Method and apparatus for checking battery in camera

Details Method and apparatus for checking battery in camera Method and apparatus for checking battery in camera

1996-05-01

1998-01-27

Gray, David M.

Photography

Having wireless remote control circuit

396301, G03B 1700, G03B 726

Patent

active

057130507

ABSTRACT:
When a remote control shot mode is set, a voltage of an electric battery mounted in a camera is detected. The detected voltage is compared with a predetermined remote control OK voltage. A quantity of electricity consumed within 5 minutes until function of automatic power-off is operated after the remote control shot mode is set, is added to a quantity of electricity consumed from a shutter release by a remote controller to the setting of a next frame shot. The added value is converted into a voltage of the electric battery to be the remote control OK voltage. The remote control shot mode is allowed only if the detected voltage of the electric battery is more than the remote control OK voltage. As a result, when the setting of the remote controller shot mode is allowed, the photographing can be performed without fail.

REFERENCES:
patent: 4816862 (1989-03-01), Taniguchi et al.
patent: 4912499 (1990-03-01), Desormeaux
patent: 4982220 (1991-01-01), Akasaka
patent: 5041861 (1991-08-01), Taniguchi et al.
patent: 5095308 (1992-03-01), Hewitt
patent: 5446512 (1995-08-01), Mogamiya

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