Self-adjusting video camera
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 25, 1985
Grant Date -
N/A
app pub date -
Nov 3, 1982
filing date -
Nov 3, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is an automatic self-adjusting CCD activated video camera circuit for adjusting the various CCD channel offset and gain values to the desired levels by utilizing the channels' digitized internal black and white references. Two identical feedback loops are used for offset and gain adjustment, respectively. In the gain/offset adjust loop, the white/black reference is compared to a desired gain/offset set by jumpers or switches on the video camera board. A difference in these values causes a corresponding 10 bit counter to increase or decrease its value. The digital counter value is converted to an analog signal and is used to optimally modify the channel gain/offset.
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Family
International Classification(s)
Cited Art Landscape
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