DocumentCode :
1424996
Title :
A video backend for multimedia TV-sets
Author :
Sohne, Thomas ; Flamm, Peter ; Alrutz, Herbert ; Kohne, Heinrich ; Keller, Stefan
Author_Institution :
Micronas Intermetall GmbH, Freiburg, Germany
Volume :
44
Issue :
3
fYear :
1998
fDate :
8/1/1998 12:00:00 AM
Firstpage :
704
Lastpage :
711
Abstract :
Advanced multimedia TV-sets can handle double scan TV sources (100 Hz, progressive scan, VGA, SVGA) with resolutions up to 800×600 at 60 Hz. In addition wide screens (16:9 aspect ratio) are attractive for displaying video and PC graphics side by side. This could become a key feature for WWW-ready TV-sets. So modern TV systems face two problems: displaying different scan rates and the compatibility of aspect ratios between TV/PC sources and picture tubes. This paper describes a highly integrated “display and deflection processor” (DDP). The mixed signal IC contains the entire digital video component processing like chroma transient improvement (CTI), adaptive luma peaking and a nonlinear “Panorama” aspect ratio conversion. All deflection related signals can be adapted to different scan rates. The analog section contains all analog interface components and an ADC, to compensate long term changes of the picture tube parameters and extreme high tension effects
Keywords :
Internet; digital signal processing chips; multimedia systems; television receivers; video signal processing; 480000 pixel; 60 Hz; 600 pixel; 800 pixel; ADC; CTI; PC graphics; WWW-ready TV-sets; adaptive luma peaking; advanced multimedia TV-sets; analog interface components; analog section; aspect ratio; chroma transient improvement; deflection related signal; digital video component processing; double scan TV sources; extreme high tension effects; highly integrated display and deflection processor; mixed signal IC; multimedia TV-sets; nonlinear Panorama aspect ratio conversion; picture tube; resolutions; scan rates; video; video backend; wide screen TV; Bandwidth; Clocks; Displays; Frequency; Limiting; Matrix converters; Phase locked loops; Signal processing; Switches; TV;
fLanguage :
English
Journal_Title :
Consumer Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0098-3063
Type :
jour
DOI :
10.1109/30.713185
Filename :
713185
Link To Document :
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