Patent ID: 7085372

Claim:
A method for transmitting a transmission signal via a two-core line, in which case, with the aid of corresponding transmission devices, two partial signals are generated and are transmitted via a respective core of the line, and in which case the transmission signal is formed by the alternating-current difference between the two partial signals, wherein a calibration of output levels occurring at those connections of the transmission devices which are connected to the cores of the line in relation to one another is carried out such that the output levels of the connections are measured, compared and set in such a way that they essentially correspond, in that, after the calibration of the output levels of the transmission devices, the transmission signal is transmitted via the cores of the line, and wherein, after the measurement and comparison of the output levels of those connections of the two transmission devices which are connected to the two cores, depending on the comparison result, an output level correction value is generated and taken into account in a corresponding one of the transmission devices during the subsequent transmission of the corresponding partial signal.