Patent
1991-08-05
1993-02-02
Gellner, Michael L.
354131, G03B 1738
Patent
active
051841630
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.
REFERENCES:
patent: 4041512 (1977-08-01), Iwata et al.
patent: 4937604 (1990-06-01), Yoshida et al.
patent: 5066948 (1991-11-01), Kaneko
Gellner Michael L.
Gray David M.
W. Haking Enterprises Limited
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