Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By phase
Reexamination Certificate
2006-01-11
2010-10-26
Nguyen, Hai L (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By phase
C327S003000, C327S007000
Reexamination Certificate
active
07821301
ABSTRACT:
A method and circuit for static phase error measurement includes a reference clock delay chain having a selectable number of delay elements. A number of the delay elements are enabled in accordance with a select length signal to delay a reference clock signal. A feedback signal delay chain also has a selectable number of delay elements. A number of the delay elements are enabled in accordance with a select length signal to delay a feedback signal. A latch tests phase alignment between the delayed reference clock signal and the delayed feedback signal and outputs a measurement of static phase error.
REFERENCES:
patent: 5118975 (1992-06-01), Hillis et al.
patent: 5568071 (1996-10-01), Hoshino et al.
patent: 5604775 (1997-02-01), Saitoh et al.
patent: 6072347 (2000-06-01), Sim
patent: 6288574 (2001-09-01), Neary
patent: 6404248 (2002-06-01), Yoneda
patent: 6429693 (2002-08-01), Staszewski et al.
patent: 6483871 (2002-11-01), Dawe
patent: 6646484 (2003-11-01), Ito
patent: 6838912 (2005-01-01), Chou
patent: 7009433 (2006-03-01), Zhang et al.
patent: 7039824 (2006-05-01), Simon et al.
patent: 7129789 (2006-10-01), Hsiao et al.
patent: 7276946 (2007-10-01), Lin
patent: 7471131 (2008-12-01), Liu et al.
Dougherty, Esq. Anne V.
International Business Machines - Corporation
Nguyen Hai L
Tutunjian & Bitetto, P.C.
LandOfFree
Method and apparatus for measuring and compensating for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for measuring and compensating for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring and compensating for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4171855