CN101409816A - Method for extending HDMI and/or DVI interface connection long distance - Google Patents
Method for extending HDMI and/or DVI interface connection long distance Download PDFInfo
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- CN101409816A CN101409816A CNA200810305090XA CN200810305090A CN101409816A CN 101409816 A CN101409816 A CN 101409816A CN A200810305090X A CNA200810305090X A CN A200810305090XA CN 200810305090 A CN200810305090 A CN 200810305090A CN 101409816 A CN101409816 A CN 101409816A
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Abstract
The invention relates to a video signal transmission method, in particular to a method for extending the long connection distance of an HDMI and/or DVI interface. The invention comprises an HDMI and/or DVI cable, a video source and one or a plurality of display devices; both the video source and the display devices are provided with the HDMI and/or DVI interface. The invention is characterized in that the method also comprises a signal emitter and one or a plurality of signal receivers which are connected by UTP cables; the connection locations between the UTP cables and the signal emitter, as well as the signal receivers, are provided with UTP interfaces; the signal emitter and the video source are connected by the HDMI and/or DVI cable through the HDMI and/or DVI interface; the signal receivers and the video source are connected by the HDMI and/or DVI cables through the HDMI and/or DVI interface. Not only are the advantages of the HDMI and/or DVI cable transmission maintained, but also the goal of long distance transmission is achieved.
Description
Technical field
The present invention relates to a kind of video-signal transmission method, especially relate to the method for a kind of extending HDMI and/or DVI interface connection long distance.
Background technology
HDMI and/or DVI interface are that design is used for by HDMI and/or the total digitalization of DVI cable real-time Transmission, the clear degree video/audio data of non-compression high definition.Because it requires high bandwidth, its transmission range is limited.In order to reach longer distance, more accurate transmission, the patent No. is that 200710163259 patent of invention discloses a kind of method and device that improves receiving performance of high-definition multimedia interface, and it comprises high pass filter, signal compensator and adder.It is characterized in that, produce compensation rate, the HDMI signal after being compensated with original HDMI signal stack according to the frequency of HDMI signal and quality.By the method for the invention and device, the HDMI signal of receiving that can achieve a butt joint in real time, easily carries out adaptive equalization, reception and processing for the HDMI signal under long distance and the mal-condition have crucial effect, can promote the quality of received signal preferably.The patent No. is the United States Patent (USP) Display node for use in an audiovisual signal routingand distribution system (the demonstration node that is used for audio visual signal route and distribution system) of US20060242669.The patent No. is the U.S. Pat 20060117371 Method for effectively implementing amulti-room television system (for effectively implementing the method for a multicell television system) of US20060117371.The patent No. is the United States Patent (USP) Method and apparatus for conversion betweenquasi-differential signaling and true differential signaling (method and the instrument changed between accurate differential signal and the true differential signal) of US20070103204.All have a shortcoming, the video/audio quality descends usually in the process of compression and decompress(ion) exactly.In addition, realize that the cost of compressing at high proportion is very expensive usually.
Summary of the invention
The present invention mainly be solve that the existing in prior technology signal transmission distance is long, video quality descends, costs dearly etc. in the transmission course technical problem, the technical scheme that a kind of transmission range is long, transmission quality is high, cheap is provided.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: the method for a kind of extending HDMI and/or DVI interface connection long distance, comprise HDMI and/or DVI cable, video source and one or several displays, be equipped with HDMI and/or DVI interface on video source and the display, it is characterized in that this method also includes a signal transmitter and one or several signal receivers, and it is continuous by the UTP cable, the junction of UTP cable and signal transmitter and signal receiver is provided with the UTP interface, link to each other by HDMI and/or DVI cable by HDMI and/or DVI interface between signal transmitter and the video source, link to each other by HDMI and/or DVI cable by HDMI and/or DVI interface between signal receiver and the video source.Because the transmission range of HDMI and DVI cable is shorter, in the signal transmission of long distance, transmit as intermediary by the UTP cable, the acting in conjunction of UTP cable and signal receiver and signal transmitter can be accomplished longer distance and transmission better quality.And HDMI and/or DVI cable and signal source and display remain and directly link to each other.Like this, both keep the advantage of HDMI and/or DVI cable transmission, also reached the purpose of long Distance Transmission.
As preferably, described signal receiver is one, all is provided with the UTP interface on the signal receiver, and is provided with it UTP interface one to one on the signal transmitter, and the UTP interface links to each other by the UTP cable is corresponding.This form is suitable for the situation of individual monitor.
As preferably, described signal receiver is several, all is provided with the UTP interface on each signal receiver, and is provided with it UTP interface one to one on the signal transmitter, and the UTP interface links to each other by the UTP cable is corresponding.This situation is suitable for the situation of a video source and a plurality of displays, has reached multi-display, shows the effect of a video source signal.
As preferably, described signal receiver is several, all be provided with the UTP interface on each signal receiver, be provided with a signal distributor between signal transmitter and the signal receiver, it be provided with respectively with signal transmitter and signal receiver on UTP interface UTP interface one to one, the UTP interface links to each other by the UTP cable is corresponding.Distributor can strengthen power system capacity, realizes that more display shows the vision signal of same signal source simultaneously.
As preferably, described UTP cable is a utp cable.This cable is a kind of comparatively cheap material, but its performance can reach the needs of kind of video transmission fully.
As preferably, described signal transmitter and signal receiver comprise driver, signal receiver and/or signal converter respectively.Because the transmission feature of HDMI is not need it is carried out conversion of signals, and the transmission of UTP cable must be an analog signal, so signal converter sometimes needs in native system.If but HDMI transmitted itself is exactly analog signal, with regard to the undesired signal transducer.
As preferably, described signal distributor is provided with driver, signal receiver and/or signal converter.Because the transmission feature of HDMI is not need it is carried out conversion of signals, and the transmission of UTP cable must be an analog signal, so signal converter sometimes needs in native system.If but HDMI transmitted itself is exactly analog signal, with regard to the undesired signal transducer.
As preferably, establish encoder on the described signal distributor, decode and encoded video and control signal by encoder.Therefore can produce suitable video and control signal again.
As preferably, described video source can be computer, DVD player, HD DVD player, blue-ray DVD player, CATV set-top-box or satellite television vision signal that set-top box produces.
The beneficial effect that brings of the present invention is that the present invention utilizes unshielded twisted pair (UTP) to transmit total digitalization, high definition video/voice data between HDMI and/or DVI equipment.Compare with the STP cable, UTP cable considerably cheaper, it is easier to install, and the more important thing is, and it can use in most building the good ready-made cable of cloth in advance.
Therefore, the present invention has that transmission range is long, transmission quality is high, lower-price characteristic.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present invention;
Accompanying drawing 2 is a kind of structural representations of the present invention;
Accompanying drawing 3 is a kind of structural representations of the present invention.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1:
In Fig. 1, video source 101 is as video-out port by HDMI or DVI interface 102.Generally, the source is a DVD player, HD DVD player, blue-ray DVD player, CATV set-top-box, satellite television set-top box or computer.Be equipped with suitable cable 103 between the output port 102 of video source 101 and the input port 104 of sender unit 105.Generally, suitable cable 103 is HDMI cables, DVI cable, HDMI to DVI transit cable, or DVI to HDMI transit cable.Comprise driver and/or transducer based on sender unit 105 of the present invention, they are used for realizing by 107 transmission of UTP cable and receiving digital video and control signal.Generally, it has a HDMI or DVI (depend at application) interface 104, as the input port of video and control signal and the UTP interface 106 of one or two RJ45, as the output port of video and control signal.UTP cable 107, normally one or two 5 classes, 6 classes, 7 classes or other special UTP cables.Comprise driver and/or transducer based on signal receiver 109 of the present invention, they are used for realizing by 107 transmission of UTP cable and receiving digital video and control signal.Generally, signal receiver 109 has the UTP interface 108 of one or two RJ45, as the input port of video and control signal and HDMI or DVI (depend at application) interface 110, as the output port of video and control signal.Be equipped with suitable cable 111 between the input port 112 of display 113 and the output port 110 of signal receiver 109.Generally, cable 111 is HDMI cables, DVI cable, HDMI to DVI transit cable, or DVI to HDMI transit cable.Display 113 is the contents for display application, as video.Generally, display is a high definition TV, comprises LCD TV, plasm TV, and DLP TV, or computer monitor comprise LCD and other flat-panel monitor.
Embodiment 2
In Fig. 2, video source 201 is as video-out port by HDMI or DVI interface 202.Usually, video source 201 is DVD player, HD DVD player, blue-ray DVD player, CATV set-top-box, satellite television set-top box or computer.Be equipped with suitable cable 203 between the output port 202 of video source 201 and the input port 204 of sender unit 205.Generally, suitable cable 203 is HDMI cables, DVI cable, HDMI to DVI transit cable, or DVI to HDMI transit cable.Comprise driver and/or transducer based on sender unit 205 of the present invention, they are used for realizing by 207 transmission of UTP cable and receiving digital video and control signal.Generally, it has a HDMI or DVI (depend at application) interface 204, as the input port of video and control signal and the UTP interface 206 of a plurality of RJ45, as the output port of video and control signal.UTP cable 207, common one or two 5 classes, 6 classes, 7 classes or other special UTP cables.Comprise driver and/or transducer based on signal receiver 208 of the present invention, they are used for realizing by 207 transmission of UTP cable and receiving digital video and control signal.Generally, signal receiver 208 has the UTP interface 209 of one or two RJ45, as the input port of video and control signal and HDMI or DVI (depend at application) interface 210, as the output port of video and control signal.Be equipped with suitable cable 211 between the input port 213 of display 212 and the output port 210 of signal receiver 208.Generally, cable 211 is HDMI cables, DVI cable, HDMI to DVI transit cable, or DVI to HDMI transit cable.Display 212 is the contents for display application, as video.Generally, display is a high definition TV, comprises LCD TV, plasm TV, and DLP TV, or computer monitor comprise LCD and other flat-panel monitor.
Embodiment 3
Transmission range is long, transmission quality is high so the present invention has, lower-price characteristic.
Claims (10)
1. the method for extending HDMI and/or DVI interface connection long distance, comprise HDMI and/or DVI cable, video source and one or several displays, be equipped with HDMI and/or DVI interface on video source and the display, it is characterized in that this method also includes a sender unit and one or several signal receivers, and it is continuous by the UTP cable, the junction of UTP cable and sender unit and signal receiver is provided with the UTP interface, link to each other by HDMI and/or DVI cable by HDMI and/or DVI interface between sender unit and the video source, link to each other by HDMI and/or DVI cable by HDMI and/or DVI interface between signal receiver and the video source.
2. the method for a kind of extending HDMI according to claim 1 and/or DVI interface connection long distance, it is characterized in that described signal receiver is one, all be provided with the UTP interface on the signal receiver, and on sender unit, being provided with it UTP interface one to one, the UTP interface links to each other by the UTP cable is corresponding.
3. the method for a kind of extending HDMI according to claim 1 and/or DVI interface connection long distance, it is characterized in that described signal receiver is several, all be provided with the UTP interface on each signal receiver, and on sender unit, being provided with it UTP interface one to one, the UTP interface links to each other by the UTP cable is corresponding.
4. the method for a kind of extending HDMI according to claim 1 and/or DVI interface connection long distance, it is characterized in that described signal receiver is several, all be provided with the UTP interface on each signal receiver, be provided with a signal distributor between sender unit and the signal receiver, it be provided with respectively with sender unit and signal receiver on UTP interface UTP interface one to one, the UTP interface links to each other by the UTP cable is corresponding.
5. according to the method for claim 1 or 2 or 3 or 4 described a kind of extending HDMIs and/or DVI interface connection long distance, it is characterized in that described UTP cable is a utp cable.
6. according to the method for claim 1 or 2 or 3 or 4 described a kind of extending HDMIs and/or DVI interface connection long distance, it is characterized in that described sender unit and signal receiver comprise driver, receiver and/or signal converter respectively.
7. the method for a kind of extending HDMI according to claim 4 and/or DVI interface connection long distance is characterized in that described signal distributor is provided with driver, receiver and/or transducer.
8. according to the method for claim 4 or 7 described a kind of extending HDMIs and/or DVI interface connection long distance, it is characterized in that establishing decoder on the described signal distributor, decode and encoded video and control signal by encoder.
9. according to the method for claim 1 or 2 or 3 or 4 described a kind of extending HDMIs and/or DVI interface connection long distance, it is characterized in that described video source, can be computer, DVD player, the HD DVD player, blue-ray DVD player, CATV set-top-box or satellite television vision signal that set-top box produces.
10. according to the method for claim 1 or 2 or 3 or 4 described a kind of extending HDMIs and/or DVI interface connection long distance, it is characterized in that described display, can be LCD TV, plasm TV, DLP TV or have HDMI or the LCD computer display of DVI interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810305090XA CN101409816A (en) | 2008-10-22 | 2008-10-22 | Method for extending HDMI and/or DVI interface connection long distance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810305090XA CN101409816A (en) | 2008-10-22 | 2008-10-22 | Method for extending HDMI and/or DVI interface connection long distance |
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| CN101409816A true CN101409816A (en) | 2009-04-15 |
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| CNA200810305090XA Pending CN101409816A (en) | 2008-10-22 | 2008-10-22 | Method for extending HDMI and/or DVI interface connection long distance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447867A (en) * | 2010-10-05 | 2012-05-09 | 宏正自动科技股份有限公司 | Signal extender system and signal extender thereof |
| CN103024333A (en) * | 2012-12-27 | 2013-04-03 | 中航(苏州)雷达与电子技术有限公司 | Long-distance video transmission method |
| CN104469459A (en) * | 2014-12-12 | 2015-03-25 | 成都德芯数字科技有限公司 | OTT audio and video modulation circuit and modulation output method of OTT audio and video modulation circuit |
-
2008
- 2008-10-22 CN CNA200810305090XA patent/CN101409816A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447867A (en) * | 2010-10-05 | 2012-05-09 | 宏正自动科技股份有限公司 | Signal extender system and signal extender thereof |
| CN102447867B (en) * | 2010-10-05 | 2013-10-09 | 宏正自动科技股份有限公司 | Signal extender system and signal extender thereof |
| US8804853B2 (en) | 2010-10-05 | 2014-08-12 | Aten International Co., Ltd. | Signal extender system and signal extender thereof |
| TWI457000B (en) * | 2010-10-05 | 2014-10-11 | Aten Int Co Ltd | Signal extender system and signal extender and transmitting module and receiving module thereof |
| CN103024333A (en) * | 2012-12-27 | 2013-04-03 | 中航(苏州)雷达与电子技术有限公司 | Long-distance video transmission method |
| CN104469459A (en) * | 2014-12-12 | 2015-03-25 | 成都德芯数字科技有限公司 | OTT audio and video modulation circuit and modulation output method of OTT audio and video modulation circuit |
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Open date: 20090415 |