Receiver and method for avoiding intersymbol interference in a high speed transmission system

The invention relates to high speed transmission system and receiving and transmitting and receiving system is received signal method, wherein the transmission system the first signal is transmitted to the transmission device. The data marks of the first signal and sending, comprising a avoiding of the continuous transmission of each mark the data marks interference first prefix. To a receiver of the present invention includes a filter, the filter with of the first signal is connected with the bandwidth, further - comprising for buffering the first signal buffer electrode, and said multiple data marks the first prefix of every to generate the second prefix device and use of the second prefix replacing to the first prefix replacing the device; the second prefix are of replacing the first prefix the length longer than. The invention is used in DMTXDSL system.