Photography – Exposure control circuit – Diaphragm function only
Reexamination Certificate
2007-12-19
2010-06-22
Perkey, W. B. (Department: 2862)
Photography
Exposure control circuit
Diaphragm function only
C348S363000
Reexamination Certificate
active
07742695
ABSTRACT:
A camera system for driving a diaphragm by a stepping motor including first and second coils and capable of 2-phase driving, includes a display unit configured to display an image signal, a live view control unit configured to display image signals sequentially read from an image sensor in the display unit, and a control unit configured to set only one of the first and second coils to be in an energized state when the live view control unit displays the image signals in the display unit.
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Canon Kabushiki Kaisha
Canon U.S.A. Inc. I.P. Division
Perkey W. B.
Reisner Noam
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