Photography – With power supply detail – Power distribution management
Patent
1997-07-25
2000-02-29
Gray, David M.
Photography
With power supply detail
Power distribution management
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.
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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
Dalakis Michael
Gray David M.
Nikon Corporation
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