Focus detecting device
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United States of America Patent
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-
Sep 16, 1997
Issued Date -
N/A
app pub date -
Sep 16, 1996
filing date -
Jul 22, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Improved accuracy is contrived in a focus detecting device for finding the amount of correlation between signals corresponding to images received on first and second sensor arrays. A picture element signal of each sensor is duplicated and taken out as a signal of a double information amount, thereby enabling correlation calculation to be effected accurately.
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