Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1987-03-25
1988-03-15
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
35821327, H04N 514
Patent
active
047316527
ABSTRACT:
A shading correction wave generating unit generates a predetermined shading correction waveform signal including AC signal components on the basis of a scanning drive signal with at least one of horizontal or vertical scanning frequencies for a TV screen. An area-designating signal generating unit generates an area-designating signal to designate a specific area on the TV screen on the basis of said scanning drive signal. A potential clamping unit receives the predetermined shading correction waveform signal including AC signal components and the area-designating signal, and clamps the predetermined shading correction waveform including AC components to a specific potential in the specific area designated by the area-designating signal. An output unit produces a shading correction signal which is the predetermined shading correction waveform signal including AC components as clamped to the specific potential in the specific area by the potential clamping unit.
REFERENCES:
patent: 3919473 (1975-11-01), Cotter
patent: 4618892 (1986-10-01), Kawaguchi
Groody James J.
Kabushiki Kaisha Toshiba
Parker Michael D.
LandOfFree
Shading correction signal generating device for a television cam does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shading correction signal generating device for a television cam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shading correction signal generating device for a television cam will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1929029