Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shinichi Hasebe0
Hiroo Nakano0
Date of Patent
October 24, 2006
0Patent Application Number
103275130
Date Filed
December 20, 2002
0Patent Primary Examiner
Patent abstract
When a reset signal /RESET is “L”, a flip-flop circuit holds “1”; on the other hand, a flip-flop circuit holds “0”. When the reset signal /RESET becomes “H”, the flip-flop circuits captures data in synchronous with a clock signal. When a power supply voltage returns to the initial value after an instantaneous blackout occurs, the data of the flip-flop circuits have the same value. An output signal of an exclusive-OR gate circuit becomes “L”, the output is held in a flip-flop circuit. As a result, an instantaneous blackout detection signal becomes “H”.
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