Waveform width adjusting circuit with selective control delay

Details Waveform width adjusting circuit with selective control delay Waveform width adjusting circuit with selective control delay

2007-04-26

2009-08-11

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Rectangular or pulse waveform width control

C327S173000, C327S174000

Reexamination Certificate

active

07573309

ABSTRACT:
Disclosed is waveform width adjusting circuit that comprises: a delay circuit having a prescribed delay time is provided in a signal propagation path and a delay adjusting circuit which applies an adjustment in such a manner that when a waveform width extending from either a positive-going transition or a negative-going transition of the signal waveform at an input terminal to the next negative-going transition or positive-going transition is greater than the delay time of the delay circuit, a signal having a reduced waveform width is output, and such that when the waveform width of the signal at the input terminal is less than or equal to the delay time, the waveform width is not reduced and the signal that is output has the waveform width of the original signal. Thus, the waveform width of a signal for which the waveform width is less than a limit is not reduced.

REFERENCES:
patent: 5672990 (1997-09-01), Chaw
patent: 5723994 (1998-03-01), Ting et al.
patent: 5969555 (1999-10-01), Suda
patent: 6147532 (2000-11-01), Ueda
patent: 7030671 (2006-04-01), Park

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