CN107872233A - A kind of modulating emission circuit and FM transmission method - Google Patents
A kind of modulating emission circuit and FM transmission method Download PDFInfo
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- CN107872233A CN107872233A CN201611142416.2A CN201611142416A CN107872233A CN 107872233 A CN107872233 A CN 107872233A CN 201611142416 A CN201611142416 A CN 201611142416A CN 107872233 A CN107872233 A CN 107872233A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005236 sound signal Effects 0.000 claims abstract description 28
- 230000003321 amplification Effects 0.000 claims abstract description 25
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 9
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of modulating emission circuit and FM transmission method, the circuit includes：For launching the FM transmission antenna of FM signal；Signal amplification circuit, it is electrically connected at FM transmission antenna；FM transmission chip, is electrically connected at signal amplification circuit；Launch microprocessor, be electrically connected at FM transmission chip；For adjusting the tranmitting frequency code switch of launching frequency, transmitting microprocessor is electrically connected at；For the audio signal socket of grafting COBBAIF, FM transmission chip is electrically connected at；For the audio Bluetooth socket of grafting bluetooth module, FM transmission chip is electrically connected at.The beneficial effects of the practice of the present invention is, by setting different frequent points to be not only increased the antijamming capability of telecontrol engineering with FM transmission audio signal, also improved the reliability that smart home communicates；Modulating emission circuit is applied in smart home, improves the adventure in daily life of people, enriches Intelligent housing function.
Description
Technical field
The present invention relates to frequency-modulated communication techniques field, more particularly to a kind of modulating emission circuit and FM transmission method.
Background technology
With the popularization of music light source technology, increasing music light source gets their way into people's lives.Pass through at present
The technology of Intelligent household remote control music light source is more ripe, but this telecontrol engineering antijamming capability is weak, networking inconvenience, reliably
Property is general.And in the prior art, it is difficult to realize the networking function between multiple music light sources, more send sound not over frequency modulation
The technical scheme of frequency signal.
The content of the invention
It is an object of the invention to provide a kind of modulating emission circuit and FM transmission method, solves intelligence in the prior art
Audio signal can not be sent by frequency modulation in household and telecontrol engineering antijamming capability is weak, networking inconvenience, reliability in general is asked
Topic.
Technical scheme is realized as follows：
On the one hand, the present invention provides a kind of modulating emission circuit, including：
For launching the FM transmission antenna of FM signal；
Signal amplification circuit, it is electrically connected at the FM transmission antenna；
FM transmission chip, it is electrically connected at the signal amplification circuit；
Launch microprocessor, be electrically connected at the FM transmission chip；
For adjusting the tranmitting frequency code switch of launching frequency, the transmitting microprocessor is electrically connected at；
For the audio signal socket of grafting COBBAIF, the FM transmission chip is electrically connected at；
For the audio Bluetooth socket of grafting bluetooth module, the FM transmission chip is electrically connected at.
In modulating emission circuit of the present invention, in addition to：
Electric supply installation, it is electrically connected at the signal amplification circuit, the FM transmission chip, the audio Bluetooth socket
And the transmitting microprocessor.
In modulating emission circuit of the present invention, the electric supply installation includes：
For providing the power supply circuit of first voltage, the signal amplification circuit is electrically connected at；
For accessing the first voltage to export the mu balanced circuit of second voltage, its input is connected to the power supply electricity
Road, its output end are electrically connected at the FM transmission chip, the audio Bluetooth socket and the transmitting microprocessor.
In modulating emission circuit of the present invention, the tranmitting frequency code switch includes three sons parallel with one another
Switch, to switch the launching frequency of the FM transmission antenna.
In modulating emission circuit of the present invention, in addition to：
For showing the transmitting LED of FM signal emission state, the transmitting microprocessor is electrically connected at.
In modulating emission circuit of the present invention, the signal amplification circuit includes：
First triode, its ground level are electrically connected at the FM transmission chip；
Second triode, its ground level are electrically connected at the colelctor electrode of first triode；
Filter circuit, its one end are electrically connected at the colelctor electrode of second triode, and the other end is electrically connected at described
FM transmission antenna.
In modulating emission circuit of the present invention, in addition to：
Socket drive circuit, its one end are electrically connected at the FM transmission chip, and the other end is electrically connected at the sound
Frequency signal plug and the audio Bluetooth socket.
On the other hand, there is provided a kind of FM transmission method, there is provided modulating emission circuit as described above, including step：
Connect by the audio Bluetooth socket grafting bluetooth module or by the audio signal socket grafting COBBAIF
Enter audio signal；
The audio signal is converted to by FM signal by the FM transmission chip；
The transmitting of the FM transmission antenna is controlled by the transmitting microprocessor and the tranmitting frequency code switch
Frequency；
The FM signal is amplified by the signal amplification circuit；
Amplified FM signal is launched according to the launching frequency by the FM transmission antenna.
It is described to be compiled by the transmitting microprocessor and the tranmitting frequency in FM transmission method of the present invention
Code switch controls the step of launching frequency of the FM transmission antenna to include following sub-step：
The state of three sub switchs of the tranmitting frequency code switch is obtained by the transmitting microprocessor；
State according to three sub switchs determines the launching frequency.
In FM transmission method of the present invention, in addition to step：
Powered by first voltage for the signal amplification circuit；
It is that the FM transmission chip, the audio Bluetooth socket and the transmitting microprocessor supply by second voltage
Electricity.
Therefore, the invention has the advantages that by setting different frequent points to be not only increased with FM transmission audio signal
The antijamming capability of telecontrol engineering, also improve the reliability of smart home communication；Modulating emission circuit is applied in intelligent family
Between two parties, the adventure in daily life of people is improved, enriches Intelligent housing function.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is a kind of module frame chart of modulating emission circuit provided by the invention；
Fig. 2 is that the structure of FM transmission antenna, signal amplification circuit and electric supply installation that one embodiment of the invention provides is shown
It is intended to；
Fig. 3 be one embodiment of the invention provide FM transmission chip, transmitting microprocessor, tranmitting frequency code switch,
The structural representation of audio signal socket and audio Bluetooth socket.
Embodiment
In order to which technical characteristic, purpose and the effect of the present invention is more clearly understood, it is detailed to compare accompanying drawing below
Illustrate the embodiment of the present invention.It should be appreciated that following explanation is only being specifically described for the embodiment of the present invention, should not be with this
Limit the scope of the invention.
The present invention provides a kind of modulating emission circuit 100 and FM transmission method, it is intended that by setting different frequencies
Point not only increases the antijamming capability of telecontrol engineering with FM transmission audio signal, and also improve smart home communication can
By property；Modulating emission circuit is applied in smart home, improves the adventure in daily life of people, enriches Intelligent housing work(
Energy.
Referring to Fig. 1, Fig. 1 is a kind of module frame chart of modulating emission circuit 100 provided by the invention, the modulating emission circuit
100, which include FM transmission antenna 1, signal amplification circuit 2, FM transmission chip 3, transmitting microprocessor 4, tranmitting frequency coding, opens
Close 5, audio signal socket 6 and audio Bluetooth socket 7.
FM transmission antenna 1 is used to launch FM signal；Its tuning range launched is 88MHz-110MHz.
Signal amplification circuit 2 is electrically connected at the FM transmission antenna 1；Fig. 2 is participated in, Fig. 2 is one embodiment of the invention
The structural representation of the FM transmission antenna 1 of offer, signal amplification circuit 2 and electric supply installation 8, signal amplification circuit 2 include the
One triode 21, the second triode 22 and filter circuit 23, in addition to inductance L10, inductance L11, electric capacity C26, electric capacity C4, electric capacity
C5, inductance L6, electric capacity C3, resistance R25, resistance R1, electric capacity C38, inductance L14 and inductance L1.
One end of filter circuit 23 is electrically connected at the colelctor electrode of second triode 22, and the other end is electrically connected at institute
State FM transmission antenna 1.The filter circuit 23 includes electric capacity C36, electric capacity C37, electric capacity C33, electric capacity C35, electric capacity C27, inductance
L12 and inductance L13, electric capacity C37 one end are connected to modulating emission circuit 100, and the electric capacity C37 other end is connected to electric capacity C36
One end and inductance L13 one end, the inductance L13 other end is connected to inductance L12 one end, and electric capacity C35 is connected to inductance L12
Between inductance L13, the inductance L12 other end is connected to C27 one end, electric capacity C33 be connected to inductance L12 in electric capacity C12 it
Between.
Electric capacity C27 is connected to one end of the colelctor electrode of the second triode 22, inductance L11 one end and electric capacity C26, inductance
The L11 other end be connected to inductance L10 one end, the electric capacity C26 other end, electric capacity C4 one end, electric capacity C5 one end and
Inductance L6 one end, the ground level of the second triode 22 are connected to resistance R25 one end and electric capacity C3 one end, and electric capacity C3's is another
End is connected to the inductance L6 other end and the colelctor electrode of the first triode 21, the ground level of the first triode 21 are connected to electric capacity C1's
One end and resistance R1 one end, the electric capacity C1 other end are connected to inductance L1 one end and interface 201, and the resistance R1 other end connects
Electric capacity C38 one end and inductance L14 one end are connected to, the inductance L14 other end is connected to interface 202, and interface 202 is used to access
+ 3.6V voltages.
FM transmission chip 3 is electrically connected at the signal amplification circuit 2；Referring to Fig. 3, Fig. 3 is one embodiment of the invention
FM transmission chip 3, transmitting microprocessor 4, tranmitting frequency code switch 5, audio signal socket 6 and the audio bluetooth of offer are inserted
The structural representation of seat 7.FM transmission chip 3 is U4, and U4 port RFO is connected to interface 201, its port VIO and port VDD
Be connected to one end of electric capacity C6 one end, electric capacity C7 one end and resistance R3, the resistance R3 other end be connected to interface 202 with
Access+3.6V voltages.
Transmitting microprocessor 4 is electrically connected at the FM transmission chip 3；Transmitting microprocessor 4 is MCU1, MCU1 end
Port SDA and port SCL, MCU1 that mouth 5 and port 6 are respectively connecting to U4 port 1 are connected to electric capacity C2 one end, electric capacity
C14 one end and resistance R4 one end, the resistance R4 other end are connected to interface 202 with access+3.6V voltages.
Tranmitting frequency code switch 5 is used to adjust launching frequency, is electrically connected at the transmitting microprocessor 4；Transmitting frequency
Rate code switch 5 includes three sub switchs parallel with one another, to switch the launching frequency of the FM transmission antenna 1.These three
Sub switch is respectively sub switch A, sub switch B and sub switch C, and sub switch A, sub switch B and sub switch C one end are grounded, son
The switch A other end is connected to MCU1 port 3 by resistance R2, and the sub switch B other end is connected to MCU2 by resistance R19
Port 4, the sub switch C other end is connected to MCU2 port 7 by resistance R22.
Audio signal socket 6 is used for grafting COBBAIF, is electrically connected at the FM transmission chip 3；Preferably, the tune
The transmit-receive radio road that takes place frequently 100 also includes socket drive circuit 9, and its one end is electrically connected at the FM transmission chip 3, and the other end is electrical
The audio signal socket 6 and the audio Bluetooth socket 7 are connected to, i.e. socket drive circuit 9 is connected to audio signal and connect
Between mouth and FM transmission chip 3.Referring to Fig. 3, socket drive circuit 9 includes electric capacity C20, electric capacity C19, resistance R9, resistance
R11, inductance L8, inductance L9, resistance R8, resistance R10, electric capacity C17, electric capacity C18, resistance R6 and resistance R7.Audio signal socket 6
For AUX-IN sockets, i.e. audio input interface, for receiving the effect audio communication gone out handled by external effect device, or serve as extra
Input sound channel.Audio signal socket 6 includes the end 62 of first end 61 and second, and first end 61 passes sequentially through electric capacity C20, resistance
R11, inductance L8, electric capacity C17 and resistance R6 are connected to U4 port ARI, and resistance R10 is connected between inductance L8 and electric capacity C17；
Second end 62 passes sequentially through the port ALI that electric capacity C19, resistance R9, inductance L9, electric capacity C18 and resistance R7 are connected to U4, resistance R8
It is connected between inductance L9 and electric capacity C18.
Audio Bluetooth socket 7 is used for grafting bluetooth module, is electrically connected at the FM transmission chip 3.Audio bluetooth is inserted
Seat 7 is BLE2, including port AL-I, port AR-I, port GND and the power port for accessing+3.6V voltages, port AL-I
The first end 61 that electric capacity C39 and resistance R13 is connected to audio signal socket 6 is passed sequentially through, port AR-I passes sequentially through electric capacity C40
And resistance R24 is connected to the second end 62 of audio signal socket 6.Resistance R23 and resistance R26 one end are respectively connecting to audio letter
The end 62 of first end 61 and second of number socket 6, resistance R23 and resistance R26 other end ground connection.
For example, the audio input of modulating emission circuit 100 has 2 tunnels：Wired input (is inputted) by audio signal socket 6
Be wirelessly input to and (inputted by audio Bluetooth socket 7), wired input by the AUX interfaces on transmitter, can by television set,
The audio signal of CD-ROM device or other equipment accesses；It is wirelessly input to by bluetooth connection mode, the mobile phone of Bluetooth pairing can be broadcast
The audio signal put is launched, for multiple receiving unit playbacks, so as to realize the interaction of light and music.It may be mounted at room
The interior place nearer from audio, by television set, by setting modulating emission circuit 100, the sound of television set is passed through into the tune
The transmit-receive radio road that takes place frequently 100 is sent to multiple receiving units, and multiple receiving units can sounding simultaneously.
Preferably, the modulating emission circuit 100 also includes electric supply installation 8, and electric supply installation 8 is electrically connected at the signal and put
Big circuit 2, the FM transmission chip 3, the audio Bluetooth socket 7 and the transmitting microprocessor 4.Referring to Fig. 2, the confession
Electric installation 8 includes power supply circuit 81 and mu balanced circuit 82.
Power supply circuit 81 is used to provide first voltage, is electrically connected at the signal amplification circuit 2.
Mu balanced circuit 82 is used to access the first voltage to export second voltage, and its input is connected to the power supply electricity
Road 81, its output end are electrically connected at the FM transmission chip 3, the audio Bluetooth socket 7 and the transmitting microprocessor
4.Second voltage is preferably+3.6V.
Preferably.Referring to Fig. 3, the modulating emission circuit 100 also includes being used for the hair for showing FM signal emission state
LED TX-LED is penetrated, is electrically connected at the transmitting microprocessor 4.Transmitting LED TX-LED positive pole is connected by resistance R5
To MCU1 port 2.
Further it is provided that a kind of FM transmission method, using modulating emission circuit 100 as described above, including step S1-
S5：
S1, connect by the grafting bluetooth module of audio Bluetooth socket 7 or by the grafting audio of audio signal socket 6
Mouth incoming audio signal；
S2, the audio signal is converted to by FM signal by the FM transmission chip 3；
S3, by it is described transmitting microprocessor 4 and the tranmitting frequency code switch 5 control the FM transmission antenna 1
Launching frequency；Step S3 includes sub-step S31-S32：
S31, pass through the state launched microprocessor 4 and obtain three sub switchs of the tranmitting frequency code switch 5；
Referring to Fig. 3, three sub switchs are respectively sub switch A, sub switch B and sub switch C, produce signal 1 during switch closure, are produced during disconnection
Raw signal 0, therefore three sub switchs can realize eight kinds of different signals, such as following table by switch combination：
| f1 | f2 | f3 | f4 | f5 | f6 | f7 | f8 | |
| A | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |
| B | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 |
| C | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 |
By the various combination of three sub switchs, 8 kinds of different frequencies are can correspond to.
S32, the state according to three sub switchs determine the launching frequency.For example, f1 is 88MHz, as sub switch A
Disconnect, sub switch B disconnections, when sub switch C is closed, the working frequency points of FM transmission antenna 1 are f1 88MHz, by that analogy.
S4, by the signal amplification circuit 2 to the FM signal amplify；
S5, amplified FM signal launched according to the launching frequency by the FM transmission antenna 1.
Preferably, the FM transmission method also includes step S6-S7：
S6, by first voltage be the signal amplification circuit 2 power；
S7, by second voltage it is the FM transmission chip 3, the audio Bluetooth socket 7 and the transmitting microprocessor
Device 4 is powered.
There is provided herein the various operations of embodiment.In one embodiment, described one or operation may be constructed one
The computer-readable instruction stored on individual or computer-readable medium, it will be so that computing device be held when being performed by electronic equipment
The row operation.Describing the orders of some or all of operations, to should not be construed as to imply that these operations necessarily order dependent
's.It will be appreciated by those skilled in the art that the alternative sequence of the benefit with this specification.Furthermore, it is to be understood that it is not institute
There is operation to exist in each embodiment provided in this article.
Moreover, word " preferable " used herein means serving as example, example or illustration.Feng Wen is described as " preferably
" any aspect or design be not necessarily to be construed as than other aspect or design it is more favourable.On the contrary, the use purport of word " preferable "
Concept is being proposed in a concrete fashion.Term "or" as used in this application is intended to mean the "or" included and non-excluded
"or".I.e., unless otherwise or clear from the context, " X means that nature includes any one of arrangement using A or B ".
That is, if X uses A；X uses B；Or X uses A and B both, then " X is met using A or B " in foregoing any example.
Moreover, although having shown and described the disclosure relative to one or implementation, but people in the art
Member is based on the reading to the specification and drawings and understands it will be appreciated that equivalent variations and modification.The disclosure includes all such
Modifications and variations, and be limited only by the scope of the following claims.In particular, to by said modules (such as element, resource
Deng) various functions that perform, the term for describing such component is intended to correspond to the specified function (example for performing the component
As it is functionally of equal value) random component (unless otherwise instructed), in structure with perform shown in this article
The open structure of function in disclosed exemplary implementations is not equivalent.In addition, the although special characteristic of the disclosure phase
Be disclosed for the only one in some implementations, but this feature can with such as can be for given or application-specific
It is it is expected one or other combinations of features with other favourable implementations.Moreover, with regard to term " comprising ", " having ", " contain
Have " or its deformation be used in embodiment or claim for, such term be intended to with term " include " phase
As mode include.
Each functional unit in the embodiment of the present invention can be integrated in a processing module or unit list
Solely be physically present, can also two or more units be integrated in a module.Above-mentioned integrated module can both use
The form of hardware is realized, can also be realized in the form of software function module.If the integrated module is with software function
The form of module is realized and is used as independent production marketing or is situated between in use, a computer-readable storage can also be stored in
In matter.Storage medium mentioned above can be read-only storage, disk or CD etc..Above-mentioned each device or system, can be with
Perform the method in correlation method embodiment.
In summary, although the present invention is disclosed above with preferred embodiment, above preferred embodiment simultaneously is not used to limit
The system present invention, one of ordinary skill in the art, without departing from the spirit and scope of the present invention, it can make various changes and profit
Decorations, therefore protection scope of the present invention is defined by the scope that claim defines.
Claims (10)
- A kind of 1. modulating emission circuit, it is characterised in that including：For launching the FM transmission antenna of FM signal；Signal amplification circuit, it is electrically connected at the FM transmission antenna；FM transmission chip, it is electrically connected at the signal amplification circuit；Launch microprocessor, be electrically connected at the FM transmission chip；For adjusting the tranmitting frequency code switch of launching frequency, the transmitting microprocessor is electrically connected at；For the audio signal socket of grafting COBBAIF, the FM transmission chip is electrically connected at；For the audio Bluetooth socket of grafting bluetooth module, the FM transmission chip is electrically connected at.
- 2. modulating emission circuit according to claim 1, it is characterised in that also include：Electric supply installation, it is electrically connected at the signal amplification circuit, the FM transmission chip, the audio Bluetooth socket and institute State transmitting microprocessor.
- 3. modulating emission circuit according to claim 2, it is characterised in that the electric supply installation includes：For providing the power supply circuit of first voltage, the signal amplification circuit is electrically connected at；For accessing the first voltage to export the mu balanced circuit of second voltage, its input is connected to the power supply circuit, Its output end is electrically connected at the FM transmission chip, the audio Bluetooth socket and the transmitting microprocessor.
- 4. modulating emission circuit according to claim 1, it is characterised in that the tranmitting frequency code switch includes three Sub switch parallel with one another, to switch the launching frequency of the FM transmission antenna.
- 5. modulating emission circuit according to claim 1, it is characterised in that also include：For showing the transmitting LED of FM signal emission state, the transmitting microprocessor is electrically connected at.
- 6. modulating emission circuit according to claim 1, it is characterised in that the signal amplification circuit includes：First triode, its ground level are electrically connected at the FM transmission chip；Second triode, its ground level are electrically connected at the colelctor electrode of first triode；Filter circuit, its one end are electrically connected at the colelctor electrode of second triode, and the other end is electrically connected at the frequency modulation Transmitting antenna.
- 7. modulating emission circuit according to claim 1, it is characterised in that also include：Socket drive circuit, its one end are electrically connected at the FM transmission chip, and the other end is electrically connected at the audio letter Number socket and the audio Bluetooth socket.
- A kind of 8. FM transmission method, there is provided the modulating emission circuit as described in claim any one of 1-7, it is characterised in that Including step：Sound is accessed by the audio Bluetooth socket grafting bluetooth module or by the audio signal socket grafting COBBAIF Frequency signal；The audio signal is converted to by FM signal by the FM transmission chip；The launching frequency of the FM transmission antenna is controlled by the transmitting microprocessor and the tranmitting frequency code switch；The FM signal is amplified by the signal amplification circuit；Amplified FM signal is launched according to the launching frequency by the FM transmission antenna.
- 9. FM transmission method according to claim 8, it is characterised in that described to pass through the transmitting microprocessor and institute Stating the step of tranmitting frequency code switch controls the launching frequency of the FM transmission antenna includes following sub-step：The state of three sub switchs of the tranmitting frequency code switch is obtained by the transmitting microprocessor；State according to three sub switchs determines the launching frequency.
- 10. FM transmission method according to claim 8, it is characterised in that also including step：Powered by first voltage for the signal amplification circuit；It is the FM transmission chip, the audio Bluetooth socket and the transmitting microprocessor power supply by second voltage.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611142416.2A CN107872233A (en) | 2016-12-12 | 2016-12-12 | A kind of modulating emission circuit and FM transmission method |
| PCT/CN2017/087149 WO2018107673A1 (en) | 2016-12-12 | 2017-06-05 | Frequency-modulated transmitting circuit and frequency-modulated transmitting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611142416.2A CN107872233A (en) | 2016-12-12 | 2016-12-12 | A kind of modulating emission circuit and FM transmission method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107872233A true CN107872233A (en) | 2018-04-03 |
Family
ID=61761968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611142416.2A Pending CN107872233A (en) | 2016-12-12 | 2016-12-12 | A kind of modulating emission circuit and FM transmission method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107872233A (en) |
| WO (1) | WO2018107673A1 (en) |
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| CN114554666A (en) * | 2022-03-21 | 2022-05-27 | 厦门普为光电科技有限公司 | Networking garage lighting device and method thereof |
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| CN110097867A (en) * | 2019-04-03 | 2019-08-06 | 陕西艺术职业学院 | Based on the sliceable double bonding electron qin attachment device of Bluetooth transmission |
| CN110784238A (en) * | 2019-09-26 | 2020-02-11 | 常熟市欧伏罱电子有限公司 | Circuit structure of earplug interphone |
| CN117052380B (en) * | 2023-10-10 | 2024-01-02 | 四川宏大安全技术服务有限公司 | Wireless pressure measurement device and method |
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2017
- 2017-06-05 WO PCT/CN2017/087149 patent/WO2018107673A1/en active Application Filing
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114554666A (en) * | 2022-03-21 | 2022-05-27 | 厦门普为光电科技有限公司 | Networking garage lighting device and method thereof |
| CN114554666B (en) * | 2022-03-21 | 2023-11-10 | 厦门普为光电科技有限公司 | Networking garage lighting device and method thereof |
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| Publication number | Publication date |
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| WO2018107673A1 (en) | 2018-06-21 |
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