Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiromasa Fujii0
Hirohito Suda0
Date of Patent
January 20, 2009
0Patent Application Number
109849760
Date Filed
November 10, 2004
0Patent Primary Examiner
Patent abstract
An OFDM transmitter transmits an OFDM signal by a frame having a plurality of transmission symbol periods constituted of an effective symbol period for transmitting an information bit and a guard interval. The OFDM transmitter includes a guard interval length decider configured to decide a guard interval length in accordance with a feedback signal from an OFDM receiver; and a guard interval length changer configured to change a guard interval length in each transmission symbol period, in accordance with a decided guard interval length without changing a frame length.
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