CN105162540B - Wireless digital broadcasting station - Google Patents
Wireless digital broadcasting station Download PDFInfo
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- CN105162540B CN105162540B CN201510456158.4A CN201510456158A CN105162540B CN 105162540 B CN105162540 B CN 105162540B CN 201510456158 A CN201510456158 A CN 201510456158A CN 105162540 B CN105162540 B CN 105162540B
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Abstract
The present invention relates to a kind of wireless digital broadcasting stations, the wireless digital broadcasting station is in reception state or emission state, respectively with host computer, antenna communication, it include: multi-mode governor circuit, RF receiving circuit, radio frequency transmitter circuitry, wherein, RF receiving circuit and radio frequency transmitter circuitry can also only select any one.In the wireless digital broadcasting station, multi-mode governor circuit is according to modulating mode signal or pattern synchronization signal, corresponding mode is switched to be modulated or demodulate, so that wireless digital broadcasting station can work in different modes, and then user can be made in the case where being changed without radio station, realization is communicated with each other with different types of wireless digital broadcasting station, is not only convenient for user's use, and save the cost.
Description
Technical field
The present invention relates to wireless communication technology fields, more particularly to a kind of wireless digital broadcasting station.
Background technique
Wireless digital broadcasting station refers to the high-performance expert data by Digital Signal Processing and radio technology realization
Transmission radio station, industrial wireless data radio station application are very extensive.And traditional wireless digital broadcasting station have one mode into
Row modulation or demodulation, therefore can only be with the station telecommunication of specified type, application range is relatively narrow.When needs and different manufacturers development
When wireless digital broadcasting station communicates, user needs to replace the wireless digital broadcasting station with different mode respectively, therefore in such case
Under, using traditional wireless digital broadcasting station, not only communications cost is high, but also user's operation is inconvenient.
Summary of the invention
Based on this, it is necessary to which, in view of the above-mentioned problems, providing a kind of wireless digital broadcasting station, which can be switched to
Different modes work.
A kind of wireless digital broadcasting station, be in reception state or emission state, respectively with host computer, antenna two-way communication, institute
It states wireless digital broadcasting station and can switch to different modes and work, and the wireless digital broadcasting station includes multi-mode master control electricity
Road, RF receiving circuit, radio frequency transmitter circuitry；
The multi-mode governor circuit for being bi-directionally connected with the host computer, and the multi-mode governor circuit respectively with
The RF receiving circuit, radio frequency transmitter circuitry connection；The RF receiving circuit, radio frequency transmitter circuitry be respectively used to it is described
Antenna connection；
The RF receiving circuit, for being adjusted to the received radiofrequency signal comprising pattern synchronization signal of the antenna
Frequency is filtered, and signal is sent to the multi-mode governor circuit by treated, wherein the pattern synchronization signal is used for
Indicate the modulating mode that the radiofrequency signal uses；
The multi-mode governor circuit, treated for receiving RF receiving circuit signal, and according to the mould
Formula synchronization signal switches to corresponding mode, then solves to the RF receiving circuit treated signal by corresponding mode
It adjusts, the signal after demodulation is finally sent to the host computer；
The multi-mode governor circuit is also used to receive signal to be modulated and need to adopt to the signal to be modulated for indicating
The modulating mode signal of modulating mode, and corresponding mode is switched to according to the modulating mode signal, then to it is described to
Modulated signal is modulated by corresponding mode, and modulated signal is finally sent to the radio frequency transmitter circuitry；
The radio frequency transmitter circuitry, for carrying out frequency modulation enhanced processing to the modulated signal, and by treated
Signal is sent to the antenna.
The wireless digital broadcasting station is worked using semiduplex mode in one of the embodiments,.
The RF receiving circuit includes that sequentially connected first filter, low noise are put in one of the embodiments,
Big device, frequency mixer, second filter, digital analog converter, wherein the first filter is used to connect with the antenna, the number
Mode converter is connect with the multi-mode governor circuit.
The radio frequency transmitter circuitry includes sequentially connected frequency synthesizer and power amplification in one of the embodiments,
Device, wherein the frequency synthesizer and the multi-mode governor circuit with connect, the power amplifier is used for and the antenna
With connection.
The frequency synthesizer is also connect with the frequency mixer in one of the embodiments, and the frequency synthesizer
Local oscillation signal is generated, and local oscillation signal is transmitted into the frequency mixer.
A kind of wireless digital broadcasting station, be in reception state, respectively with host computer, antenna communication, the wireless digital broadcasting station
Different modes can be switched to work, and the wireless digital broadcasting station includes multi-mode governor circuit, RF receiving circuit；
The multi-mode governor circuit with the host computer for connecting, and the multi-mode governor circuit and the radio frequency
Receive circuit connection；The RF receiving circuit with the antenna for connecting；
The RF receiving circuit, for being adjusted to the received radiofrequency signal comprising pattern synchronization signal of the antenna
Frequency is filtered, and signal is sent to the multi-mode governor circuit by treated, and the pattern synchronization signal is for indicating
The modulating mode that the radiofrequency signal uses；
The multi-mode governor circuit, treated for receiving RF receiving circuit signal, and according to the mould
Formula synchronization signal switches to corresponding mode, then solves to the RF receiving circuit treated signal by corresponding mode
It adjusts, the signal after demodulation is finally sent to the host computer.
The RF receiving circuit includes that sequentially connected first filter, low noise are put in one of the embodiments,
Big device, frequency mixer, second filter, digital analog converter, and the RF receiving circuit further includes for inputting this to frequency mixer
The local oscillation signal generation circuit of vibration signal, wherein the first filter is used to connect with the antenna, the digital analog converter
It is connect with the multi-mode governor circuit.
A kind of wireless digital broadcasting station, be in emission state, respectively with host computer, antenna communication, the wireless digital broadcasting station
Different modes can be switched to work, and the wireless digital broadcasting station includes multi-mode governor circuit, radio frequency transmitter circuitry；
The multi-mode governor circuit with the host computer for connecting, and the multi-mode governor circuit and the radio frequency
Transmit circuit connection；The radio frequency transmitter circuitry with the antenna for connecting；
The multi-mode governor circuit need to use the signal to be modulated for receiving signal to be modulated and for indicating
Modulating mode modulating mode signal, and corresponding mode is switched to according to the modulating mode signal, then to described wait adjust
Signal processed is modulated by corresponding mode, and modulated signal is finally sent to the radio frequency transmitter circuitry；
The radio frequency transmitter circuitry, for carrying out frequency modulation enhanced processing to the modulated signal, and by treated
Signal is sent to the antenna.
The radio frequency transmitter circuitry includes sequentially connected frequency synthesizer and power amplification in one of the embodiments,
Device, wherein the multi-mode governor circuit is connect with the frequency synthesizer, and the power amplifier is used to connect with the antenna
It connects.
The wireless digital broadcasting station work is in GMSK, MSK, 4FSK or DQPSK mode in one of the embodiments,.
Above-mentioned wireless digital broadcasting station has the beneficial effect that the multi-mode governor circuit in the wireless digital broadcasting station, root
According to modulating mode signal or pattern synchronization signal, switches to different modes and be modulated or demodulate, so that this is without line number
The platform that conducts electricity can work in different modes.Therefore, which can make user the case where being changed without radio station
Under, it is communicated with each other with different types of wireless digital broadcasting station, is not only convenient for user's use, and save the cost.
Detailed description of the invention
Fig. 1 is the wireless digital broadcasting station internal structure of first embodiment and the circuit diagram that connect with host computer, antenna；
Fig. 2 is the work flow diagram of multi-mode governor circuit demodulated signal in the wireless digital broadcasting station of embodiment illustrated in fig. 1；
Fig. 3 is the work flow diagram of multi-mode governor circuit modulated signal in the wireless digital broadcasting station of embodiment illustrated in fig. 1；
Fig. 4 is the wireless digital broadcasting station internal structure of second embodiment and the circuit diagram that connect with host computer, antenna；
Fig. 5 is the wireless digital broadcasting station internal structure of 3rd embodiment and the circuit diagram that connect with host computer, antenna.
Specific embodiment
Fig. 1 is 100 internal structure of wireless digital broadcasting station of first embodiment and the electricity that connect with host computer 200, antenna 300
Lu Tu, as shown in Figure 1, wireless digital broadcasting station 100 includes multi-mode governor circuit 110, RF receiving circuit 120, radio-frequency transmissions
Circuit 130.Wherein, radio frequency transmitter circuitry 130 includes frequency synthesizer 131, power amplifier 132.RF receiving circuit 120 wraps
Include first filter 121, low-noise amplifier 122, frequency mixer 123, second filter 124, digital analog converter 125.
Wherein, host computer 200 is bi-directionally connected with multi-mode governor circuit 110, another input of multi-mode governor circuit 110
End is connect with the output end of digital analog converter 125, another output end and the frequency synthesizer 131 of multi-mode governor circuit 110
Input terminal connection.
The output end of frequency synthesizer 131 is connect with the input terminal of frequency mixer 123, another output of frequency synthesizer 131
End is connect with the input terminal of power amplifier 132, and the output end of power amplifier 132 is connect with antenna 300.
Antenna 300 is connect with the input terminal of first filter 121, the output end and low noise amplification of first filter 121
The input terminal of device 122 connects, and the output end of low-noise amplifier 122 is connect with another input terminal of frequency mixer 123, frequency mixer
123 output end is connect with the input terminal of second filter 124, output end and the digital analog converter 125 of second filter 124
Input terminal connection.
In the present embodiment, wireless digital broadcasting station 100 can be in reception state or emission state, and in a manner of semiduplex
Work.Wherein, frequency synthesizer 131 generates local oscillation signal, and the local oscillation signal is sent in frequency mixer 123.
When wireless digital broadcasting station 100 is in reception state, 300 wireless receiving radiofrequency signal of antenna, and received radio frequency
It include pattern synchronization signal in signal, which is used to indicate the modulating mode that received radiofrequency signal uses.It
Radiofrequency signal is sent to first filter 121 by line 300.First filter 121 is filtered above-mentioned radiofrequency signal, and will filter
Signal after wave is sent to low-noise amplifier 122.Low-noise amplifier 122 amplifies above-mentioned filtered signal, and
Amplified signal is sent in frequency mixer 123.Above-mentioned amplified signal is mixed to by frequency mixer 123 using local oscillation signal
The signal of lower frequency, and the signal after mixing is sent in second filter 124.Second filter 124 is to above-mentioned mixing
Signal afterwards filters again, and filtered signal will be sent in digital analog converter 125 again.Digital analog converter 125 is to upper
It states filtered signal again to be sampled, to be converted to corresponding digital signal, and the digital signal is sent to multimode
In formula governor circuit 110, wherein above-mentioned digital signal is the signal after 120 final process of RF receiving circuit.
The workflow of multi-mode governor circuit 110 is as shown in Figure 2:
Step S101, multi-mode governor circuit 110 receive above-mentioned RF receiving circuit 120 treated signal；
Step S102, multi-mode governor circuit 110 is according to the mode in above-mentioned RF receiving circuit 120 treated signal
Synchronization signal switches to mode corresponding with the modulating mode that pattern synchronization signal indicates；
Step S103, after multi-mode governor circuit 110 is handled above-mentioned RF receiving circuit 120 according to the mode after switching
Signal demodulated；
Specifically, if indicating in pattern synchronization signal, received radiofrequency signal is modulated in the way of GMSK, multi-mode
Governor circuit 110 using with GMSK to the opposite way of signal processing come demodulated signal；
Signal after demodulation is sent in host computer 200 by step S104, multi-mode governor circuit 110.
When wireless digital broadcasting station 100 is as emission state, host computer 200 is transmitted to multi-mode governor circuit 110 wait adjust
Signal and modulating mode signal processed, wherein modulating mode signal is used to indicate the modulating mode that need to treat modulated signal use.
At this moment the workflow of multi-mode governor circuit 110 is as shown in Figure 3:
Step S201, multi-mode governor circuit 110 receive signal and modulating mode signal to be modulated；
Step S202, multi-mode governor circuit 110 switch to and the modulating mode signal according to above-mentioned modulating mode signal
The corresponding mode of the modulating mode indicated；
Step S203, multi-mode governor circuit 110 are treated modulated signal according to the mode after switching and are modulated；
Specifically, if indicating in modulating mode signal need to be modulated with the mode of GMSK, multi-mode governor circuit 110
Modulated signal is treated in the way of GMSK to be modulated；
Modulated signal is sent to the frequency in radio frequency transmitter circuitry 130 by step S204, multi-mode governor circuit 110
In synthesizer 131.
Frequency synthesizer 131 carries out frequency modulation to above-mentioned modulated signal, generates corresponding radiofrequency signal, and by the radio frequency
Signal is sent in power amplifier 132.Power amplifier 132 amplifies above-mentioned radiofrequency signal, and by amplified letter
Number it is sent to antenna 300.Antenna 300 finally launches amplified signal.
Fig. 4 is 100 internal structure of wireless digital broadcasting station of second embodiment and the electricity that connect with host computer 200, antenna 300
Road.As shown in figure 4, wireless digital broadcasting station 100 includes multi-mode governor circuit 110 and radio frequency transmitter circuitry 130.Wherein, radio frequency
Transmit circuit 130 includes frequency synthesizer 131, power amplifier 132.
Wherein, the output end of host computer 200 is connect with the input terminal of multi-mode governor circuit 110, multi-mode governor circuit
110 output end is connect with the input terminal of frequency synthesizer 131.The output end of frequency synthesizer 131 and power amplifier 132
Input terminal connection, the output end of power amplifier 132 are connect with antenna 300.
In a second embodiment, wireless digital broadcasting station 100 is in emission state.The working principle of each section is implemented with first
The case where when wireless digital broadcasting station 100 is in emission state in example, is consistent.
Fig. 5 is 100 internal structure of wireless digital broadcasting station of 3rd embodiment and the electricity that connect with host computer 200, antenna 300
Road.As shown in figure 5, wireless digital broadcasting station 100 includes multi-mode governor circuit 110 and RF receiving circuit 120.Wherein, radio frequency
Receiving circuit 120 includes first filter 121, low-noise amplifier 122, frequency mixer 123, second filter 124, digital-to-analogue conversion
Device 125, local oscillation signal generator 126.
Wherein, antenna 300 is connect with the input terminal of first filter 121, the output end and low noise of first filter 121
The input terminal of amplifier 122 connects, and the output end of low-noise amplifier 122 is connect with the input terminal of frequency mixer 123, frequency mixer
123 output end is connect with the input terminal of second filter 124, output end and the digital analog converter 125 of second filter 124
Input terminal connection, the output end of digital analog converter 125 are connect with the input terminal of multi-mode governor circuit 110, multi-mode master control electricity
The output end on road 110 is connect with the input terminal of host computer 200.In addition, the output end and frequency mixer of local oscillation signal generator 126
123 another input terminal connection.
In the third embodiment, wireless digital broadcasting station 100 is in reception state, and the local oscillation signal that frequency mixer 123 needs
It is provided by local oscillation signal generator 126.Wireless digital broadcasting station 100 is in the working principle and first embodiment of remaining each section
The case where when reception state, is consistent.
In the above various embodiments, wireless digital broadcasting station 100 can be in any one of GMSK, MSK, 4FSK and DQPSK mode
It works under mode.
In conclusion the multi-mode governor circuit 110 in wireless digital broadcasting station 100 in the above various embodiments, according to tune
Mode signal processed or pattern synchronization signal switch to different modes and are modulated or demodulate, so that the wireless data sending is electric
Platform 100 can work in different modes.Therefore, the wireless digital broadcasting station 100 in the present invention can be such that user is being changed without
In the case where radio station, realization is communicated with each other with different types of wireless digital broadcasting station 100, is not only convenient for user's use, Er Qiejie
About cost.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Only several embodiments of the present invention are expressed for above embodiments, describe it is more specific, but can not therefore and
It is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art, not departing from this
Under the premise of inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.Therefore, originally
The scope of protection shall be subject to the appended claims for patent of invention.
Claims (10)
1. a kind of wireless digital broadcasting station is in reception state or emission state, special respectively with host computer, antenna two-way communication
Sign is that the wireless digital broadcasting station can switch to different modulation or demodulation modes and work, and wireless data sending electricity
Platform includes multi-mode governor circuit, RF receiving circuit, radio frequency transmitter circuitry；
The multi-mode governor circuit for being bi-directionally connected with the host computer, and the multi-mode governor circuit respectively with it is described
RF receiving circuit, radio frequency transmitter circuitry connection；The RF receiving circuit, radio frequency transmitter circuitry are respectively used to and the antenna
Connection；
The RF receiving circuit, for carrying out frequency modulation filter to the received radiofrequency signal comprising pattern synchronization signal of the antenna
Wave processing, and signal is sent to the multi-mode governor circuit by treated, wherein the pattern synchronization signal is for indicating
The modulating mode that the radiofrequency signal uses；
The multi-mode governor circuit, treated for receiving RF receiving circuit signal, and it is same according to the mode
Step signal switches to corresponding mode, then demodulates to the RF receiving circuit treated signal by corresponding mode,
The signal after demodulation is finally sent to the host computer；
The multi-mode governor circuit is also used to receive signal to be modulated and for indicating and need to use to the signal to be modulated
The modulating mode signal of modulating mode, and corresponding mode is switched to according to the modulating mode signal, then to described to be modulated
Signal is modulated by corresponding mode, and modulated signal is finally sent to the radio frequency transmitter circuitry；
The radio frequency transmitter circuitry, for carrying out frequency modulation enhanced processing to the modulated signal, and will treated signal
It is sent to the antenna, the antenna launches the amplified signal of frequency modulation.
2. wireless digital broadcasting station according to claim 1, which is characterized in that the wireless digital broadcasting station is using semiduplex
Mode works.
3. wireless digital broadcasting station according to claim 1, which is characterized in that the RF receiving circuit includes being sequentially connected
First filter, low-noise amplifier, frequency mixer, second filter, digital analog converter, wherein the first filter is used for
It is connect with the antenna, the digital analog converter is connect with the multi-mode governor circuit.
4. wireless digital broadcasting station according to claim 3, which is characterized in that the radio frequency transmitter circuitry includes being sequentially connected
Frequency synthesizer and power amplifier, wherein the frequency synthesizer and the multi-mode governor circuit with connect, the function
Rate amplifier be used for the antenna with connect.
5. wireless digital broadcasting station according to claim 4, which is characterized in that the frequency synthesizer also with the frequency mixer
Connection, and the frequency synthesizer generates local oscillation signal, and local oscillation signal is transmitted the frequency mixer.
6. a kind of wireless digital broadcasting station, be in reception state, respectively with host computer, antenna communication, which is characterized in that it is described wireless
Data radio station can switch to different modulation or demodulation modes and work, and the wireless digital broadcasting station includes multi-mode master control
Circuit, RF receiving circuit；
The multi-mode governor circuit with the host computer for connecting, and the multi-mode governor circuit and the radio frequency reception
Circuit connection；The RF receiving circuit with the antenna for connecting；
The RF receiving circuit, for carrying out frequency modulation filter to the received radiofrequency signal comprising pattern synchronization signal of the antenna
Wave processing, and signal is sent to the multi-mode governor circuit by treated, the pattern synchronization signal is for indicating described
The modulating mode that radiofrequency signal uses；
The multi-mode governor circuit, treated for receiving RF receiving circuit signal, and it is same according to the mode
Step signal switches to corresponding mode, then demodulates to the RF receiving circuit treated signal by corresponding mode,
The signal after demodulation is finally sent to the host computer.
7. wireless digital broadcasting station according to claim 6, which is characterized in that the RF receiving circuit includes being sequentially connected
First filter, low-noise amplifier, frequency mixer, second filter, digital analog converter, and the RF receiving circuit also wraps
It includes for the local oscillation signal generation circuit to frequency mixer input local oscillation signal, wherein the first filter is used for and the antenna
Connection, the digital analog converter are connect with the multi-mode governor circuit.
8. a kind of wireless digital broadcasting station, be in emission state, respectively with host computer, antenna communication, which is characterized in that it is described wireless
Data radio station can switch to different modulation or demodulation modes and work, and the wireless digital broadcasting station includes multi-mode master control
Circuit, radio frequency transmitter circuitry；
The multi-mode governor circuit with the host computer for connecting, and the multi-mode governor circuit and the radio-frequency transmissions
Circuit connection；The radio frequency transmitter circuitry with the antenna for connecting；
The multi-mode governor circuit, for receiving signal to be modulated and for indicating the tune that need to be used to the signal to be modulated
The modulating mode signal of molding formula, and corresponding mode is switched to according to the modulating mode signal, then to the letter to be modulated
It number is modulated by corresponding mode, modulated signal is finally sent to the radio frequency transmitter circuitry；
The radio frequency transmitter circuitry, for carrying out frequency modulation enhanced processing to the modulated signal, and will treated signal
It is sent to the antenna, the antenna launches the amplified signal of frequency modulation.
9. wireless digital broadcasting station according to claim 8, which is characterized in that the radio frequency transmitter circuitry includes being sequentially connected
Frequency synthesizer and power amplifier, wherein the multi-mode governor circuit is connect with the frequency synthesizer, the power
Amplifier with the antenna for connecting.
10. according to claim 1 to wireless digital broadcasting station described in any claim in 9, which is characterized in that the no line number
The platform that conducts electricity works in GMSK, MSK, 4FSK or DQPSK mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510456158.4A CN105162540B (en) | 2015-07-29 | 2015-07-29 | Wireless digital broadcasting station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510456158.4A CN105162540B (en) | 2015-07-29 | 2015-07-29 | Wireless digital broadcasting station |
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| CN105162540A CN105162540A (en) | 2015-12-16 |
| CN105162540B true CN105162540B (en) | 2018-12-11 |
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| CN201510456158.4A Active CN105162540B (en) | 2015-07-29 | 2015-07-29 | Wireless digital broadcasting station |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109152087B (en) * | 2018-07-26 | 2022-02-11 | 同方电子科技有限公司 | Radio station-based extension method for friend or foe identification function |
| CN109548058B (en) * | 2018-12-26 | 2022-04-29 | 深圳市华信天线技术有限公司 | Communication method and device for self-adaptive switching of communication modes of multimode data radio |
| CN109687918A (en) * | 2019-01-09 | 2019-04-26 | 深圳市华信天线技术有限公司 | A kind of data radio station power compensating method, device, terminal and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101155159A (en) * | 2006-09-25 | 2008-04-02 | 夏普株式会社 | Detecting circuit, modulation scheme identifying circuit, integrated circuit, tuning device, and common multi-scheme receiving device |
| CN101826938A (en) * | 2010-03-31 | 2010-09-08 | 华为技术有限公司 | Method, terminal and system for transmitting and receiving service information |
| CN103095626A (en) * | 2011-10-28 | 2013-05-08 | 中国科学院上海微系统与信息技术研究所 | Switching method of modulation-demodulation operating modes |
| CN203734658U (en) * | 2013-12-31 | 2014-07-23 | 深圳市友讯达科技发展有限公司 | High-speed data transmission radio station |
| CN204013602U (en) * | 2014-08-06 | 2014-12-10 | 桂林电子科技大学 | A kind of implement device of OFDM double modulation demodulation mode |
-
2015
- 2015-07-29 CN CN201510456158.4A patent/CN105162540B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101155159A (en) * | 2006-09-25 | 2008-04-02 | 夏普株式会社 | Detecting circuit, modulation scheme identifying circuit, integrated circuit, tuning device, and common multi-scheme receiving device |
| CN101826938A (en) * | 2010-03-31 | 2010-09-08 | 华为技术有限公司 | Method, terminal and system for transmitting and receiving service information |
| CN103095626A (en) * | 2011-10-28 | 2013-05-08 | 中国科学院上海微系统与信息技术研究所 | Switching method of modulation-demodulation operating modes |
| CN203734658U (en) * | 2013-12-31 | 2014-07-23 | 深圳市友讯达科技发展有限公司 | High-speed data transmission radio station |
| CN204013602U (en) * | 2014-08-06 | 2014-12-10 | 桂林电子科技大学 | A kind of implement device of OFDM double modulation demodulation mode |
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