Patent ID: 9596104
Date: 2017-03-14
CPC Classifications: H04B,H04L,H04Q

Claim:
1. A method of blind tap coefficient adaptation in an optical system, the method comprising: equalizing a first portion of a received digital data signal using a first set of predetermined tap coefficients, wherein the received digital data signal includes random digital data; generating a first eye diagram from a first portion of an equalized signal, wherein the first portion of the equalized signal is based on the first portion of the received digital data signal; equalizing a second portion of the received digital data signal using a second set of predetermined tap coefficients; generating a second eye diagram from a second portion of the equalized signal, wherein second portion of the equalized signal is based on the second portion of the received digital data signal; determining which of the first set of predetermined tap coefficients or the second set of predetermined tap coefficients results in a data signal having a higher signal quality based on an evaluation of the first eye diagram and the second eye diagram; and adopting as an initial set of tap coefficients, the first set of predetermined tap coefficients or the second set of predetermined tap coefficients according to the determination.