Patent ID: 7349508

Claim:
A method for reconstructing data, clocked at a symbol rate, from an analog signal which has been distorted and attenuated by transmission of a transmission link having a cable transfer function, comprising: amplifying the signal amplitude of the analog signal that is attenuated by the transmission; filtering high-frequency interference of the analog signal at frequencies above the symbol rate, thereby generating an analog amplified filtered signal; discretizing the amplified filtered analog signal by means of an oversampled analog/digital converter to form a digital signal; carrying out a cable approximation by simulation of the inverse of the cable transfer function on the digital signal by means of a digitally implemented cable approximation filter in order to obtain an equalized signal; and interpolating and then low-pass filtering the equalized signal by means of an interpolation and filter unit; and decimating the interpolated and filtered signal by means of a decimator which is arranged in the control loop of a phase-locked loop for recovering the original data from the equalized signal.