Duty cycle correction circuits having short locking times...

Details Duty cycle correction circuits having short locking times... Duty cycle correction circuits having short locking times...

2011-08-02

2011-08-02

Cox, Cassandra (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Rectangular or pulse waveform width control

C327S172000

Reexamination Certificate

active

07990195

ABSTRACT:
A duty cycle correction circuit includes a duty cycle correction portion that is configured to output a correction signal that is obtained by correcting a duty cycle of an input signal and to output a delayed signal that is obtained by delaying the correction signal, a complementary portion that is configured to output a complementary signal that is the complement of the delayed signal, and a phase interpolator that is configured to phase interpolate the complementary signal and the correction signal.

REFERENCES:
patent: 5614855 (1997-03-01), Lee et al.
patent: 6934215 (2005-08-01), Chung et al.
patent: 7148731 (2006-12-01), Minzoni
patent: 7298193 (2007-11-01), Agarwal et al.
patent: 1020050103698 (2005-11-01), None
patent: 1020060013205 (2006-02-01), None

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