Circuit for the glitch-free changeover of digital signals

Details Circuit for the glitch-free changeover of digital signals Circuit for the glitch-free changeover of digital signals

1998-08-06

2000-06-13

Kim, Jung Ho

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327 99, 327298, H03L 700

Patent

active

060753927

ABSTRACT:
A circuit for the glitch-free changeover between digital signals includes a multiplexer having a multiplicity of signal input terminals, signal select terminals and a signal output terminal. Furthermore, the circuit includes a counter logic unit for counting pulses in the output signal of the multiplexer and for outputting a count signal when a specific count value is reached. A delay logic unit delays a multiplexer select signal and outputs a switching signal and a delayed multiplexer select signal. During a set switching signal the counter logic unit is activated and the circuit output is deactivated.

REFERENCES:
patent: 4707842 (1987-11-01), Fischer
patent: 4855616 (1989-08-01), Wang et al.
patent: 5574393 (1996-11-01), Nguyen et al.
patent: 5652536 (1997-07-01), Nookala et al.
"Introduction to VLSI Systems" (Mead), Oct. 1980, pp. 232-262, Addison--Wesley Series in Computer Science.
"The Art of Electronics" (Horowitz), Cambridge University Press, 1989, pp. 515-516.

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