Inertial delay circuit for eliminating glitches on a signal line

Details Inertial delay circuit for eliminating glitches on a signal line Inertial delay circuit for eliminating glitches on a signal line

1996-08-13

1998-06-02

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By pulse width or spacing

327 36, H03K 908

Patent

active

057606129

ABSTRACT:
An inertial delay circuit includes a negative glitch removing circuit connected in series with a positive glitch removing circuit. The negative and positive glitch removing circuits are respectively configured to pass only negative and positive pulses of an input signal having a pulse width greater than a pre-determined width. The negative glitch removing circuit passes its input through a delay line and performs a logical OR on its input and the delayed signal. The positive glitch removing circuit passes its input through a delay line and performs a logical AND on its input and the delayed signal. The glitch removing circuits may further include respective pulse width restoring circuits to restore the pulses passing therethrough to their original widths.

REFERENCES:
patent: 3970944 (1976-07-01), Huellwegen
patent: 4233525 (1980-11-01), Takahashi et al.
patent: 5163168 (1992-11-01), Hirano et al.
patent: 5184032 (1993-02-01), Leach
patent: 5185537 (1993-02-01), Creedon et al.
patent: 5440178 (1995-08-01), McClure
patent: 5465062 (1995-11-01), Fong

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