Shading correction signal generating device for a television camera apparatus
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United States of America Patent
Stats
-
Mar 15, 1988
Grant Date -
N/A
app pub date -
Mar 25, 1987
filing date -
Mar 25, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Family
International Classification(s)
Cited Art Landscape
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