Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kei Tohyama0
Date of Patent
July 5, 2011
0Patent Application Number
120206800
Date Filed
January 28, 2008
0Patent Primary Examiner
Patent abstract
When discharge power calculated based on a current value detected by a current detector is smaller than expected maximum power, which is the maximum power expected in an actual operation, a discharge efficiency at the expected maximum power is set as a discharge efficiency used for remaining capacity calculation. This ensures that a remaining capacity based on power required for a photographing operation can be detected.
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