A Dual Carrier Modulator (DCM) for a Multiband OFDM (Orthogonal Frequency Division Multiplexing) Transceiver of a Ultra Wide Band (UWB) wireless personal access network transmitting OFDM modulated symbols is provided, wherein each OFDM symbol is modulated by a predetermined number of encoded bits. The...http://www.google.de/patents/US7512185?utm_source=gb-gplus-sharePatent US7512185 - Dual carrier modulator for a multiband OFDM UWB transceiver