Patent ID: 7088976
Filing Date: 2006-08-08
Classification: H04L

Abstract:
1. A device for reconstructing data from a received data signal comprising: a clock-signal recovery unit configured to generate a clock signal from the received data signal, the clock-signal recovery unit including a phase-locked loop to which the received data signal is fed as a reference signal and which produces the recovered clock signal in a phased-in state and a detector unit configured to detect an error state in the received data signal which prevents the data from being reliably reconstructed therefrom; a data reconstruction unit configured to reconstruct the data from the received data signal using the recovered clock signal; a switching network including a digital phase-locked loop, the switching network being coupled to the clock-signal recovery unit and configured, when the error state is detected, to provide to the phase-locked loop of the clock-signal recovery unit as its reference signal a signal having a clock rate that corresponds to a mean clock signal from the clock-signal recovery unit which was recovered over a given number of previous data transmissions; and wherein the digital phase-locked loop is provided a signal derived from the recovered clock signal from the clock-signal recovery unit as a reference signal.