Semiconductor integrated circuit device with filter circuit

Details Semiconductor integrated circuit device with filter circuit Semiconductor integrated circuit device with filter circuit

2007-03-20

2007-03-20

Barnie, Rexford (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Output switching noise reduction

C326S024000, C326S027000, C326S098000

Reexamination Certificate

active

10865923

ABSTRACT:
There is provided a semiconductor integrated circuit device with a filer circuit serving for eliminating a glitch contained in a logic signal supplied to the device, wherein the filter circuit includes: a first delay circuit activated within a certain period after each rising edge timing of input logic signals to delay the rising edge; a second delay circuit activated within a certain period after each falling edge timing of the input logic signals to delay the falling edge; and an output driver controlled by outputs of the first and second delay circuits to output delayed logic signals to an output node in response to the input logic signals.

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patent: 6590421 (2003-07-01), Chung et al.
patent: 6750677 (2004-06-01), Sumita
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patent: 6860578 (2005-03-01), Yamada et al.
patent: 6882171 (2005-04-01), Ong
patent: 08-070242 (1996-03-01), None

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