Frequency synthesizer

Details Frequency synthesizer Frequency synthesizer

2008-04-08

2008-04-08

Donovan, Lincoln (Department: 2837)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synthesizer

Reexamination Certificate

active

11086237

ABSTRACT:
The invention relates to a frequency synthesizer. An object of the invention is to provide a frequency synthesizer whose high stable performance is realized at an inexpensive cost. The frequency synthesizer includes a frequency synthesizing section generating an output signal by performing indirect frequency synthesis at a period which is equal to a product of a period of the reference signal and a first integer, and a clock generating section generating the clock signal by performing frequency synthesis for the output signal and for maintaining a frequency of the clock signal at a value which is equal to a difference between or a sum of a first frequency which is equal to a product of the frequency of the reference signal and a second integer and a second frequency indicating a number of times the phase difference is compressed.

REFERENCES:
patent: 6356112 (2002-03-01), Tran et al.
patent: 2002/0114386 (2002-08-01), Eklof
patent: 2004/0207436 (2004-10-01), Suda et al.
patent: 6-209216 (1994-07-01), None
patent: 9-270706 (1997-10-01), None
patent: 10-041816 (1998-02-01), None

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