Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 19, 2010
Patent Application Number
11623339
Date Filed
January 16, 2007
Patent Primary Examiner
Patent abstract
A transmitter and receiver circuit includes antennas for receiving high-frequency signals; a local oscillator for generating local oscillation signals; mixers connected to respective antennas for converting the frequency of the high-frequency signals from corresponding antennas in response to the high-frequency signals input from the local oscillator; and a switch for inputting the local oscillation signals generated by the local oscillator into a selected one of the mixers so that receiving channels are switched by the switch.
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