Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2006-12-29
2010-11-09
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S147000, C327S156000, C327S161000, C327S175000
Reexamination Certificate
active
07830185
ABSTRACT:
A duty cycle correction (DCC) circuit and a delayed locked loop (DLL) circuit using the same are disclosed. The DCC circuit is operated by an enable signal which is enabled when the DLL is locked. The duty cycle correction (DCC) circuit includes a clock input unit and a duty cycle mixing unit. The clock input unit receives the enable signal and first and second clock input signals having opposite phases, generates an inverting signal of the first clock input signal, and when the enable signal is enabled, generates first and second internal clock signals, based on the first and second clock input signals and the inverting signal. The duty cycle mixing unit mixes a phase of the first internal clock signal with a phase of the second internal clock signal.
REFERENCES:
patent: 6642760 (2003-11-01), Alon et al.
patent: 6963235 (2005-11-01), Lee
patent: 7095261 (2006-08-01), Drexler et al.
patent: 7227809 (2007-06-01), Kwak
patent: 7282958 (2007-10-01), Rhee
patent: 2004/0155686 (2004-08-01), Kim et al.
patent: 2005/0110540 (2005-05-01), Kwak
patent: 2006/0192602 (2006-08-01), Lee
patent: 2007/0046347 (2007-03-01), Lee
patent: 2007/0176659 (2007-08-01), Gomm
patent: 10-2004-0021478 (2004-03-01), None
patent: 10-2005-0055925 (2005-06-01), None
patent: 10-2005-0079801 (2005-08-01), None
patent: 10-2005-0082637 (2005-08-01), None
patent: 10-2005-0087286 (2005-08-01), None
patent: 10-2006-0037564 (2006-05-01), None
Kim Su Hyun
Yoo Min Young
Cooper & Dunham LLP
Donovan Lincoln
Hynix / Semiconductor Inc.
Poos John W
White John P.
LandOfFree
Duty cycle correction (DCC) circuit and delayed locked loop... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Duty cycle correction (DCC) circuit and delayed locked loop..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Duty cycle correction (DCC) circuit and delayed locked loop... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4239533