Antenna control device for a radio communication apparatus having a plurality of antennas
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 24, 1998
Grant Date -
N/A
app pub date -
Apr 26, 1996
filing date -
Jul 23, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a portable radio communication apparatus selectively operable with an internal antenna or an external antenna, a control signal is fed to a control signal input terminal when the external antenna is connected to an external antenna terminal. The control signal causes an antenna switch to connect the external antenna to a radio section in place of the internal antenna. A control switch is connected between the control signal input terminal and the antenna switch and turned on when the internal switch is retracted or turn off when it is extended.
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