Patent ID: 7684525

Claim:
An apparatus, comprising: a plurality of receiving elements each of which is configured to receive a composite signal including at least some of a plurality of signals, wherein the apparatus receives said plurality of signals at the same time; and a processor configured to receive said plurality of receiving elements composite signal and providing an estimate of at least two of said plurality of signals, said processor is configured to provide an estimate of a first one of said signals and to provide an estimate of a second one of said signals, wherein said processor is configured, for each already determined estimate of at least one of the estimate of the first one of said signals and the estimate of the second one of said signals, to extend each of the at least one already determined estimate with a plurality of potential values, wherein said estimate of said second one of said signals takes into account the estimate of the first signal and the estimate of the first signal is modified in dependence on the estimate of the second signal.