CN108900879A - High resolution audio and video wireless transmission, method of reseptance and device, transmission method and system - Google Patents
High resolution audio and video wireless transmission, method of reseptance and device, transmission method and system Download PDFInfo
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- CN108900879A CN108900879A CN201810701720.9A CN201810701720A CN108900879A CN 108900879 A CN108900879 A CN 108900879A CN 201810701720 A CN201810701720 A CN 201810701720A CN 108900879 A CN108900879 A CN 108900879A
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- 238000000034 method Methods 0.000 title claims abstract description 54
- 230000005540 biological transmission Effects 0.000 title claims abstract description 27
- 238000004891 communication Methods 0.000 claims description 18
- 238000013459 approach Methods 0.000 claims description 5
- 238000001228 spectrum Methods 0.000 abstract description 12
- 230000035515 penetration Effects 0.000 abstract description 8
- 230000000903 blocking effect Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000004590 computer program Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses high resolution audio and video wireless transmission, method of reseptance and device, transmission method and systems, and wherein sending method includes the following steps：The audio, video data that will acquire is modulated to multi-carrier signal, and multi-carrier signal is located at 862-870MHz frequency range or 902-928MHz frequency range；Multi-carrier signal is sent by antenna.It is transmitted by the multi-carrier signal for being modulated to be located at 862-870MHz frequency range or 902-928MHz frequency range for audio, video data, realize high resolution audio and video data in the transmission of 862-870MHz frequency range or 902-928MHz frequency range using the high spectrum utilization of multiple carrier channel, the multi-carrier signal penetration capacity and diffracting power of the frequency range are stronger, therefore multi-carrier signal can preferably be distributed in preset range, such as family, public place etc., blocking for the objects such as wall, cabinet body is avoided.
Description
Technical field
The present invention relates to audio video transmission technology more particularly to high resolution audio and video wireless transmissions, method of reseptance and device, biography
Transmission method and system.
Background technique
Existing audio-video signal wireless transmission passes through WIFI equipment reality as HDMI data transmission wireless extension scheme
It is existing, WIFI module is set in transmitting terminal and interface end respectively.Since user is to audio, video data laser propagation effect, such as stability and biography
The requirement passed in terms of rate is higher and higher, needs to carry out the wireless transmission of high resolution audio and video in complex environment, needs in nothing
Line signal has stronger ability through walls and diffracting power；But the ability through walls of existing WIFI scheme wireless audio and video signal
It is poor with diffracting power, and WIFI device at least needs the radio frequency analog bandwidth of 20MHz or more, the availability of frequency spectrum is low.
Summary of the invention
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide high resolution audio and video wireless transmission sides
Method can solve the ability through walls of existing WIFI scheme wireless audio and video signal and the problem that diffracting power is poor.
The second object of the present invention is to provide high resolution audio and video method of wireless reception, can solve existing WIFI scheme
The poor problem of the ability through walls and diffracting power of wireless audio and video signal.
The third object of the present invention is to provide high resolution audio and video radio transmitting method, can solve existing WIFI scheme
The poor problem of the ability through walls and diffracting power of wireless audio and video signal.
The fourth object of the present invention is to provide high resolution audio and video wireless base station apparatus, can solve existing WIFI scheme
The poor problem of the ability through walls and diffracting power of wireless audio and video signal.
The fifth object of the present invention is to provide high resolution audio and video radio receiver, can solve existing WIFI scheme
The poor problem of the ability through walls and diffracting power of wireless audio and video signal.
The sixth object of the present invention is to provide high resolution audio and video wireless transmitting system, is stored with computer program, energy
Solve the problems, such as that ability through walls and the diffracting power of existing WIFI scheme wireless audio and video signal are poor.
An object of the present invention is implemented with the following technical solutions：
High resolution audio and video radio communication method is used for sending device, includes the following steps：
The audio, video data that will acquire is modulated to multi-carrier signal, the multi-carrier signal be located at 862-870MHz frequency range or
902-928MHz frequency range；
The multi-carrier signal is sent by antenna.
Further, the audio, video data that will acquire is modulated to multi-carrier signal, and the multi-carrier signal is located at
862-870MHz frequency range or 902-928MHz frequency range, specifically include following steps：
Audio, video data is obtained by data-interface；
The audio, video data is encoded to coded data；
The coded data is modulated to the overloading that centre frequency is located at 862-870MHz frequency range or 902-928MHz frequency range
Wave signal.
Further, the data-interface include HDMI interface, DVI interface, in SDI interface at least.
Further, described that the audio, video data is encoded to coded data, specifically by MPEG-1, MPEG-2,
H.264 or H.265 the audio, video data is encoded to coded data by MPEG-4, encryption algorithm.
Further, described the coded data is modulated to centre frequency to be located at 862-870MHz frequency range or 902-
The coded data is modulated to centre frequency specifically by OFDM algorithm and is located at 862- by the multi-carrier signal of 928MHz frequency range
The multi-carrier signal of 870MHz frequency range or 902-928MHz frequency range.
Further, it is described by OFDM algorithm by the coded data be modulated to centre frequency be located at 862-870MHz frequency
The multi-carrier signal of section or 902-928MHz frequency range, specifically includes following steps：
The coded data is handled as multichannel sub-data flow；
Each sub-data flow is mixed to obtain the multi-carrier signal with the oscillator signal of respective sub-channel；
The centre frequency of the multichannel sub-data flow respective sub-channel oscillator signal is located at 862-870MHz frequency range or 902-
928MHz frequency range.
Further, described to be mixed each sub-data flow with the oscillator signal of respective sub-channel to obtain the multicarrier letter
Number, specially：
By BPSK, QPSK, 8PSK, 16QAM or 64QAM modulator approach by the oscillation of each sub-data flow and respective sub-channel
Signal mixing, obtains the multi-carrier signal.
Further, the centre frequency of the multi-carrier signal is 915MHz or 868MHz.
The second object of the present invention is implemented with the following technical solutions：
High resolution audio and video method of wireless reception is used for reception device, includes the following steps：
The multi-carrier signal is received by antenna, the multi-carrier signal is located at 862-870MHz frequency range or 902-
928MHz frequency range；
The multi-carrier signal is demodulated, audio/video information is exported.
Further, the demodulation multi-carrier signal, exports audio/video information, specially：
The multi-carrier signal is demodulated by OFDM algorithm, exports audio/video information.
Further, described that the multi-carrier signal is demodulated by OFDM algorithm, export audio/video information, specifically include with
Lower step：
The multi-carrier signal is demodulated into multichannel sub-data flow；
The multichannel sub-data flow is handled as audio/video information and exported.
The third object of the present invention is implemented with the following technical solutions：
High resolution audio and video radio transmitting method, which is characterized in that include the following steps：
High resolution audio and video wireless base station apparatus sends multi-carrier signal according to above-mentioned high resolution audio and video radio communication method；
High resolution audio and video radio receiver obtains and demodulates the multi-carrier signal, exports audio/video information；
The multi-carrier signal and high resolution audio and video radio receiver that high resolution audio and video wireless base station apparatus is sent are received
Multi-carrier signal is identical, and is located at 862-870MHz frequency range or 902-928MHz frequency range.
The fourth object of the present invention is implemented with the following technical solutions：
High resolution audio and video wireless base station apparatus, including memory, processor and program stored in memory, it is described
Program is configured to be executed by processor, and processor realizes above-mentioned high resolution audio and video radio communication method when executing described program
Step.
The fifth object of the present invention is implemented with the following technical solutions：
High resolution audio and video radio receiver, including memory, processor and program stored in memory, it is described
Program is configured to be executed by processor, and processor realizes above-mentioned high resolution audio and video method of wireless reception when executing described program
Step.
The sixth object of the present invention is implemented with the following technical solutions：
High resolution audio and video wireless transmitting system, including above-mentioned high resolution audio and video wireless base station apparatus and above-mentioned height
Audio-visual radio receiver；
The multi-carrier signal and high resolution audio and video radio receiver that high resolution audio and video wireless base station apparatus is sent are received
Multi-carrier signal is identical, and is located at 862-870MHz frequency range or 902-928MHz frequency range.
Compared with prior art, the beneficial effect of the embodiment of the present invention is：By the way that audio, video data is modulated to be located at
The multi-carrier signal of 862-870MHz frequency range or 902-928MHz frequency range is transmitted, and is utilized using the high spectrum of multiple carrier channel
Rate realizes transmission of the high resolution audio and video data in 862-870MHz frequency range or 902-928MHz frequency range, the multi-carrier signal of the frequency range
Penetration capacity and diffracting power are stronger, therefore multi-carrier signal can preferably be distributed in preset range, such as family, public place
Etc., avoid blocking for the objects such as wall, cabinet body.
Detailed description of the invention
Fig. 1 is the flow diagram of the high resolution audio and video radio communication method of the embodiment of the present invention one；
Fig. 2 is the flow diagram of the high resolution audio and video radio transmitting method of the embodiment of the present invention two；
Fig. 3 is the flow diagram of high resolution audio and video method of wireless reception in Fig. 2；
Fig. 4 is the high resolution audio and video wireless base station apparatus or high resolution audio and video radio receiver of the embodiment of the present invention three
Structural schematic diagram；
Fig. 5 is the structural schematic diagram of the high resolution audio and video wireless transmitting system of the embodiment of the present invention three.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
Embodiment one
Such as the flow diagram that Fig. 1 is high resolution audio and video radio communication method, include the following steps：
Step S110, the audio, video data that will acquire is modulated to multi-carrier signal, and the multi-carrier signal is located at 862-
870MHz frequency range or 902-928MHz frequency range.
The radio signal wavelength of the two frequency ranges compared with 2.4GHz and 5GHz long, therefore be located at 862-870MHz frequency range or
The multi-carrier signal penetration capacity and diffracting power of 902-928MHz frequency range are stronger, therefore multi-carrier signal can be preferably distributed
Blocking for the objects such as wall, cabinet body is avoided such as family, public place etc. in preset range.
As preferred embodiment, the audio, video data that step S110 will acquire is modulated to multi-carrier signal, described more
Carrier signal is located at 862-870MHz frequency range or 902-928MHz frequency range specifically includes following steps：
Step S111, audio, video data is obtained by data-interface.
Data-interface is that mobile phone, computer, server, video camera etc. provide sound view for connecting source device, source device
The equipment of frequency evidence.In the present embodiment, the data-interface include HDMI interface, DVI interface, in SDI interface at least.
High-definition multimedia interface (High Definition Multimedia Interface, HDMI) is digitlization
Audio-video/audio interface technology is the tailored version digital interface for being suitble to image transmission, can transmit audio and image letter simultaneously
Number.
Step S112, the audio, video data is encoded to coded data.
It is described that the audio, video data is encoded to coded data as preferred embodiment, specifically by MPEG-
1, MPEG-2, MPEG-4, H.264 or H.265 the audio, video data is encoded to coded data by encryption algorithm.
The specific type audio, video data obtained by certain a kind of data-interface, as the audio, video data of HDMI format passes through
Coding can reduce the data volume of audio, video data, improves its compatibility by multiple-carrier signal transmission, meets receiving end and set
The requirement of the operations such as standby audio-video analysis, storage, editor.
Step S113, the coded data is modulated to centre frequency and is located at 862-870MHz frequency range or 902-928MHz frequency
The multi-carrier signal of section.In the present embodiment, the centre frequency of multi-carrier signal is 915MHz or 868MHz.
As preferred embodiment, the coded data is modulated to centre frequency and is located at 862-870MHz by step S113
The multi-carrier signal of frequency range or 902-928MHz frequency range, frequency centered on modulating the coded data specifically by OFDM algorithm
Rate is located at the multi-carrier signal of 862-870MHz frequency range or 902-928MHz frequency range.
As preferred embodiment, the coded data is modulated to by centre frequency by OFDM algorithm and is located at 862-
The multi-carrier signal of 870MHz frequency range or 902-928MHz frequency range.
COFDM (coded orthogonal frequency division multiplexing) i.e. coded Orthogonal Frequency Division
The characteristics of multiplexing is that each subcarrier is mutually orthogonal, and the frequency spectrum after alloing band spectrum modulation is overlapped, to reduce subcarrier
Between interfere with each other；To improve to overloading wave modulation, spectrum of carrier utilization rate is improved.
As preferred embodiment, the coded data is modulated to by centre frequency by OFDM algorithm and is located at 862-
The multi-carrier signal of 870MHz frequency range or 902-928MHz frequency range, specifically includes following steps：
Step S1131, the coded data is handled as multichannel sub-data flow.
Coded data is subjected to serioparallel exchange, is handled as multichannel sub-data flow, to be adapted to multiple carrier-wave transmissions.With
For 3780-COFDM algorithm modulation system, coded data can be divided into 3780 sub-data streams, every sub-data stream includes I
Signal and corresponding Q signal.
Step S1132, each sub-data flow is mixed to obtain the multi-carrier signal with the oscillator signal of respective sub-channel.
The centre frequency of the multichannel sub-data flow respective sub-channel oscillator signal is located at 862-870MHz frequency range or 902-
928MHz frequency range.
The channel for transmitting multi-carrier signal has multiple subchannels, such as 3780 sub-channels, the frequency of each subchannel carrier
It is different.By each sub-data respectively with respective sub-channel carrier wave, i.e. oscillator signal is mixed, and multi-carrier signal is obtained.
Each subchannel carrier is mutually orthogonal, and the frequency spectrum after alloing band spectrum modulation is overlapped, thus mutual between reducing subcarrier
Interference, so that propagation data clarity is high, transmission delay is lower.
Multi-carrier signal is parallel low speed sub-data flow, and each individual transmitted bit rate of sub-data flow is lower, still
Multi-carrier signal overall transmission rate is very high, passes through 862-870MHz frequency range or 902-928MHz band transmissions high definition to realize
Audio, video data utilizes the penetration capacity and diffracting power of the frequency range wireless signal.
As preferred embodiment, each sub-data flow is mixed by step S1132 with the oscillator signal of respective sub-channel
To the multi-carrier signal, specially：
By BPSK, QPSK, 8PSK, 16QAM or 64QAM modulator approach by the oscillation of each sub-data flow and respective sub-channel
Signal mixing, obtains the multi-carrier signal.
In OFDM algorithm, each subchannel can choose the modulator approaches such as BPSK, QPSK, 8PSK, 16QAM or 64QAM.Overloading
Modulator approach used in the every sub-channels of wave signal can be different, and each sub-channels can be according to channel conditions where it not
The different modulation system with selection.The rate of multi-carrier signal channel is generally greater than 4Mbps after mixing, can transmit high quality completely
Volume solution data.
Step S120, the multi-carrier signal is sent by antenna.
As preferred embodiment, the working frequency range of the antenna is 862-870MHz frequency range or 902-928MHz frequency
Section.
High resolution audio and video radio communication method provided in an embodiment of the present invention, by the way that audio, video data to be modulated to be located at
The multi-carrier signal of 862-870MHz frequency range or 902-928MHz frequency range is transmitted, and the radio frequency analog less than 8MHz need to be only occupied
Bandwidth and using multiple carrier channel high spectrum utilization realize high resolution audio and video data in 862-870MHz frequency range or 902-
The transmission of 928MHz frequency range, the multi-carrier signal penetration capacity and diffracting power of the frequency range are stronger, therefore multi-carrier signal can be with
It preferably is distributed in preset range, such as family, public place etc., avoids blocking for the objects such as wall, cabinet body.And the present invention is real
The high resolution audio and video radio communication method for applying example offer can break through in WIFI scheme since bandwidth limits a sending device most
It is only four high resolution audio and video radio receivers more and the defect of signal is provided, increase high resolution audio and video radio receiver not
The reception that other high resolution audio and video radio receiver signals can be tied up may be implemented a sending device and regard to multiple high voicelesss sound
Frequency radio receiver, to reduce the quantity required of sending device.
Embodiment two
High resolution audio and video radio transmitting method as shown in Figure 2, includes the following steps：
Step S210, high resolution audio and video wireless base station apparatus is according to the high resolution audio and video radio communication method in embodiment one
Send multi-carrier signal.
By the way that audio, video data is modulated to be located at the multi-carrier signal of 862-870MHz frequency range or 902-928MHz frequency range
It is transmitted, realizes high resolution audio and video data in 862-870MHz frequency range or 902- using the high spectrum utilization of multiple carrier channel
The transmission of 928MHz frequency range, the multi-carrier signal penetration capacity and diffracting power of the frequency range are stronger, therefore multi-carrier signal can be with
It preferably is distributed in preset range, such as family, public place etc., avoids blocking for the objects such as wall, cabinet body.
Step S220, high resolution audio and video radio receiver obtains and demodulates the multi-carrier signal, output audio-video letter
Breath.
In the present embodiment, step S220 high resolution audio and video radio receiver obtains and demodulates the multi-carrier signal,
Audio/video information is exported, specially high resolution audio and video radio receiver is according to high resolution audio and video wireless receiving as described in Figure 3
Method obtains and demodulates the multi-carrier signal, exports audio/video information.
As shown in figure 3, high resolution audio and video method of wireless reception includes the following steps：
Step S310, the multi-carrier signal is received by antenna, the multi-carrier signal is located at 862-870MHz frequency range
Or 902-928MHz frequency range.
High resolution audio and video radio receiver obtains 862-870MHz frequency range or 902-928MHz frequency range by receiving antenna
Multi-carrier signal.
Step S320, the multi-carrier signal is demodulated, audio/video information is exported.
As preferred embodiment, step S320 demodulates the multi-carrier signal, exports audio/video information, specially：
The multi-carrier signal is demodulated by OFDM algorithm, exports audio/video information.
In the present embodiment, the multi-carrier signal is demodulated by OFDM algorithm, output audio/video information specifically include with
Lower step：
Step S321, the multi-carrier signal is demodulated into multichannel sub-data flow.
Step S322, the multichannel sub-data flow is handled as audio/video information and is exported.
As preferred embodiment, step S322 handles multichannel sub-data flow for audio/video information, specially will solution
It adjusts what is obtained multichannel sub-data flow is reduced to coded data, then decoded obtains high resolution audio and video data, i.e. audio/video information.
High resolution audio and video radio receiver is connected to display equipment such as television set, projector, display etc., and output audio/video information is extremely
Display equipment is shown.
The multi-carrier signal and high resolution audio and video sent as preferred embodiment, high resolution audio and video wireless base station apparatus
The received multi-carrier signal of radio receiver is identical, and is located at 862-870MHz frequency range or 902-928MHz frequency range.
The high resolution audio and video radio transmitting method, the method for reseptance that there is provided in the present invention is implemented, by by audio, video data tune
It is made as being located at 862-870MHz frequency range or the multi-carrier signal of 902-928MHz frequency range is transmitted, utilize the height of multiple carrier channel
The availability of frequency spectrum realize high resolution audio and video data 862-870MHz frequency range or 902-928MHz frequency range transmission, the frequency range it is more
Carrier signal penetration capacity and diffracting power are stronger, therefore multi-carrier signal can preferably be distributed in preset range, as family,
Public place etc. avoids blocking for the objects such as wall, cabinet body.
As seen through the above description of the embodiments, those skilled in the art can be understood that of the invention real
Applying the high resolution audio and video radio communication method in example one can realize by means of software and necessary general hardware platform.Base
In such understanding, substantially the part that contributes to existing technology can be in other words for the technical solution of the embodiment of the present invention one
Be expressed in the form of software products, which can store in storage medium, as ROM/RAM, magnetic disk,
CD etc., including some instructions are used so that a computer equipment (can be personal computer, server or network are set
It is standby etc.) method described in certain parts of each embodiment of the present invention or embodiment is executed, such as：
Storage medium, the storage medium are stored with computer program, real when the computer program is executed by processor
The step of existing aforementioned high resolution audio and video radio transmitting method.
The present invention can be used in numerous general or special purpose computing system environments or configuration.Such as：Personal computer, service
Device computer, handheld device or portable device, laptop device, multicomputer system, microprocessor-based system, machine top
Box, programmable consumer-elcetronics devices, network PC, minicomputer, mainframe computer, including any of the above system or equipment
Distributed computing environment etc., such as embodiment three.
Embodiment three
High resolution audio and video wireless base station apparatus as shown in Figure 4, including memory 200, processor 300 and be stored in
Program in reservoir 200, described program are configured to be executed by processor 300, and processor 300 is realized when executing described program
The step of stating high resolution audio and video radio communication method.
Correspondingly, the structural schematic diagram of high resolution audio and video radio receiver can also refer to shown in Fig. 4, including memory
200, processor 300 and the program being stored in memory 200, described program are configured to be executed by processor 300, processing
The step of device 300 realizes above-mentioned high resolution audio and video method of wireless reception when executing described program.
By high resolution audio and video wireless transmission, high resolution audio and video radio receiver, it is wireless that high resolution audio and video may be implemented
Transmission system, as shown in figure 5, high resolution audio and video wireless transmitting system includes high resolution audio and video wireless base station apparatus 10, Yi Jigao
Audio-visual radio receiver 20.
The multi-carrier signal and high resolution audio and video sent as preferred embodiment, high resolution audio and video wireless base station apparatus
The received multi-carrier signal of radio receiver is identical, and is located at 862-870MHz frequency range or 902-928MHz frequency range.
High resolution audio and video radio receiver 20 is sent out for obtaining and demodulating the high resolution audio and video wireless base station apparatus 10
The multi-carrier signal sent, and output audio/video information.
High resolution audio and video wireless base station apparatus and high resolution audio and video wireless transmitting system and aforementioned implementation in the present embodiment
Method in example is to have made detailed retouch to method implementation process in front based on the same inventive concept in terms of lower two
It states, so the structure for the electronic equipment that those skilled in the art can be well understood in this implementation according to foregoing description and implementing
Journey, in order to illustrate the succinct of book, details are not described herein again.
High resolution audio and video wireless base station apparatus and high resolution audio and video wireless transmitting system provided in an embodiment of the present invention, pass through
The multi-carrier signal that audio, video data is modulated to be located at 862-870MHz frequency range or 902-928MHz frequency range is transmitted, is utilized
The high spectrum utilization of multiple carrier channel realizes high resolution audio and video data in 862-870MHz frequency range or 902-928MHz frequency range
Transmission, the multi-carrier signal penetration capacity and diffracting power of the frequency range are stronger, therefore multi-carrier signal can be preferably distributed in
Preset range avoids blocking for the objects such as wall, cabinet body such as family, public place etc..
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (14)
1. high resolution audio and video radio communication method, which is characterized in that be used for sending device, include the following steps：
The audio, video data that will acquire is modulated to multi-carrier signal, and the multi-carrier signal is located at 862-870MHz frequency range or 902-
928MHz frequency range；
The multi-carrier signal is sent by antenna.
2. high resolution audio and video radio communication method as described in claim 1, it is characterised in that：The audio-video number that will acquire
According to multi-carrier signal is modulated to, the multi-carrier signal is located at 862-870MHz frequency range or 902-928MHz frequency range, specifically includes
Following steps：
Audio, video data is obtained by data-interface；
The audio, video data is encoded to coded data；
The coded data is modulated to the multicarrier letter that centre frequency is located at 862-870MHz frequency range or 902-928MHz frequency range
Number.
3. high resolution audio and video radio communication method as claimed in claim 2, it is characterised in that：The data-interface includes HDMI
Interface, DVI interface, in SDI interface at least；It is described that the audio, video data is encoded to coded data, specifically by
H.264 or H.265 MPEG-1, MPEG-2, MPEG-4, the audio, video data is encoded to coded data by encryption algorithm.
4. high resolution audio and video radio communication method as claimed in claim 2, it is characterised in that：It is described by the coded data tune
It is made as the multi-carrier signal that centre frequency is located at 862-870MHz frequency range or 902-928MHz frequency range, specifically by OFDM algorithm
The coded data is modulated to the multi-carrier signal that centre frequency is located at 862-870MHz frequency range or 902-928MHz frequency range.
5. high resolution audio and video radio communication method as claimed in claim 4, it is characterised in that：It is described by OFDM algorithm by institute
It states coded data and is modulated to the multi-carrier signal that centre frequency is located at 862-870MHz frequency range or 902-928MHz frequency range, it is specific to wrap
Include following steps：
The coded data is handled as multichannel sub-data flow；
Each sub-data flow is mixed to obtain the multi-carrier signal with the oscillator signal of respective sub-channel；
The centre frequency of the multichannel sub-data flow respective sub-channel oscillator signal is located at 862-870MHz frequency range or 902-
928MHz frequency range.
6. high resolution audio and video radio communication method as claimed in claim 5, it is characterised in that：It is described by each sub-data flow and phase
The oscillator signal of subchannel is answered to be mixed to obtain the multi-carrier signal, specially：
By BPSK, QPSK, 8PSK, 16QAM or 64QAM modulator approach by the oscillator signal of each sub-data flow and respective sub-channel
Mixing, obtains the multi-carrier signal.
7. such as high resolution audio and video radio communication method of any of claims 1-6, it is characterised in that：The multicarrier
The centre frequency of signal is 915MHz or 868MHz.
8. high resolution audio and video method of wireless reception, which is characterized in that be used for reception device, include the following steps：
The multi-carrier signal is received by antenna, the multi-carrier signal is located at 862-870MHz frequency range or 902-928MHz frequency
Section；
The multi-carrier signal is demodulated, audio/video information is exported.
9. high resolution audio and video method of wireless reception as claimed in claim 8, it is characterised in that：The demodulation multicarrier letter
Number, audio/video information is exported, specially：
The multi-carrier signal is demodulated by OFDM algorithm, exports audio/video information.
10. high resolution audio and video method of wireless reception as claimed in claim 9, it is characterised in that：It is described to pass through OFDM algorithm solution
The multi-carrier signal is adjusted, audio/video information is exported, specifically includes following steps：
The multi-carrier signal is demodulated into multichannel sub-data flow；
The multichannel sub-data flow is handled as audio/video information and exported.
11. high resolution audio and video radio transmitting method, which is characterized in that include the following steps：
High resolution audio and video wireless base station apparatus is according to high resolution audio and video wireless transmission side such as of any of claims 1-7
Method sends multi-carrier signal；
High resolution audio and video radio receiver is according to the high resolution audio and video wireless receiving as described in any one of claim 8-10
Method obtains and demodulates the multi-carrier signal, exports audio/video information；
The multi-carrier signal and the received overloading of high resolution audio and video radio receiver that high resolution audio and video wireless base station apparatus is sent
Wave signal is identical, and is located at 862-870MHz frequency range or 902-928MHz frequency range.
12. high resolution audio and video wireless base station apparatus, it is characterised in that：In memory including memory, processor and storage
Program, described program is configured to be executed by processor, and processor is realized when executing described program as appointed in claim 1-7
The step of one high resolution audio and video radio communication method.
13. high resolution audio and video radio receiver, it is characterised in that：In memory including memory, processor and storage
Program, described program is configured to be executed by processor, and processor is realized when executing described program as in claim 8-10
The step of any one high resolution audio and video method of wireless reception.
14. high resolution audio and video wireless transmitting system, it is characterised in that：It is wireless including high resolution audio and video as claimed in claim 12
Sending device, and high resolution audio and video radio receiver as claimed in claim 13；
The multi-carrier signal and the received overloading of high resolution audio and video radio receiver that high resolution audio and video wireless base station apparatus is sent
Wave signal is identical, and is located at 862-870MHz frequency range or 902-928MHz frequency range.
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