on one-way communication, including UHF frequency-selectings software, transmitting terminal and receiving terminal,
The transmitting terminal include miaow core, UHF transmitting chips, transmitting terminal microcontroller, the switching on and shutting down button being connect with transmitting terminal microcontroller and
MIC status indicator lamps, the UHF transmitting chips are provided with UHF transmitting antennas, and the receiving terminal includes receiving terminal microcontroller, UHF
Chip, USB Audio chips, USB Type A male connectors are received, the receiving terminal microcontroller is provided with UHF states LED and system
State LED, the UHF receptions chip are provided with UHF reception antennas, and the UHF frequency-selectings software generates 50 non-interfering frequencies
A respective in store same frequency meter for including 50 frequencies in the microcontroller of rate, the transmitting terminal and receiving terminal, this 50
Frequency passes through UHF frequency-selecting software operations.
Further, the UHF transmitting chips are using KT0646M chips, the unidirectional subsidiary communications work(of included 4 bytes
Can, the UHF receives chip and realizes unidirectional receive using KT0656M chips, included unidirectional secondary channel communication function.
Further, there are one 16 unique ID for the transmitting terminal microcontroller, and in the heartbeat packet for emitting 4 bytes
When, before 2 bytes be transmitting terminal microcontroller 16 unique ID, the transmitting terminal is switched on every time, tranmitting frequency be all from
It is randomly selected in 50 frequencies in frequency meter, and ensures that this tranmitting frequency is different from last time booting tranmitting frequency.
Further, the receiving terminal USB Type A male connectors are inserted into host and power on, power on receiving terminal and transmitting terminal in 6 seconds
It carries out to code, the receiving terminal initialization UHF receives frequency point, is set as frequency indices 0 to receive frequency point, in real time monitoring UHF signals
RSSI value.
Further, the RSSI value be less than signal threshold values when, receiving terminal UHF states LED can extinguish, the RSSI value is held
Continue the when of being less than signal threshold values more than 2 seconds, receiving terminal enters frequency sweep flow.
Further, the frequency sweep flow includes that receiving terminal searches for 50 frequency points since frequency point index 0 in frequency meter,
If detecting that RSSI is more than signal threshold values, normal searching to the frequency point is then turned on UHF auxiliary channels and receives the transmitting terminal heart
Packet is jumped, confirming transmitting terminal ID, whether the ID preserved with this receiving terminal matches, if it does, then this frequency sweep is completed.
Further, receiving terminal search less than effective frequency point or after searching frequency point, transmitting terminal ID and receiving terminal
The ID of preservation is mismatched, then receiving terminal can index frequency point automatically plus 1 continues search for；The frequency point index is greater than or equal to 49
When, frequency point is indexed clear 0 and searched for from the beginning by receiving terminal.
Further, the receiving terminal is to code step with transmitting terminal：First, user pins transmitting terminal MIC on ＆ off switches 3 seconds
More than, transmitting terminal MIC status indicator lamps can fast blink；Then, it while transmitting terminal MIC status indicator lamps flicker, will connect
Receiving end is inserted into the USB interface of host computer；Receiving terminal powers on, and the LED flickers of UHF states indicate that receiving terminal comes into pattern,
In 6 seconds, UHF states LED extinguishes, and indicates to code success.
Further, UHF transmission powers are turned down when the receiving terminal and transmitting terminal are carried out to code, transmitting terminal and receiving terminal
Maximum distance within 1 meter.
Compared to the prior art, the present invention is based on the advantageous effects of the wireless microphone converter technique of one-way communication is：1.
By determining frequency wireless microphone actual test comparison with tradition, wireless microphone of the present invention, which can evade string frequency, to be interfered, frequency sweep mistake
Journey is fast, tests longest frequency point search time no more than 3 seconds.
It is one-to-one work, there is no more after 2. the wireless microphone transmitting terminal and receiving terminal in the present invention are to code
String frequency is led to the problem of when using simultaneously in a space with model microphone to interfere.
3. the microphone transmitting terminal in the present invention selects a frequency point at random from 50 frequency points carrys out work, string frequency probability is very
It is low.
Description of the drawings
Fig. 1 is the wireless microphone transmitting terminal hardware block diagram of the present invention.
Fig. 2 is the wireless microphone receiving terminal hardware block diagram of the present invention.
Fig. 3 is the wireless microphone transmitting terminal software flow pattern of the present invention.
Fig. 4 is the wireless microphone receiving terminal software main flow chart of the present invention.
Fig. 5 is the wireless microphone receiving terminal frequency sweep flow chart of the present invention.
Fig. 6 is wireless microphone transmitting terminal and receiving terminal of the invention to code flow chart.
Specific implementation mode
In order to more fully understand the present invention technology contents, with reference to specific embodiment to technical scheme of the present invention into
One step introduction and explanation, but not limited to this.
The present invention is based on the wireless microphone converter techniques of one-way communication not to be interfere with each other for 50 by the generation of UHF frequency-selecting softwares
Frequency, a respective in store same table for including 50 frequencies in the microcontroller of wireless microphone transmitting terminal and receiving terminal
Lattice, this 50 frequencies pass through UHF frequency-selecting software operations, have weeded out arbitrary 2 frequencies superposition and the third order intermodulation frequency of generation.
As shown in Figure 1, the wireless microphone transmitting terminal hardware block diagram of the present invention is provided, including miaow core, UHF emit core
Piece, transmitting terminal microcontroller, the switching on and shutting down button being connect with transmitting terminal microcontroller and MIC status indicator lamps, the miaow core are sent out with UHF
Core shooting piece connects and provides voice input, the UHF transmitting chips be provided with UHF transmitting antennas, included 4 bytes it is unidirectional auxiliary
Help communication function, the UHF transmitting chips that the KT0646M chips of micro- company of Quantum, the transmitting terminal microcontroller is used to pass through I2C
Bus initializes and is arranged the functions such as UHF transmitting chip launching frequencies, the MIC status indicator lamps when microphone is switched on,
Indicator light length is bright, and the MIC status indicator lamps are when microphone transmitting terminal and receiving terminal are to code, indicator light fast blink.
As shown in figure 3, providing the software flow of the wireless microphone transmitting terminal of the present invention, the microphone transmitting terminal monolithic
There are one 16 unique ID for machine, and when emitting the heartbeat packet of 4 bytes, before 2 bytes be the 16 of transmitting terminal microcontroller
The unique ID in position, the microphone transmitting terminal are switched on every time, and tranmitting frequency is all random from 50 UHF frequencies in frequency meter
It extracts, and is controlled on UHF frequency-selecting softwares, ensure that this tranmitting frequency is different from last time booting tranmitting frequency.
Specifically, in the incipient stage, when to transmitting terminal attonity, transmitting terminal enters suspend mode, and user key-press wakes up hair
End is penetrated, transmitting terminal is scanned actuation of keys, confirms whether user presses microphone switch machine button, if not pressing, emitting
End keeps suspend mode, if pressing, transmitting terminal selects a frequency point at random from frequency meter, and is opened by UHF transmitting chips
It opens UHF transmitting progress heartbeat packet transmissions and includes unique ID of transmitting terminal itself 16, at this point, transmitting terminal when sending heartbeat packet
Persistently scan button, when scanning do not press switching on and shutting down button to user when, transmitting terminal persistently send heartbeat packet, when scanning to use
When switching on and shutting down button is pressed at family, transmitting terminal close UHF transmittings, transmitting terminal enters suspend mode.
As shown in Fig. 2, providing the wireless microphone receiving terminal hardware block diagram of the present invention, including receiving terminal microcontroller, UHF
Chip, USB Audio chips, USB Type A male connectors are received, the receiving terminal microcontroller is provided with UHF states LED and system
State LED, the UHF receptions chip are provided with UHF reception antennas, and the UHF receives chip using micro- company of Quantum
KT0656M chips, included unidirectional secondary channel communication function realize that unidirectional reception, the receiving terminal microcontroller pass through I2C buses
It is responsible for UHF receiving chip solution to initialize and functions, the USB Audio chips such as UHF reception chip reception frequency points is arranged
Voice after tune is packaged into the usb audio data packet of standard and sends host computer to by USB Type A male connectors；It will be described
USB Type A male connectors are inserted into upper machine host, and when receiving terminal powers on, system status led can flicker, when receiving terminal receives effectively
When UHF signals, UHF state LED presidents are bright, when receiving terminal and transmitting terminal are to code, UHF state LED fast blinks.
As shown in figure 4, providing the software flow of the wireless microphone receiving terminal of the present invention, USB Type A male connectors are inserted into
Upper machine host, receiving terminal power on start-up operation, and receiving terminal powers in 6 seconds as receiving terminal with transmitting terminal to code period, transmitting terminal
Send out during this period to code instruction (it is described to code stream journey as shown in fig. 6, below separately explain, so section is not repeating), receive
End initialization UHF receives frequency point, and frequency indices 0 are set as reception frequency point and in real time monitoring UHF signal strength RSSI values, if
It was found that the RSSI received is less than a certain threshold values, then it represents that transmitting terminal shuts down or UHF dropouts, it is also possible to be transmitting terminal and connect
The distance of receiving end has exceeded the maximum distance of reception or has barrier, and receiving terminal UHF states LED can extinguish at this time, when lasting
RSSI value is less than threshold values within more than 2 seconds, then receiving terminal enters frequency sweep flow, and frequency sweep flow refers to Fig. 5.
Specifically, USB Type A male connectors are inserted into upper machine host, receiving terminal powers on start-up operation, and receiving terminal powers on 6
User is completed in second to code, receiving terminal microcontroller receives chip to UHF and initialized and be arranged reception frequency point, monitors simultaneously
UHF receiving signal sensitivity RSSI values, when RSSI value be not less than signal threshold values when, UHF states LED long it is bright, when RSSI value ＜ letter
Number threshold values and the above time for 2 seconds, UHF states LED extinguish, and receiving terminal is in shutdown or dropout state, at this point,
Receiving terminal enters frequency sweep flow, and after the completion of frequency sweep, UHF receives frequencies are arranged in receiving terminal microcontroller, and UHF states LED long is bright.
As shown in figure 5, providing the wireless microphone receiving terminal frequency sweep flow of the present invention, in order to prevent during frequency sweep, wheat
Gram wind receiving terminal generates noise, by audio mute during entire frequency sweep.When transmitting terminal shutdown or transmitting terminal are far from range of receiving,
Then receiving terminal can search for 50 since frequency point index 0 automatically into frequency sweep flow, i.e. automatic channel search, receiving terminal in frequency meter
Frequency point.Method for fast searching is first used, if detecting that (this signal threshold values depends on hardware to RSSI, with transmitting terminal more than 30
Transmission power is related with intensity, can be adjusted according to actual conditions), then normal searching to the frequency point, is then turned on UHF auxiliary channels
Monitor the heartbeat packet from transmitting terminal, after receiving heartbeat packet, confirm transmitting terminal ID whether the ID phases preserved with this receiving terminal
Match, if it does, then this frequency sweep is completed, this frequency is arranged in receiving terminal, and cancels mute.If receiving terminal is searched for less than effective
Frequency point, or after searching frequency point, ID is mismatched, then receiving terminal frequency point can index to automatic plus 1 continues search for, until search
Until the transmitting terminal matched sends out effective frequency point.If frequency point index is greater than or equal to 49, frequency point is indexed clear 0, after
It is continuous to search for from the beginning.
As shown in fig. 6, providing wireless microphone transmitting terminal of the invention and receiving terminal to code stream journey, in order to prevent to code distance
It is too far away, it is easy ID codes to arriving other receiving terminal, so turning down UHF transmission powers when to code, when to code, it is ensured that hair
The maximum distance of end and receiving terminal is penetrated within 1 meter, is to code step specifically：First, user pins transmitting terminal MIC on ＆ off switches 3
Second or more, transmitting terminal MIC indicator lights can fast blink；Then, it while transmitting terminal MIC indicator lights flicker, will receive rapidly
End is inserted into the USB interface of host computer；Receiving terminal powers on, and the flicker of UHF indicator lights indicates that receiving terminal comes into pattern,
If in 6 seconds, UHF indicator lights extinguish, indicate to carry out again to code code success if failed to code.
Specifically, user pins transmitting terminal MIC on ＆ off switches and does not put for 3 seconds, and into pattern, audio mute is opened UHF
Transmitting, and switch to code frequency point, UHF transmission powers are turned down, receiving terminal powers on booting, opens UHF and receives, and will receive frequency point
It is set as to code frequency point；At this point, transmitting terminal opens 5 seconds timers of auxiliary channel and synchronous unlatching, receiving terminal opens UHF auxiliary letters
Road and 6 seconds timers of synchronous averaging, transmitting terminal transmitting are attached to the unique ID of transmitting terminal microcontroller 16 and random work to code instruction
Frequency point indexes, and then, launching frequency is set to working frequency points, if at this point, receiving terminal is in 6 seconds in the periodically 5 second time
Transmitting terminal is received to code instruction, then preserves transmitting terminal ID to EEPROM, to code success, if receiving terminal does not receive hair in 6 seconds
End is penetrated to code instruction, then this fails to code.
Specifically, the working frequency points refer to the frequency meter that receiving-transmitting sides are stored in respective ROM, the frequency meter
There are 50 frequency points for not generating Intermodulation Interference mutually through UHF frequency-selecting software screening methods；Described refers to the frequency that works at 50 to code frequency point
Frequency point except point, this frequency point are specifically used to do to code.
The present invention carries out one-way communication by the subsidiary communications function of UHF chips itself, without using third-party double
To communication mode (such as 2.4G, 433M communication etc.), UHF chip own resources are fully excavated, without increasing additional communication
Chip and module save the whole BOM costs of product in this way, and many costs are reduced for the mass production of product.
It is above-mentioned only with embodiment come the technology contents that further illustrate the present invention, in order to which reader is easier to understand, but not
It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by the present invention's
Protection.Protection scope of the present invention is subject to claims.
Claims (9)
1. a kind of wireless microphone converter technique based on one-way communication, including UHF frequency-selectings software, transmitting terminal and receiving terminal,
It is characterized in that：The transmitting terminal includes miaow core, UHF transmitting chips, transmitting terminal microcontroller, the switch being connect with transmitting terminal microcontroller
Machine button and MIC status indicator lamps, the UHF transmitting chips are provided with UHF transmitting antennas, and the receiving terminal includes receiving terminal list
Piece machine, UHF receive chip, USB Audio chips, USB Type A male connectors, and the receiving terminal microcontroller is provided with UHF states
LED and system status led, the UHF receive chip and are provided with UHF reception antennas, and the UHF frequency-selectings software generates 50 mutually not
A respective in store same frequency for including 50 frequencies in the microcontroller of the frequency of interference, the transmitting terminal and receiving terminal
Table, this 50 frequencies pass through UHF frequency-selecting software operations.
2. the wireless microphone converter technique according to claim 1 based on one-way communication, it is characterised in that：The UHF
Transmitting chip is received chip and is used using KT0646M chips, the unidirectional subsidiary communications function of included 4 bytes, the UHF
KT0656M chips, included unidirectional secondary channel communication function realize unidirectional receive.
3. the wireless microphone converter technique according to claim 1 based on one-way communication, it is characterised in that：The transmitting
Holding microcontroller, there are one 16 unique ID, and when emitting the heartbeat packet of 4 bytes, before 2 bytes be transmitting terminal monolithic
16 unique ID of machine, the transmitting terminal are switched on every time, and tranmitting frequency is taken out at random from 50 frequencies in frequency meter
It takes, and ensures that this tranmitting frequency is different from last time booting tranmitting frequency.
4. the wireless microphone converter technique according to claim 1 based on one-way communication, it is characterised in that：The reception
End USB Type A male connectors are inserted into host and power on, power on receiving terminal and transmitting terminal in 6 seconds and carry out to code, and the receiving terminal initializes
UHF receives frequency point, is set as frequency indices 0 to receive frequency point, in real time monitoring UHF signal RSSI values.
5. the wireless microphone converter technique according to claim 4 based on one-way communication, it is characterised in that：The RSSI
Value be less than signal threshold values when, receiving terminal UHF states LED can extinguish, the RSSI value be continued above 2 seconds less than signal threshold values when,
Receiving terminal enters frequency sweep flow.
6. the wireless microphone converter technique according to claim 5 based on one-way communication, it is characterised in that：The frequency sweep
Flow includes that receiving terminal searches for 50 frequency points since frequency point index 0 in frequency meter, if detecting that RSSI is more than signal valve
Value, then normal searching to the frequency point are then turned on UHF auxiliary channels and receive transmitting terminal heartbeat packet, confirmation transmitting terminal ID whether with
The ID that this receiving terminal preserves matches, if it does, then this frequency sweep is completed.
7. the wireless microphone converter technique according to claim 6 based on one-way communication, it is characterised in that：The reception
End search is less than effective frequency point or after searching frequency point, the transmitting terminal ID and ID that receiving terminal preserves is mismatched, then receiving terminal meeting
Add 1 to continue search for frequency point index automatically；When the frequency point index is greater than or equal to 49, from the beginning frequency point is indexed clear 0 by receiving terminal
Start to search for.
8. the wireless microphone converter technique according to claim 4 based on one-way communication, it is characterised in that：The reception
End is to code step with transmitting terminal：First, user pins transmitting terminal MIC on ＆ off switches 3 seconds or more, transmitting terminal MIC status indicator lamps
It can fast blink；Then, while transmitting terminal MIC status indicator lamps flicker, receiving terminal is inserted into the USB interface of host computer；
Receiving terminal powers on, and the LED flickers of UHF states indicate that receiving terminal comes into pattern, and in 6 seconds, UHF states LED extinguishes, table
Show to code success.
9. the wireless microphone converter technique according to claim 8 based on one-way communication, it is characterised in that：The reception
UHF transmission powers are turned down when being carried out to code with transmitting terminal in end, the maximum distance of transmitting terminal and receiving terminal is within 1 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810459331.XA CN108683976A (en) | 2018-05-15 | 2018-05-15 | Wireless microphone converter technique based on one-way communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810459331.XA CN108683976A (en) | 2018-05-15 | 2018-05-15 | Wireless microphone converter technique based on one-way communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108683976A true CN108683976A (en) | 2018-10-19 |
Family
ID=63806035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810459331.XA Pending CN108683976A (en) | 2018-05-15 | 2018-05-15 | Wireless microphone converter technique based on one-way communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108683976A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381419A (en) * | 2019-07-17 | 2019-10-25 | 上海航盛实业有限公司 | A kind of wireless microphone system and its method for transmitting signals |
| CN111356089A (en) * | 2020-05-22 | 2020-06-30 | 深圳市汇顶科技股份有限公司 | Data communication method, system, electronic device, chip and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350630A (en) * | 2008-03-05 | 2009-01-21 | 中科院嘉兴中心微系统所分中心 | Short-wave communication unidirection frequency-sweeping communication method for wireless sensing network |
| CN104244147A (en) * | 2014-09-17 | 2014-12-24 | 深圳市好兄弟电子有限公司 | Intelligent canning method of wireless microphone receiver |
| CN105916080A (en) * | 2016-06-11 | 2016-08-31 | 深圳市创视微智能技术有限公司 | Frequency variable wireless microphone system and automatic frequency sweep method thereof |
| CN107783452A (en) * | 2016-08-30 | 2018-03-09 | 深圳市创视微智能技术有限公司 | Android intelligent radio K sings system and method |
| US20180091878A1 (en) * | 2016-09-23 | 2018-03-29 | Apple Inc. | Subwoofer with multi-lobe magnet |
-
2018
- 2018-05-15 CN CN201810459331.XA patent/CN108683976A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350630A (en) * | 2008-03-05 | 2009-01-21 | 中科院嘉兴中心微系统所分中心 | Short-wave communication unidirection frequency-sweeping communication method for wireless sensing network |
| CN104244147A (en) * | 2014-09-17 | 2014-12-24 | 深圳市好兄弟电子有限公司 | Intelligent canning method of wireless microphone receiver |
| CN105916080A (en) * | 2016-06-11 | 2016-08-31 | 深圳市创视微智能技术有限公司 | Frequency variable wireless microphone system and automatic frequency sweep method thereof |
| CN107783452A (en) * | 2016-08-30 | 2018-03-09 | 深圳市创视微智能技术有限公司 | Android intelligent radio K sings system and method |
| US20180091878A1 (en) * | 2016-09-23 | 2018-03-29 | Apple Inc. | Subwoofer with multi-lobe magnet |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381419A (en) * | 2019-07-17 | 2019-10-25 | 上海航盛实业有限公司 | A kind of wireless microphone system and its method for transmitting signals |
| CN111356089A (en) * | 2020-05-22 | 2020-06-30 | 深圳市汇顶科技股份有限公司 | Data communication method, system, electronic device, chip and storage medium |
| US10986683B1 (en) | 2020-05-22 | 2021-04-20 | Shenzhen GOODIX Technology Co., Ltd. | Data communication method and system, electronic device, chip and storage medium |
| US11528764B2 (en) | 2020-05-22 | 2022-12-13 | Shenzhen GOODIX Technology Co., Ltd. | Data communication method and system, electronic device, chip and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108282166B (en) | Antenna coexistence mutual interference processing method and device, storage medium and electronic equipment | |
| EP2098101B1 (en) | Method and system to select devices of a wireless network, particularly a network of wireless lighting devices | |
| KR20020061164A (en) | Antenna diversity communication apparatus | |
| CN105307291B (en) | The signal transmitting method of communication terminal and communication terminal | |
| CN105337631B (en) | A kind of aerial matching method, device, system and mobile terminal | |
| CN108683976A (en) | Wireless microphone converter technique based on one-way communication | |
| US20220338289A1 (en) | Device control method, apparatus, storage medium and electronic device | |
| US20020141374A1 (en) | Method for controlling antennas of a receiving device in a radio system | |
| CN209787155U (en) | Wireless microphone system and wireless transmitting device | |
| US8385831B2 (en) | Secure cognitive radio transmissions | |
| CN117544259B (en) | Medical telemetry monitoring communication method, system, electronic equipment and storage medium | |
| CN106911376A (en) | A kind of wireless energy drives transmission method and device | |
| US20110028107A1 (en) | Spectrum sensing network | |
| CN107359958B (en) | Frequency agility intelligence jammer | |
| CN115208473B (en) | Method and device for opening optical fiber distribution system, electronic equipment and storage medium | |
| CN209659523U (en) | A kind of while channel wireless radio multi audio transmission wireless microphone system | |
| CN105282684A (en) | Wireless communication device and wireless communication method | |
| KR20120115379A (en) | Method and device in user terminal for selecting access base station | |
| CN116366110A (en) | Antenna selection circuit, method, electronic device, and readable storage medium | |
| CN214481143U (en) | Dual-band-based microphone system and wireless microphone | |
| CN104427448A (en) | Wireless microphone connection method and apparatus, and wireless microphone | |
| CN108400802A (en) | A kind of bluetooth method of reseptance, system and electronic equipment | |
| CN111031496A (en) | Switching device and lamp device pairing method and system based on SIG MESH network | |
| CN106658663A (en) | Cell search optimization method of wireless communication system | |
| CN105743588B (en) | A kind of automation radio frequency test method of Sub 1GHz wireless products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181019 |
|
| WD01 | Invention patent application deemed withdrawn after publication |