Digital communication system

Details Digital communication system Digital communication system

1976-10-12

1978-03-14

Stewart, David L.

179 15BC, H04J 318

Patent

active

040792021

ABSTRACT:
A signal system for use in a communication system for reducing intersymbol interference to increase the data rate per cycle of bandwidth, comprising a plurality of digital channel signal states each representing a channel symbol having a plurality of bits, the channel signal states being related in accordance with the simultaneous solution of a number of equations which are the first derivatives of mean squared channel error with respect to each signal state, each equation being set equal to zero and the equations being solved simultaneously to provide the related signal states.

REFERENCES:
patent: 3720789 (1973-03-01), Clark
patent: 3821481 (1974-06-01), Melvin
patent: 3969674 (1976-07-01), Tracey
patent: 3983485 (1976-09-01), Stuart

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