Pulse or digital communications – Multilevel – Transmission line
Patent
1992-12-23
1995-05-02
Chin, Stephen
Pulse or digital communications
Multilevel
Transmission line
370 18, 341180, H04L 2728, H04J 1100
Patent
active
054126894
ABSTRACT:
A method and system are provided for transmission of m information signal combinations over a known transmission medium at a high rate of speed without crosstalk between data transferred through the transmission medium. The technique employed is to convert each of the m information signal combinations to a unique line signal corresponding to one of n intrinsic orthogonal modes of the defined transmission medium through which the information is to be transmitted (wherein m>n). The encoded line signals, propagated via the orthogonal modes, are received and decoded at a remote location along the transmission medium to restore the original information data. The problem of assigning m unique line signals to each of the m possible information signal combinations is addressed by amplitude modulation of the transmission medium's n intrinsic orthogonal modes.
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Chan Byron K.
Scott Terrence R.
Chin Stephen
Cutter Lawrence D.
International Business Machines - Corporation
May Timothy J.
Radigan Kevin P.
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