Telecommunications – Transmitter and receiver at same station – With frequency stabilization
Reexamination Certificate
2005-12-22
2009-11-03
Trinh, Sonny (Department: 2618)
Telecommunications
Transmitter and receiver at same station
With frequency stabilization
C455S165100, C455S183100
Reexamination Certificate
active
07613430
ABSTRACT:
Using separate synthesizers in a radio frequency (RF) device can facilitate avoiding interference. Specifically, a first synthesizer can be programmed to generate a first output frequency signal having an Frf frequency. A second synthesizer can be programmed to generate a second output frequency signal having an Fif frequency. Notably, a sum of the Frf and Fif frequencies equals an Fchannel frequency of the RF device. Thus, any RF channel can be received (or transmitted) with a plurality of VCO frequencies for each of the two synthesizers. A table of Frf/Fif combinations can be used to determine an Frf/Fif combination that avoids a known interfering source. Alternatively, Frf/Fif combinations can be randomly chosen until an interfering source is avoided.
REFERENCES:
patent: 5963852 (1999-10-01), Schlang et al.
patent: 6351502 (2002-02-01), Zargari
patent: 6567654 (2003-05-01), Coronel Arredondo et al.
patent: 6968173 (2005-11-01), Cowley
patent: 6990154 (2006-01-01), Bellaouar
patent: 7076226 (2006-07-01), Bult et al.
patent: 2005/0089119 (2005-04-01), Miyagi
patent: 2005/0160475 (2005-07-01), Waight et al.
patent: 2005/0260961 (2005-11-01), Cowley et al.
Atheros Communications Inc.
Bever Hoffman & Harms LLP
Harms Jeanette S.
Trinh Sonny
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