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US 5,517,277 AGranted
Battery pack
AssigneeNikon Corporation
InventorsTetsuro Goto, Hiroshi Hasegawa
Life of this patent
Estimating the term…
Abstract
A battery pack capable of being installed in an electric equipment comprises a first battery, an integrating circuit for integrating at least the amount of discharge from the first battery, and a second battery for supplying power to the integrating circuit, which is arranged separatly from the first battery.
Claims17
A battery pack capable of being installed in an electric equipment, including the following:
- a first battery;
- an integrating circuit for integrating at least the amount of discharge from said first battery;
- and
- a second battery for supplying power to said integrating circuit, said second battery being provided separately from said first battery.
1 more element
A battery pack capable of being installed in an electric equipment, including the following:
- a first battery;
- an integrating circuit for integrating at least the amount of discharge from said first battery;
- a voltage detection circuit for generating a first signal by detecting the voltage of said first battery;
- a switching circuit for releasing the connection between said first battery and said integrating circuit when said first signal of said voltage detection circuit becomes lower than a predetermined voltage.
1 more element
Dependencies are inferred from the claim text.