CN101867400A - Display terminal realization system and method thereof based on non-compressed wireless high-definition transmission technology - Google Patents
Display terminal realization system and method thereof based on non-compressed wireless high-definition transmission technology Download PDFInfo
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Abstract
The invention relates to a display terminal realization system based on the non-compressed wireless high-definition transmission technology, which comprises an ultra-wide-band modulator, a multi-antenna sending module, a multi-antenna receiving module, an ultra-wide-band demodulator and a high-definition signal processor. A method comprises the following steps: firstly, modulating non-compressed high-definition signals to be transmitted; then, adopting the MIMO technology for sending and receiving the high-definition content; and finally, routing the high-definition signals to a processor inside a flat television to realize the terminal display of high-definition images. The invention has the advantages of low power consumption, low complexity, high positioning precision and low cost.
Description
Technical field
The present invention relates to wireless transmission and high definition panel Display Technique, especially system and the method thereof by provide the non-compression transmission manner of WirelessHD to come to provide for display terminal efficient program transmission at equipment room, specifically a kind of display terminal based on non-compressed wireless high-definition transmission technology is realized system and method thereof.
Background technology
At present, in the individual display terminal Radio Transmission Technology, mainly adopt standard and technology such as similar 802.11a/b/g, the transmission bandwidth of the wireless signal of being realized is smaller.The high-speed radiocommunication technology can realize the several meters data communication to tens of meters closer distance as a kind of new wireless technology, has caused people's common concern, and this short distance wireless communication technology not only requires speed fast, and requires that friendly interface is arranged.Because more and more by the household appliances that cable is connected with television set, the wiring between the various household electrical appliances is difficulty more, signal disturbs greatly, is easy to generate potential safety hazard, and the demand that the wireless penetration of communicating by letter between audio-visual products thus connects is also urgent day by day.
Yet, the wireless penetration of communicating by letter between existing audio-visual products connects and is difficult for realizing, common wireless transmission method is that high-definition signal is carried out lossy compression method, and then coded modulation transmission, the imperfection that can cause the high-definition signal content like this, in decompression process, cause losing of partial information, and then cause the decline of video quality.Because the wireless transmission of existing Signal Compression mode adopts narrow band width wireless communication systems, the influence of multipath fading is big, and intersymbol interference and interchannel interference problem are serious.
Summary of the invention
The objective of the invention is to adopt the wireless transmission of Signal Compression mode at existing program transmission mode, the multipath fading influence of narrow band width wireless communication systems is big, my problem that intersymbol interference and interchannel interference problem are serious proposes a kind of display terminal based on non-compressed wireless high-definition transmission technology and realizes system and method thereof.
Technical scheme of the present invention is:
A kind of display terminal based on non-compressed wireless high-definition transmission technology is realized system, it comprises super bandwidth modulator, many antennas transmitter module, many antennas receiver module, super bandwidth demodulator and high-definition signal processor, described super bandwidth modulator is as realizing that based on the display terminal of non-compressed wireless high-definition transmission technology the input of system receives the non-compression high definition signal that send in the high-definition signal source, the signal output part of super bandwidth modulator links to each other with the signal receiving end of many antennas transmitter module, the signal output part of many antennas transmitter module is launched modulated non-compression high definition signal by transmitting antenna, many antennas receiver module receives the non-compression high definition signal that transmitting antenna sends by reception antenna, the signal output part of many antennas receiver module links to each other with the signal input part of super bandwidth demodulator, the signal output part of super bandwidth demodulator links to each other with the signal input part of high-definition signal processor, the signal output part of high-definition signal processor is as realizing that based on the display terminal of non-compressed wireless high-definition transmission technology the output of system links to each other with the display screen of panel TV, shows the high-definition image signal.
High-definition signal processor of the present invention is installed in panel TV inside.
High-definition signal of the present invention source is the high-grade video card output of high definition player, Blu-ray player or computer.
A kind of display terminal implementation method based on non-compressed wireless high-definition transmission technology, it may further comprise the steps:
(a). adopt super bandwidth modulator to receive the non-compression high definition signal that send in the high-definition signal source, surpassing the bandwidth modulation then is the UWB modulation;
(b). the non-compression high definition signal after adopting multi-antenna technology MIMO to modulation sends and receives, be that many antennas transmitter module is launched modulated non-compression high definition signal by transmitting antenna, many antennas receiver module receives the high-definition signal that transmitting antenna sends by reception antenna;
(c). it is the UWB demodulation that the modulated non-compression high definition signal that super bandwidth demodulator receives many antennas receiver module surpasses the bandwidth demodulation;
(d). adopt the high-definition signal processor of panel TV inside that signal is handled well, comprise the input selection of signal inner passage switching, color space transformation and Gamma treatment for correcting, and show output high-definition image signal by the display screen of panel TV.
High-definition signal of the present invention source is the high-grade video card output of high definition player, Blu-ray player or computer.
Beneficial effect of the present invention:
The present invention is a platform with the large high-definition screen panel TV, and integrated wireless high-definition image transmission technology provides program transmission by the non-compression transmission manner of WirelessHD is provided at equipment room for display terminal.Mainly be in order to satisfy on the market demand day by day to the high definition program audience, again for the consumer considers, minimizing is to the rewiring and the decoration in room as far as possible simultaneously.And the present invention is a kind of harmless high-definition signal transmission system, can guarantee the high fidelity of programme content quality, to bring real visual enjoyment to the consumer.
The present invention adopts the MIMO technology that spectrum efficiency is risen to new level, and the UWB transmission technology that foundation adopts realizes higher data throughput or bigger coverage rate, promptly adopt multi-channel rf carrier transmission more information, improve spectrum efficiency by mode at same all signals of channel that take same band.Can realize wireless non-compression transmission based on the high-definition signal of this technology, be different from the wireless transmission of the compress mode of former high-definition signal, in decompression process, cause losing of partial information.The harmless high-definition signal transmission means of native system, efficiency of transmission height, good reliability.
Description of drawings
Fig. 1 is a theory diagram of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Ultra broadband (Ultra Wide Bandwidth:UWB) technology is a kind of communication mode that the impulse wave very short by a series of cycles, that frequency is very high is realized, is also referred to as the pulse communication technology usually.Compare with the traditional narrow technology, super-broadband tech has following several advantage: data rate at a high speed, abundant multipath otherness, extremely low power consumption, and also the realization of multiple access is also simpler.These characteristics make super-broadband tech become a kind of possible technique of short-distance wireless communication.
Many antennas (MIMO) technology can significantly improve the capability of communication system and the availability of frequency spectrum under the situation that does not increase bandwidth and transmitting power.Mimo system all adopts many antennas at transmitting terminal and receiving terminal, utilizes the multipath feature of wireless channel to suppress channel fading.MIMO looks as a whole be optimized with multipath wireless channel and emission, reception, thereby realizes the high message capacity and the availability of frequency spectrum, can improve the reliability of channel simultaneously, reduces the error rate.Mimo system uses a plurality of antennas at transmitting-receiving two-end, each dual-mode antenna between form a MIMO subchannel, suppose that transmitting terminal has M transmitting antenna, receiving terminal has N reception antenna, then between transmitting-receiving, just formed the channel matrix H of N * M, t at a time, channel matrix H is:
Wherein the element in the H battle array is the gain between any a pair of corresponding dual-mode antenna.
As shown in Figure 1, a kind of display terminal based on non-compressed wireless high-definition transmission technology is realized system, does it comprise that (model can be super bandwidth modulator?), (model can be many antennas transmitter module?), (model can be many antennas receiver module?), (model can be super bandwidth demodulator?) and the high-definition signal processor (model can be?), described super bandwidth modulator is as realizing that based on the display terminal of non-compressed wireless high-definition transmission technology the input of system receives the non-compression high definition signal that send in the high-definition signal source, described high-definition signal source is a high definition player, high-grade video card output of Blu-ray player or computer or the like, the signal output part of super bandwidth modulator links to each other with the signal receiving end of many antennas transmitter module, the signal output part of many antennas transmitter module is launched modulated non-compression high definition signal by transmitting antenna, many antennas receiver module receives the non-compression high definition signal that transmitting antenna sends by reception antenna, the signal output part of many antennas receiver module links to each other with the signal input part of super bandwidth demodulator, the signal output part of super bandwidth demodulator links to each other with the inner signal input part that gets the high-definition signal processor of panel TV, the signal output part of high-definition signal processor is as realizing that based on the display terminal of non-compressed wireless high-definition transmission technology the output of system links to each other with the display screen of panel TV, shows the high-definition image signal.
A kind of display terminal implementation method based on non-compressed wireless high-definition transmission technology may further comprise the steps:
(a). adopt super bandwidth modulator to receive the non-compression high definition signal that send in the high-definition signal source, surpassing the bandwidth modulation then is the UWB modulation;
(b). the non-compression high definition signal after adopting multi-antenna technology MIMO to modulation sends and receives, be that many antennas transmitter module is launched modulated non-compression high definition signal by transmitting antenna, many antennas receiver module receives the high-definition signal that transmitting antenna sends by reception antenna;
(c). it is the UWB demodulation that the modulated non-compression high definition signal that super bandwidth demodulator receives many antennas receiver module surpasses the bandwidth demodulation;
(d). adopt the high-definition signal processor of panel TV inside that signal is handled well, comprise the input selection of signal inner passage switching, color space transformation and Gamma treatment for correcting, and show output high-definition image signal by the display screen of panel TV.
The big screen display device that the invention process adopts is full HD display terminal, resolution can be up to the display performance of 1080p, and we have also adopted the HD image enhancement techniques in the image processing of rear end, comprise dynamic image Gamma curve technology, dynamic image colour saturation adjustment technology, adaptability sharpness adjustment technology, adaptability noise cancellation technique, dynamic panel white balance adjustment technology or the like.
Can guarantee reproduction high-definition image content true to nature on the basis of high definition wireless transmission.
It will be more satisfactory solution for computer and ancillary equipment thereof, family expenses audio frequency and video amusement equipment, portable terminal provide high-speed radio to connect that the present invention adopts the UWB technology, cooperate upper-layer protocol to change network topology neatly, both point-to-point connection can be realized, also a plurality of devices interconnect can be realized.The characteristics that UWB has is low in energy consumption, complexity is low, positioning accuracy is high.Therefore, adopt UWB, not only can satisfy the requirement of low cost, low-power consumption, can provide point-device locating information simultaneously as the wireless connections means.The MIMO technology is used for the UWB system has very high link reliability and rate adapted ability, different with narrow band width wireless communication systems, the influence of multipath fading is much smaller in the UWB system, because the pulse that UWB is very narrow causes when multipath transmisstion that in a large number independently the fading signal component can be differentiated, thereby can realize effective multipath signal diversity reception.The MIMO-UWB system can solve harmful intersymbol interference and interchannel interference problem well on time domain, reason is that received signal has good auto-correlation and their cross correlation.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (5)
1. the display terminal based on non-compressed wireless high-definition transmission technology is realized system, it is characterized in that it comprises super bandwidth modulator, many antennas transmitter module, many antennas receiver module, super bandwidth demodulator and high-definition signal processor, described super bandwidth modulator is as realizing that based on the display terminal of non-compressed wireless high-definition transmission technology the input of system receives the non-compression high definition signal that send in the high-definition signal source, the signal output part of super bandwidth modulator links to each other with the signal receiving end of many antennas transmitter module, the signal output part of many antennas transmitter module is launched modulated non-compression high definition signal by transmitting antenna, many antennas receiver module receives the non-compression high definition signal that transmitting antenna sends by reception antenna, the signal output part of many antennas receiver module links to each other with the signal input part of super bandwidth demodulator, the signal output part of super bandwidth demodulator links to each other with the signal input part of high-definition signal processor, the signal output part of high-definition signal processor is as realizing that based on the display terminal of non-compressed wireless high-definition transmission technology the output of system links to each other with the display screen of panel TV, shows the high-definition image signal.
2. the display terminal based on non-compressed wireless high-definition transmission technology according to claim 1 is realized system, it is characterized in that described high-definition signal processor is installed in panel TV inside.
3. the display terminal based on non-compressed wireless high-definition transmission technology according to claim 1 is realized system, it is characterized in that described high-definition signal source is the high-grade video card output of high definition player, Blu-ray player or computer.
4. display terminal implementation method based on non-compressed wireless high-definition transmission technology is characterized in that it may further comprise the steps:
(a). adopt super bandwidth modulator to receive the non-compression high definition signal that send in the high-definition signal source, surpassing the bandwidth modulation then is the UWB modulation;
(b). the non-compression high definition signal after adopting multi-antenna technology MIMO to modulation sends and receives, be that many antennas transmitter module is launched modulated non-compression high definition signal by transmitting antenna, many antennas receiver module receives the high-definition signal that transmitting antenna sends by reception antenna;
(c). it is the UWB demodulation that the modulated non-compression high definition signal that super bandwidth demodulator receives many antennas receiver module surpasses the bandwidth demodulation;
(d). adopt the high-definition signal processor of panel TV inside that signal is handled well, comprise the input selection of signal inner passage switching, color space transformation and Gamma treatment for correcting, and show output high-definition image signal by the display screen of panel TV.
5. the display terminal implementation method based on non-compressed wireless high-definition transmission technology according to claim 4 is characterized in that described high-definition signal source is the high-grade video card output of high definition player, Blu-ray player or computer.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1983216A (en) * | 2005-12-14 | 2007-06-20 | 联想(北京)有限公司 | Wireless displaying system and wireless data transmitter |
| CN101494774A (en) * | 2008-01-23 | 2009-07-29 | 厦门华侨电子股份有限公司 | Non-compression high definition video signal wireless transmission method based on wavelet conversion characteristics |
| CN101861611A (en) * | 2007-09-11 | 2010-10-13 | 高通股份有限公司 | wireless graphics card |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1983216A (en) * | 2005-12-14 | 2007-06-20 | 联想(北京)有限公司 | Wireless displaying system and wireless data transmitter |
| CN101861611A (en) * | 2007-09-11 | 2010-10-13 | 高通股份有限公司 | wireless graphics card |
| CN101494774A (en) * | 2008-01-23 | 2009-07-29 | 厦门华侨电子股份有限公司 | Non-compression high definition video signal wireless transmission method based on wavelet conversion characteristics |
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Application publication date: 20101020 |