Camera and error preventing circuit therefor

Details Camera and error preventing circuit therefor Camera and error preventing circuit therefor

1979-09-05

1981-05-26

Hix, L. T.

Optics: motion pictures

Camera and/or projector drive mechanisms

With starting and/or stopping means

352170, 354268, G03B 100, G03B 1738

Patent

active

042694892

ABSTRACT:
In the camera disclosed, an error preventing circuit responds to a drop in the electrical power source or battery and deactivates the camera control elements in the same sequence as that used when the camera release operation ends. According to an embodiment, the error preventing circuit also prevents the start sequence from beginning in response to a low source voltage. This assures satisfactory control over initiation and termination of each camera operating cycle and assures proper stopping when the battery voltage falls below the satisfactory operating level.

REFERENCES:
patent: 3568175 (1971-02-01), Schwehr
patent: 3979657 (1976-09-01), Yorksie
patent: 4084891 (1978-04-01), Kiefer
patent: 4114173 (1978-12-01), Tezuka et al.

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