Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1991-12-16
1992-11-10
Kostak, Victor R.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358166, H04N 557
Patent
active
051629020
ABSTRACT:
A signal processor responsive to a video input signal provides a first video output signal linearly related to the input signal and a second video output signal non-linearly related to the video input signal. A first combining circuit combines the first and second video output signals in predetermined proportions to provide a third video output signal having both linear and non-linear components. A second combining means combines the second and third video output signals in proportions determined by an average picture level (APL) representative control signal to provide a processed video output signal having enhanced contrast for all values of the average picture level of displayed images.
REFERENCES:
patent: 4599643 (1986-07-01), Harlan
patent: 4829381 (1989-05-01), Song et al.
patent: 4975773 (1990-12-01), Rabii
patent: 5003394 (1991-03-01), Lagoni
patent: 5047861 (1991-09-01), Houchin et al.
Bell Isaac M.
Lagoni William A.
Coalter Richard G.
Emanuel Peter M.
Kostak Victor R.
Thomson Consumer Electronics Inc.
Tripoli Joseph S.
LandOfFree
Non-linear luminance signal processor responsive to average pict does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-linear luminance signal processor responsive to average pict, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-linear luminance signal processor responsive to average pict will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2298164