Remote trigger method and apparatus for a camera shutter
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United States of America Patent
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-
Feb 2, 1993
Grant Date -
N/A
app pub date -
Aug 5, 1991
filing date -
Aug 5, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A low-cost remote control triggering mechanism for the shutter of a camera utilizes a remote control transmitter that utilizes a pulsed light emitting diode transmitter to generate triggering pulses having a predetermined pulse width and pulse spacing. A receiver at the camera receives the pulses and utilizes filtering, threshold detection and pulse width and interval criteria to distinguish triggering pulses from ambient light sources.
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