Oscillators – Ring oscillators
Reexamination Certificate
2011-03-29
2011-03-29
Pascal, Robert (Department: 2817)
Oscillators
Ring oscillators
C331S017000, C331S034000, C327S156000
Reexamination Certificate
active
07915963
ABSTRACT:
A current controlled, phase locked loop device includes a phase detector configured to compare a reference frequency to an output frequency of a current controlled oscillator (ICO), a charge pump coupled to the phase detector and a low pass filter coupled to the charge pump. A voltage to current (V to I) converter is coupled to the low pass filter, providing an output current for integral control of the ICO. A control circuit is coupled to the ICO, and receives increment and decrement outputs of the phase detector, wherein the control circuit is configured to provide proportional control of the ICO through an amount of bias current applied thereto.
REFERENCES:
patent: 5272453 (1993-12-01), Traynor et al.
patent: 5565817 (1996-10-01), Lakshmikumar
patent: 6285214 (2001-09-01), Zipper
patent: 6614316 (2003-09-01), Masenas et al.
patent: 6690240 (2004-02-01), Maxim et al.
patent: 6693495 (2004-02-01), Wang
patent: 7710206 (2010-05-01), Kelkar et al.
patent: 2004/0135640 (2004-07-01), Maneatis
patent: 2005/0040898 (2005-02-01), Garvin
patent: 2006/0022760 (2006-02-01), Wu et al.
Kelkar Ram
Malladi Anjali R.
Cantor & Colburn LLP
International Business Machines - Corporation
Johnson Ryan
LeStrange Michael
Pascal Robert
LandOfFree
Current controlled oscillation device and method having wide... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Current controlled oscillation device and method having wide..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current controlled oscillation device and method having wide... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2724096