Switch state detecting apparatus for a camera

Details Switch state detecting apparatus for a camera Switch state detecting apparatus for a camera

1985-02-13

1986-08-05

Perkey, William B.

354202, G03B 700, G03B 1700

Patent

active

046039570

ABSTRACT:
A detecting apparatus for detecting the state of switch means operatively associated with the release operation or the like is disclosed. The cycle of sampling pulse for detecting the state of the switch to be applied to the switch means when the use of the photographing apparatus is selected by operation means is made shorter than that when the non-use of the photographing apparatus is selected. The power consumption due to the application of the sampling pulses in case the detection of the switch detection is not necessary is prevented, while the change of the state of the switch means can be detected efficiently when the detection of the switch state is necessary.

REFERENCES:
patent: 4492450 (1985-01-01), Watanabe et al.

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