Image signal compressor

Details Image signal compressor Image signal compressor

1985-08-07

1989-04-11

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 27, H04N 514

Patent

active

048211001

ABSTRACT:
An image signal compressor having a controller for adjusting the compression start potential in such a way as to decrease it with increasing highest peak voltage level of three chrominance signals to be compressed, in addition to three first resistors, three diodes and three second resistors. Therefore, even if one of three chrominance signals rises excessively high, it is possible to always compress the chrominance signals below a predetermined level without limitation by limiter circuits, thus preventing the chrominance signal having an excessively high peak voltage level from being regenerated in white on a cathode-ray tube. The signal compressor is applicable to a monochrome image pickup tube or solid-state image pickup elements as well as a color image pickup tube or color solid-state image pickup elements.

REFERENCES:
patent: 3542944 (1970-11-01), Peffer et al.
patent: 3684825 (1972-08-01), Dischert et al.

Affiliated with

Also associated with

Rating

Image signal compressor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image signal compressor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image signal compressor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-670334