A NETWORK RECEIVER FOR A NETWORK USING DISTRIBUTED CLOCK SYNCHRONIZATION AND A METHOD OF SAMPLING A SIGNAL RECEIVED FROM THE NETWORK

摘要

A network receiver receives from a network an input signal which is sampled by a data sampler of the network receiver at sampling moments. Sampling moments have a relative position in time within a period of time of a single bit. The network receiver further includes a clock bit comparator and a sampling moment adaptor. The clock bit comparator compares lengths of a first time period lapsed while receiving at least five consecutive bits of the signal and of an internal clock time interval representing the same number of bits as a number of bits of the first time period. The sampling moment adaptor adapts the relative position of the sampling moment in dependence of a result of the comparison of the lengths to reduce a difference between the lengths.

主权项

1. A network receiver for a network using distributed clock synchronization, the network receiver comprising:
an input for receiving a input signal from the network, the signal representing a series of bits; a data sampler configured to sample the input signal, the data sampler being configured to sample the input signal at sampling moments to obtain a digital data signal, the sampling moments having a specific relative position in time with respect to the moments in time that a sampled bit starts and that the sampled bit ends; a clock bit comparator configured to compare a length of a first time period lapsed while receiving at least five consecutive bits of the signal with a length of an internal clock time interval representing according to an internal clock of the network receiver the same number of bits as a number of bits of the first time period and configured to generate a difference signal indicating a difference between the lengths of the first time period and the internal clock time interval; a sampling moment adaptor configured to receive the difference signal and being configured to adapt a the specific relative position in time of the sampling moments for correcting for inaccuracies of the internal clock.