Pulse extending circuit

Details Pulse extending circuit Pulse extending circuit

1996-11-04

2000-01-18

Le, Dinh T.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Rectangular or pulse waveform width control

327552, 327 34, 327166, 327174, H03K 500, H03K 3017

Patent

active

060160705

ABSTRACT:
The present invention provides a timing circuit for outputting a signal having an amplified pulse width when a signal having a normal pulse width is inputted thereto, characterized in that when glitch noise whose pulse width is small, is inputted to the timing circuit, a signal having a waveform corresponding to the pulse width thereof is outputted from the timing circuit. The timing circuit comprises a first delay circuit whose input is connected to an input terminal, a first NAND circuit having a first input terminal connected to the first delay circuit and a second input terminal connected to the input terminal, a second delay circuit whose input is connected to the output of the NAND circuit, an inverter whose input is connected to the input terminal, and a second NAND circuit having a first input terminal connected to the output of the second delay circuit and a second input terminal connected to the output of the inverter.

REFERENCES:
patent: 5672990 (1997-09-01), Chaw
patent: 5682113 (1997-10-01), Park et al.
"CMOS Delay Circuit", IBM Technical Disclosure Bulletin, vol. 27, No. 12, May 1985, pp. 7134-7135.

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