Method for transmitting digital signals

A method for generating a control signal (A) having at least three signal levels (L, R, E, W) for driving a laser diode for an optical storage media comprising for each signal level (R, E, W) differing from the base level (L) of the control signal (A), forming a digital transmission signal (RD, ER, WR) corresponding to this signal level (R, E, W), combining the transmission signals (RD, ER, WR) in a transmitter unit (1) to form a multilevel signal (m) or several multilevel signals (m, m′), transmitting each multilevel signal (m, m′) to a receiver unit (3) through a signal lead (2, 2′), forming received signals (RD′, ER′, WR′) corresponding to the transmission signals (RD, ER, WR) in the receiver unit (3) by amplitude filtering from the multilevel signal (m) or multilevel signals (m, m′), weighting the received signals (RD′, ER′, WR′) each with a weighting factor (g1, g2, g3) and combining the weighted received signals g1, WR′, g2 ER′, g3 RD′) to form the control signal (A).