Electrical computers and digital processing systems: support – Computer power control – Having power source monitoring
Reexamination Certificate
2005-11-16
2009-11-24
Du, Thuan N (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
Having power source monitoring
C713S310000, C320S134000, C320S136000, C324S432000, C324S433000
Reexamination Certificate
active
07624292
ABSTRACT:
A battery power detection device is disclosed that has a reduced circuit area and is able to achieve sufficiently high detection accuracy. The battery power detection device includes a temperature section detection unit that detects a temperature of the battery and detects one of plural predetermined temperature sections including the detected temperature, a current section detection unit that detects a current output from the battery and detects one of plural predetermined current sections including the detected current; and a power section detection unit that has plural voltage-power data tables including data indicating the relation between the voltage output from the battery and the remaining power sections of the battery. The power section detection unit selects one of the voltage-power data tables according to the detected temperature section and the detected current section, and detects one of the remaining power sections associated with a given voltage of the battery.
REFERENCES:
patent: 6437540 (2002-08-01), Sonobe
patent: 6515452 (2003-02-01), Choo
patent: 7109875 (2006-09-01), Ota et al.
patent: 2005/0046389 (2005-03-01), Kim
patent: 11-162524 (1999-06-01), None
patent: 3087276 (2000-07-01), None
Dickstein & Shapiro LLP
Du Thuan N
Ricoh & Company, Ltd.
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