Optical apparatus responsive to an external information output device
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United States of America Patent
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Jan 10, 1995
Issued Date -
N/A
app pub date -
Nov 12, 1993
filing date -
Dec 28, 1989
priority date (Note) -
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Abstract
A camera controls its operation according to the data contents of a signal transmitted from an external information output device. The camera includes a detector for detecting the signal transmitted from the information output device, a switch for switching the detector to a detectable state, and a limitation unit for making the detector non-operable irrespective of any state of the switch. Thus, a meaningless detection operation of the detector is limited.
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