Mobile terminal

Details Mobile terminal Mobile terminal

2004-07-19

2009-06-30

Urban, Edward (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S556100, C455S067110, C455S343100, C455S552100, C455S553100

Reexamination Certificate

active

07555324

ABSTRACT:
In a cell phone, no consideration is given to a switch unit when a reception circuit for space diversity is added, and consequently an antenna can be optimally connected to the reception circuit for space diversity. The cell phone comprises a first antenna for radio communication, a transmission-reception circuit to exchange signals with a base station through the first antenna, and a GPS reception circuit to receive signals from the GPS satellite through the first antenna. The reception circuit receives a signal from the base station, a second antenna different from the first antenna is provided, and the switch unit changes over connections between the first antenna and the second antenna, and the transmission-reception circuit, the GPS reception circuit and the reception circuit according to operation modes.

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“GaAs MMIC Application Circuits” http://www.nir.co.lp/108/sgl.02.htm. pp. 1-6.

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