Camera with battery check circuit

Details Camera with battery check circuit Camera with battery check circuit

1988-02-04

1989-08-08

Adams, Russell E.

354484, G03B 1718

Patent

active

048557811

ABSTRACT:
A camera includes an LCD, a microcomputer for detecting the presence/absence of a main power supply battery so as to detect an exchange of the main power supply battery, and a battery check circuit for detecting a voltage state of the main power supply battery. When the microcomputer detects the exchange of the main power supply battery, the battery check circuit is started to cause the LCD to display the voltage state of the main power supply battery.

REFERENCES:
patent: 4269494 (1981-05-01), Shiozawa
patent: 4525055 (1985-06-01), Yokoo
patent: 4662736 (1987-05-01), Taniguchi et al.
patent: 4716433 (1987-12-01), Alyfuku
patent: 4751546 (1988-06-01), Yamamoto et al.

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