Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2007-10-09
2007-10-09
Patel, Rajnikant B. (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S282000
Reexamination Certificate
active
10902847
ABSTRACT:
A power supply apparatus supplies power to one of an interior circuit and external instruments. The power supply apparatus includes a voltage regulator that regulates and outputs a constant voltage through an output driver by comparing the power with a regulator reference voltage, and a power supply voltage detecting device that detects a power supply voltage and determines if the power supply voltage is less than a power supply reference voltage based upon the output of the voltage regulator.
REFERENCES:
patent: 4017789 (1977-04-01), Morris
patent: 4929882 (1990-05-01), Szepesi
patent: 6420861 (2002-07-01), Ochi et al.
patent: 6424121 (2002-07-01), Khouri et al.
patent: 2001-69677 (2001-03-01), None
Dickstein & Shapiro LLP
Patel Rajnikant B.
Ricoh & Company, Ltd.
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