Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By pulse width or spacing
Reexamination Certificate
2006-09-14
2010-02-09
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By pulse width or spacing
C327S552000
Reexamination Certificate
active
07659752
ABSTRACT:
Provided is a noise filter circuit capable of outputting only a normal signal pulse in synchronization with a clock signal without passing the noise pulse on to a subsequent stage, even if a noise pulse having a width that is larger than a delay time is inputted. The noise filter circuit according to the present invention has a flip-flop additionally provided to a stage subsequent to a noise removing circuit that uses a delay circuit. The delay time of a clock signal inputted to the flip-flop is made different from the delay time of the noise removing circuit to thereby obtain a normal signal pulse to be outputted in synchronization with the clock signal.
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Brinks Hofer Gilson & Lione
Donovan Lincoln
O'Toole Colleen
Seiko Instruments Inc.
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