Methods and systems for fully differential frequency doubling

Details Methods and systems for fully differential frequency doubling Methods and systems for fully differential frequency doubling

2006-03-28

2006-03-28

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C327S116000

Reexamination Certificate

active

07019565

ABSTRACT:
Methods and systems for fully differential frequency doubling include receiving a differential input signal having a first frequency, generating a non-inverted or positive output signal having twice the frequency of the input signal, and generating an inverted or negative version of the positive output signal. The positive and negative output signals form a fully differential output. The duty ratio of the output signals substantially matches a duty ratio of the input signals. Fully differential frequency doubling can be implemented with NMOS and/or PMOS devices. The invention further provides optional circuitry for increasing an output signal level.

REFERENCES:
patent: 4813048 (1989-03-01), Yamane et al.
patent: 5945878 (1999-08-01), Westwick et al.
patent: 5990741 (1999-11-01), Yamamoto et al.
patent: 6597592 (2003-07-01), Carsten
patent: 6664824 (2003-12-01), Laws
patent: 6696888 (2004-02-01), Gilbert
patent: 6882191 (2005-04-01), Kwok

Affiliated with

Also associated with

Rating

Methods and systems for fully differential frequency doubling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and systems for fully differential frequency doubling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and systems for fully differential frequency doubling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3572342