CN2686242Y - Apparatus for realizing high-definition digital TV broadcasting with low-resolution programme source - Google Patents
Apparatus for realizing high-definition digital TV broadcasting with low-resolution programme source Download PDFInfo
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- CN2686242Y CN2686242Y CN 200420044291 CN200420044291U CN2686242Y CN 2686242 Y CN2686242 Y CN 2686242Y CN 200420044291 CN200420044291 CN 200420044291 CN 200420044291 U CN200420044291 U CN 200420044291U CN 2686242 Y CN2686242 Y CN 2686242Y
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Abstract
The utility model relates to a device for realizing high-definition digital TV broadcasting with low-resolution program source which increases the quality of films of the digital TV broadcasting with low cost, converts the digital code stream with low resolution to the digital code stream with high definition, increases the resolution and the image quality of the simulation TV, and solves the problem of being short of high-definition signal source. A broadcasting device of the simulation video source is accessed in a simulation video decoder; the simulation video decoder, the broadcasting device of the digital video source, a receiving decoder of the digital satellite and a video server device are separately connected with the device for converting the image resolution and lifting the image quality in series; an encoder used for conducting the compressed encoding for video/audio digit signals is installed to tandem at a multiplexing/scrambling device which generates transport stream (TS) after multiplexing and scrambling the multi-path digital code stream; the transport stream (TS) is transmitted to a subsequent communication channel machine to conduct emission.
Description
Technical field
The utility model relates to treatment conversion low resolution mathematics vision signal in digital television broadcasting (DTV) equipment and realizes the digital TV in high resolution broadcaster to the program source with low resolution of the digital video resolution signal of high definition rank or other resolution.
Background technology
Existing SD digital television broadcasting (SDTV) equipment, the digital television broadcasting that can only play the SD level, the user promptly uses digital TV in high resolution to receive, and also can only reach the effect of Standard Definition Television, does not give full play to the usefulness of HDTV (High-Definition Television).From the course of piloting of HDTV (High-Definition Television), the high copyright fee of the shortage of HDTV (High-Definition Television) program source and HDTV (High-Definition Television) program source greatly limits the development of China's HDTV (High-Definition Television) and popularizes.China's present situation is that the film source of simulated television is abundant, and the film source of SD level is many.The present invention can improve the resolution and the picture quality of simulated television, the bitstream of low resolution can be transferred to the bitstream of high definition level, improves picture quality simultaneously, solves the problem that the high-definition signal source lacks.The existing display unit of China seldom reaches high definition highest resolution 1920 * 1080.PDP, rear-projection, LCD TV and computer monitor are supported 1280 * 768 60Hz WXGA pattern line by line mostly, and according to the actual conditions of China, present stage also can be realized the digital broadcasting of WXGA earlier.
Chinese patent ZL99124605.5 has announced " a kind of high-definition digital TV transmission system ".It is made up of source encoding, chnnel coding, rf modulations three parts.Source encoding is carried out basic stream of compressed encoding output and enhanced flow with picture signal with the MPEG-2 technology, corresponding to single-definition digital television (SDTV) and high definition digital television (HDTV) enhancing signal, above-mentioned signal carries out respectively carrying out rf modulations after COFDM coded modulation, the 64QAM coded modulation, in a radio-frequency channel, send the user to, having realized the compatibility of single-definition digital television (SDTV), is a kind of efficient, high-performance, multiduty high-definition digital TV transmission system.Its weak point is: it fails to solve the problem that the anolog TV signals that film source is abundant are converted to high-definition digital video/audio signal.
The utility model content
The purpose of this utility model is to overcome above-mentioned weak point of the prior art and a kind of sheet source quality that improves digital television broadcasting with cheap cost is provided, the bitstream that the bitstream of low resolution is transferred to the high definition level, improve the resolution and the picture quality of simulated television, solve the high-definition signal source and lack problem, with the program source realization digital TV in high resolution broadcaster of low resolution.
The purpose of this utility model can reach by following measure:
This program source with low resolution realizes the digital TV in high resolution broadcaster, its special character is: the analog video source playing device inserts the analog video decoder device, the analog video decoder device, the digital video source playing device, digital satellite receives decoding device, Video service apparatus each connect respectively image resolution ratio conversion and image quality lifting device, be used for the digital signal of video/audio is carried out tandem behind the encoder apparatus of compressed encoding produces transport stream (TS) after the compound and scrambling to the multichannel bitstream multiplexing/scrambling apparatus, transport stream (TS) is sent to the subsequent communication channel machine and launches.
The purpose of this utility model can also reach by following measure:
Image resolution ratio conversion and image quality lifting device comprise input module, frequency-conversion processing module, digital storage, a row image quality hoisting module, output interface, its annexation: digital video signal inserts input module, input module inserts the frequency-conversion processing module, the frequency-conversion processing module inserts digital storage, a row image quality hoisting module respectively, and a row image quality hoisting module inserts encoder apparatus through the output interface output signal.
Image resolution ratio conversion and image quality lifting device only limit to the signal processing in non-compressed word image territory, and the code device of image Compression is carried out in the data image signal input after the frequency-conversion processing resume module.
For high image quality, high-resolution picture signal, can be without image resolution ratio conversion and image quality lifting device and direct bypass is connected to the output interface of next stage.The anolog TV signals that storage medium is play are through the standard digital vision signal incoming image conversion of resolution and the image quality lifting device of the video decoder generation of analog-to-digital conversion, decoding.
Standard digital vision signal incoming image conversion of resolution and the image quality lifting device exported behind the encoded device decompress(ion) of exporting after the demodulation of digital satellite receiving system of transport stream (TS).
The utility model has following advantage compared to existing technology:
1. the film source of SD reaches the picture quality of high definition broadcasting substantially.
2. China's digital television broadcasting can be carried out digital television broadcasting according to apply in a flexible way appropriate resolution and refresh rate of actual conditions at that time.
3. when employing is broadcasted line by line, adopt high-quality deinterlacing technique, can promote image quality greatly.
4. the film source of simulation film, simulated television also realizes the digital television broadcasting with high-definition format, improves the picture quality of broadcasting simultaneously greatly.
5. can carry out the conversion of image refresh rate (frame frequency, field frequency) simultaneously, to reach the effect of anti-flicker.
6. picture contrast, colour vividness and image resolution ratio have been improved.
Description of drawings
Fig. 1 is the utility model circuitry structured flowchart.
Fig. 2 is the block diagram that the utility model video code flow produces.
Fig. 3 is a digital processing block diagram of the present utility model.
Fig. 4 is the circuit block diagram of image resolution ratio conversion of the present utility model and image quality lifting device.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
See also Fig. 1, analog video source playing device 1 inserts analog video decoder device 2, analog video decoder device 2, digital video source playing device 3, digital satellite receive decoding device 4, Video service apparatus 5 each connect respectively image resolution ratios conversion and image quality lifting devices 6, be used for the encoder apparatus 7 back tandems that the digital signal of video/audio is carried out compressed encoding are produced after the compound and scrambling to the multichannel bitstream the multiplexing/scrambling apparatus 8 of transport stream (TS), and transport stream (TS) is sent to the subsequent communication channel machine and launches.
The digital television broadcasting resolution and the sequential of SD are:
Phase Alternation Line system: 720 * 576 (interlacing) 50Hz
TSC-system: 720 * 480 (interlacing) 60Hz
The highest resolution of digital TV in high resolution is:
1920 * 1080 (interlacing) 50Hz
1920 * 1080 (interlacing) 60Hz
Computer resolution: SXGA, WXGA, XGA, SVGA (line by line)
By image resolution ratio conversion and image quality lifting device 6, resolution or computer resolution that the digital television broadcasting resolution and the sequential of SD upgrades to digital TV in high resolution are broadcasted.When employing is broadcasted line by line, adopt high-quality deinterlacing technique, can promote image quality greatly.
See also Fig. 2, the video code flow of the utility model embodiment is mainly from four aspects:
The first, be anolog TV signals CVBS, Y/C or the YcbCr of VCR, VCD, DVD output, these analog signals are through video decoder devices 9, carry out analog-to-digital conversion, behind the video decode, produce the standard digital vision signal, video decoder devices 9 typical cases adopt VPC3230.
The second, be after deriving from the direct mpeg decode of VCD, DVD, the standard digital vision signal of output.
The 3rd, be to derive from digital satellite broadcasting, output transport stream (TS) after the signal demodulation that receives from digital satellite receiving system 41, transport stream (TS) is compound through going, after 42 decodings of MPEG-2 decoding device, the outputting standard digital video signal.
The 4th, be Video service apparatus 5, the outputting standard digital video signal.The standard digital vision signal is delivered to image resolution ratio conversion and image quality lifting device 6.
See also Fig. 4, Fig. 3, image resolution ratio conversion and image quality lifting device 6 comprise input module 61, frequency-conversion processing module 62, digital storage 63, a row image quality hoisting module 64, output interface 65, its annexation: digital video signal inserts input module 61, input module 61 inserts frequency-conversion processing module 62, frequency-conversion processing module 62 inserts digital storage 63, a row image quality hoisting module 64 respectively, and a row image quality hoisting module 64 inserts encoder apparatus 7 through output interface 65 output signals.Image resolution ratio conversion and image quality lifting device 6 only limit to the signal processing in non-compressed word image territory, and the encoder apparatus 7 of image Compression is carried out in the data image signal input after frequency-conversion processing module 62 is handled.
Image resolution ratio conversion of this device and the realization principle that image quality promotes are as follows: input module 61 receives ITU656, CCIR601 or 24-Bit RGB digital video signal synchronously, enters noise reduction process, mainly handles the bigger VIDEO signal of noise.Convergent-divergent and to go interlacing be frequency-conversion processing, i.e. the conversion of resolution and sequential, its cooperate have a dynamic compensation remove the interlacing treatment circuit, finish the conversion of different resolution and sequential.This conversion regime need be joined digital storage (SDRAM) 63.Convergent-divergent and the automatic detection processing of going an interlacing processing cooperation row image quality hoisting module 64 realizations simultaneously, raising picture contrast, colour vividness and image resolution ratio to film, video mode.
For high image quality, high-resolution picture signal, can be without image resolution ratio conversion and image quality lifting device 6 and direct bypass 66 is connected to the output interface 65 of next stage.
See also Fig. 3, the anolog TV signals that storage medium is play are through the standard digital vision signal incoming image conversion of resolution and the image quality lifting device 6 of video decoder 9 generations of analog-to-digital conversion, decoding.
Standard digital vision signal incoming image conversion of resolution and the image quality lifting device 6 exported behind encoded apparatus 7 decompress(ion)s of exporting after the demodulation of digital satellite receiving system of transport stream (TS).
Claims (6)
1. the program source with low resolution realizes the digital TV in high resolution broadcaster, it is characterized in that: the analog video source playing device inserts the analog video decoder device, the analog video decoder device, the digital video source playing device, digital satellite receives decoding device, Video service apparatus each connect respectively image resolution ratio conversion and image quality lifting device, be used for the digital signal of video/audio is carried out tandem behind the encoder apparatus of compressed encoding produces transport stream (TS) after the compound and scrambling to the multichannel bitstream multiplexing/scrambling apparatus, transport stream (TS) is sent to the subsequent communication channel machine and launches.
2. the program source with low resolution according to claim 1 realizes the digital TV in high resolution broadcaster, it is characterized in that: image resolution ratio conversion and image quality lifting device comprise input module, frequency-conversion processing module, digital storage, a row image quality hoisting module, output interface, its annexation: digital video signal inserts input module, input module inserts the frequency-conversion processing module, the frequency-conversion processing module inserts digital storage, a row image quality hoisting module respectively, and a row image quality hoisting module inserts encoder apparatus through the output interface output signal.
3. the program source with low resolution according to claim 2 realizes the digital TV in high resolution broadcaster, it is characterized in that: image resolution ratio conversion and image quality lifting device only limit to the signal processing in non-compressed word image territory, and the code device of image Compression is carried out in the data image signal input after the frequency-conversion processing resume module.
4. the program source with low resolution according to claim 1 realizes the digital TV in high resolution broadcaster, it is characterized in that: for high image quality, high-resolution picture signal, can be without image resolution ratio conversion and image quality lifting device and direct bypass is connected to the output interface of next stage.
5. the program source with low resolution according to claim 1 realizes the digital TV in high resolution broadcaster, it is characterized in that: the anolog TV signals that storage medium is play are through the standard digital vision signal incoming image conversion of resolution and the image quality lifting device of the video decoder generation of analog-to-digital conversion, decoding.
6. the program source with low resolution according to claim 1 realizes the digital TV in high resolution broadcaster, it is characterized in that: standard digital vision signal incoming image conversion of resolution and the image quality lifting device exported behind the encoded device decompress(ion) of exporting after the demodulation of digital satellite receiving system of transport stream (TS).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420044291 CN2686242Y (en) | 2004-04-02 | 2004-04-02 | Apparatus for realizing high-definition digital TV broadcasting with low-resolution programme source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200420044291 CN2686242Y (en) | 2004-04-02 | 2004-04-02 | Apparatus for realizing high-definition digital TV broadcasting with low-resolution programme source |
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| CN2686242Y true CN2686242Y (en) | 2005-03-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101379815B (en) * | 2006-02-20 | 2010-05-26 | 松下电器产业株式会社 | Transmitting apparatus and transmitting/receiving apparatus |
| CN101646034B (en) * | 2008-08-04 | 2011-12-14 | 株式会社东芝 | Image processing apparatus and image processing method |
| CN102695092A (en) * | 2012-05-25 | 2012-09-26 | 四川长虹电器股份有限公司 | Method for promoting IPTV (Internet Protocol Television) television image quality |
| CN103546664A (en) * | 2012-07-09 | 2014-01-29 | 三星电子株式会社 | Method and device for converting image resolution, and electronic device having the device |
-
2004
- 2004-04-02 CN CN 200420044291 patent/CN2686242Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101379815B (en) * | 2006-02-20 | 2010-05-26 | 松下电器产业株式会社 | Transmitting apparatus and transmitting/receiving apparatus |
| CN101646034B (en) * | 2008-08-04 | 2011-12-14 | 株式会社东芝 | Image processing apparatus and image processing method |
| CN102695092A (en) * | 2012-05-25 | 2012-09-26 | 四川长虹电器股份有限公司 | Method for promoting IPTV (Internet Protocol Television) television image quality |
| CN102695092B (en) * | 2012-05-25 | 2015-08-19 | 四川长虹电器股份有限公司 | A kind of method promoting IPTV picture quality of television |
| CN103546664A (en) * | 2012-07-09 | 2014-01-29 | 三星电子株式会社 | Method and device for converting image resolution, and electronic device having the device |
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| CF01 | Termination of patent right due to non-payment of annual fee |