The invention relates to a method for transmitting serial data from a transmitter to a receiver consisting a) in fractionating a transmissible data value into several data words, b) in setting a pulse duration proportional to a non-negative whole number represented by a respective data word, including a constant positive supplement and producing a corresponding impulse, c) in transmitting an impulse (IH, IM, IL) having a respective set impulse duration from the transmitter to the receiver, and d) in detecting respective impulse duration on the receiver and in restoring a respective data word therefrom and, subsequently, the data value.