Patent ID: 7079586

Claim:
A transmitter for transmitting a stream of known symbols and unknown symbols through a transmission channel to a first receiver that receives the transmitted stream of known symbols and unknown symbols distorted by intersymbol interference (ISI) and reduces an ISI signal, the transmitter comprising: a known symbol distribution controller capable of inserting a plurality of known symbol clusters into an outgoing stream of unknown symbols in an optimum distribution in order to improve the performance of the first receiver, said known symbol distribution controller being capable of determining a channel order, L, associated with the receiver; wherein said transmitted stream of known symbols and unknown symbols is received by a plurality of receivers; the known symbol distribution controller is capable of determining a plurality of channel orders, L 1 through L n , each channel order being associated with a corresponding one of said plurality of receivers; and said known symbol distribution controller determines the optimum distribution according to a value of the channel order.