Frequency synthesizer, frequency prescaler thereof, and...

Details Frequency synthesizer, frequency prescaler thereof, and... Frequency synthesizer, frequency prescaler thereof, and...

2011-08-23

2011-08-23

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C327S113000, C327S115000, C377S047000, C377S048000

Reexamination Certificate

active

08004320

ABSTRACT:
A frequency synthesizer is provided, including a voltage-controlled oscillator (VCO), a frequency prescaler, a divide-by-2.5 circuit, and a selector. The VCO determine the frequency of a first signal according to an input voltage. The frequency prescaler determines the frequency of a second signal to be the frequency of the first signal divided by 3, 3.5, or 4 according to a first selection signal, and the frequency prescaler also determines the frequency of a third signal to be the frequency of the first signal divided by 6, 7, or 8 according to the first selection signal. The divide-by-2.5 circuit generates a fourth signal, wherein the frequency of the fourth signal is the frequency of the first signal divided by 2.5. The selector selects one of the second signal, the third signal, and the fourth signal as a fifth signal according to a second selection signal.

REFERENCES:
patent: 6570946 (2003-05-01), Homol et al.
patent: 7075350 (2006-07-01), Austin et al.
patent: 7113009 (2006-09-01), Sun et al.
patent: 7492852 (2009-02-01), Liu

Affiliated with

Also associated with

Rating

Frequency synthesizer, frequency prescaler thereof, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency synthesizer, frequency prescaler thereof, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency synthesizer, frequency prescaler thereof, and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2619252