Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention
Reexamination Certificate
2011-08-23
2011-08-23
Nguyen, Tuan H (Department: 2618)
Telecommunications
Transmitter and receiver at same station
With transmitter-receiver switching or interaction prevention
C455S013300, C455S082000, C455S083000, C343S702000, C343S876000
Reexamination Certificate
active
08005438
ABSTRACT:
A wireless signal transceiver device for receiving wireless signals of multiple frequency bands has an antenna, a radio frequency signal processing unit, an antenna switch module, a primary antenna matching circuit, and an auxiliary antenna matching module. The radio frequency signal processing unit outputs a control signal according to the frequency band of the wireless signal processed. The antenna switch module has a first signal terminal, and a plurality of second signal terminals coupled to the radio frequency signal processing unit, and switches a signal connection between the first signal terminal and one second signal terminal of the plurality of second signal terminals according to the control signal. The primary antenna matching circuit roughly matches the antenna, and the auxiliary antenna matching module matches the antenna with the primary antenna matching circuit based on the frequency band of the wireless signal processed by the radio frequency signal processing unit.
REFERENCES:
patent: 7596357 (2009-09-01), Nakamata et al.
patent: 2005/0197095 (2005-09-01), Nakamata
patent: 2007/0004345 (2007-01-01), Ono et al.
Hsu Winston
Margo Scott
Nguyen Tuan H
Wistron NeWeb Corporation
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