Camera

Details Camera Camera

1990-06-15

1991-06-25

Adams, Russell E.

G03B 726

Patent

active

050271504

ABSTRACT:
A camera comprising an electronic flash and other load devices powered by a source battery. The load devices are controllable by a microcomputer mounted in a camera body, which microcomputer is also powered by the source battery. The camera includes a power backup such as a capacitor for supplying power to the microcomputer when the source battery has run down. A detecting device detects an output voltage of the source battery, and outputs a detection signal when the output voltage is below a predetermined level. The microcomputer discontinues a camera sequence and operation of the load devices in response to the detection signal. While the camera sequence and operation of the load devices are suspended, photographic information is stored in the microcomputer powered by the backup. After lapse of a predetermined time period, the microcomputer enables the camera sequence and the operation of the load devices provided that the battery voltage is above the predetermined level.

REFERENCES:
patent: 4469990 (1984-09-01), Maruyama et al.
patent: 4547770 (1985-10-01), Suzuki et al.
patent: 4645326 (1987-02-01), Kiuchi et al.
patent: 4728975 (1988-03-01), Ohara et al.
patent: 4816862 (1989-03-01), Taniguchi et al.
patent: 4857946 (1989-08-01), Tominaga et al.

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