<p>A multi-tone system includes a data transmission circuit with an interface for receiving a data stream for transmission, a data steam splitter that splits the data stream to produce multiple substreams and a plurality of parallel data preparation circuits. Each data preparation circuit prepares a respective substream for transmission and generates a respective sub-channel signal. At least a first data preparation circuit of the plurality of parallel data preparation circuits includes a first analog filter for filtering a first substream. The first analog filter operates at a sample rate greater than the respective symbol rate of the first substream. The first analog filter provides pre-emphasis of the respective sub-channel signal and attenuation of signals outside of a respective band of frequencies corresponding to the respective sub-channel signal. The data transmission circuit also includes a combiner for combining respective sub-channel signals to generate a data transmission signal.</p>
申请公布号
WO2006071347(A1)
申请公布日期
2006.07.06
申请号
WO2005US38706
申请日期
2005.10.26
申请人
RAMBUS INC.;STOJANOVIC, VLADIMIR M.;AMIRKHANY, AMIR;ZERBE, JARED, L.
发明人
STOJANOVIC, VLADIMIR M.;AMIRKHANY, AMIR;ZERBE, JARED, L.