Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 22, 2010
Patent Application Number
11076051
Date Filed
March 10, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
An orthogonal frequency division multiplexing (OFDM) signal transmission apparatus which transmits OFDM signals by using a plurality of transmission antennas includes a subcarrier setting device which sets signals for subcarriers so as to use some of the subcarriers of the OFDM signals as pilot subcarriers to transmit pilot signals and use the remaining subcarriers as data subcarriers to transmit data signals, the subcarrier setting device changing polarities of signals for the pilot subcarriers for each transmission antenna.
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