Patent ID: 7773882
Filing Date: 2010-08-10
Classification: H04J

Abstract:
1. A method of providing communication between a plurality of transmitting stations and a plurality of receiving stations, said method comprising: receiving a plurality of signals from a plurality of transmitting stations, a signal from a first one of the plurality of transmitting stations, being coded using a first code that is associated with the first one of the plurality of transmitting stations; converting the plurality of coded signals to obtain a further plurality of coded signals one of which is decodable using a further code that is associated with at least one of the plurality of receiving stations; transmitting the plurality of further coded signals for delivery to the at least second one of the plurality of receiving stations, and receiving at the one of the plurality of stations the further coded signal, wherein the first code is one of a plurality of codes where each first code is uniquely associated with one of the plurality of transmitting stations, the further code is another of the plurality of codes, the plurality of codes is a closed set under element-by-element multiplication whereby element-by-element multiplication of the first code by a specific one of the plurality of codes results in the further code, and said converting step includes converting the coded signal using the specific one of the plurality of codes to obtain the further coded signal.