System and method for selecting a communication band

Details System and method for selecting a communication band System and method for selecting a communication band

2007-08-28

2007-08-28

Pham, Brenda (Department: 2616)

Multiplex communications

Duplex

C370S297000

Reexamination Certificate

active

10417784

ABSTRACT:
A system and method for making a band selection in a wireless communications device is provided. The available bands include a first-communication band, a second communication band, and an auxiliary band. A wideband diplexer provides a wideband path, which includes the first-communication band and the auxiliary band, and a second-communication band path. A combination duplexer couples to the wideband path, and has an auxiliary signal port, a first-band receive port, and a first-band transmit port. A standard duplexer couples to the second communication path to provide a second-band receive port and a second-band transmit port. In one example, the first communication band is the PCS band, the second communication band is the cellular band, and the auxiliary signal is a GPS satellite signal.

REFERENCES:
patent: 6667723 (2003-12-01), Forrester
patent: 2003/0008667 (2003-01-01), Forrester
patent: 2003/0181192 (2003-09-01), Park et al.
patent: WO 01/59938 (2001-08-01), None

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