Patent ID: 8074126

Claim:
A signal receiver comprising: a data recovery module configured to, based on a data input signal, generate (i) an equalized data signal and (ii) a recovered data signal; an error module configured to compare the equalized data signal to an error threshold signal to generate an error information signal; an eye measurement control module configured to (i) receive the error information signal and (ii) generate an eye characteristic signal, wherein the eye measurement control module is configured to generate the eye characteristic signal based on (i) the recovered data signal and (ii) the error information signal; a feedback filter configured to generate a feedback equalization signal based on the recovered data signal, wherein the data recovery module is configured to generate the recovered data signal based on the feedback equalization signal; and a zero-crossing module configured to generate a zero-crossing signal based on the equalized data signal, wherein the eye measurement control module is configured to generate the eye characteristic signal based on the zero-crossing signal.