Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2007-10-16
2007-10-16
Cox, Cassandra (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S149000, C327S161000
Reexamination Certificate
active
11323912
ABSTRACT:
A DLL for reducing jitter during a high frequency operation by separately controlling a coarse delay and a fine delay. The DLL includes a multiplexing unit for selectively outputting one of the rising clock and the falling clock; a first delay line for generating a first internal clock and a second internal clock; a second delay line for generating a first clock and a second clock; a delay line control unit for controlling the second delay line; a phase control unit for generating a first DLL clock and a second DLL clock by mixing the first clock and the second clock; and a phase comparing unit for comparing the first DLL clock and the second DLL clock with the rising clock to generate a lock signal for controlling an operation timing of the first delay line and the second delay line.
REFERENCES:
patent: 6101197 (2000-08-01), Keeth et al.
patent: 6710636 (2004-03-01), Gibbs et al.
patent: 6724228 (2004-04-01), Kashiwazaki
patent: 6765976 (2004-07-01), Oh
patent: 6801472 (2004-10-01), Lee
patent: 6803826 (2004-10-01), Gomm et al.
patent: 6812799 (2004-11-01), Kirsch
patent: 6917229 (2005-07-01), Cho
patent: 6943602 (2005-09-01), Lee
patent: 6982579 (2006-01-01), Lee
patent: 7161397 (2007-01-01), Lee et al.
patent: 2003/0151433 (2003-08-01), Takai
patent: 2005/0024107 (2005-02-01), Takai et al.
patent: 2003-69424 (2003-01-01), None
patent: 1020030090129 (2003-11-01), None
patent: 10-2004-0046328 (2004-06-01), None
patent: 1020040095981 (2004-11-01), None
Blakely & Sokoloff, Taylor & Zafman
Cox Cassandra
Hynix / Semiconductor Inc.
LandOfFree
Delay 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 Delay locked loop, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Delay locked loop will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3850856