Fast lock scheme for phase locked loops and delay locked loops

Details Fast lock scheme for phase locked loops and delay locked loops Fast lock scheme for phase locked loops and delay locked loops

2006-03-31

2008-12-16

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S142000, C327S147000

Reexamination Certificate

active

07466174

ABSTRACT:
A fast lock scheme for phase locked loops and delay locked loops, where apparatus, systems, and methods include a startup circuit that is enabled at the beginning of a startup mode and is disabled upon a phase transition detection in the reference and feedback signals to the phase locked loop or delay locked loop. Further apparatus, systems, and methods enable a first charge pump when a phase transition is detected, and enable a second charge pump when the phase difference between the reference and feedback signals fall within a predetermined range.

REFERENCES:
patent: 4112490 (1978-09-01), Pohlman et al.
patent: 4546472 (1985-10-01), Volk et al.
patent: 4819081 (1989-04-01), Volk et al.
patent: 4829258 (1989-05-01), Volk et al.
patent: 5304953 (1994-04-01), Heim et al.
patent: 5304955 (1994-04-01), Atriss et al.
patent: 5332930 (1994-07-01), Volk
patent: 5369311 (1994-11-01), Wang et al.
patent: 5384502 (1995-01-01), Volk
patent: 5388265 (1995-02-01), Volk
patent: 5537069 (1996-07-01), Volk
patent: 5543734 (1996-08-01), Volk et al.
patent: 5572465 (1996-11-01), Bashir
patent: 5594691 (1997-01-01), Bashir
patent: 5615404 (1997-03-01), Knoll et al.
patent: 5621901 (1997-04-01), Morriss et al.
patent: 5670869 (1997-09-01), Weisenbach
patent: 5874863 (1999-02-01), Wojewoda et al.
patent: 5996027 (1999-11-01), Volk et al.
patent: 5999020 (1999-12-01), Volk et al.
patent: 6112306 (2000-08-01), Volk et al.
patent: 6128359 (2000-10-01), Volk
patent: 6128749 (2000-10-01), McDonnell et al.
patent: 6166563 (2000-12-01), Volk et al.
patent: 6191662 (2001-02-01), Volk
patent: 6329882 (2001-12-01), Fayneh et al.
patent: 6347850 (2002-02-01), Volk
patent: 6356105 (2002-03-01), Volk
patent: 6369734 (2002-04-01), Volk
patent: 6380758 (2002-04-01), Hsu et al.
patent: 6392573 (2002-05-01), Volk
patent: 6407600 (2002-06-01), Lu et al.
patent: 6408398 (2002-06-01), Freker et al.
patent: 6420899 (2002-07-01), Crittenden et al.
patent: 6445316 (2002-09-01), Hsu et al.
patent: 6457095 (2002-09-01), Volk
patent: 6495997 (2002-12-01), Hall et al.
patent: 6496132 (2002-12-01), Volk
patent: 6507295 (2003-01-01), Volk
patent: 6516396 (2003-02-01), Volk et al.
patent: 6525612 (2003-02-01), Aoki
patent: 6542013 (2003-04-01), Volk et al.
patent: 6556022 (2003-04-01), To et al.
patent: 6560666 (2003-05-01), Harriman et al.
patent: 6570371 (2003-05-01), Volk
patent: 6604179 (2003-08-01), Volk et al.
patent: 6606705 (2003-08-01), Volk
patent: 6611918 (2003-08-01), Uzelac et al.
patent: 6617888 (2003-09-01), Volk
patent: 6624662 (2003-09-01), Volk
patent: 6662305 (2003-12-01), Salmon et al.
patent: 6664906 (2003-12-01), Volk
patent: 6667643 (2003-12-01), Ko
patent: 6693450 (2004-02-01), Volk et al.
patent: 6774735 (2004-08-01), Senthilkumar et al.
patent: 6777975 (2004-08-01), Dabral et al.
patent: 6791428 (2004-09-01), Senthilkumar et al.
patent: 6794919 (2004-09-01), Volk et al.
patent: 6915399 (2005-07-01), McDonnell et al.
patent: 6919769 (2005-07-01), Lim et al.
patent: 6922047 (2005-07-01), Knoll et al.
patent: 6924692 (2005-08-01), Fulton et al.
patent: 6928494 (2005-08-01), Volk et al.
patent: 6940163 (2005-09-01), Piorun et al.
patent: 6957354 (2005-10-01), Uzelac et al.
patent: 6960950 (2005-11-01), Shah et al.
patent: 6963991 (2005-11-01), Hill et al.
patent: 6971040 (2005-11-01), Volk
patent: 7078977 (2006-07-01), Maneatis
patent: 7126798 (2006-10-01), Piorun et al.
patent: 7157894 (2007-01-01), Fulton et al.
patent: 7181631 (2007-02-01), Volk
patent: 7203853 (2007-04-01), Martwick et al.
patent: 7245682 (2007-07-01), Hsu et al.
patent: 7262647 (2007-08-01), Chou
patent: 2004/0268158 (2004-12-01), Fulton et al.
patent: 2005/0003764 (2005-01-01), Piorun et al.
patent: 2005/0231272 (2005-10-01), Fulton et al.
patent: 2006/0005059 (2006-01-01), Uzelac et al.
patent: 2006/0133469 (2006-06-01), Froelich et al.
patent: 2006/0179372 (2006-08-01), Volk

Affiliated with

Also associated with

Rating

Fast lock scheme for phase locked loops and delay locked loops does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fast lock scheme for phase locked loops and delay locked loops, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fast lock scheme for phase locked loops and delay locked loops will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4052371