Apparatus for multiple band communication

Details Apparatus for multiple band communication Apparatus for multiple band communication

2005-06-28

2005-06-28

Nguyen, Lee (Department: 2682)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S552100, C455S078000, C455S073000

Reexamination Certificate

active

06912406

ABSTRACT:
A mobile communication device that includes an antenna configured to send and/or receive a first signal in a first frequency band and a second signal in a second frequency band, first receiver circuitry configured to receive signals in the first frequency band, a switch having a first position, and a first diplexing network coupled to the antenna, the first diplexing network also coupled to the switch, and first diplexing network also coupled to the first receiver circuitry. The first diplexing network can be configured to pass signals in the first frequency band to the first receiver circuitry and to block signals in the second frequency band from the first receiver circuitry. The first diplexing network can also be configured to pass signals in the second frequency band to the switch. The mobile communication device can also include a second diplexing network coupled to the switch at the first position, the second diplexing network corresponding to the second frequency band.

REFERENCES:
patent: 5414214 (1995-05-01), Cho et al.
patent: 5815804 (1998-09-01), Newell et al.
patent: 6069925 (2000-05-01), Koh
patent: 6201952 (2001-03-01), Shimizu et al.
patent: 6487410 (2002-11-01), Kontio et al.
patent: 2003/0008660 (2003-01-01), Forrester

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