Television – Image signal processing circuitry specific to television – Special effects
Patent
1994-05-31
1995-05-30
Groody, James J.
Television
Image signal processing circuitry specific to television
Special effects
348561, 348704, H04N 5262, H04N 5272, H04N 974
Patent
active
054206430
ABSTRACT:
A circuit for compressing and expanding video color component data comprises a FIFO line memory and a delay circuit. A timing circuit generates control signals for writing data into the line memory and for reading data from the line memory to compress and expand the data. The delay circuit matches the data compressed or expanded in the FIFO line memory to luminance data which is similarly compressed or expanded. A switching network selectively establishes a first signal path in which the line memory precedes the delay circuit for implementing the data expansion and a second signal path in which the delay circuit precedes the line memory for implementing the data compression. The switching network is controlled according to selected display formats requiring compression or expansion, for example by a microprocessor.
REFERENCES:
patent: 4163249 (1979-07-01), Michael et al.
patent: 4282546 (1981-08-01), Reitmeier
patent: 4712130 (1987-12-01), Casey
patent: 4768093 (1988-08-01), Prodan
patent: 4839728 (1989-06-01), Casey
patent: 4853779 (1989-08-01), Hammer et al.
patent: 4996592 (1991-02-01), Yoshida
patent: 5016106 (1991-05-01), Yong-Je et al.
patent: 5249049 (1993-09-01), Kranawetter et al.
Ersoz Nathaniel H.
Horlander Karl F.
Romesburg Eric D.
Saeger Timothy W.
Burgess Glenton B.
Fried Harvey D.
Groody James J.
Laks Joseph J.
Thomson Consumer Electronics Inc.
LandOfFree
Chrominance processing system for compressing and expanding vide does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chrominance processing system for compressing and expanding vide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chrominance processing system for compressing and expanding vide will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-365925