CN207491127U - HD video optical transmission system - Google Patents
HD video optical transmission system Download PDFInfo
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- CN207491127U CN207491127U CN201721422448.8U CN201721422448U CN207491127U CN 207491127 U CN207491127 U CN 207491127U CN 201721422448 U CN201721422448 U CN 201721422448U CN 207491127 U CN207491127 U CN 207491127U
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- division multiplexer
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- wavelength division
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Abstract
The utility model discloses a kind of HD video optical transmission systems, including transmitting terminal and receiving terminal, transmitting terminal includes the first balanced device, first wavelength division multiplexer, second wavelength division multiplexer, first MCU, first parallel-serial conversion chip and the first serioparallel exchange chip, receiving terminal includes the second balanced device, third wavelength division multiplexer, 4th wavelength division multiplexer, 2nd MCU, second parallel-serial conversion chip and the second serioparallel exchange chip, first MCU receives the data on iic bus and is transmitted to the first parallel-serial conversion chip after being processed into positive iic bus data, positive iic bus data and forward data business are packaged into positive blended data by the first parallel-serial conversion chip, positive video clock signal and positive blended data are packaged into the first blended data and are transmitted by the second optical fiber by the second wavelength division multiplexer.The utility model can meet the data transportation requirements of iic bus, can realize vision signal of the transmission with high-bandwidth digital content protection technology.
Description
Technical field
The utility model is related to field of video transmission, more particularly to a kind of HD video optical transmission system.
Background technology
With the development of computer technology, the demand to HD video distance transmission system is increasing, HD video
Not only data volume is big for data, also has strict demand to IIC auxiliary control channels.With HDCP (High-bandwidth
Digital Content Protection, high-bandwidth digital content protection) technology vision signal, for ensure high-definition signal not
It is illegally recorded, needs to carry out complicated two-way computations on iic bus, and the SDA signal of iic bus is two-way telecommunications
Number, and have strict demand to sequential.Normal optical transmitter and receiver can not meet the data transportation requirements of this channel, can not realize conveyor
There is the vision signal of high-bandwidth digital content protection technology.
Utility model content
The technical problem to be solved by the present invention is to for the drawbacks described above of the prior art, provide a kind of energy and meet
The data transportation requirements of iic bus can realize that the high definition of vision signal of the transmission with high-bandwidth digital content protection technology regards
Frequency optical transmission system.
Technical solution is used by the utility model solves its technical problem：Construct a kind of HD video optical transport system
System, including transmitting terminal and receiving terminal, the transmitting terminal include the first balanced device, the first wavelength division multiplexer, the second wavelength division multiplexer,
First MCU, the first parallel-serial conversion chip and the first serioparallel exchange chip, the receiving terminal include the second balanced device, third wavelength-division
Multiplexer, the 4th wavelength division multiplexer, the 2nd MCU, the second parallel-serial conversion chip and the second serioparallel exchange chip, described first is balanced
Device receives high-definition video signal and is converted into three road TMDS signals and positive video clock signal, and first balanced device will
The three roads TMDS signals after first wavelength division multiplexer by the first optical fiber by transmitting, and first balanced device is also by institute
It states positive video clock signal and is transmitted to second wavelength division multiplexer, the first MCU receives the high-definition video signal
Data on iic bus simultaneously are processed into being transmitted to the first parallel-serial conversion chip after positive iic bus data, described
The positive iic bus data and the forward data business received are packaged into positive blended data, institute by string conversion chip together
The second wavelength division multiplexer is stated the positive video clock signal and positive blended data are packaged into the first blended data and passed through
Second optical fiber transmits, and the first serioparallel exchange chip receives the reversed blended data of the second wavelength division multiplexer transmission and will
It obtains reversed iic bus data and reverse data traffic after unpacking, and the first serioparallel exchange chip is total by the reversed IIC
For line number according to the first MCU is sent to, the reverse data traffic is also sent to processing locality by the first serioparallel exchange chip；
The three roads TMDS signals of the first optical fiber transmission revert to three tunnels after the third wavelength division multiplexer
The TMDS data of three road video are sent to second equilibrium by the TMDS data of video, the third wavelength division multiplexer
Device, first blended data of the second optical fiber transmission solve reversed video clock after the 4th wavelength division multiplexer
Signal and reverse data traffic, the 4th wavelength division multiplexer send the reversed video clock signal to second equilibrium
Device restores complete video signal, and the second parallel-serial conversion chip returns to the reverse data traffic and display equipment
IIC processing signals are sent to the 4th wavelength division multiplexer after being packaged, and the second serioparallel exchange chip receives the 4th wave
The positive blended data that division multiplexer is sent, and the positive blended data is solved into positive iic bus data and forward data
Business, the positive iic bus data are transmitted to the 2nd MCU and restored by the second serioparallel exchange chip, described
Second serioparallel exchange chip is sent to local after the forward data business is unpacked.
In HD video optical transmission system described in the utility model, the iic bus includes SCL data lines and SDA
Data line.
In HD video optical transmission system described in the utility model, the first parallel-serial conversion chip uses
MAX9207 chips, the first serioparallel exchange chip use MAX9208 chips.
In HD video optical transmission system described in the utility model, the second parallel-serial conversion chip uses
MAX9207 chips, the second serioparallel exchange chip use MAX9208 chips.
In HD video optical transmission system described in the utility model, the forward direction iic bus data include SCL numbers
According to, SDA data and read-write state.
In HD video optical transmission system described in the utility model, the reversed iic bus data include SDA signal
With single byte READY signal.
In HD video optical transmission system described in the utility model, the forward data business includes RS232, audio
With the forward data of IR (infrared technique).
In HD video optical transmission system described in the utility model, the reverse data traffic includes RS232, audio
With the reverse data of IR.
Implement the HD video optical transmission system of the utility model, have the advantages that：Due to be equipped with transmitting terminal and
Receiving terminal, the transmitting terminal include the first balanced device, the first wavelength division multiplexer, the second wavelength division multiplexer, the first MCU, first simultaneously
String conversion chip and the first serioparallel exchange chip, the receiving terminal include the second balanced device, third wavelength division multiplexer, the 4th wavelength-division
Multiplexer, the 2nd MCU, the second parallel-serial conversion chip and the second serioparallel exchange chip, it is using the first MCU and the 2nd MCU that IIC is total
After line number is according to decoding, become the data of forward and reverse, and together with bidirectional service data, in the first serioparallel exchange of transmitting terminal
It is transmitted in chip, the first parallel-serial conversion chip or in the second parallel-serial conversion chip and the second serioparallel exchange chip of receiving terminal
Transmission, can real-time Transmission HDCP signals, therefore can meet the data transportation requirements of iic bus, can realize transmit carry high bandwidth
The vision signal of digital content protection technology.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of transmitting terminal in the utility model HD video optical transmission system one embodiment；
Fig. 2 is the structure diagram of receiving terminal in the embodiment；
Fig. 3 be the embodiment in iic bus transmitting terminal data transmission schematic diagram；
Fig. 4 be the embodiment in iic bus receiving terminal data transmission schematic diagram.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
In the utility model HD video optical transmission system embodiment, which includes transmitting terminal
And receiving terminal, wherein, the structure diagram of transmitting terminal is as shown in Figure 1, the structure diagram of receiving terminal is as shown in Figure 2.Referring to Fig. 1
And Fig. 2, transmitting terminal include the first balanced device, the first wavelength division multiplexer, the second wavelength division multiplexer, the first MCU, the first parallel-serial conversion
Chip and the first serioparallel exchange chip, receiving terminal include the second balanced device, third wavelength division multiplexer, the 4th wavelength division multiplexer, the
Two MCU, the second parallel-serial conversion chip and the second serioparallel exchange chip, wherein, the first equalizer input high-definition video signal simultaneously will
It is converted to three road TMDS signals and positive video clock signal, that is to say, that the first balanced device can export three road TMDS signals
Positive video clock signal all the way, the first balanced device by three road TMDS signals of output by after the first wavelength division multiplexer by
First optical fiber transmits, and positive video clock signal is also transmitted to the second wavelength division multiplexer by the first balanced device, and the first MCU receives high
Data on the iic bus of clear vision signal, and it is transmitted to the first parallel-serial conversion core after being processed into positive iic bus data
Piece, meanwhile, the first parallel-serial conversion chip can also receive forward data business, and the first parallel-serial conversion chip is by the positive IIC of reception
Bus data and forward data business are packaged into positive blended data, and positive blended data is sent to the second wavelength-division multiplex
Device.
It is noted that in the present embodiment, forward data business includes the forward data of RS232, audio and IR.When
So, in practical applications, forward data business accordingly can also be deleted or be increased as the case may be.
Above-mentioned positive video clock signal and positive blended data are packaged into the first blended data by the second wavelength division multiplexer
And transmitted by the second optical fiber, the first serioparallel exchange chip receives the reversed blended data that the second wavelength division multiplexer is sent, and will
The reversed blended data obtains reversed iic bus data (the reversed iic bus data for returning to the first MCU) and reversed after unpacking
Reversed iic bus data are sent to the first MCU by data service, the first serioparallel exchange chip, meanwhile, the first serioparallel exchange chip
Reverse data traffic is also sent to processing locality.
It is noted that in the present embodiment, reverse data traffic includes the reverse data of RS232, audio and IR.When
So, in practical applications, reverse data traffic accordingly can also be deleted or be increased as the case may be.
The course of work of receiving terminal and the process of transmitting terminal are exactly the opposite, and three road TMDS signals of the first optical fiber transmission pass through
After third wavelength division multiplexer, the TMDS data of three road videos are reverted to, third wavelength division multiplexer is by the TMDS data of three road videos
The second balanced device is sent to, the first blended data of the second optical fiber transmission solves reversed video after the 4th wavelength division multiplexer
Clock signal and reverse data traffic, the 4th wavelength division multiplexer send reversed video clock signal to second balanced device and restore
Complete video signal, meanwhile, the second parallel-serial conversion chip beats the IIC processing signals that reverse data traffic and display equipment return
The 4th wavelength division multiplexer is sent to after packet, the second serioparallel exchange chip receives the positive mixed number that the 4th wavelength division multiplexer is sent
According to and positive blended data being solved positive iic bus data and forward data business, the second serioparallel exchange chip will solve
Positive iic bus data are transmitted to the 2nd MCU and are restored, and the second serioparallel exchange chip is sent after forward data business is unpacked
To local.
The utility model will become the data of forward and reverse after the decoding of iic bus data using the first MCU, and with it is double
To business datum together, transmitted in the first serioparallel exchange chip, the first parallel-serial conversion chip, can real-time Transmission HDCP signals,
Therefore it can meet the data transportation requirements of iic bus, can realize that video of the transmission with high-bandwidth digital content protection technology is believed
Number, that is, can realize the transmission of auxiliary control channel IIC data in a fiber.The signal quality of the utility model is stablized, simultaneous
Capacitive is stronger, and transmission range is up to 300 meters.
It is noted that in the present embodiment, the first parallel-serial conversion chip uses MAX9207 chips, the first serioparallel exchange
Chip uses MAX9208 chips.Second parallel-serial conversion chip uses MAX9207 chips, and the second serioparallel exchange chip uses
MAX9208 chips.Certainly, in practical applications, the first parallel-serial conversion chip, the first serioparallel exchange chip, the second parallel-serial conversion
Other models, which may be used, in chip and the second serioparallel exchange chip has the chip of similar functions.
Fig. 3 is that iic bus is in the data transmission schematic diagram of transmitting terminal in the present embodiment, and in reflection end, the IIC of signal source is total
Line includes SCL data lines and SDA data lines, and signal source is usually DVD, blue light machine, video server or advanced PCs, SCL numbers
The first MCU is inputted simultaneously according to line and SDA data lines, and the first MCU is separated into the transmission of three tunnels and two-way receives data, wherein three
Road transmission data is original transmitting SCL, original transmitting SDA and read-write mark respectively, this three tunnels transmission data namely on
Positive iic bus data are stated, which includes SCL data, SDA data and read-write state.Meanwhile this three tunnel
Transmission data and forward data business transmit after the first parallel-serial conversion chip together.In addition two-way receives data and is back
The SDA signal of biography and single byte READY signal, this two-way receive data i.e. above-mentioned reversed iic bus data, this is reversely
Iic bus data include SDA signal and single byte READY signal.This SDA signal and single byte READY signal are by receiving terminal
2nd MCU is provided, and is solved after entering the second serioparallel exchange chip by the reversed blended data of distal end, while by reverse data industry
Business, which solves, is sent to processing locality.
Fig. 4 is that iic bus in the data transmission schematic diagram of receiving terminal, in receiving terminal, is answered from the 4th wavelength-division in the present embodiment
After entering the second serioparallel exchange chip with the positive blended data that device solves, the three roads letter of the first MCU processing of transmitting terminal is solved
Number, and the 2nd local MCU is given, then the data for showing equipment return and answer signal are passed through hair by the 2nd local MCU
Send SDA and send READY with reverse data traffic together enter the second parallel-serial conversion chip after be packaged after send out.
In short, IIC data flow processes are as follows, after signal source sends out original IIC data, the first MCU is separated into
Three road signals, and detect its and read and write position, then by originally transmitted SCL (i.e. SCL data), originally transmitted SDA (i.e. SDA data) and
Read-write state is sent to receiving terminal simultaneously, after the 2nd MCU of receiving terminal receives this three roads signal, by originally transmitted SCL, originally transmitted
SDA gives signal source, and by the response of signal source and reverse data by sending SDA, sends READY returns to transmitting terminal the
One MCU.The SDA signal of return is passed back to signal source by the first MCU of transmitting terminal after transmission READY is detected, thus complete
Into the transparent transmission of complete IIC data.The utility model can meet the data transportation requirements of iic bus, can realize conveyor
There is the vision signal of high-bandwidth digital content protection technology.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of HD video optical transmission system, which is characterized in that including transmitting terminal and receiving terminal, the transmitting terminal includes first
Balanced device, the first wavelength division multiplexer, the second wavelength division multiplexer, the first MCU, the first parallel-serial conversion chip and the first serioparallel exchange core
Piece, the receiving terminal turn including the second balanced device, third wavelength division multiplexer, the 4th wavelength division multiplexer, the 2nd MCU, second and string
Chip and the second serioparallel exchange chip are changed, the first equalizer input high-definition video signal is simultaneously converted into three road TMDS letters
Number and positive video clock signal, first balanced device by the three roads TMDS signals by first wavelength division multiplexer after
It is transmitted by the first optical fiber, the positive video clock signal is also transmitted to second wavelength-division multiplex by first balanced device
Device, the first MCU receive the data on the iic bus of the high-definition video signal and are processed into positive iic bus number
The first parallel-serial conversion chip is transmitted to after, the first parallel-serial conversion chip is by the positive iic bus data and connects
The forward data business of receipts is packaged into positive blended data, second wavelength division multiplexer by the positive video clock signal and
Positive blended data is packaged into the first blended data and is transmitted by the second optical fiber, described in the first serioparallel exchange chip reception
Reversed blended data that second wavelength division multiplexer is sent simultaneously obtains reversed iic bus data and reverse data industry after being unpacked
The reversed iic bus data are sent to the first MCU by business, the first serioparallel exchange chip, and described first goes here and there and turn
It changes chip and the reverse data traffic is also sent to processing locality；
The three roads TMDS signals of the first optical fiber transmission revert to three road videos after the third wavelength division multiplexer
TMDS data, the TMDS data of three road video are sent to second balanced device, institute by the third wavelength division multiplexer
First blended data for stating the transmission of the second optical fiber solves reversed video clock signal after the 4th wavelength division multiplexer
And reverse data traffic, the 4th wavelength division multiplexer send the reversed video clock signal to second balanced device also
Original goes out complete video signal, and the second parallel-serial conversion chip will be at the reverse data traffic and the IIC of display equipment return
Reason signal is sent to the 4th wavelength division multiplexer after being packaged, the second serioparallel exchange chip receives the 4th wavelength-division multiplex
The positive blended data that device is sent, and the positive blended data is solved into positive iic bus data and forward data business, institute
It states the second serioparallel exchange chip the positive iic bus data is transmitted to the 2nd MCU and restore, second string is simultaneously
Conversion chip is sent to local after the forward data business is unpacked.
2. HD video optical transmission system according to claim 1, which is characterized in that the iic bus includes SCL data
Line and SDA data lines.
3. HD video optical transmission system according to claim 2, which is characterized in that the first parallel-serial conversion chip is adopted
With MAX9207 chips, the first serioparallel exchange chip uses MAX9208 chips.
4. HD video optical transmission system according to claim 3, which is characterized in that the second parallel-serial conversion chip is adopted
With MAX9207 chips, the second serioparallel exchange chip uses MAX9208 chips.
5. the HD video optical transmission system according to claim 2 to 4 any one, which is characterized in that the forward direction IIC
Bus data includes SCL data, SDA data and read-write state.
6. the HD video optical transmission system according to claim 2 to 4 any one, which is characterized in that the reversed IIC
Bus data includes SDA signal and single byte READY signal.
7. HD video optical transmission system according to any one of claims 1 to 4, which is characterized in that the forward direction number
Include the forward data of RS232, audio and IR according to business.
8. HD video optical transmission system according to any one of claims 1 to 4, which is characterized in that the reversed number
Include the reverse data of RS232, audio and IR according to business.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721422448.8U CN207491127U (en) | 2017-10-27 | 2017-10-27 | HD video optical transmission system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721422448.8U CN207491127U (en) | 2017-10-27 | 2017-10-27 | HD video optical transmission system |
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| Publication Number | Publication Date |
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| CN207491127U true CN207491127U (en) | 2018-06-12 |
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|---|---|---|---|
| CN201721422448.8U Active CN207491127U (en) | 2017-10-27 | 2017-10-27 | HD video optical transmission system |
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| CN (1) | CN207491127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022257906A1 (en) * | 2021-06-08 | 2022-12-15 | Wingcomm Co., Ltd. | Optical cable for transmission of audio and video signals |
-
2017
- 2017-10-27 CN CN201721422448.8U patent/CN207491127U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022257906A1 (en) * | 2021-06-08 | 2022-12-15 | Wingcomm Co., Ltd. | Optical cable for transmission of audio and video signals |
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