An Orthogonal Frequency Division Multiplexing (OFDM) signal having a symbol defining a transmission unit is produced by dividing data streams into a plurality of carriers within a predetermined bandwidth and prepared with orthogonal modulation. A transform unit having at least two systems transforms...http://www.google.de/patents/US7424073?utm_source=gb-gplus-sharePatent US7424073 - Orthogonal frequency division multiplexing (OFDM) receiver, OFDM receiving circuit and OFDM diversity reception method
