Electricity: power supply or regulation systems – Miscellaneous
Reexamination Certificate
2009-04-27
2010-12-28
Vu, Bao Q (Department: 2838)
Electricity: power supply or regulation systems
Miscellaneous
Reexamination Certificate
active
07859245
ABSTRACT:
An apparatus outputs a vital output for a processor including an output state. The apparatus includes a first input receiving the output state, two independent circuits each of which includes a second input electrically interconnected with the first input, a third input, a fourth input and an output including the output state. Each of the independent circuits repetitively monitors the output and the third and fourth inputs of a corresponding one of the independent circuits to confirm agreement therebetween. Each of two switches is controlled by the output of the corresponding one of the independent circuits. The switches cooperate to form the vital output. Each of two feedback circuits is between the output and the third input of the corresponding one of the independent circuits, and also between the output of the corresponding one of the independent circuits and the fourth input of the other one of the independent circuits.
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Sarnowski Mark F.
Wahila Kevin N.
Ansaldo STS USA, Inc.
Eckert Seamans Cherin & Mellott , LLC
Houser, Esquire Kirk D.
Vu Bao Q
Zhang Jue
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