Title :
An adaptive luma-chroma separator circuit for PAL and NTSC TV signals
Author :
Perlman, Stuart S. ; Schweer, Rainer
Author_Institution :
David Sarnoff Res. Center, Princeton, NJ, USA
fDate :
8/1/1990 12:00:00 AM
Abstract :
A dual system adaptive luma-chroma separator circuit for PAL and NTSC TV signals is described. The circuit is designed to be suitable for VLSI chip layout. Single-line vertical combs are used to obtain a pair of independent chroma signals which are summed in a soft switch arrangement to obtain improved luma-chroma separation. The adaptive circuit is effective in eliminating color errors and cross-color interference typically observed in notch filtered and regular line comb separator circuits. Computer simulations of the circuits provide subjective verification of the effectiveness of the design
Keywords :
VLSI; digital signal processing chips; video signals; NTSC TV signals; PAL TV signals; VLSI chip layout; adaptive luma-chroma separator circuit; chroma signals; colour errors elimination; computer simulations; cross-colour interference suppression; soft switch; vertical combs; Adaptive filters; Adaptive systems; Circuits; Computer errors; Computer simulation; Interference elimination; Particle separators; Switches; TV; Very large scale integration;
Journal_Title :
Consumer Electronics, IEEE Transactions on
