Logic circuit whose power switch is quickly turned on and off

Details Logic circuit whose power switch is quickly turned on and off Logic circuit whose power switch is quickly turned on and off

2006-01-24

2006-01-24

Wamsley, Patrick (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

C326S081000

Reexamination Certificate

active

06989686

ABSTRACT:
The present invention is to provide a logic circuit which assures short-circuit current reduction by using a gate which uniquely fixes the level of each node and also reduces leakage current so that the power is turned on and off quickly. Logic gates of the subject logic circuit are divided into first-type logic gate and second-type logic gates. The first-type logic gate outputs high potential under the specific status and the second-type logic gate outputs low potential under the specific status. Under the state that the high potential is supplied to the first-type logic gates and the low potential is supplied to the second-type logic gates, the power switch MOS is turned on. Further, in case of the adder, the specific status is equal to selecting a constant as an input of the adder. For general logic circuit, specific flip-flops are introduced to implement this specific status.

REFERENCES:
patent: 4203151 (1980-05-01), Baker
patent: 4236089 (1980-11-01), Baker
patent: 4270163 (1981-05-01), Baker
patent: 5079449 (1992-01-01), Obata
patent: 5132555 (1992-07-01), Takahashi
patent: 5134322 (1992-07-01), Bourgeois et al.
patent: 5319260 (1994-06-01), Wanlass
patent: 5486774 (1996-01-01), Douseki et al.
patent: 5614847 (1997-03-01), Kawahara et al.
patent: 5894394 (1999-04-01), Baba et al.
patent: 5933384 (1999-08-01), Terada et al.
patent: 6011681 (2000-01-01), Ker et al.
patent: 6242948 (2001-06-01), Makino
patent: 6504400 (2003-01-01), Tanaka et al.
patent: 6531886 (2003-03-01), Eichfeld et al.
patent: 6552579 (2003-04-01), Knoedgen
patent: 6822476 (2004-11-01), Arakawa
patent: 6831483 (2004-12-01), Shimazaki et al.
patent: 6924661 (2005-08-01), Buffet et al.
patent: 5-291929 (1993-11-01), None
patent: 6-29834 (1994-02-01), None
patent: 7-86916 (1995-03-01), None

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