Portable type radio equipment

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

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Details

C455S073000, C455S107000, C455S121000, C330S129000

Reexamination Certificate

active

06934557

ABSTRACT:
In a radio equipment of portable type, the impedance of an antenna is optimized by adjusting a matching circuit which has the adjustment function and is connected to an antenna, based on a reflection phase sent back from the antenna, outputted from a reflection phase detector, and a current supplied to a transmitter-receiver which generates a transmitting signal.

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patent: 6710651 (2004-03-01), Forrester
patent: 0 404 150 (1990-12-01), None
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patent: 1 093 222 (2001-04-01), None
patent: 10-341117 (1998-12-01), None
patent: 2001-16044 (2001-01-01), None
patent: 2001-016044 (2001-01-01), None

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