Using an IF synthesizer to provide raster component of...

Details Using an IF synthesizer to provide raster component of... Using an IF synthesizer to provide raster component of...

2006-01-24

2006-01-24

Tse, Young T. (Department: 2637)

Pulse or digital communications

Transmitters

C375S307000, C455S076000

Reexamination Certificate

active

06990154

ABSTRACT:
In the synthesis of frequency channel spacing in an RF transmission signal, a raster component of the desired frequency channel spacing is provided by an integer IF frequency synthesizer (44). Because the frequencies associated with the IF synthesizer are lower then those associated with an RF frequency synthesizer (48), the IF synthesizer can incorporate the desired raster using a lower feedback divisor (N) than can the RF synthesizer.

REFERENCES:
patent: 5722040 (1998-02-01), Bjerede et al.
patent: 6069535 (2000-05-01), Khlat
patent: 6091303 (2000-07-01), Dent
patent: 6463112 (2002-10-01), Hafez et al.
patent: 6556545 (2003-04-01), Boesch
patent: 0 678 974 (1995-10-01), None
patent: 0 792 052 (1997-08-01), None

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