Delay locked loop

Details Delay locked loop Delay locked loop

2002-10-08

2008-11-25

Odom, Curtis B (Department: 2611)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C375S371000, C375S373000, C327S149000, C327S150000, C327S153000, C327S156000, C327S158000, C327S159000, C327S161000

Reexamination Certificate

active

07457392

ABSTRACT:
A delay locked loop includes a first delay device for obtaining a fine setting and a downstream-connected second delay device for obtaining a coarse setting of the delay time. The control signals for controlling the respective delay devices are provided by synchronization latches, which receive a clock obtained by the output signal of the first delay device for obtaining the fine setting. The delay locked loop enables a linear operating behavior at a high operating frequency and is particularly suitable when a differential embodiment of the two delay devices is used.

REFERENCES:
patent: 4789996 (1988-12-01), Butcher
patent: 5355097 (1994-10-01), Scott et al.
patent: 5359232 (1994-10-01), Eitrheim et al.
patent: 5465076 (1995-11-01), Yamauchi et al.
patent: 5604775 (1997-02-01), Saitoh et al.
patent: 5875219 (1999-02-01), Kim
patent: 6242954 (2001-06-01), Taniguchi et al.
patent: 6275555 (2001-08-01), Song
patent: 6329854 (2001-12-01), Lee et al.
patent: 6351167 (2002-02-01), Hein et al.
patent: 6456130 (2002-09-01), Schnell
patent: 6489823 (2002-12-01), Iwamoto
patent: 6774693 (2004-08-01), Carr
patent: 6795931 (2004-09-01), LaBerge
patent: 6930524 (2005-08-01), Drexler
patent: 2001/0000426 (2001-04-01), Sung et al.
patent: 2001/0050585 (2001-12-01), Carr
patent: 2003/0012322 (2003-01-01), Partsch et al.
patent: 43 27 116 (1994-03-01), None
patent: 199 12 967 (2000-03-01), None
patent: 199 30 167 (2001-01-01), None
patent: 101 30 122 (2003-01-01), None
Shigehiro Kuge et al.: “A 0.18 μm 256Mb DDR-SDRAM with Low-Cost Post-Mold-Tuning Method for DLL Replica”,2000 IEEE International Solid-State Circuits Conference, 4 pgs., Order No. 07803-5853-8/00.

Affiliated with

Also associated with

Rating

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.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4025531