Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shigekazu Kimura0
Date of Patent
January 8, 2008
0Patent Application Number
111696930
Date Filed
June 30, 2005
0Patent Primary Examiner
Patent abstract
Antenna switching equipment switches antennas for a reader/writer. A power generation unit generates electric power from an RF signal outputted from the reader/writer. A switching signal generation unit, operating on electric power generated by the power generation unit, generates a switching signal for specifying an antenna port to be used from among a plurality of antenna ports. A high frequency switch unit, operating on electric power generated by the power generation unit, switches a connection between the reader/writer and one of a plurality of antenna ports based on a switching signal generated by the switching signal generation unit.
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