CN105657452B - Hybrid transmission system and method for USB data and video data - Google Patents
Hybrid transmission system and method for USB data and video data Download PDFInfo
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- CN105657452B CN105657452B CN201610047686.9A CN201610047686A CN105657452B CN 105657452 B CN105657452 B CN 105657452B CN 201610047686 A CN201610047686 A CN 201610047686A CN 105657452 B CN105657452 B CN 105657452B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 234
- 238000000034 method Methods 0.000 title claims abstract description 70
- 238000011144 upstream manufacturing Methods 0.000 claims description 161
- 230000003287 optical effect Effects 0.000 claims description 61
- 230000004913 activation Effects 0.000 claims description 55
- 238000001994 activation Methods 0.000 claims description 55
- 230000008569 process Effects 0.000 claims description 39
- 239000013307 optical fiber Substances 0.000 claims description 38
- 241001269238 Data Species 0.000 claims description 31
- 238000007906 compression Methods 0.000 claims description 31
- 230000006835 compression Effects 0.000 claims description 31
- 230000006837 decompression Effects 0.000 claims description 27
- 238000013144 data compression Methods 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000000835 fiber Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000005693 optoelectronics 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6118—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving cable transmission, e.g. using a cable modem
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
- H04N21/6168—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving cable transmission, e.g. using a cable modem
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a hybrid transmission system and method for USB data and video data. A first hybrid transmission device in the hybrid transmission system mixes the video data, downlink USB 2.0 and USB 3.0 data and sends the same to a second hybrid transmission device, and meanwhile separates the hybrid data of uplink USB 2.0 and USB 3.0 data; and the second hybrid transmission device mixes the uplink USB 2.0 and USB 3.0 data and sends the same to the first hybrid transmission device, and meanwhile separates the hybrid data of the video data and the downlink USB 2.0 and USB 3.0 data. By adopting the hybrid transmission system and method disclosed by the invention, the video data, the USB 2.0 data and the USB 3.0 data can be transmitted by multiplexing a transmission channel, thereby saving the costs of cables and devices and simplifying the operation.
Description
Technical field
The present invention relates to a kind of data mixing Transmission system and method, and in particular to the mixing of usb data and video data
Transmission system and method.
Background technology
At present, all kinds of Video Applications are more and more, in the video reception such as the video sources such as camera, DVD and display, DVR
Need to transmit multitude of video data between terminal.While transmitting video data, also need to transmit other kinds of number sometimes
According to.USB is a kind of widely used interfacing to transmission data, and English is Universal Serial
Bus, is abbreviated as USB, USB interface has that transmission speed is fast, support hot plug, can be while the characteristics of connecting multiple equipment, at present
It is many between the equipment such as main frame and mouse, keyboard, printer to be attached using USB interface.USB has multiple different versions
This, wherein USB2.0 is also referred to as (High Speed) USB at a high speed, and message transmission rate is 480Mbps, using 4 pin (power supplys
VBUS, GND, a pair of differential signal lines D+ and D-), used as standard interface, a pair of differential signal lines D+ and D- are with half-duplex for plug
Mode transmits USB2.0 signals；USB3.0 is ultrahigh speed (Super Speed) USB, and message transmission rate is 5Gbps, using 9 pins
Plug increased signal ground (GND_GRAIN) and two pairs of difference letters as standard interface on the basis of 4 pin plugs of USB2.0
Number line (SSTX+, SSTX-, SSRX+, SSRX-), original a pair of differential signal lines D+ and D- are still transmitted in a half duplex manner
USB2.0 signals, two pairs of newly-increased differential signal lines transmit USB3.0 signals with full duplex mode；Bases of the USB3.1 in USB3.0
Message transmission rate is further increased on plinth, 10Gbps is reached, USB3.1 can be adopted and the pin plug of USB3.0 identicals 9.
If desired simultaneous transmission video data, USB2.0 data and USB3.0/3.1 data, prior art needs different
Transmission cable is transmitted respectively, and this transmission means can increase the power consumption of system and the cost of transmission medium, carry out according to optical fiber
Transmission, can also increase the quantity of optoelectronic transceiver device, further improve system cost.Further, with display resolution
Improve, the bandwidth increase needed for transmission video is quickly.The 4K2K vision signals day by day popularized such as are transmitted, desire bandwidth reaches
12 arrive 18Gbps.So high speed had both increased transmission cost, and transmission range is reduced again.Lacking one kind at present can be at two
USB2.0 data are transmitted between USB2.0 data terminals, while and can transmit between two USB3.0/3.1 data terminals
USB3.0/3.1 data, can also be particularly video data high definition video data and be sent to video reception end by video source
Efficient, the low cost solution at end.
The content of the invention
The technical problem to be solved is, for the video data that video source is sent to video reception terminal,
The USB2.0 data transmitted between two USB2.0 data terminals, and transmit between two USB3.0/3.1 data terminals
USB3.0/3.1 data, how multiplexing transmission passage, the problem of high efficiency of transmission.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is：
The hybrid transmission system of a kind of usb data and video data as the present invention, including the first mixed transport device,
Second mixed transport device, transmission channel；First mixed transport device and video source, a USB2.0 data terminals and first
USB3.0/3.1 data terminals are connected；Second mixed transport device and video reception terminal, the 2nd USB2.0 data terminals and the
Two USB3.0/3.1 data terminals are connected；First mixed transport device connects the second mixed transport device by transmission channel.
The transmission channel includes downlink transfer passage and upstream transmission passage；The first mixed transport device includes the
One USB2.0 interface units, a USB3.0/3.1 interface units, video are separated with usb data mixed cell, up usb data
Unit, downlink data transmitting element, upstream data receiving unit；First USB2.0 interface units are believed by a USB2.0 difference
Number line D+ and D- and a USB2.0 data terminals carry out the transmitting-receiving of USB2.0 data, by descending USB2.0 data is activations to video
With usb data mixed cell, by up USB2.0 data is activations a USB2.0 data terminals are given；First USB3.0/3.1 interfaces
Unit is by USB3.0/3.1 differential signal lines SSTX+, SSTX-, SSRX+, a SSRX- and a USB3.0/3.1 data ends
End carries out the transmitting-receiving of USB3.0/3.1 data, by descending USB3.0/3.1 data is activations to video and usb data mixed cell, will
Up USB3.0/3.1 data is activations give a USB3.0/3.1 data terminals；Video is considered oneself as in the future with usb data mixed cell
The video data in frequency source, the descending USB2.0 data from a USB2.0 interface units and from a USB3.0/3.1 interfaces
The descending USB3.0/3.1 data of unit are mixed, and are formed down mixing Data Concurrent and are given downlink data transmitting element, under
Row data transmission unit is sent to the second mixed transport device after being driven to down mixing data by downlink transfer passage；
Upstream data receiving unit receives the up USB blended datas that the second mixed transport device is sent by upstream transmission passage, and
It is sent to up usb data separative element to be separated, up USB2.0 data and up USB3.0/3.1 numbers is obtained after separation
According to, a USB2.0 interface units are given by up USB2.0 data is activations, give first by up USB3.0/3.1 data is activations
USB3.0/3.1 interface units.
The second mixed transport device includes the 2nd USB2.0 interface units, the 2nd USB3.0/3.1 interface units, regards
Frequency and usb data separative element, up usb data mixed cell, downlink data receiving unit, upstream data transmitting element；Under
Row data receipt unit receives the down mixing data sent by downlink transfer passage by the first mixed transport device, will be descending
Blended data is sent to video and is separated with usb data separative element, and video data, descending USB2.0 data are obtained after separation
With descending USB3.0/3.1 data, video data is sent to into video reception terminal, by descending USB2.0 data is activations second is given
USB2.0 interface units, by descending USB3.0/3.1 data is activations the 2nd USB3.0/3.1 interface units are given；2nd USB2.0 connects
Mouth unit carries out the transmitting-receiving of USB2.0 data by the 2nd USB2.0 differential signal line D+ and D- and the 2nd USB2.0 data terminals,
The 2nd USB2.0 data terminals are given by descending USB2.0 data is activations, and up USB2.0 data is activations are mixed to upstream data
Unit；2nd USB3.0/3.1 interface units by the 2nd USB3.0/3.1 differential signal line SSTX+, SSTX-, SSRX+,
SSRX- and the 2nd USB3.0/3.1 data terminals carry out the transmitting-receiving of USB3.0/3.1 data, and descending USB3.0/3.1 data are sent out
The 2nd USB3.0/3.1 data terminals are given, and up usb data mixed cell is given by up USB3.0/3.1 data is activations；On
Row usb data mixed cell is by from the up USB2.0 data of the 2nd USB2.0 interface units and from the 2nd USB3.0/3.1
The up USB3.0/3.1 data of interface unit are mixed, and are formed up USB blended datas and are sent to upstream data transmission
Up USB blended datas are sent to the first mixed transport device by unit, upstream data transmitting element by upstream transmission passage.
Preferably, the first mixed transport device also includes video compressing unit, connects the video source and described regards
Frequency and usb data mixed cell, for being compressed to video data, video compressing unit is using frame in or interframe compression algorithm
Video data is compressed；The second mixed transport device also includes video decompression unit, connects the video and USB
Data separating unit and the video reception terminal, for decompressing to video data, video decompression unit is using right
The frame in or inter decompression algorithm answered is decompressed to the video data after compression.
Preferably, the first mixed transport device also includes downlink data coding unit, connects the video and USB numbers
According to mixed cell and the downlink data transmitting element, for video data, descending USB2.0 data and descending USB3.0/
The blended data of 3.1 data is encoded, and coded system is that scrambler or DC balance are encoded；The second mixed transport device is also
Including downlink data decoding unit, connect the downlink data receiving unit and the video and usb data separative element, be used for
The down mixing data formed by video data, descending USB2.0 data and descending USB3.0/3.1 data after to coding are carried out
Decoding, decoding process is that descrambling code or DC balance are decoded.
Preferably, the second mixed transport device also includes upstream data coding unit, connects the up usb data
Mixed cell and the upstream data transmitting element, for the mixing to up USB2.0 data and up USB3.0/3.1 data
Data are encoded, and coded system is that scrambler or DC balance are encoded；The first mixed transport device also includes upstream data
Decoding unit, connects the upstream data receiving unit and the up usb data separative element, for after to coding by
The up USB blended datas that row USB2.0 data and up USB3.0/3.1 data are formed are decoded, and decoding process is descrambling
Code or DC balance decoding.
Preferably, in a time multiplexed way at preset timed intervals section replaces transmission and regards for the video and usb data mixed cell
Frequency evidence, descending USB2.0 data and descending USB3.0/3.1 data；Or addition identification field, by video data, descending
USB2.0 data and descending USB3.0/3.1 data are distinguished with different identification fields.
Preferably, in a time multiplexed way at preset timed intervals section alternately sends up to the up usb data mixed cell
USB2.0 data and up USB3.0/3.1 data；Or addition identification field, by up USB2.0 data and up USB3.0/
3.1 data are distinguished with different identification fields.
Preferably, the downlink data transmitting element output optical signal or electric signal：If downlink data transmitting element is exported
Optical signal, it converts electrical signals to optical signal, and by optical signal launch to downlink transfer passage, downlink transfer passage is light
Fibre, downlink data receiving unit receive optical signal, its by from downlink transfer channel reception to optical signal be converted to electric signal；If
Downlink data transmitting element exports electric signal, and electric signal is driven into downlink transfer passage by it, and downlink transfer passage is cable, under
Row data receipt unit is from downlink transfer channel reception electric signal.
Preferably, the upstream data transmitting element output optical signal or electric signal：If upstream data transmitting element is exported
Optical signal, it converts electrical signals to optical signal, and by optical signal launch to upstream transmission passage, upstream transmission passage is light
Fibre, upstream data receiving unit receives optical signal, and the optical signal received from upstream transmission passage is converted to electric signal by it；If
Upstream data transmitting element exports electric signal, and electric signal is driven into upstream transmission passage by it, and upstream transmission passage is cable, on
Row data receipt unit receives electric signal from upstream transmission passage.
And, if upstream transmission passage and downlink transfer passage are optical fiber, upstream transmission passage can with downlink transfer passage
With using each independent Optical Fiber Transmission；Or upstream transmission passage and downlink transfer passage can also common optical fiber transmission,
When transmitting on shared optical fiber, upstream transmission passage is transmitted at different wavelengths with the optical signal of downlink transfer passage.
And, if upstream transmission passage and downlink transfer passage are cable, upstream transmission passage can with downlink transfer passage
With using each independent cable transmission.
Preferably, the length of the downlink transfer passage and upstream transmission passage is all higher than the main frame that USB2.0 standards specify
The maximum 5 meters length between equipment.
Preferably, the video source, a USB2.0 data terminals and a USB3.0/3.1 data terminals are computer
The part of main frame, the video reception terminal is display, the 2nd USB2.0 data terminals and the 2nd USB3.0/
3.1 data terminals are USB device or usb hub.
Preferably, a USB2.0 data terminals and a USB3.0/3.1 data terminals can share same
USB3.0/3.1 plugs, USB2.0 differential signal lines D+, a D- and a USB3.0/3.1 differential signal line SSTX+,
SSTX-, SSRX+, SSRX- are connected with this USB3.0/3.1 plug；Or USB2.0 differential signal lines D+, a D- and
One USB3.0/3.1 differential signal lines SSTX+, SSTX-, SSRX+, SSRX- can also be connected from different USB plugs.
Preferably, the 2nd USB2.0 data terminals and the 2nd USB3.0/3.1 data terminals can share same
USB3.0/3.1 plugs, the 2nd USB2.0 differential signal lines D+, D- and the 2nd USB3.0/3.1 differential signal line SSTX+,
SSTX-, SSRX+, SSRX- are connected with this USB3.0/3.1 plug；Or the 2nd USB2.0 differential signal lines D+, D- and
Two USB3.0/3.1 differential signal lines SSTX+, SSTX-, SSRX+, SSRX- can also be connected from different USB plugs.
As the present invention a kind of usb data and video data combining transmission method, by the first mixed transport device,
Second mixed transport device and transmission channel, the transmitting video data between video source and video reception terminal, and first
USB2.0 data are transmitted between USB2.0 data terminals and the 2nd USB2.0 data terminals, in a USB3.0/3.1 data terminals
USB3.0/3.1 data are transmitted between the 2nd USB3.0/3.1 data terminals, transmission channel includes downlink transfer passage and up
Transmission channel.
The first mixed transport device is received from the video data of video source, from a USB2.0 data terminals
Descending USB2.0 data and the descending USB3.0/3.1 data from a USB3.0/3.1 data terminals are simultaneously mixed, to mixed
Closing data carries out downlink data transmission processe, and the data after process are sent to into the second mixed transport by downlink transfer passage
Device, the second mixed transport device receives the data from downlink transfer passage and carries out downlink data reception processing, after process
Obtain video data, the blended data of descending USB2.0 data and descending USB3.0/3.1 data and it is separated, separate
After obtain video data, descending USB2.0 data and descending USB3.0/3.1 data, video data is sent to into video reception end
End, by descending USB2.0 data is activations the 2nd USB2.0 data terminals are given, and by descending USB3.0/3.1 data is activations second is given
USB3.0/3.1 data terminals.
The second mixed transport device receive from the 2nd USB2.0 data terminals up USB2.0 data and from
The up USB3.0/3.1 data of the 2nd USB3.0/3.1 data terminals are simultaneously mixed, and upstream data is carried out to blended data and is sent out
Process is sent, and the data after process are sent to into the first mixed transport device, the first mixed transport dress by upstream transmission passage
Put receive from upstream transmission passage data and carry out upstream data reception processing, obtain after process up USB2.0 data and
The blended data of up USB3.0/3.1 data is simultaneously separated to it, and up USB2.0 data and up are obtained after separation
USB3.0/3.1 data, give a USB2.0 data terminals, by up USB3.0/3.1 data by up USB2.0 data is activations
It is sent to a USB3.0/3.1 data terminals.
The downlink data transmission processe has two kinds：The first is to convert electrical signals to optical signal, and optical signal is sent out
Downlink transfer passage is mapped to, now downlink transfer passage is optical fiber, and downlink data reception processing is to convert optical signals to telecommunications
Number；Second is that electric signal is suitable for into the mode of long range propagation on cable to drive downlink transfer passage, now descending biography
Defeated passage is cable, and downlink data reception processing is to receive electric signal for subsequent treatment.
The upstream data transmission processe has two kinds：The first is to convert electrical signals to optical signal, and optical signal is sent out
Upstream transmission passage is mapped to, now upstream transmission passage is optical fiber, and upstream data reception processing is to convert optical signals to telecommunications
Number；Second is that electric signal is suitable for into the mode of long range propagation on cable to drive upstream transmission passage, now up biography
Defeated passage is cable, and upstream data reception processing is to receive electric signal for subsequent treatment.
And, if upstream transmission passage and downlink transfer passage are optical fiber, upstream transmission passage can with downlink transfer passage
With using each independent Optical Fiber Transmission；Or upstream transmission passage and downlink transfer passage can also common optical fiber transmission,
When transmitting on shared optical fiber, upstream transmission passage is transmitted at different wavelengths with the optical signal of downlink transfer passage.
And, if upstream transmission passage and downlink transfer passage are cable, upstream transmission passage can with downlink transfer passage
With using each independent cable transmission.
Preferably, the first mixed transport device is received after the video data sent by video source, first to video data
It is compressed, then the video data after compression, descending USB2.0 and descending USB3.0/3.1 Data Datas is mixed, compresses
Algorithm is using frame in or interframe compression algorithm；After the second mixed transport device is separated to blended data, first to compression
Video data afterwards is decompressed, then the video data after decompression is sent to into video reception terminal, and decompression algorithm is adopted
With corresponding frame in or inter decompression algorithm.
Preferably, the first mixed transport device is by video data, descending USB2.0 data and descending USB3.0/3.1
After data are mixed, first blended data is encoded, then carry out downlink data transmission processe, coded system is scrambler or straight
Mobile equilibrium is encoded；The second mixed transport device is carried out after downlink data reception processing to data, first to decoding data,
The blended data of video data, descending USB2.0 data and descending USB3.0/3.1 data is obtained, then it is separated, decoded
Mode is that descrambling code or DC balance are decoded.
Preferably, the second mixed transport device is mixed up USB2.0 data and up USB3.0/3.1 data
After conjunction, first blended data is encoded, then carry out upstream data transmission processe, coded system is that scrambler or DC balance are compiled
Code；The first mixed transport device is carried out after upstream data reception processing to data, first to decoding data, obtains up
The blended data of USB2.0 data and up USB3.0/3.1 data, then it is separated, decoding process is descrambling code or straight
Mobile equilibrium is decoded.
Preferably, in a time multiplexed way at preset timed intervals section alternately sends video counts to the first mixed transport device
According to, descending USB2.0 data and descending USB3.0/3.1 data；Or addition identification field, by video data, descending USB2.0 numbers
According to being distinguished with different identification fields with descending USB3.0/3.1 data.
Preferably, in a time multiplexed way at preset timed intervals section alternately sends up to the second mixed transport device
USB2.0 data and up USB3.0/3.1 data；Or addition identification field, by up USB2.0 data and up USB3.0/
3.1 data are distinguished with different identification fields.
Preferably, the length of the downlink transfer passage and upstream transmission passage is all higher than the main frame that USB2.0 standards specify
The maximum 5 meters length between equipment.
Preferably, the video source, a USB2.0 data terminals and a USB3.0/3.1 data terminals are computer
The part of main frame, the video reception terminal is display, the 2nd USB2.0 data terminals and the 2nd USB3.0/
3.1 data terminals are USB device or usb hub.
Preferably, a USB2.0 data terminals and a USB3.0/3.1 data terminals can share same
USB3.0/3.1 plugs, USB2.0 differential signal lines D+, a D- and a USB3.0/3.1 differential signal line SSTX+,
SSTX-, SSRX+, SSRX- are connected with this USB3.0/3.1 plug；Or USB2.0 differential signal lines D+, a D- and
One USB3.0/3.1 differential signal lines SSTX+, SSTX-, SSRX+, SSRX- can also be connected from different USB plugs.
Preferably, the 2nd USB2.0 data terminals and the 2nd USB3.0/3.1 data terminals can share same
USB3.0/3.1 plugs, the 2nd USB2.0 differential signal lines D+, D- and the 2nd USB3.0/3.1 differential signal line SSTX+,
SSTX-, SSRX+, SSRX- are connected with this USB3.0/3.1 plug；Or the 2nd USB2.0 differential signal lines D+, D- and
Two USB3.0/3.1 differential signal lines SSTX+, SSTX-, SSRX+, SSRX- can also be connected from different USB plugs.
The invention has the beneficial effects as follows：
The hybrid transmission system and method for a kind of usb data of the present invention and video data, to video data, USB2.0 data
Mixed with USB3.0/3.1 data so as to which reusable transmission channel is transmitted, saved cable and components and parts cost, letter
Operation.
Description of the drawings
Fig. 1 is a kind of integral module figure of the hybrid transmission system of usb data of the present invention and video data
Fig. 2 be usb data of the present invention and video data hybrid transmission system in the first mixed transport device one kind in
Portion's functional module and external signal connection figure
Fig. 3 be usb data of the present invention and video data hybrid transmission system in the second mixed transport device one kind in
Portion's functional module and external signal connection figure
Fig. 4 is another kind of integral module figure of the hybrid transmission system of usb data of the present invention and video data
Fig. 5 be usb data of the present invention and video data hybrid transmission system in the first mixed transport device another kind
Inner function module and external signal connection figure
Fig. 6 be usb data of the present invention and video data hybrid transmission system in the second mixed transport device another kind
Inner function module and external signal connection figure
Fig. 7 be usb data of the present invention and video data hybrid transmission system in video and usb data mixed cell with when
At preset timed intervals section alternately sends the mixed of video data, descending USB2.0 data and descending USB3.0/3.1 data to divide multiplex mode
Conjunction mode
Fig. 8 be usb data of the present invention and video data hybrid transmission system in video and usb data mixed cell add
Identification field, video data, descending USB2.0 data and descending USB3.0/3.1 data are distinguished with different identification field
Hybrid mode
Fig. 9 be usb data of the present invention and video data hybrid transmission system in up usb data mixed cell with the time-division
At preset timed intervals section replaces the hybrid mode for sending up USB2.0 data and up USB3.0/3.1 data to multiplex mode
Figure 10 be usb data of the present invention and video data hybrid transmission system in the addition of up usb data mixed cell
Identification field, the hybrid mode that up USB2.0 data and up USB3.0/3.1 data are distinguished with different identification field
Wherein：
The mixed transport device of 1 first mixed transport device 2 second
3 transmission channels
4 the oneth USB3.0/3.1 data terminals
The video source of 5 the 2nd USB3.0/3.1 data terminals 6
The USB2.0 data terminals of 7 video reception terminal 8 the oneth
The video compressing unit of 9 the 2nd USB2.0 data terminals 11
12 the oneth USB2.0 interface units
13 videos and the downlink data transmitting element of usb data mixed cell 14
The downlink data coding unit of 15 upstream data receiving unit 16
17 upstream data decoding units
18 up usb data separative elements
The video decompression unit of a 19 USB3.0/3.1 interface units 21
22 the 2nd USB2.0 interface units
23 videos and the downlink data receiving unit of usb data separative element 24
The downlink data decoding unit of 25 upstream data transmitting element 26
27 upstream data coding units
28 up usb data mixed cells
29 the 2nd USB3.0/3.1 interface units
The upstream transmission passage of 31 downlink transfer passage 32
401 the oneth USB3.0/3.1 differential signal lines
501 the 2nd USB3.0/3.1 differential signal lines
801 the oneth USB2.0 differential signal lines
901 the 2nd USB2.0 differential signal lines
Specific embodiment
Below, with reference to the embodiment in accompanying drawing to the hybrid transmission system of a kind of usb data of the invention and video data and
Method is further described.
As shown in figure 1, the hybrid transmission system of the Application Example of the present invention, a kind of usb data and video data, this is
System includes the first mixed transport device 1, the second mixed transport device 2, transmission channel 3；First mixed transport device 1 and video source
6th, a USB2.0 data terminals 8 are connected with a USB3.0/3.1 data terminals 4, and the second mixed transport device 2 connects with video
Receive terminal 7, the 2nd USB2.0 data terminals 9 to be connected with the 2nd USB3.0/3.1 data terminals 5, the first mixed transport device 1 leads to
Cross transmission channel 3 and connect the second mixed transport device 2；The transmission channel 3 includes that downlink transfer passage 31 and uplink are logical
Road 32, downlink transfer passage 31 and upstream transmission passage 32 share cable transmission；The video source 6, a USB2.0 data ends
The USB3.0/3.1 data terminals 4 of end 8 and the are the part of main frame, and the video reception terminal 7 is display,
The 2nd USB2.0 data terminals 9 and the 2nd USB3.0/3.1 data terminals 5 are USB devices, such as keyboard, mouse, camera,
USB flash disk, audio input-output device etc., or usb hub.
As shown in Fig. 2 the first mixed transport device 1 includes：First USB2.0 interface units 12, a USB3.0/
3.1 interface units 19, video and usb data mixed cell 13, up usb data separative element 18, downlink data transmitting element
14th, upstream data receiving unit 15；First USB2.0 interface units 12 pass through a USB2.0 differential signal lines 801 and first
USB2.0 data terminals 8 carry out the transmitting-receiving of USB2.0 data, and descending USB2.0 data is activations are mixed into single with usb data to video
Unit 13, by up USB2.0 data is activations a USB2.0 data terminals 8 are given；First USB3.0/3.1 interface units 19 are by the
One USB3.0/3.1 differential signal lines 401 and a USB3.0/3.1 data terminals 4 carry out the transmitting-receiving of USB3.0/3.1 data, will
Descending USB3.0/3.1 data is activations to video and usb data mixed cell 13, by up USB3.0/3.1 data is activations to the
One USB3.0/3.1 data terminals 4；Video is with usb data mixed cell 13 by from the video data of video source 6, from first
The descending USB2.0 data of USB2.0 interface units 12 and the descending USB3.0/ from a USB3.0/3.1 interface units 19
3.1 data are mixed, and hybrid mode is in a time multiplexed way at preset timed intervals section alternately sends video data, descending
USB2.0 data and descending USB3.0/3.1 data, or addition identification field, by video data, descending USB2.0 data and descending
USB3.0/3.1 data are distinguished with different identification fields, down mixing Data Concurrent is formed after mixing and gives downlink data
Is sent to after sending unit 14, downlink data transmitting element 14 to be driven down mixing data by downlink transfer passage 31
Two mixed transport devices 2；Upstream data receiving unit 15 is received the second mixed transport device 2 and is sent by upstream transmission passage 32
Up USB blended datas, and be sent to up usb data separative element 18 and separated, up USB2.0 is obtained after separation
Data and up USB3.0/3.1 data, by up USB2.0 data is activations a USB2.0 interface units 12 are given, will be up
USB3.0/3.1 data is activations give a USB3.0/3.1 interface units 19.
First mixed transport device 1 also includes video compressing unit 11, connects the video source 6 and the video and USB
Data mixing unit 13, for being compressed to video data, compression algorithm is using frame in or interframe compression algorithm.Frame data compression
Algorithm is only compressed using the information of a frame in, and compression time delay is low, needs buffer memory capacity little, but compression multiple is relatively low；And frame
Between compression algorithm using many frame ins information, inter prediction can be carried out, compared with frame data compression algorithm, interframe compression algorithm pressure
Contracting time delay is high, needs buffer memory capacity big, but compression multiple is higher.The frame data compression algorithm that can be used in this application embodiment includes
But it is not limited to JPEG, JPEG2000, JPEG-LS, JPEG-XR, Dirac, VC-2 and frame data compression portion H.264 or H.265
Point.The interframe compression algorithm that can be used in this application embodiment include but is not limited to MPEG, MPEG2, MPEG4, H.264 and
H.265.Video data is compressed before transmission can effectively reduce required transmission bandwidth, extend transmission distance, and reduce passing
Defeated cost.
First mixed transport device 1 also includes downlink data coding unit 16, connects the video and mixes single with usb data
Unit 13 and the downlink data transmitting element 14, for video data, descending USB2.0 data and descending USB3.0/3.1 numbers
According to blended data encoded, coded system is that scrambler or DC balance are encoded.Can be made using scrambler or DC balance coding
0 and 1 number is equal or close equal in data so that the DC component of signal keeps constant or near in data transmission procedure
Like constant, in order to recover clock and data in receiving terminal.The DC balance coding that can be used in this application embodiment includes
But it is not limited to 4B5B, 8B10B, 64B66B and 128B132B coding.Scrambler used in this application embodiment can be, but not limited to
Realized using linear feedback shift register.
First mixed transport device 1 also includes upstream data decoding unit 17, connects the upstream data receiving unit 15
With the up usb data separative element 18, for after to coding by up USB2.0 data and up USB3.0/3.1 numbers
Decoded according to the up USB blended datas for being formed, decoding process is that descrambling code or DC balance are decoded.
Downlink transfer passage 31 is optical fiber, and downlink data transmitting element 14 exports optical signal, and it converts electrical signals to light
Signal, and by optical signal launch to downlink transfer passage 31.
Upstream transmission passage 32 is optical fiber, and upstream data receiving unit 15 receives optical signal, and it will be from upstream transmission passage
32 optical signals for receiving are converted to electric signal.
As shown in figure 3, the second mixed transport device 2 includes：2nd USB2.0 interface units 22, the 2nd USB3.0/
3.1 interface units 29, video and usb data separative element 23, up usb data mixed cell 28, downlink data receiving unit
24th, upstream data transmitting element 25；Downlink data receiving unit 24 is received and led to by downlink transfer by the first mixed transport device 1
The down mixing data that road 31 sends, down mixing data is activation is separated to video with usb data separative element 23, point
Video data, descending USB2.0 data and descending USB3.0/3.1 data are obtained after, video data is sent to into video reception
Terminal 7, by descending USB2.0 data is activations the 2nd USB2.0 interface units 22 are given, by descending USB3.0/3.1 data is activations to the
Two USB3.0/3.1 interface units 29；2nd USB2.0 interface units 22 pass through the 2nd USB2.0 differential signal lines 901 and second
USB2.0 data terminals 9 carry out the transmitting-receiving of USB2.0 data, and by descending USB2.0 data is activations the 2nd USB2.0 data terminals are given
9, and give up usb data mixed cell 28 by up USB2.0 data is activations；2nd USB3.0/3.1 interface units 29 pass through
2nd USB3.0/3.1 differential signal lines 501 and the 2nd USB3.0/3.1 data terminals 5 carry out the transmitting-receiving of USB3.0/3.1 data,
The 2nd USB3.0/3.1 data terminals 5 are given by descending USB3.0/3.1 data is activations, and by up USB3.0/3.1 data is activations
To up usb data mixed cell 28；Up usb data mixed cell 28 is by from the up of the 2nd USB2.0 interface units 22
USB2.0 data and the up USB3.0/3.1 data from the 2nd USB3.0/3.1 interface units 29 are mixed, hybrid mode
For in a time multiplexed way at preset timed intervals section alternately sends up USB2.0 data and up USB3.0/3.1 data, or addition
Identification field, up USB2.0 data and up USB3.0/3.1 data is distinguished with different identification fields, shape after mixing
Into up USB blended datas and it is sent to upstream data transmitting element 25, upstream data transmitting element 25 is by up USB mixed number
The first mixed transport device 1 is sent to according to by upstream transmission passage 32.
Second mixed transport device 2 also includes video decompression unit 21, connects the video and usb data separative element
23 and the video reception terminal 7, for decompressing to video data, decompression algorithm is using corresponding with compression algorithm
Frame in or inter decompression algorithm.
Second mixed transport device 2 also includes downlink data decoding unit 26, connects the downlink data receiving unit 24
With the video and usb data separative element 23, for after to coding by video data, descending USB2.0 data and descending
The down mixing decoding data that USB3.0/3.1 data are formed, decoding process is that descrambling code or DC balance are decoded.
Second mixed transport device 2 also includes upstream data coding unit 27, connects the up usb data mixed cell
28 and the upstream data transmitting element 25, for the blended data to up USB2.0 data and up USB3.0/3.1 data
Encoded, coded system is that scrambler or DC balance are encoded.
Downlink transfer passage 31 is optical fiber, and downlink data receiving unit 24 receives optical signal, and it will be from downlink transfer passage
31 optical signals for receiving are converted to electric signal.
Upstream transmission passage 32 is optical fiber, and upstream data transmitting element 25 exports optical signal, and it converts electrical signals to light
Signal, and by optical signal launch to upstream transmission passage 32.
Upstream transmission passage 32 and downlink transfer passage 31 on shared optical fiber, upstream transmission passage 32 and downlink transfer
The optical signal of passage 31 is transmitted at different wavelengths.
Main frame that the length of downlink transfer passage 31 and upstream transmission passage 32 specify more than USB2.0 standards and equipment it
Between maximum 5 meters of length.
As shown in figure 4, the hybrid transmission system of the Application Example of the present invention, another kind of usb data and video data, should
System includes the first mixed transport device 1, the second mixed transport device 2, transmission channel 3；First mixed transport device 1 and video
Source 6, a USB2.0 data terminals 8 are connected with a USB3.0/3.1 data terminals 4, the second mixed transport device 2 and video
Receiving terminal 7, the 2nd USB2.0 data terminals 9 are connected with the 2nd USB3.0/3.1 data terminals 5, the first mixed transport device 1
Second mixed transport device 2 is connected by transmission channel 3；The transmission channel 3 includes downlink transfer passage 31 and uplink
Passage 32, downlink transfer passage 31 and upstream transmission passage 32 use each independent cable transmission；The video source 6, first
The USB3.0/3.1 data terminals 4 of USB2.0 data terminals 8 and for main frame part, the video reception end
End 7 is display, and the 2nd USB2.0 data terminals 9 and the 2nd USB3.0/3.1 data terminals 5 are USB devices, such as keyboard,
Mouse, camera, USB flash disk, audio input-output device etc., or usb hub.
As shown in figure 5, the first mixed transport device 1 includes：First USB2.0 interface units 12, a USB3.0/
3.1 interface units 19, video and usb data mixed cell 13, up usb data separative element 18, downlink data transmitting element
14th, upstream data receiving unit 15；First USB2.0 interface units 12 pass through a USB2.0 differential signal lines 801 and first
USB2.0 data terminals 8 carry out the transmitting-receiving of USB2.0 data, and descending USB2.0 data is activations are mixed into single with usb data to video
Unit 13, by up USB2.0 data is activations a USB2.0 data terminals 8 are given；First USB3.0/3.1 interface units 19 are by the
One USB3.0/3.1 differential signal lines 401 and a USB3.0/3.1 data terminals 4 carry out the transmitting-receiving of USB3.0/3.1 data, will
Descending USB3.0/3.1 data is activations to video and usb data mixed cell 13, by up USB3.0/3.1 data is activations to the
One USB3.0/3.1 data terminals 4；Video is with usb data mixed cell 13 by from the video data of video source 6, from first
The descending USB2.0 data of USB2.0 interface units 12 and the descending USB3.0/ from a USB3.0/3.1 interface units 19
3.1 data are mixed, and hybrid mode is in a time multiplexed way at preset timed intervals section alternately sends video data, descending
USB2.0 data and descending USB3.0/3.1 data, or addition identification field, by video data, descending USB2.0 data and descending
USB3.0/3.1 data are distinguished with different identification fields, down mixing Data Concurrent is formed after mixing and gives downlink data
Is sent to after sending unit 14, downlink data transmitting element 14 to be driven down mixing data by downlink transfer passage 31
Two mixed transport devices 2；Upstream data receiving unit 15 is received the second mixed transport device 2 and is sent by upstream transmission passage 32
Up USB blended datas, and be sent to up usb data separative element 18 and separated, up USB2.0 is obtained after separation
Data and up USB3.0/3.1 data, by up USB2.0 data is activations a USB2.0 interface units 12 are given, will be up
USB3.0/3.1 data is activations give a USB3.0/3.1 interface units 19.
First mixed transport device 1 also includes video compressing unit 11, connects the video source 6 and the video and USB
Data mixing unit 13, for being compressed to video data, compression algorithm is using frame in or interframe compression algorithm.Frame data compression
Algorithm is only compressed using the information of a frame in, and compression time delay is low, needs buffer memory capacity little, but compression multiple is relatively low；And frame
Between compression algorithm using many frame ins information, inter prediction can be carried out, compared with frame data compression algorithm, interframe compression algorithm pressure
Contracting time delay is high, needs buffer memory capacity big, but compression multiple is higher.The frame data compression algorithm that can be used in this application embodiment includes
But it is not limited to JPEG, JPEG2000, JPEG-LS, JPEG-XR, Dirac, VC-2 and frame data compression portion H.264 or H.265
Point.The interframe compression algorithm that can be used in this application embodiment include but is not limited to MPEG, MPEG2, MPEG4, H.264 and
H.265.Video data is compressed before transmission can effectively reduce required transmission bandwidth, extend transmission distance, and reduce passing
Defeated cost.
First mixed transport device 1 also includes downlink data coding unit 16, connects the video and mixes single with usb data
Unit 13 and the downlink data transmitting element 14, for video data, descending USB2.0 data and descending USB3.0/3.1 numbers
According to blended data encoded, coded system is that scrambler or DC balance are encoded.Can be made using scrambler or DC balance coding
0 and 1 number is equal or close equal in data so that the DC component of signal keeps constant or near in data transmission procedure
Like constant, in order to recover clock and data in receiving terminal.The DC balance coding that can be used in this application embodiment includes
But it is not limited to 4B5B, 8B10B, 64B66B and 128B132B coding.Scrambler used in this application embodiment can be, but not limited to
Realized using linear feedback shift register.
First mixed transport device 1 also includes upstream data decoding unit 17, connects the upstream data receiving unit 15
With the up usb data separative element 18, for after to coding by up USB2.0 data and up USB3.0/3.1 numbers
Decoded according to the up USB blended datas for being formed, decoding process is that descrambling code or DC balance are decoded.
Downlink transfer passage 31 is optical fiber or cable：If downlink transfer passage 31 is optical fiber, downlink data transmitting element 14
Output optical signal, it converts electrical signals to optical signal, and by optical signal launch to downlink transfer passage 31；If downlink transfer is led to
Road 31 is cable, and downlink data transmitting element 14 exports electric signal, and electric signal is driven into downlink transfer passage 31 by it.
Upstream transmission passage 32 is optical fiber or cable：If upstream transmission passage 32 is optical fiber, upstream data receiving unit 15
Optical signal is received, the optical signal received from upstream transmission passage 32 is converted to electric signal by it；If upstream transmission passage 32 is
Cable, upstream data receiving unit 15 receives electric signal from upstream transmission passage 32.
As shown in fig. 6, the second mixed transport device 2 includes：2nd USB2.0 interface units 22, the 2nd USB3.0/
3.1 interface units 29, video and usb data separative element 23, up usb data mixed cell 28, downlink data receiving unit
24th, upstream data transmitting element 25；Downlink data receiving unit 24 is received and led to by downlink transfer by the first mixed transport device 1
The down mixing data that road 31 sends, down mixing data is activation is separated to video with usb data separative element 23, point
Video data, descending USB2.0 data and descending USB3.0/3.1 data are obtained after, video data is sent to into video reception
Terminal 7, by descending USB2.0 data is activations the 2nd USB2.0 interface units 22 are given, by descending USB3.0/3.1 data is activations to the
Two USB3.0/3.1 interface units 29；2nd USB2.0 interface units 22 pass through the 2nd USB2.0 differential signal lines 901 and second
USB2.0 data terminals 9 carry out the transmitting-receiving of USB2.0 data, and by descending USB2.0 data is activations the 2nd USB2.0 data terminals are given
9, and give up usb data mixed cell 28 by up USB2.0 data is activations；2nd USB3.0/3.1 interface units 29 pass through
2nd USB3.0/3.1 differential signal lines 501 and the 2nd USB3.0/3.1 data terminals 5 carry out the transmitting-receiving of USB3.0/3.1 data,
The 2nd USB3.0/3.1 data terminals 5 are given by descending USB3.0/3.1 data is activations, and by up USB3.0/3.1 data is activations
To up usb data mixed cell 28；Up usb data mixed cell 28 is by from the up of the 2nd USB2.0 interface units 22
USB2.0 data and the up USB3.0/3.1 data from the 2nd USB3.0/3.1 interface units 29 are mixed, hybrid mode
For in a time multiplexed way at preset timed intervals section alternately sends up USB2.0 data and up USB3.0/3.1 data, or addition
Identification field, up USB2.0 data and up USB3.0/3.1 data is distinguished with different identification fields, shape after mixing
Into up USB blended datas and it is sent to upstream data transmitting element 25, upstream data transmitting element 25 is by up USB mixed number
The first mixed transport device 1 is sent to according to by upstream transmission passage 32.
Second mixed transport device 2 also includes video decompression unit 21, connects the video and usb data separative element
23 and the video reception terminal 7, for decompressing to video data, decompression algorithm is using corresponding with compression algorithm
Frame in or inter decompression algorithm.
Second mixed transport device 2 also includes downlink data decoding unit 26, connects the downlink data receiving unit 24
With the video and usb data separative element 23, for after to coding by video data, descending USB2.0 data and descending
The down mixing decoding data that USB3.0/3.1 data are formed, decoding process is that descrambling code or DC balance are decoded.
Second mixed transport device 2 also includes upstream data coding unit 27, connects the up usb data mixed cell
28 and the upstream data transmitting element 25, for the blended data to up USB2.0 data and up USB3.0/3.1 data
Encoded, coded system is that scrambler or DC balance are encoded.
Downlink transfer passage 31 is optical fiber or cable：If downlink transfer passage 31 is optical fiber, downlink data receiving unit 24
Optical signal is received, the optical signal received from downlink transfer passage 31 is converted to electric signal by it；If downlink transfer passage 31 is
Cable, downlink data receiving unit 24 receives electric signal from downlink transfer passage 31.
Upstream transmission passage 32 is optical fiber or cable：If upstream transmission passage 32 is optical fiber, upstream data transmitting element 25
Output optical signal, it converts electrical signals to optical signal, and by optical signal launch to upstream transmission passage 32；If uplink is led to
Road 32 is cable, and upstream data transmitting element 25 exports electric signal, and electric signal is driven into upstream transmission passage 32 by it.
Main frame that the length of downlink transfer passage 31 and upstream transmission passage 32 specify more than USB2.0 standards and equipment it
Between maximum 5 meters of length.
An above-mentioned USB2.0 differential signal lines 801 and the 2nd USB2.0 differential signal lines 901 include signal D+ and D-.
An above-mentioned USB3.0/3.1 differential signal lines 401 and the 2nd USB3.0/3.1 differential signal lines 501 include signal SSTX+,
SSTX-、SSRX+、SSRX-。
USB has multiple different editions, and wherein USB2.0 is also referred to as (High Speed) USB at a high speed, message transmission rate
For 480Mbps, using 4 pins (power supply VBUS, GND, a pair of differential signal lines D+ and D-), plug is used as standard interface, and a pair poor
Sub-signal line D+ and D- transmit in a half duplex manner USB2.0 signals；USB3.0 be ultrahigh speed (Super Speed) USB, data
Transfer rate is 5Gbps, using 9 pin plugs as standard interface, on the basis of 4 pin plugs of USB2.0 signal ground is increased
(GND_GRAIN) and two pairs of differential signal lines (SSTX+, SSTX-, SSRX+, SSRX-), original a pair of differential signal lines D+ and
D- still transmits in a half duplex manner USB2.0 signals, and two pairs of newly-increased differential signal lines are with full duplex mode transmission USB3.0 letters
Number；USB3.1 further increases message transmission rate on the basis of USB3.0, reaches 10Gbps, USB3.1 can adopt with
The pin plug of USB3.0 identicals 9.
An above-mentioned USB2.0 data terminals 8 and a USB3.0/3.1 data terminals 4 can share same USB3.0/
3.1 plugs, signal D+, D- and a USB3.0/3.1 differential signal lines that at this moment a USB2.0 differential signal lines 801 include
401 signal SSTX+, SSTX-, SSRX+, SSRX- for including are connected with this USB3.0/3.1 plug；Or a USB2.0
Signal SSTX+ that signal D+, D- and a USB3.0/3.1 differential signal lines that differential signal line 801 includes includes, SSTX-,
SSRX+, SSRX- can also be connected from different USB plugs.
Above-mentioned 2nd USB2.0 data terminals 9 and the 2nd USB3.0/3.1 data terminals 5 can also share same
USB3.0/3.1 plugs, signal D+, D- and the 2nd USB3.0/3.1 difference that at this moment the 2nd USB2.0 differential signal lines 901 include
Signal SSTX+, SSTX-, SSRX+, SSRX- that holding wire 501 includes is connected with this USB3.0/3.1 plug；Or second
The signal SSTX that signal D+, D- and the 2nd USB3.0/3.1 differential signal lines 501 that USB2.0 differential signal lines 901 include includes
+, SSTX-, SSRX+, SSRX- can also from different USB plugs be connected.
Fig. 7 is a kind of implementation of video and the blended data of usb data mixed cell 13, in this method, video and USB
In a time multiplexed way at preset timed intervals section alternately sends video data, descending USB2.0 data and descending to data mixing unit 13
USB3.0/3.1 data.Video and usb data mixed cell 13 are by video data, descending USB2.0 data and descending USB3.0/
3.1 data are respectively divided into block of video data, descending USB2.0 data blocks and descending USB3.0/3.1 numbers according to default length
According to block, and alternately send in the default time period.V1 in Fig. 7, V2 ..., Vi, U1, U2 ..., Uj, and S1, S2 ..., Sk
It is that, by the time period of timer timing, this i+j+k time period is sending video data, descending USB2.0 data and descending
Move in circles during USB3.0/3.1 data, the value of i, j, k can keep identical in circulation every time, it is also possible to by pre-
If mode is adjusted.Video and usb data mixed cell 13 V1, V2 ..., in the Vi common i time period, i video data of transmission
Block；U1, U2 ..., in the Uj common j time period, send j descending USB2.0 data block；S1, S2 ..., the Sk common k times
In section, k descending USB3.0/3.1 data block is sent.Video also can will send block of video data with usb data mixed cell 13
I time period, send descending USB2.0 data blocks j time period and when k of the descending USB3.0/3.1 data blocks of transmission
Between section carry out permutation and combination by predetermined manner.Video and usb data mixed cell 13 and video and usb data separative element 23 are all
Include timer, video inserts synchronization field with usb data mixed cell 13 in down mixing data, for synchronization video
With the timer in usb data mixed cell 13 and video and usb data separative element 23.Video and usb data mixed cell
13 initialize its timer after insertion synchronization field, then send block of video data, descending USB2.0 by the default time period
Data block and descending USB3.0/3.1 data blocks.Video is initialized with usb data separative element 23 after synchronization field is detected
Its timer, then receives block of video data, descending USB2.0 data blocks and descending USB3.0/3.1 numbers by the default time period
According to block.
Fig. 8 is another kind of implementation of video and the blended data of usb data mixed cell 13, in this method, video with
Usb data mixed cell 13 add identification field, by video data, descending USB2.0 data and descending USB3.0/3.1 data with
Different identification field is distinguished.Vh is video data identification field in Fig. 8, and V is video data, and Uh is descending USB2.0 data mark
Character learning section, U is descending USB2.0 data, and Sh is descending USB3.0/3.1 data identification fields, and S is descending USB3.0/3.1 numbers
According to, data type information is included in Vh, Uh and Sh, data length information to preset in advance or can be included in Vh, Uh and Sh.Depending on
Frequency detects Vh and is followed by receiving video data with usb data separative element 23, detects Uh and is followed by accepting row USB2.0 data, detects
It is followed by accepting row USB3.0/3.1 data to Sh.
Fig. 9 is a kind of implementation of the up blended data of usb data mixed cell 28, in this method, up usb data
In a time multiplexed way at preset timed intervals section alternately sends up USB2.0 data and up USB3.0/3.1 numbers to mixed cell 28
According to.Up usb data mixed cell 28 is by up USB2.0 data and up USB3.0/3.1 data according to default length point
Up USB2.0 data blocks and up USB3.0/3.1 data blocks are not divided into, and are alternately sent in the default time period.Fig. 9
Middle U1, U2 ..., Un and S1, S2 ..., Sm be by the time period of timer timing, this n+m time period send it is up
Move in circles during USB2.0 data and up USB3.0/3.1 data, the value of n and m can keep in circulation every time
It is identical, it is also possible to adjust by predetermined manner.Up usb data mixed cell 28 U1, U2 ..., in the Un common n time period, send out
Send n up USB2.0 data block；S1, S2 ..., in the Sm common m time period, send m up USB3.0/3.1 data block.
Up usb data mixed cell 28 also can will send the n time period of up USB2.0 data blocks and send up USB3.0/
The m time period of 3.1 data blocks carries out permutation and combination by predetermined manner.Up usb data mixed cell 28 and up usb data
Separative element 18 all includes timer, and up usb data mixed cell 28 inserts synchronization character in up USB blended datas
Section, for the timer in uplink synchronization usb data mixed cell 28 and up usb data separative element 18.Up usb data
Mixed cell 28 initializes its timer after insertion synchronization field, then sends up USB2.0 data by the default time period
Block and up USB3.0/3.1 data blocks.Up usb data separative element 18 initializes its timing after synchronization field is detected
Device, then receives up USB2.0 data blocks and up USB3.0/3.1 data blocks by the default time period.
Figure 10 is another kind of implementation of the up blended data of usb data mixed cell 28, in this method, up USB
Data mixing unit 28 adds identification field, by up USB2.0 data and up USB3.0/3.1 data with different identification field
Distinguish.Uh is up USB2.0 data identification fields in Figure 10, and U is up USB2.0 data, and Sh is up USB3.0/3.1
Data identification field, S is up USB3.0/3.1 data, and data type information is included in Uh and Sh, and data length information can be
Preset in advance or be included in Uh and Sh.Up usb data separative element 18 is detected and receive after Uh up USB2.0 data, inspection
Measure and receive after Sh up USB3.0/3.1 data.
The hybrid transmission system and method for a kind of usb data of the present invention and video data, to video data, USB2.0 data
Mixed with USB3.0/3.1 data so as to which reusable transmission channel is transmitted, saved cable and components and parts cost, letter
Operation.
The above is only the preferred embodiment of the present invention, not to any restriction in protection scope of the present invention,
The protection domain of present invention request should be defined by the content described in claims, every technical spirit according to the present invention
Any simple change, equivalent or the decomposition made to above-mentioned specific embodiment merges, and still falls within request of the present invention
Within the scope of protection.
Claims (40)
1. a kind of hybrid transmission system of usb data and video data, including the first mixed transport device (1), the second mixing are passed
Defeated device (2), transmission channel (3)；First mixed transport device (1) and video source (6), a USB2.0 data terminals (8) and
First USB3.0/3.1 data terminals (4) are connected；Second mixed transport device (2) and video reception terminal (7), the 2nd USB2.0
Data terminal (9) is connected with the 2nd USB3.0/3.1 data terminals (5)；First mixed transport device (1) is by transmission channel (3)
Connect the second mixed transport device (2)；It is characterized in that：
The transmission channel (3) includes downlink transfer passage (31) and upstream transmission passage (32)；
The first mixed transport device (1) includes：Video compressing unit (11), a USB2.0 interface units (12), first
It is USB3.0/3.1 interface units (19), video and usb data mixed cell (13), up usb data separative element (18), descending
Data transmission unit (14), upstream data receiving unit (15)；Video compressing unit (11) receives the video from video source (6)
Data, are compressed to video data, and the video data after compression is sent to into video and usb data mixed cell (13)；
First USB2.0 interface units (12) carry out the transmitting-receiving of USB2.0 data with a USB2.0 data terminals (8), will be descending
Up USB2.0 data is activations are given a USB2.0 numbers by USB2.0 data is activations to video and usb data mixed cell (13)
According to terminal (8)；First USB3.0/3.1 interface units (19) carry out USB3.0/3.1 with a USB3.0/3.1 data terminals (4)
The transmitting-receiving of data, by descending USB3.0/3.1 data is activations to video and usb data mixed cell (13), by up USB3.0/
3.1 data is activations give a USB3.0/3.1 data terminals (4)；Video will be from video pressure with usb data mixed cell (13)
The compressed video data of contracting unit (11), the descending USB2.0 data from a USB2.0 interface units (12) and from first
The descending USB3.0/3.1 data of USB3.0/3.1 interface units (19) are mixed in a time multiplexed way and are inserted synchronization character
Section, forms down mixing data, and video contains timer with usb data mixed cell (13), initial after insertion synchronization field
Change its timer, then by the default time period by compressed video data, descending USB2.0 data and descending USB3.0/3.1 numbers
According to downlink data transmitting element (14) is sent to, downlink data transmitting element (14) passes through after being driven to down mixing data
Downlink transfer passage (31) is sent to the second mixed transport device (2)；Upstream data receiving unit (15) receives the second mixing and passes
The up USB blended datas that defeated device (2) is sent by upstream transmission passage (32), and it is single to be sent to up usb data separation
First (18) are separated, and up USB2.0 data and up USB3.0/3.1 data are obtained after separation, by up USB2.0 data
A USB2.0 interface units (12) are sent to, by up USB3.0/3.1 data is activations a USB3.0/3.1 interface units are given
(19)；
The second mixed transport device (2) includes：Video decompression unit (21), the 2nd USB2.0 interface units (22),
Two USB3.0/3.1 interface units (29), video and usb data separative element (23), up usb data mixed cell (28), under
Row data receipt unit (24), upstream data transmitting element (25)；Downlink data receiving unit (24) is received and passed by the first mixing
The down mixing data that defeated device (1) is sent by downlink transfer passage (31), by down mixing data is activation to video and USB
Data separating unit (23), video contains timer with usb data separative element (23), initializes after synchronization field is detected
Its timer, then by the default time period receive down mixing data in compressed video data, descending USB2.0 data and
Descending USB3.0/3.1 data, so as to by down mixing data separating, obtain compressed video data, descending USB2.0 numbers after separation
According to descending USB3.0/3.1 data, compressed video data is sent to into video decompression unit (21), by descending USB2.0 numbers
According to the 2nd USB2.0 interface units (22) are sent to, by descending USB3.0/3.1 data is activations the 2nd USB3.0/3.1 interface lists are given
First (29)；Video decompression unit (21) is decompressed to compressed video data, and the video data after decompression is sent
Give video reception terminal (7)；2nd USB2.0 interface units (22) carry out USB2.0 data with the 2nd USB2.0 data terminals (9)
Transmitting-receiving, give the 2nd USB2.0 data terminals (9) by descending USB2.0 data is activations, and by up USB2.0 data is activations to upper
Row usb data mixed cell (28)；2nd USB3.0/3.1 interface units (29) enter with the 2nd USB3.0/3.1 data terminals (5)
The transmitting-receiving of row USB3.0/3.1 data, by descending USB3.0/3.1 data is activations the 2nd USB3.0/3.1 data terminals (5) are given, and
Up usb data mixed cell (28) is given by up USB3.0/3.1 data is activations；Up usb data mixed cell (28) is in the future
From the up USB2.0 data of the 2nd USB2.0 interface units (22) and from the upper of the 2nd USB3.0/3.1 interface units (29)
Row USB3.0/3.1 data are mixed, and are formed up USB blended datas and are sent to upstream data transmitting element (25), up
Up USB blended datas are sent to the first mixed transport device by data transmission unit (25) by upstream transmission passage (32)
(1)。
2. the hybrid transmission system of a kind of usb data according to claim 1 and video data, it is characterised in that：
The video compressing unit (11) is compressed using frame data compression algorithm to video data；
The video decompression unit (21) is decompressed using corresponding frame in decompression algorithm to the video data after compression
Contracting.
3. the hybrid transmission system of a kind of usb data according to claim 1 and video data, it is characterised in that：
The video compressing unit (11) is compressed using interframe compression algorithm to video data；
The video decompression unit (21) is decompressed using corresponding inter decompression algorithm to the video data after compression
Contracting.
4. the hybrid transmission system of a kind of usb data according to claim 1 and video data, it is characterised in that：
The first mixed transport device (1) also includes downlink data coding unit (16), connects the video and mixes with usb data
Unit (13) and the downlink data transmitting element (14) are closed, to video data, descending USB2.0 data and descending USB3.0/
The blended data of 3.1 data is encoded；
The second mixed transport device (2) also includes downlink data decoding unit (26), connects the downlink data and receives single
First (24) and the video and usb data separative element (23), to coding after by video data, descending USB2.0 data and under
The down mixing decoding data that row USB3.0/3.1 data are formed.
5. the hybrid transmission system of a kind of usb data according to claim 4 and video data, it is characterised in that：
For scrambler, the downlink data decoding unit (26) adopts the coded system that the downlink data coding unit (16) adopts
Decoding process be descrambling code.
6. the hybrid transmission system of a kind of usb data according to claim 4 and video data, it is characterised in that：
The coded system that the downlink data coding unit (16) adopts is DC balance coding, the downlink data decoding unit
(26) decoding process for adopting is DC balance decoding.
7. the hybrid transmission system of a kind of usb data according to claim 1 and video data, it is characterised in that：
The second mixed transport device (2) also includes upstream data coding unit (27), connects the up usb data mixing
Unit (28) and the upstream data transmitting element (25), the mixing to up USB2.0 data and up USB3.0/3.1 data
Data are encoded；
The first mixed transport device (1) also includes upstream data decoding unit (17), connects the upstream data and receives single
First (15) and the up usb data separative element (18), to coding after by up USB2.0 data and up USB3.0/
3.1 the up USB blended datas that data are formed are decoded.
8. the hybrid transmission system of a kind of usb data according to claim 7 and video data, it is characterised in that：
For scrambler, the upstream data decoding unit (27) adopts the coded system that the upstream data coding unit (17) adopts
Decoding process be descrambling code.
9. the hybrid transmission system of a kind of usb data according to claim 7 and video data, it is characterised in that：
The coded system that the upstream data coding unit (17) adopts is DC balance coding, the upstream data decoding unit
(27) decoding process for adopting is DC balance decoding.
10. the hybrid transmission system of a kind of usb data according to claim 1 and video data, it is characterised in that：
In a time multiplexed way at preset timed intervals section alternately sends up USB2.0 numbers to the up usb data mixed cell (28)
According to up USB3.0/3.1 data.
The hybrid transmission system of a kind of 11. usb datas according to claim 1 and video data, it is characterised in that：
The up usb data mixed cell (28) adds identification field, by up USB2.0 data and up USB3.0/3.1
Data are distinguished with different identification fields.
12. the hybrid transmission system of a kind of usb data according to claim 1 and video data, it is characterised in that：
The downlink data transmitting element (14) exports optical signal, and downlink data transmitting element (14) converts electrical signals to light letter
Number, and by optical signal launch to downlink transfer passage (31)；
The downlink data receiving unit (24) receives optical signal, and downlink data receiving unit (24) will be from downlink transfer passage
(31) optical signal for receiving is converted to electric signal；
The upstream data transmitting element (25) exports optical signal, and upstream data transmitting element (25) converts electrical signals to light letter
Number, and by optical signal launch to upstream transmission passage (32)；
The upstream data receiving unit (15) receives optical signal, and upstream data receiving unit (15) will be from upstream transmission passage
(32) optical signal for receiving is converted to electric signal.
The hybrid transmission system of a kind of 13. usb datas according to claim 12 and video data, it is characterised in that：
The downlink transfer passage (31) is optical fiber；
The upstream transmission passage (32) is optical fiber, and upstream transmission passage (32) uses each independent with downlink transfer passage (31)
Optical Fiber Transmission.
The hybrid transmission system of a kind of 14. usb datas according to claim 12 and video data, it is characterised in that：
The downlink transfer passage (31) is optical fiber；
The upstream transmission passage (32) is optical fiber, and upstream transmission passage (32) is passed with downlink transfer passage (31) common optical fiber
Defeated, on shared optical fiber, upstream transmission passage (32) is carried out at different wavelengths with the optical signal of downlink transfer passage (31)
Transmission.
15. the hybrid transmission system of a kind of usb data according to claim 1 and video data, it is characterised in that：
The downlink data transmitting element (14) exports electric signal, and drives downlink transfer passage (31)；
The downlink data receiving unit (24) receives electric signal from downlink transfer passage (31)；
The upstream data transmitting element (25) exports electric signal, and drives upstream transmission passage (32)；
The upstream data receiving unit (15) receives electric signal from upstream transmission passage (32).
16. the hybrid transmission system of a kind of usb data according to claim 15 and video data, it is characterised in that：
The downlink transfer passage (31) is cable；
The upstream transmission passage (32) is cable, and upstream transmission passage (32) uses each independent with downlink transfer passage (31)
Cable transmission.
17. the hybrid transmission system of a kind of usb data according to claim 1 and video data, it is characterised in that：
The downlink data transmitting element (14) exports optical signal, and downlink data transmitting element (14) converts electrical signals to light letter
Number, and by optical signal launch to downlink transfer passage (31)；
The downlink data receiving unit (24) receives optical signal, and downlink data receiving unit (24) will be from downlink transfer passage
(31) optical signal for receiving is converted to electric signal；
The upstream data transmitting element (25) exports electric signal, and drives upstream transmission passage (32)；
The upstream data receiving unit (15) receives electric signal from upstream transmission passage (32)；
The downlink transfer passage (31) is optical fiber；
The upstream transmission passage (32) is cable.
The hybrid transmission system of a kind of 18. usb datas according to claim 1 and video data, it is characterised in that：
The length of the downlink transfer passage (31) and upstream transmission passage (32) is all higher than 5 meters.
19. the hybrid transmission system of a kind of usb data according to claim 1 and video data, it is characterised in that：
The video source (6), a USB2.0 data terminals (8) and a USB3.0/3.1 data terminals (4) are calculating owner
The part of machine, the video reception terminal (7) is display, the 2nd USB2.0 data terminals (9) and second
USB3.0/3.1 data terminals (5) select one from USB device and usb hub.
20. the hybrid transmission system of a kind of usb data according to claim 1 and video data, it is characterised in that：
The first USB2.0 interface units (12) are by a USB2.0 differential signal lines (801) and a USB2.0 data ends
End (8) carries out the transmitting-receiving of USB2.0 data, and a USB3.0/3.1 interface units (19) are believed by a USB3.0/3.1 difference
Number line (401) carries out the transmitting-receiving of USB3.0/3.1 data, a USB2.0 data ends with a USB3.0/3.1 data terminals (4)
End (8) and a USB3.0/3.1 data terminals (4) share same USB3.0/3.1 plugs, the USB2.0 difference letter
Number line (801) and a USB3.0/3.1 differential signal lines (401) are all connected with the USB3.0/3.1 plugs.
The hybrid transmission system of a kind of 21. usb datas according to claim 1 and video data, it is characterised in that：
The first USB2.0 interface units (12) are by a USB2.0 differential signal lines (801) and a USB2.0 data ends
End (8) carries out the transmitting-receiving of USB2.0 data, and a USB3.0/3.1 interface units (19) are believed by a USB3.0/3.1 difference
Number line (401) carries out the transmitting-receiving of USB3.0/3.1 data with a USB3.0/3.1 data terminals (4), and a USB2.0 is poor
Sub-signal line (801) and a USB3.0/3.1 differential signal lines (401) are connected from different USB plugs.
The hybrid transmission system of a kind of 22. usb datas according to claim 1 and video data, it is characterised in that：
The 2nd USB2.0 interface units (22) are by the 2nd USB2.0 differential signal lines (901) and the 2nd USB2.0 data ends
End (9) carries out the transmitting-receiving of USB2.0 data, and the 2nd USB3.0/3.1 interface units (29) are believed by the 2nd USB3.0/3.1 difference
Number line (501) carries out the transmitting-receiving of USB3.0/3.1 data, the 2nd USB2.0 data ends with the 2nd USB3.0/3.1 data terminals (5)
End (9) and the 2nd USB3.0/3.1 data terminals (5) share same USB3.0/3.1 plugs, the 2nd USB2.0 difference letter
Number line (901) and the 2nd USB3.0/3.1 differential signal lines (501) are all connected with the USB3.0/3.1 plugs.
The hybrid transmission system of a kind of 23. usb datas according to claim 1 and video data, it is characterised in that：
The 2nd USB2.0 interface units (22) are by the 2nd USB2.0 differential signal lines (901) and the 2nd USB2.0 data ends
End (9) carries out the transmitting-receiving of USB2.0 data, and the 2nd USB3.0/3.1 interface units (29) are believed by the 2nd USB3.0/3.1 difference
Number line (501) carries out the transmitting-receiving of USB3.0/3.1 data with the 2nd USB3.0/3.1 data terminals (5), and the 2nd USB2.0 is poor
Sub-signal line (901) and the 2nd USB3.0/3.1 differential signal lines (501) are connected from different USB plugs.
The combining transmission method of a kind of 24. usb datas and video data, is passed by the first mixed transport device (1), the second mixing
Defeated device (2) and transmission channel (3), the transmitting video data between video source (6) and video reception terminal (7), and first
USB2.0 data are transmitted between USB2.0 data terminals (8) and the 2nd USB2.0 data terminals (9), in a USB3.0/3.1 numbers
According to transmission USB3.0/3.1 data between terminal (4) and the 2nd USB3.0/3.1 data terminals (5), it is characterised in that：
The transmission channel (3) includes downlink transfer passage (31) and upstream transmission passage (32)；
The first mixed transport device (1) receives the video data from video source (6) and is compressed, at the same receive from
Descending USB2.0 data of the first USB2.0 data terminals (8) and from the descending of a USB3.0/3.1 data terminals (4)
USB3.0/3.1 data, the video data after compression, descending USB2.0 data and descending USB3.0/3.1 data are answered with the time-division
Mixed with mode, multiplex mode is for insertion synchronization field and by transmission of default time period compressed video data, descending
USB2.0 data and descending USB3.0/3.1 data, then carry out downlink data transmission processe to blended data, and after processing
Data the second mixed transport device (2) is sent to by downlink transfer passage (31), the second mixed transport device (2) is received and
From the data of downlink transfer passage (31) and downlink data reception processing is carried out, compressed video data, descending is obtained after process
The blended data of USB2.0 data and descending USB3.0/3.1 data is simultaneously separated, and separate mode is to detect synchronization field
Afterwards by the compressed video data in reception of default time period blended data, descending USB2.0 data and descending USB3.0/3.1 numbers
According to, compressed video data, descending USB2.0 data and descending USB3.0/3.1 data are obtained after separation, compressed video data is entered
Row decompression, by the video data after decompression video reception terminal (7) is sent to, and by descending USB2.0 data is activations second is given
USB2.0 data terminals (9), by descending USB3.0/3.1 data is activations the 2nd USB3.0/3.1 data terminals (5) are given；
The second mixed transport device (2) receive from the 2nd USB2.0 data terminals (9) up USB2.0 data and come
From the up USB3.0/3.1 data of the 2nd USB3.0/3.1 data terminals (5) and mixed, blended data is carried out up
Data sending processing, and the data after process are sent to into the first mixed transport device (1) by upstream transmission passage (32), the
One mixed transport device (1) receives the data from upstream transmission passage (32) and carries out upstream data reception processing, after process
Obtain the blended data of up USB2.0 data and up USB3.0/3.1 data and separated, obtain up after separation
USB2.0 data and up USB3.0/3.1 data, by up USB2.0 data is activations a USB2.0 data terminals (8) are given, will
Up USB3.0/3.1 data is activations give a USB3.0/3.1 data terminals (4).
The combining transmission method of a kind of 25. usb datas according to claim 24 and video data, it is characterised in that：
The downlink data transmission processe is to convert electrical signals to optical signal, optical signal launch to downlink transfer passage (31),
Downlink transfer passage (31) is optical fiber；
The upstream data transmission processe is to convert electrical signals to optical signal, optical signal launch to upstream transmission passage (32),
Upstream transmission passage (32) is optical fiber；
The downlink data reception processing and the upstream data reception processing are to convert optical signals to electric signal.
The combining transmission method of a kind of 26. usb datas according to claim 25 and video data, it is characterised in that：
The upstream transmission passage (32) uses each independent Optical Fiber Transmission with downlink transfer passage (31).
27. the combining transmission method of a kind of usb data according to claim 25 and video data, it is characterised in that：
The upstream transmission passage (32) is transmitted with downlink transfer passage (31) common optical fiber, on shared optical fiber, up biography
Defeated passage (32) is transmitted at different wavelengths with the optical signal of downlink transfer passage (31).
The combining transmission method of a kind of 28. usb datas according to claim 24 and video data, it is characterised in that：
The downlink data transmission processe is that electric signal is suitable for into the mode of long range propagation on cable to drive downlink transfer
Passage (31), downlink transfer passage (31) is cable；
The upstream data transmission processe is that electric signal is suitable for into the mode of long range propagation on cable to drive uplink
Passage (32), upstream transmission passage (32) is cable；
The downlink data reception processing and the upstream data reception processing are to receive electric signal for subsequent treatment.
29. the combining transmission method of a kind of usb data according to claim 28 and video data, it is characterised in that：
The upstream transmission passage (32) uses each independent cable transmission with downlink transfer passage (31).
30. the combining transmission method of a kind of usb data according to claim 24 and video data, it is characterised in that：
The downlink data transmission processe is to convert electrical signals to optical signal, optical signal launch to downlink transfer passage (31),
Downlink transfer passage (31) is optical fiber；
The upstream data transmission processe is that electric signal is suitable for into the mode of long range propagation on cable to drive uplink
Passage (32), upstream transmission passage (32) is cable；
The downlink data reception processing is to convert optical signals to electric signal；
The upstream data reception processing is to receive electric signal for subsequent treatment.
The combining transmission method of a kind of 31. usb datas according to claim 24 and video data, it is characterised in that：
The compression algorithm that the first mixed transport device (1) adopts is for frame data compression algorithm；
The decompression algorithm that the second mixed transport device (2) adopts is for corresponding frame in decompression algorithm.
The combining transmission method of a kind of 32. usb datas according to claim 24 and video data, it is characterised in that：
The compression algorithm that the first mixed transport device (1) adopts is for interframe compression algorithm；
The decompression algorithm that the second mixed transport device (2) adopts is for corresponding inter decompression algorithm.
33. the combining transmission method of a kind of usb data according to claim 24 and video data, it is characterised in that：
The first mixed transport device (1) carries out video data, descending USB2.0 data and descending USB3.0/3.1 data
After mixing, first blended data is encoded, then carry out downlink data transmission processe, coded system is scrambler；
The second mixed transport device (2) is carried out after downlink data reception processing to data, first to decoding data, is obtained
The blended data of video data, descending USB2.0 data and descending USB3.0/3.1 data, then separated, decoding process is solution
Scrambler.
34. the combining transmission method of a kind of usb data according to claim 24 and video data, it is characterised in that：
The first mixed transport device (1) carries out video data, descending USB2.0 data and descending USB3.0/3.1 data
After mixing, first blended data is encoded, then carry out downlink data transmission processe, coded system is DC balance coding；
The second mixed transport device (2) is carried out after downlink data reception processing to data, first to decoding data, is obtained
The blended data of video data, descending USB2.0 data and descending USB3.0/3.1 data, then separated, decoding process is straight
Mobile equilibrium is decoded.
The combining transmission method of a kind of 35. usb datas according to claim 24 and video data, it is characterised in that：
After the second mixed transport device (2) is mixed up USB2.0 data and up USB3.0/3.1 data, first
Blended data is encoded, then carries out upstream data transmission processe, coded system is scrambler；
The first mixed transport device (1) is carried out after upstream data reception processing to data, first to decoding data, is obtained
The blended data of up USB2.0 data and up USB3.0/3.1 data, then separated, decoding process is descrambling code.
The combining transmission method of a kind of 36. usb datas according to claim 24 and video data, it is characterised in that：
After the second mixed transport device (2) is mixed up USB2.0 data and up USB3.0/3.1 data, first
Blended data is encoded, then carries out upstream data transmission processe, coded system is DC balance coding；
The first mixed transport device (1) is carried out after upstream data reception processing to data, first to decoding data, is obtained
The blended data of up USB2.0 data and up USB3.0/3.1 data, then separated, decoding process is DC balance solution
Code.
37. the hybrid transmission system of a kind of usb data according to claim 24 and video data, it is characterised in that：
The second mixed transport device (2) in a time multiplexed way at preset timed intervals section alternately send up USB2.0 data and
Up USB3.0/3.1 data.
38. the hybrid transmission system of a kind of usb data according to claim 24 and video data, it is characterised in that：
The second mixed transport device (2) adds identification field, by up USB2.0 data and up USB3.0/3.1 data
Distinguished with different identification fields.
39. the combining transmission method of a kind of usb data according to claim 24 and video data, it is characterised in that：
The length of the downlink transfer passage (31) and upstream transmission passage (32) is all higher than 5 meters.
40. the combining transmission method of a kind of usb data according to claim 24 and video data, it is characterised in that：
The video source (6), a USB2.0 data terminals (8) and a USB3.0/3.1 data terminals (4) are calculating owner
The part of machine, the video reception terminal (7) is display, the 2nd USB2.0 data terminals (9) and second
USB3.0/3.1 data terminals (5) select one from USB device and usb hub.
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| CN106354682A (en) * | 2016-08-30 | 2017-01-25 | 江苏沁恒股份有限公司 | Digital signal and USB signal mixed transmission device and method |
| CN106250343B (en) * | 2016-08-30 | 2019-03-01 | 江苏沁恒股份有限公司 | A kind of digital signal and usb signal mixed transport device and method |
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| CN202889527U (en) * | 2012-07-27 | 2013-04-17 | 北京天翼讯通科技有限公司 | High-definition non-compression multi-service digital video optical transmitter and receiver |
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| JP3723980B2 (en) * | 2003-12-22 | 2005-12-07 | 横河電機株式会社 | Communication control system |
| JP2007081534A (en) * | 2005-09-12 | 2007-03-29 | Matsushita Electric Ind Co Ltd | Decoding reproducing apparatus |
| CN201282528Y (en) * | 2008-11-06 | 2009-07-29 | 上海宽岱电讯科技发展有限公司 | Video optical transmitter-receiver with Ethernet interface |
| TWI483195B (en) * | 2010-03-16 | 2015-05-01 | Toshiba Kk | Semiconductor memory device |
| CN102891990B (en) * | 2012-10-18 | 2016-06-08 | 刘明学 | Extensive HD-SDI video frequency graphic monitoring system and method based on dispersion switching method |
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| CN202889527U (en) * | 2012-07-27 | 2013-04-17 | 北京天翼讯通科技有限公司 | High-definition non-compression multi-service digital video optical transmitter and receiver |
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