System and method for controlling exposure of a video camera by utilizing luminance values selected from a plurality of luminance values
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United States of America Patent
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Mar 9, 1999
Grant Date -
N/A
app pub date -
Dec 27, 1995
filing date -
Dec 30, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A video camera system and method for automatically controlling the exposure of a desired object image. A plurality of average luminance values are respectively determined by a plurality of light measurement units. A plurality of reference luminance values are obtained from a plurality of reference value circuits. Selected ones of the average luminance values and the reference luminance values are utilized to form control signals. Such control signals control the video camera so as to maintain a proper exposure of the desired object.
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