DLL circuit and method of controlling the same

Details DLL circuit and method of controlling the same DLL circuit and method of controlling the same

2008-07-09

2010-06-15

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S149000

Reexamination Certificate

active

07737746

ABSTRACT:
A delay locked loop (DLL) circuit includes an initial operation setting unit configured to generate an initial operation signal in response to a reference clock signal and an operation start signal; a shift register configured to generate a delay control code in response to the initial operation signal, a phase comparison signal, and an initial setting code; a delay line configured to delay the reference clock signal or a feedback clock signal in response to the initial operation signal and the delay control code, thereby generating a plurality of unit delay clock signals; and an initial delay monitoring unit configured to generate the initial setting code in response to the reference clock signal and the plurality of unit delay clock signals.

REFERENCES:
patent: 6069506 (2000-05-01), Miller et al.
patent: 6316976 (2001-11-01), Miller et al.
patent: 6433597 (2002-08-01), Jung
patent: 6483359 (2002-11-01), Lee
patent: 6628154 (2003-09-01), Fiscus
patent: 6720807 (2004-04-01), Kubo et al.
patent: 6812760 (2004-11-01), Kim et al.
patent: 6822494 (2004-11-01), Kim
patent: 6853226 (2005-02-01), Kwak et al.
patent: 6943602 (2005-09-01), Lee
patent: 7209422 (2007-04-01), Sato et al.
patent: 7327175 (2008-02-01), Lee
patent: 7372311 (2008-05-01), Kang
patent: 7532050 (2009-05-01), Haerle et al.
patent: 2002/0000856 (2002-01-01), Jung
patent: 2002/0130691 (2002-09-01), Silvestri
patent: 2005/0001663 (2005-01-01), Lee
patent: 2006/0279342 (2006-12-01), Blodgett
patent: 2007/0152723 (2007-07-01), Ahn et al.
patent: 2008/0191773 (2008-08-01), Oh
patent: 2005-020686 (2005-01-01), None
patent: 2005184196 (2005-07-01), None
patent: 2006060332 (2006-03-01), None
patent: 1020070007317 (2007-01-01), None
patent: 1020080075414 (2008-08-01), None

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