Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – Having selection between plural continuous waveforms
Reexamination Certificate
2007-07-17
2007-07-17
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
Having selection between plural continuous waveforms
C327S407000
Reexamination Certificate
active
11227026
ABSTRACT:
An apparatus and method for verifying glitch-free operation of a multiplexer are provided. The apparatus includes a circuit having a plurality of flip-flop elements that receive as inputs the plurality of clock signals that are inputs to the multiplexer, and a corresponding synchronized output signal of a decoder generated based on control inputs to the decoder. The synchronized output signals from the decoder are used as trigger signals to the plurality of flip-flops. The flip-flops sample the clock signals based upon the trigger signals and provide outputs to a logic gate. The logic gate operates on the outputs from the flip-flops to generate an output signal indicative of whether glitch-free operation is verified or is not verified.
REFERENCES:
patent: 4229699 (1980-10-01), Frissell
patent: 4853653 (1989-08-01), Maher
patent: 4970405 (1990-11-01), Hagiwara
patent: 5099141 (1992-03-01), Utsunomiya
patent: 5122677 (1992-06-01), Sato
patent: 5155380 (1992-10-01), Hwang et al.
patent: 5231636 (1993-07-01), Rasmussen
patent: 5315181 (1994-05-01), Schowe
patent: 5357146 (1994-10-01), Heimann
patent: 5740064 (1998-04-01), Witte et al.
patent: 6175603 (2001-01-01), Chapman et al.
patent: 6265930 (2001-07-01), Walker et al.
patent: 6501304 (2002-12-01), Boerstler et al.
patent: 6559679 (2003-05-01), Kim
patent: 6600355 (2003-07-01), Nguyen
patent: 6671341 (2003-12-01), Kinget et al.
patent: 6809556 (2004-10-01), Bronfer et al.
Boerstler David W.
Hailu Eskinder
Qi Jieming
Gerhardt Diana R.
International Business Machines - Corporation
Le Dinh T.
Walder, Jr. Stephen J.
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