Camera battery check device having multiple battery check levels

Photography – With power supply detail – Power distribution management

Patent

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Details

396277, G03B 1336

Patent

active

060319992

ABSTRACT:
A camera including a battery check device, having a plurality of battery check levels, to inactivate auxiliary devices of the camera according to a detected battery voltage level, and to modify the battery check level depending on the auxiliary devices used for taking photographs. The remaining capacity of the battery is detected and compared with the plurality of battery check levels and the activation of the plurality of devices is prohibited in a specified order, for example, in order of lower priority, or in order of larger power consumption, as the detected value of the remaining battery capacity decreases. The battery check level can be modified based on the auxiliary devices which are inactivated by an operator. A photographic operation can be continued without missing a shutter opportunity as long as a sufficient battery capacity remains to activate the devices necessary for taking photographs.

REFERENCES:
patent: 4421396 (1983-12-01), Matsuzaki
patent: 4537488 (1985-08-01), Terui
patent: 4547770 (1985-10-01), Suzuki et al.
patent: 4992821 (1991-02-01), Kiuchi et al.
patent: 5166721 (1992-11-01), Arasaka
patent: 5589912 (1996-12-01), Saiomi
patent: 5721987 (1998-02-01), Ozawa

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