Phased locked loop circuit including voltage controlled ring...

Details Phased locked loop circuit including voltage controlled ring... Phased locked loop circuit including voltage controlled ring...

2005-12-20

2011-10-25

Johnson, Ryan (Department: 2817)

Oscillators

Ring oscillators

C331S03600C, C331S1170FE, C331S179000

Reexamination Certificate

active

08044727

ABSTRACT:
There is provided a voltage controlled ring oscillator having a plurality of ring-connected amplifiers (401), and a plurality of variable capacitance elements (502a, 502b) being respectively connected to the plurality of amplifiers and having capacitances varied by a voltage control. A plurality of load resistors (402) and a plurality of tail current sources (403) are respectively connected to the plurality of amplifiers.

REFERENCES:
patent: 5420547 (1995-05-01), Kikuchi
patent: 5767748 (1998-06-01), Nakao
patent: 6252467 (2001-06-01), Yoshimura
patent: 6954110 (2005-10-01), Li
patent: 7057466 (2006-06-01), Chien
patent: 7061334 (2006-06-01), Baig et al.
patent: 2004/0075505 (2004-04-01), Yang et al.
patent: 57-057642 (1982-04-01), None
patent: 64-022104 (1989-01-01), None
patent: 2-53304 (1990-02-01), None
patent: 04-011409 (1992-01-01), None
patent: 7-169583 (1995-07-01), None
patent: 7-169584 (1995-07-01), None
patent: 9-214299 (1997-08-01), None
patent: 9-326676 (1997-12-01), None
patent: 11-215024 (1999-08-01), None
patent: 2000-244285 (2000-09-01), None
patent: 2001-201392 (2001-07-01), None
patent: 3528203 (2004-05-01), None
Japanese Office Action, Partial English-language translation, mailed Dec. 7, 2010 for corresponding Japanese Application No. 2007-550956.
PCT Notification dated Jul. 3, 2008 and an English-language translation of a Written Opinion dated Dec. 20, 2005, previously submitted without English translation on Jun. 19, 2008.

Affiliated with

Also associated with

Rating

Phased locked loop circuit including voltage controlled ring... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phased locked loop circuit including voltage controlled ring..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phased locked loop circuit including voltage controlled ring... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4301904