CN2922341Y - Video meeting terminal capable of realizing high-definition rideo signal input and output - Google Patents
Video meeting terminal capable of realizing high-definition rideo signal input and output Download PDFInfo
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- CN2922341Y CN2922341Y CN 200620123839 CN200620123839U CN2922341Y CN 2922341 Y CN2922341 Y CN 2922341Y CN 200620123839 CN200620123839 CN 200620123839 CN 200620123839 U CN200620123839 U CN 200620123839U CN 2922341 Y CN2922341 Y CN 2922341Y
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Abstract
The utility model relates to the multimedia communication technology of communication field, and discloses a video meeting terminal capable of realizing high-definition video signal input and output, which comprises a video input interface, a video decoder, a video compressing module, a video decompressing module, a video encoder and a video output interface; the video input interface is a simulated high-definition video input interface; the video decoder is a high-definition video decoder converting a simulated high-definition video signal into a digital high-definition video signal; the video encoder is a high-definition video encoder converting a digital high-definition video signal into a simulated high-definition video signal; the video output interface is a high-definition video output interface. Therefore, the video meeting terminal can support the input and output of the high-definition video signal by way of the utility model, so that the image quality can be tremendously improved by coordinating with a high-definition digital TV.
Description
Technical field
The utility model relates to the multimedia communication technology of communication field, specifically is a kind of video conference terminal of realizing the high definition video signal input and output.
Background technology
At present, the finding video conference terminal is generally exported the composite video signal of PAL/NTSC standard on the market, and the resolution of PAL vision signal is 720*576, and the resolution of ntsc video signal is 720*480.The resolution of the composite video signal of these two kinds of simulations is enough for the simulated television that has only 400 line effective resolutions.
But along with the continuous development of new technology new technology, the Digital Television of high definition occurs gradually and will dominate later TV market.For the high definition digital television that resolution can reach 1080 lines, the resolution of the PAL/NTSC composite video signal of video conference terminal output is obviously not enough, can not embody the picture effect of high definition digital television.
Must to allow video conference terminal can support the vision signal of high definition video form, make the screen resolution of its input, output can mate high definition digital television, so just can obtain the video conference picture of high definition, embody the advantage of high definition digital television.
Accompanying drawing 1 is a typical video conference terminal schematic block diagram.As seen from the figure, the current video conference terminal mainly uses the Analog Composite Video interface to finish the input and the output of image.Use Analog Composite Video input, output interface, have following problem:
1, image resolution ratio is lower, can not support that image resolution ratio is the input and the output of high definition video pictures such as 1280*720,1920*1080, does not match with the high definition digital television of following main flow.
2, video input, output all are interlaced video signals, and image refresh rate is low to cause image that flickering is arranged, and watches for a long time making eye fatigue easily.
3, analog composite video signal is disturbed by other signal of telecommunication easily, makes interference phenomenons such as ripple, snow to occur on the image.
High definition digital television technical development at present is very fast, and its application is also day by day extensive.Video conference terminal adopts high definition video signal can solve above-mentioned three problems as the video input and output.Therefore be necessary the input and the output that make video conference terminal can support high definition video signal.
The utility model content
The purpose of this utility model is the advantage of utilizing the high definition video treatment technology to combine with video conference terminal, improve the image resolution ratio of video conference terminal input, output, improve the vision signal antijamming capability, thereby improve the image quality of video conference.A kind of video conference terminal of realizing the high definition video signal input and output specifically is provided.
The key of technical scheme described in the utility model is to utilize existing high definition video interfacing, high definition video encoding and decoding technology and high definition video compression and the application of decompression technique on video conference terminal, realize that video conference terminal is connected with high definition video signal between peripheral hardware, improve the screen resolution of video conference, be complementary with high definition digital television, to obtain high-quality video conference picture.
The utility model specifically is achieved in that
A kind of video conference terminal of realizing the high definition video signal input and output comprises: video input interface, Video Decoder, video compressing module, video decompression module, video encoder, video output interface;
It is characterized in that:
Described video input interface is simulation high definition video input interface;
Described Video Decoder converts the high definition video decoder of digital high-definition vision signal to for simulating high definition video signal;
Described video encoder is for converting the digital high-definition vision signal to the high definition video encoder of simulation high definition video signal;
Described video output interface is the high definition video output interface.
Described video compressing module is for supporting can high definition video compressed high definition video compressing module;
Described video decompression module is the high definition video decompression module of supporting can high definition video to decompress.
Described simulation high definition video input interface includes but not limited to component aberration video line by line scan aberration input interface, interlacing scan aberration input interface and component vide tristimulus signals interface;
Described high definition video output interface includes but not limited to component aberration video line by line scan aberration input interface, line by line scan aberration input interface and component vide tristimulus signals interface.
The digital high-definition video input interface;
The digital high-definition video output interface;
Described digital high-definition video input interface links to each other with the high definition video compression module;
Described digital high-definition video output interface links to each other with the high definition video decompression module.
Adopt the utility model, video conference terminal can support the vision signal input and output of high definition, match, thereby improved the quality of picture widely with high definition digital television.
Description of drawings
Fig. 1 is typical video conference terminal schematic block diagram;
Fig. 2 is the utility model high definition video conference terminal schematic block diagram;
Fig. 3 is the utility model high definition video conference terminal embodiment video section schematic block diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated;
As shown in Figure 2, compared to Figure 1, the utility model comprises following improvement:
1, the composite video input interface a of former video conference terminal simulates high definition video input interface A instead, this interface A includes but not limited to line by line scan component aberration video, and aberration is imported (YPbPr) interface, the interlacing scan aberration is imported (YCbCr) interface and component vide tristimulus signals (RGB, red (RED), green (GREEN), blue (BLUE)) interface;
2, the composite video decoder b of former video conference terminal makes high definition video decoder B into, and this high definition video decoder B will simulate high definition video signal and convert the digital high-definition vision signal to;
3, the composite video output interface f of former video conference terminal makes high definition video output interface F into, and this interface F includes but not limited to component aberration video YPbPr interface, YCbCr interface and component vide rgb interface;
4, the composite video encoder e of former video conference terminal makes high definition video encoder E into, and this high definition video encoder E converts the digital high-definition vision signal to the simulation high definition video signal;
5, the video compressing module c of former video conference terminal and video decompression module d support instead and can compress and the high definition video compression module C and the high definition video decompression module D that decompress by high definition video, and the calculation process ability of module C and D will be much higher than the calculation process ability of module c and d respectively.
6, in addition, in order to allow the high definition video conference terminal directly support digital high definition video signal, digital high-definition video input interface G and digital high-definition video output interface H have been increased.
Wherein 1,2,3,4 in the scheme makes video conference terminal realize the input and output function of simulation high definition video signal, the 6th input and output function that makes that video conference terminal is realized the digital high-definition vision signal.A high definition video conference terminal can not have 1,2,3,4, only supports the input and output function of digital high definition video signal, does not perhaps have the 6th, only supports the input and output function of simulation high definition video signal; Also can all have by all items, support the signal input of simulation high definition video and the input and the output of output and digital high-definition vision signal simultaneously.
Adopt the video conference terminal of high definition video interfacing, high definition video encoding and decoding art designs and high definition video compression and decompression technology can be directly and high definition pick-up head, high definition digital television machine be used.Embodiment sees also accompanying drawing 3.
Because the audio-frequency module of high definition video conference terminal part and communication module part can adopt the module of existing video conference terminal, so not specified (NS) mainly illustrates video section:
1, high definition component aberration vision signal YPbPr is sent to ADV7401 through the YPbPr input interface, ADV7401 is a high definition video decoder, to simulate high definition video signal and convert the digital high-definition vision signal to, and give Media Processor-1 then and carry out the video compression computing.
2, digital high-definition vision signal HDMI is input to AD9880, and AD9880 is a HDMI receiver, converts the serial digital high definition video signal to the Parallel Digital high definition video signal, gives Media Processor-1 then and carries out the video compression computing.
3, Media Processor-2 carries out decompression operation with the compressed video data of remote site, and output digital high-definition vision signal is given AD9889 and ADV7311.
4, AD9889 is a HDMI transmitter, converts the Parallel Digital high definition video signal digital signal output of serial differential to, thereby exports the digital high-definition vision signal.
5, ADV7311 is a high definition video encoder, converts the digital high-definition vision signal to the simulation high definition video signal, through YPbPr output interface output simulation high definition video signal.
Above-mentioned is the video section of a high definition video conference terminal, adds each audio-frequency module and communication module, has just constituted a complete high sharpness video conference terminal.
It is a plurality of to need to prove that various types of input and output among Fig. 1 to Fig. 3 can have, and only provides one in the drawings as signal.
Claims (4)
1, a kind of video conference terminal of realizing the high definition video signal input and output comprises: video input interface, Video Decoder, video compressing module, video decompression module, video encoder, video output interface;
It is characterized in that:
Described video input interface is simulation high definition video input interface;
Described Video Decoder converts the high definition video decoder of digital high-definition vision signal to for simulating high definition video signal;
Described video encoder is for converting the digital high-definition vision signal to the high definition video encoder of simulation high definition video signal;
Described video output interface is the high definition video output interface.
2, the video conference terminal of realization high definition video signal as claimed in claim 1 input and output is characterized in that:
Described video compressing module is for supporting can high definition video compressed high definition video compressing module;
Described video decompression module is the high definition video decompression module of supporting can high definition video to decompress.
3, the video conference terminal of realization high definition video signal as claimed in claim 1 or 2 input and output is characterized in that:
Described simulation high definition video input interface includes but not limited to component aberration video line by line scan aberration input interface, interlacing scan aberration input interface and component vide tristimulus signals interface;
Described high definition video output interface includes but not limited to component aberration video line by line scan aberration input interface, line by line scan aberration input interface and component vide tristimulus signals interface.
4, the video conference terminal of realization high definition video signal as claimed in claim 2 input and output is characterized in that, also comprises:
The digital high-definition video input interface;
The digital high-definition video output interface;
Described digital high-definition video input interface links to each other with the high definition video compression module;
Described digital high-definition video output interface links to each other with the high definition video decompression module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123839 CN2922341Y (en) | 2006-07-13 | 2006-07-13 | Video meeting terminal capable of realizing high-definition rideo signal input and output |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123839 CN2922341Y (en) | 2006-07-13 | 2006-07-13 | Video meeting terminal capable of realizing high-definition rideo signal input and output |
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| Publication Number | Publication Date |
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| CN2922341Y true CN2922341Y (en) | 2007-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620123839 Expired - Lifetime CN2922341Y (en) | 2006-07-13 | 2006-07-13 | Video meeting terminal capable of realizing high-definition rideo signal input and output |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533295A (en) * | 2013-10-15 | 2014-01-22 | 陈海华 | Full high-definition video meeting system |
| CN110322421A (en) * | 2019-07-17 | 2019-10-11 | 刘恩希 | One kind being based on multimedia information processing method |
-
2006
- 2006-07-13 CN CN 200620123839 patent/CN2922341Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533295A (en) * | 2013-10-15 | 2014-01-22 | 陈海华 | Full high-definition video meeting system |
| CN110322421A (en) * | 2019-07-17 | 2019-10-11 | 刘恩希 | One kind being based on multimedia information processing method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070711 |
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| EXPY | Termination of patent right or utility model |