Aspect ratio conversion of television display

Details Aspect ratio conversion of television display Aspect ratio conversion of television display

1989-12-26

1992-10-27

Chin, Tommy P.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358137, 358140, 358180, H04N 546

Patent

active

051594382

ABSTRACT:
A television receiver for displaying a 4.times.3 aspect ratio color video signal on a 16.times.9 aspect ratio surface where the digitized luma and chroma signals have a 4:2:2 or a 4:1:1 relationship of Y, R-Y and B-Y samples. A signal having an equal number of luma and chroma samples is developed by generating additional chroma samples by averaging chroma sample values over a group of two (or four for a 4:1:1 signal) successive real values. The luma and chroma samples are compressed by twenty-five percent to form a converted color signal for display. In one version this is accomplished by discarding pixels when writing into a line memory. In another version this is accomplished by reading the pixels out of a line memory at 4/3 the write clock frequency.

REFERENCES:
patent: 4651208 (1987-03-01), Rhodes
patent: 4654696 (1987-03-01), Dayton
patent: 4672443 (1987-06-01), Dischert
patent: 4897722 (1990-01-01), Flory
patent: 4984081 (1991-01-01), Miyoshi

Affiliated with

Also associated with

Rating

Aspect ratio conversion of television display does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aspect ratio conversion of television display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aspect ratio conversion of television display will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-909646