CN207399381U - A kind of signal extends system - Google Patents
A kind of signal extends system Download PDFInfo
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- CN207399381U CN207399381U CN201720903746.2U CN201720903746U CN207399381U CN 207399381 U CN207399381 U CN 207399381U CN 201720903746 U CN201720903746 U CN 201720903746U CN 207399381 U CN207399381 U CN 207399381U
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Abstract
The utility model proposes a kind of signals to extend system, including：Transmitting terminal chip and the receiving terminal chip being connected with the transmitting terminal chip；Wherein, the transmitting terminal chip is for receiving HD video data, and after the HD video data are carried out with color space conversion process, either shallow compression processing and string encoding processing successively, gives the HD video data sending to the receiving terminal chip；The receiving terminal chip, for receiving the HD video data that the transmitting terminal chip is sent, and the HD video data of reception are carried out going here and there successively and after decoding process, either shallow decompression processing, color space conversion process, the HD video data is exported and are played out to display device.System is extended using above-mentioned signal, the transmission range of HD video data can be extended.
Description
Technical field
The utility model is related to signal transmission technology fields, extend system more specifically to a kind of signal.
Background technology
High-definition media interface (High-Definition Media Interface, HDMI) or high definition display interface
The advantages of (Displayport, DP) is very big is to be brought with uncompressed, lossless high-resolution display characteristic and real-time to user
The hearing experience of high-quality.Wherein, based on HDMI or DP keyboard, video recorder, mouse (Keyboard, Video, Mouse,
KVM) system is the common integrated system for providing controllable HD video display service to the user.
The high definition picture of this no compression is, it is necessary to very high data transfer rate, therefore it is in use also to bring this technology
Limitation.Due to high speed signal in cable exponentially rapid decay, HDMI, DP signal of high definition, the especially 4K of ultra high-definition,
The signal of 8K with expensive wire rod, can only also transmit several meters of distance, thus largely limit HDMI, DP
Deng the application shown without compression, lossless high definition.
The limitation of high-definition data transmission distance is limited to, building for kvm system can only also provide small-scale height to the user
Clear video display service.Therefore, it is necessary to effective signals to extend circuit system, extends the transmission range of high-definition signal, realizes more
The HD video data transmission of long range.
Utility model content
In order to solve the above technical problems, the utility model, which provides a kind of signal, extends system, HD video letter can be extended
Number transmission range, realize the HD video data transmission of longer distance.
To achieve the above object, the utility model provides following technical solution：
A kind of signal extends system, including：
Transmitting terminal chip and the receiving terminal chip being connected with the transmitting terminal chip；
Wherein, the transmitting terminal chip is for receiving HD video data, and to the HD video data successively into
After row color space conversion process, either shallow compression processing and string encoding processing, the HD video data sending is connect to described
Receiving end chip；
The receiving terminal chip, for receiving the HD video data that the transmitting terminal chip is sent, and to reception
HD video data carry out going here and there successively and after decoding process, either shallow decompression processing, color space conversion process, the high definition are regarded
Frequency is played out according to output to display device.
Preferably, the transmitting terminal chip includes：
Data reception module, for receiving HD video data packet；
The protocol logic module being connected with the data reception module, for the high definition received to the data reception module
Video data packet carries out agreement unpacking processing, obtains HD video data；
The color space conversion module being connected with the protocol logic module, for what is sent to the protocol logic module
HD video data carry out color space conversion process；
The either shallow data compressing module being connected with the color space conversion module, for the color space modulus of conversion
What block was sent, the HD video data after color space conversion process are carried out, carry out either shallow data compression process；
The general SERDES coding parallel serial conversion modules being connected with the either shallow data compressing module, for the either shallow
Treated that HD video data are encoded and parallel-serial conversion processing for the compression that data compressing module is sent；
The data transmission blocks being connected with the general SERDES coding parallel serial conversion module, for will be described general
The serial HD video data sending that SERDES coding parallel serial conversion modules are sent is to the receiving terminal chip.
Preferably, the receiving terminal chip includes：
Signal receiving module, for receiving the HD video data that the transmitting terminal chip is sent；
The general SERDES decoding serioparallel exchange modules being connected with the signal receiving module, for being received to the signal
The HD video data that module receives are decoded and serioparallel exchange processing；
The data decompression module being connected with the general SERDES decodings serioparallel exchange module, for described general
The HD video data that SERDES decoding serioparallel exchange modules are sent unzip it processing；
The color conversion being connected with the data decompression module, for what is sent to the data decompression module
HD video data carry out color space conversion process；
The protocol groups bag module being connected with the color conversion, for the color sent to the color conversion
The transformed HD video data in space carry out protocol groups bag processing, obtain HD video data packet；
The signal transmitting module being connected with the protocol groups bag module, for the high definition for sending the protocol groups bag module
Video data packet is sent to display device and plays out.
Preferably, the system also includes：
The two-way usb signal of two interconnections extends chip, is used for transmission control signal.
Preferably, the two-way usb signal of described two interconnections extends chip and is connected by a pair of of differential lines.
Preferably, connected between the transmitting terminal chip and the receiving terminal chip by differential lines.
Preferably, connected between the transmitting terminal chip and the receiving terminal chip by 3 pairs or less than 3 pairs of differential lines
It connects.
Preferably, the transmitting terminal chip and the receiving terminal chip are respectively asic chip or fpga chip.
It can be seen from the above technical proposal that signal provided by the utility model extends system, mainly by two mutually
The transceiving chip of connection is formed.One chip is used for at HD video data progress color space conversion process, either shallow compression
It manages and after string encoding processing, by HD video data signal transmission to another chip, another chip receives HD video number
It is believed that number, and HD video data go here and there and after decoding process, either shallow decompression processing, color space conversion process, are exported
It is played out to display device.Above-mentioned color space conversion process and either shallow compression processing can not influence video image quality
On the premise of, data bandwidth is reduced, so as to so that the transmission range of HD video data is longer.
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 the embodiment of the utility model, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structure diagram that a kind of signal that the utility model embodiment provides extends system；
Fig. 2 is the structure diagram that another signal that the utility model embodiment provides extends system；
Fig. 3 is the structure diagram that another signal that the utility model embodiment provides extends system；
Fig. 4 is the structure diagram that another signal that the utility model embodiment provides extends system.
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.
The utility model embodiment discloses a kind of signal and extends system, and shown in Figure 1, which includes：
Transmitting terminal chip 101 and the receiving terminal chip 102 being connected with transmitting terminal chip 101；
Specifically, transmitting terminal chip 101 and receiving terminal chip 102 be mainly used for carrying out signal necessary processing and
Realize the transmitting-receiving of signal.Transmitting terminal chip 101 and receiving terminal chip 102 are arranged in different places, by data between the two
Connecting line realizes the conduction to signal.
Wherein, transmitting terminal chip 101 is for receiving HD video data, and the HD video data are carried out successively
After color space conversion process, either shallow compression processing and string encoding processing, the HD video data sending is given to receiving terminal core
Piece 102；
Specifically, the HD video data that transmitting terminal chip 101 receives are the height received by HDMI ports or DP ports
Clear video data packet carries out protocol analysis processing, you can obtain HD video data to the HD video data packet.
Color space conversion process can reduce the color depth of HD video data, so as to reduce the number of HD video data
According to rate.And either shallow compression is handled, and can be done up to 8 on the premise of picture quality is not influenced:1 bit stream data compression
Than reducing the required bandwidth of bit stream.
And string encoding is handled, and is referred to carry out HD video data coded treatment and is carried out parallel-serial conversion processing, it will simultaneously
Row data are converted to serial data.
Finally, transmitting terminal chip 101 is to receiving terminal chip 102 by treated serial HD video data sending.
Receiving terminal chip 102, for receiving the HD video data of the transmission of transmitting terminal chip 101, and to the height of reception
Clear video data carries out going here and there successively and after decoding process, either shallow decompression processing, color space conversion process, by the HD video
Data are exported to be played out to display device.
Specifically, the signal that the utility model embodiment is proposed extends the transmitting terminal of system and receiving terminal is balance frame
The composition of structure, i.e. receiving terminal chip 102, the composition with transmitting terminal chip 101 are balance and symmetry form.With transmitting terminal chip 101
HD video data are carried out with color space conversion, either shallow compression, coding and parallel-serial conversion and handles corresponding, receiving terminal chip
The HD video data that 102 pairs of transmitting terminal chips 101 are sent carry out serioparallel exchange processing, decoding process, decompression and
The color space of HD video data, is converted to original color space by color space conversion process again, is realized pair
The recovery of the HD video data of reception.
Finally, the HD video data of recovery are exported and played out to display device by receiving terminal chip 102.Receiving terminal core
The HD video data that piece 102 is recovered are identical with the HD video data that transmitting terminal chip 101 is received.
The signal that the utility model embodiment proposes extends system, is mainly made of the transceiving chip of two interconnections.
One chip is used for after HD video data are carried out with color space conversion process, either shallow compression processing and string encoding processing, will
HD video data signal transmission gives another chip, another chip receives HD video data-signal, and to HD video
Data go here and there and after decoding process, either shallow decompression processing, color space conversion process, export and played out to display device.
Above-mentioned color space conversion process and either shallow compression processing can reduce data band on the premise of video image quality is not influenced
Width, so as to so that the transmission range of HD video data is longer.
Optionally, shown in Figure 2 in another embodiment of the utility model, transmitting terminal chip 101 includes：
Data reception module 1011, for receiving HD video data packet；
Specifically, 1011 inside of data reception module includes data receiver circuit, the circuit and HDMI ports or DP ports
Connection receives the HD video data packet from HDMI ports or the output of DP ports.
The protocol logic module 1012 being connected with data reception module 1011, for what is received to data reception module 1011
HD video data packet carries out agreement unpacking processing, obtains HD video data；
Specifically, after data reception module 1011 receives HD video data packet, HD video data packet is sent to association
Logic module 1012 is discussed, protocol logic module 1012 carries out at unpacking the HD video data packet of reception according to the agreement of regulation
Reason, obtains the HD video data included in data packet.
The color space conversion module 1013 being connected with protocol logic module 1012, for sending out protocol logic module 1012
The HD video data sent carry out color space conversion process；
Specifically, protocol logic module 1012 will unpack obtained HD video data sending to color space conversion module
1013, color space conversion module 1013 converts the color space of HD video data.In actual implementation, this practicality is new
During type technical solution, engineer can support according to display device resolution requirement, wire rod quality and length, transmitting terminal signal source
Signal format, choose whether using color space conversion in 4：4:4-→4:2:2 or 4：4:4-→4:2:0 conversion.
Color space converts the color depth that can reduce HD video data, so as to reduce data bandwidth.
It should be noted that according to actual use demand, color space conversion can not also be carried out to HD video data
Color space conversion module 1013 or control color space conversion module 1013 in transmitting terminal chip 101 are rejected in processing at this time
It does not work.
The either shallow data compressing module 1014 being connected with color space conversion module 1013, for color space modulus of conversion
What block 1013 was sent, the HD video data after color space conversion process are carried out, carry out either shallow data compression process；
Specifically, after color space conversion module 1013 carries out color space conversion to HD video data, high definition is regarded
Frequency evidence is sent to either shallow data compressing module 1014.Either shallow data compressing module 1014 carries out either shallow pressure to HD video data
Contracting is handled, and in actual use, according to data transfer demands, compression ratio (1,2,3,4) can be set, further to reduce video
The bandwidth of code stream, while ensure higher image quality.
It should be noted that according to actual data transfer rate and the demand of distance, can also save to HD video number
The step of according to processing is compressed, omits either shallow data compressing module 1014.
The general SERDES coding parallel serial conversion modules 1015 being connected with either shallow data compressing module 1014, for either shallow
Treated that HD video data are encoded and parallel-serial conversion processing for the compression that data compressing module 1014 is sent；
Specifically, either shallow data compressing module 1014 gives the compressed HD video data sending of either shallow to general SERDES
Parallel serial conversion module 1015 is encoded, general SERDES encodes parallel serial conversion module 1015 to the compressed HD video data of either shallow
It is encoded and parallel-serial conversion processing, by HD video data conversion into the serial data after coding.
With the data transmission blocks 1016 that are connected of general SERDES coding parallel serial conversion modules 1015, for will be general
The serial HD video data sending that SERDES coding parallel serial conversion modules are sent is to receiving terminal chip 102.
Specifically, general SERDES coding parallel serial conversion modules 1015 send out serial HD video data sending to data
Module 1016 is sent, makes data transmission blocks 1016 by serial HD video data sending to receiving terminal chip 102.
Optionally, shown in Figure 3 in another embodiment of the utility model, receiving terminal chip 102 includes：
Signal receiving module 1021, for receiving the HD video data of the transmission of transmitting terminal chip 101；
The general SERDES decoding serioparallel exchange modules 1022 being connected with signal receiving module 1021, for being received to signal
The HD video data that module 1021 receives are decoded and serioparallel exchange processing；
The data decompression module 1023 being connected with general SERDES decodings serioparallel exchange module 1022, for general
The HD video data that SERDES decoding serioparallel exchange modules 1022 are sent unzip it processing；
The color conversion 1024 being connected with data decompression module 1023, for sending out data decompression module 1023
The HD video data sent carry out color space conversion process；
The protocol groups bag module 1025 being connected with color conversion 1024, for what is sent to color conversion 1024
The transformed HD video data of color space carry out protocol groups bag processing, obtain HD video data packet；
The signal transmitting module 1026 being connected with protocol groups bag module 1025, for send protocol groups bag module 1025
HD video data packet is sent to display device and plays out.
Specifically, the composition structure of receiving terminal chip 102, the internal structure with transmitting terminal chip 101 are balance and symmetries
Structure.Signal receiving module 1021, general SERDES decodings serioparallel exchange module 1022 in receiving terminal chip 102, data solution
The processing that compression module 1023, color conversion 1024, protocol groups bag module 1025, signal transmitting module 1026 are carried out,
It is identical with the processing that corresponding modules are carried out in transmitting terminal chip 101.
It should be noted that when transmitting terminal chip 101 to HD video data carry out color space conversion process mechanism,
After being determined with the compression ratio of either shallow compression processing, the data decompression module 1023 in receiving terminal chip 102, color conversion
The compression ratio and the mechanism of progress color space conversion that 1024 pairs of video datas unzip it, it is necessary to shallow with transmitting terminal
The compression ratio of degree compression processing is identical with the mechanism of color conversion process, so that receiving terminal chip 102 can be recovered correctly
HD video data.
Optionally, it is shown in Figure 4 in another embodiment of the utility model, the system also includes：
The two-way usb signal of two interconnections extends chip 103, is used for transmission control signal.
Specifically, it is the two-way USB2.0 extenders asic chip improved that above-mentioned two-way usb signal, which extends chip 103,
It is specifically used to extend other control signals such as usb signal and the DDC/AUX Jing Guo specially treated.
In kvm system, image is shown by keyboard and mouse control display device.Therefore, the utility model embodiment
Extend chip 103 using a pair of two-way usb signal and realize that the extension to control signal is transmitted so that can be real in kvm system
The control now played to HD video.
Optionally, in another embodiment of the utility model, the two-way usb signal of described two interconnections extends
Chip 103 is connected by a pair of of differential lines.
Specifically, in the utility model embodiment, two two-way usb signals pass through a pair of of differential lines between extending chip
Connection, can be specifically common CAT cables, including CAT5e, CAT6 cable etc..
Optionally, in another embodiment of the utility model, between transmitting terminal chip 101 and receiving terminal chip 102
It is connected by differential lines.
Specifically, in the utility model embodiment, by common between transmitting terminal chip 101 and receiving terminal chip 102
Differential lines connect, and can be specifically common CAT cables, including CAT5e, CAT6 cable etc..
Optionally, in another embodiment of the utility model, between transmitting terminal chip 101 and receiving terminal chip 102
It is connected by 3 pairs or less than 3 pairs of differential lines.
Specifically, in the utility model embodiment, transmitting terminal chip 101 and receiving terminal chip 102 pass through 3 pairs or 3 pairs
Following differential lines connection, is connected by 3 Dui in CAT cables or less than 3 pairs of differential lines.In this way, in CAT
Remaining a pair of differential lines can be used for transmission of control signals, therefore, the letter proposed using the utility model embodiment in cable
Number extend system, only with a CAT cable can more easily realize building for kvm system.
Optionally, in another embodiment of the utility model, transmitting terminal chip 101 and receiving terminal chip 102 are distinguished
For asic chip or fpga chip.
Specifically, in the utility model embodiment, the concrete form of transmitting terminal chip 101 and receiving terminal chip 102 can be with
It is special chip (Application Specific Integrated Circuit, ASIC) or field programmable gate
Array (Field Programmable Gate Array, FPGA) chip.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (6)
1. a kind of signal extends system, which is characterized in that including：
Transmitting terminal chip and the receiving terminal chip being connected with the transmitting terminal chip；
Wherein, the transmitting terminal chip includes：
Data reception module, for receiving HD video data packet；
The protocol logic module being connected with the data reception module, for the HD video received to the data reception module
Data packet carries out agreement unpacking processing, obtains HD video data；
The color space conversion module being connected with the protocol logic module, for the high definition sent to the protocol logic module
Video data carries out color space conversion process；
The either shallow data compressing module being connected with the color space conversion module, for sending out the color space conversion module
It send, carries out the HD video data after color space conversion process, carry out either shallow data compression process；
The general SERDES coding parallel serial conversion modules being connected with the either shallow data compressing module, for the either shallow data
Treated that HD video data are encoded and parallel-serial conversion processing for the compression that compression module is sent；
The data transmission blocks being connected with the general SERDES codings parallel serial conversion module, for the general SERDES to be compiled
The serial HD video data sending that code parallel serial conversion module is sent is to the receiving terminal chip；
The receiving terminal chip, including：
Signal receiving module, for receiving the HD video data that the transmitting terminal chip is sent；
The general SERDES decoding serioparallel exchange modules being connected with the signal receiving module, for the signal receiving module
The HD video data of reception are decoded and serioparallel exchange processing；
The data decompression module being connected with the general SERDES decodings serioparallel exchange module, for the general SERDES
The HD video data that decoding serioparallel exchange module is sent unzip it processing；
The color conversion being connected with the data decompression module, for the high definition sent to the data decompression module
Video data carries out color space conversion process；
The protocol groups bag module being connected with the color conversion, for the color space sent to the color conversion
Transformed HD video data carry out protocol groups bag processing, obtain HD video data packet；
The signal transmitting module being connected with the protocol groups bag module, for the HD video for sending the protocol groups bag module
Data packet is sent to display device and plays out.
2. system according to claim 1, which is characterized in that the system also includes：
The two-way usb signal of two interconnections extends chip, is used for transmission control signal.
3. system according to claim 2, which is characterized in that the two-way usb signal of described two interconnections extends core
Piece is connected by a pair of of differential lines.
4. system according to claim 1, which is characterized in that lead between the transmitting terminal chip and the receiving terminal chip
Cross differential lines connection.
5. system according to claim 4, which is characterized in that lead between the transmitting terminal chip and the receiving terminal chip
Cross 3 pairs or less than 3 pairs of differential lines connection.
6. system according to claim 1, which is characterized in that the transmitting terminal chip and the receiving terminal chip are respectively
Asic chip or fpga chip.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903746.2U CN207399381U (en) | 2017-07-24 | 2017-07-24 | A kind of signal extends system |
| TW106140889A TW201909622A (en) | 2017-07-24 | 2017-11-24 | A signal extension method and system |
| US16/032,600 US10602170B2 (en) | 2017-07-24 | 2018-07-11 | Signal extension method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903746.2U CN207399381U (en) | 2017-07-24 | 2017-07-24 | A kind of signal extends system |
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| Publication Number | Publication Date |
|---|---|
| CN207399381U true CN207399381U (en) | 2018-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720903746.2U Active CN207399381U (en) | 2017-07-24 | 2017-07-24 | A kind of signal extends system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109194889A (en) * | 2018-08-16 | 2019-01-11 | 长芯盛（武汉）科技有限公司 | Low speed signal conversion module for DP interface |
-
2017
- 2017-07-24 CN CN201720903746.2U patent/CN207399381U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109194889A (en) * | 2018-08-16 | 2019-01-11 | 长芯盛（武汉）科技有限公司 | Low speed signal conversion module for DP interface |
| CN109194889B (en) * | 2018-08-16 | 2020-11-20 | 长芯盛（武汉）科技有限公司 | Low-speed signal conversion module for DP interface |
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