Chrominance channel bandwidth modification system

Details Chrominance channel bandwidth modification system Chrominance channel bandwidth modification system

1981-09-28

1984-09-18

McElheny, Jr., Donald

Facsimile and static presentation processing

Facsimile

Recording apparatus

358340, 358 16, 455103, H04N 591

Patent

active

044727461

ABSTRACT:
When PAL chroma signals U and V are respectively recorded in channels with bandwidths intended for NTSC chroma signals I and Q, distortion will result to one of the U or V signals due to the narrow bandwidth Q channel. To equalize this distortion between the U and V signals, they line to line alternate between the two channels. To avoid a line crawl, signals above the Q channel cut-off frequency are averaged.

REFERENCES:
patent: 3255303 (1966-06-01), Kihara
patent: 3871019 (1975-03-01), Bingham
patent: 4003077 (1977-01-01), Hickok
patent: 4090214 (1978-05-01), Wright
patent: 4131765 (1978-12-01), Kahn
Warren, "Alternate Line Color Recording System", RCA Technical Notes, TN-999, Pub. Feb. 13, 1975.

Affiliated with

Also associated with

Rating

Chrominance channel bandwidth modification system 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 channel bandwidth modification system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chrominance channel bandwidth modification system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-796505