Duty cycle corrector

Details Duty cycle corrector Duty cycle corrector

2007-05-22

2007-05-22

Tra, Quan (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Rectangular or pulse waveform width control

C327S291000

Reexamination Certificate

active

11048185

ABSTRACT:
A duty cycle corrector comprising a first circuit and a second circuit. The first circuit is configured to receive a clock signal and an inverted clock signal and to obtain a delay signal that indicates a time difference between transitions of the clock signal and the inverted clock signal. The second circuit is configured to receive the clock signal and the inverted clock signal and the delay signal and to delay the clock signal based on the delay signal to provide an output clock signal having substantially a 50% duty cycle.

REFERENCES:
patent: 5475322 (1995-12-01), MacDonald
patent: 5614855 (1997-03-01), Lee et al.
patent: 5635866 (1997-06-01), Monk et al.
patent: 5945857 (1999-08-01), Havens
patent: 6452432 (2002-09-01), Kim
patent: 6781419 (2004-08-01), Harrison
patent: 2003/0117194 (2003-06-01), Lee
patent: 2004/0075462 (2004-04-01), Kizer et al.
patent: 2004/0189364 (2004-09-01), Lee et al.

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