Battery voltage checking apparatus

Details Battery voltage checking apparatus Battery voltage checking apparatus

1983-07-01

1985-10-15

Rowland, James L.

Communications: electrical

Condition responsive indicating system

Specific condition

354468, G08B 2100, G03B 726

Patent

active

045477701

ABSTRACT:
In the disclosed battery voltage checking apparatus a first detector detects a first battery voltage level and a second detector detects a second battery voltage level. The first detector produces a signal to instruct the operator to replace the battery when the voltage level of the battery is below the first battery voltage level. Another signal is produced to inhibit camera operation when the battery voltage is below the second battery voltage level. The apparatus includes a circuit arranged to cause the first and second detectors to simultaneously detect the battery voltage level and another circuit arranged to process the signal produced from the first detector before processing the signal from the second detector.

REFERENCES:
patent: 4269494 (1981-05-01), Shiozawa et al.

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