Duty correction circuit, duty correction system, and duty...

Details Duty correction circuit, duty correction system, and duty... Duty correction circuit, duty correction system, and duty...

2011-07-12

2011-07-12

Luu, An T (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Rectangular or pulse waveform width control

C327S172000

Reexamination Certificate

active

07977990

ABSTRACT:
A duty correction circuit is provided which includes a level shifter receives complementary differential input signals having a duty ratio and controls levels of the differential input signals; a TrTf control circuit receives output signals of the level shifter and controls edge angles of the output signals; a waveform shaping circuit receives output signals of the TrTf control circuit and shapes waveforms of the output signals; a first common mode comparator extracts common modes of the output signals of the TrTf control circuit and compares the common modes; and a second common mode comparator extracts common modes of output signals of the waveform shaping circuit and compares the common modes. The level shifter controls the levels based on outputs of the first common mode comparator and the TrTf control circuit controls the edge angles based on outputs of the second common mode comparator.

REFERENCES:
patent: 5945857 (1999-08-01), Havens
patent: 6967514 (2005-11-01), Kizer et al.
patent: 7015739 (2006-03-01), Lee et al.
patent: 7612593 (2009-11-01), Kim et al.
patent: 2003/0111705 (2003-06-01), Seo
patent: 2003/0204767 (2003-10-01), Ishida et al.
patent: 2006/0114042 (2006-06-01), Lee et al.
patent: 2007/0285147 (2007-12-01), Sakai
patent: 2-131615 (1990-05-01), None
patent: 2003-198343 (2003-07-01), None
patent: 2003-318705 (2003-11-01), None
patent: 2006-157909 (2006-06-01), None
patent: 2007-329924 (2007-12-01), None
William J. Dally et al; “Digital Systems Engineering”; ISBN 0-521-59292-5; 1998; pp. 606-607.

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