Circuitry for latching

Details Circuitry for latching Circuitry for latching

2006-08-30

2009-02-24

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Particular stable state circuit

C327S212000, C327S214000, C327S218000, C327S225000

Reexamination Certificate

active

07495493

ABSTRACT:
Circuitry for latching receives an input signal and a control signal and provides an output signal. In one embodiment, the setup time (t(SL) and t(SH)) of the input signal with reference to the control signal is to the first edge of the control signal, the holding time (t(HL) and t(HH)) of the input signal with reference to the control signal is independent of the second edge of the control signal, and the output signal goes to a predetermined state in response to the second edge of the control signal. In one embodiment, the control signal may be a clock. The circuitry for latching may be used with static circuits and/or with dynamic circuits.

REFERENCES:
patent: 4779011 (1988-10-01), Tsunoi et al.
patent: 5144158 (1992-09-01), Kanai et al.
patent: 5598120 (1997-01-01), Yurash
patent: 5818274 (1998-10-01), Lombreschi et al.
patent: 6002285 (1999-12-01), Muhich et al.
patent: 6469953 (2002-10-01), Hong
patent: 7242235 (2007-07-01), Nguyen
patent: 7388416 (2008-06-01), Marutani
patent: 2005/0116756 (2005-06-01), Kim

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