Error signature analysis for data and clock recovery in a communication system

Patent metadata

Field	Value
Publication number	US-9014313-B2
Application number	US-201213368314-A
Country	US
Kind code	B2
Filing date	Feb 7, 2012
Priority date	Feb 7, 2012
Publication date	Apr 21, 2015
Grant date	Apr 21, 2015

Abstract

Described embodiments recover timing and data information from a signal received via a communication channel. An analog-to-digital converter (ADC) operating at a baud rate of the communication channel generates an actual ADC value corresponding to each bit sample of the received signal. A fast symbol estimation module estimates, based on the actual ADC value, a bit value corresponding to each bit sample. The fast symbol estimation module operates at a digital clock rate. The estimated bit values are provided to a timing recovery module. An ADC reconstruction module, based on a first number of pre-cursor estimated bit values, an estimated cursor bit value, and a second number of post-cursor estimated bit values, generates a reconstructed ADC value corresponding to each bit sample. Based on the reconstructed ADC values, the estimated bit values, and the actual ADC values, a corrected bit value is generated for each bit sample.

First claim

We claim:

1. A method of recovering timing and data information from a signal received by a receiver of a communication system via a communication channel, the method comprising:
generating, by an analog-to-digital converter (ADC) of the receiver, the ADC operating at a baud rate of the communication channel, W actual ADC values, each actual ADC value corresponding to a bit sample of a window of W bit samples of the received signal, wherein W is a positive integer;
estimating, b…

Assignees

• Chmelar Erik V
• Lsi Corp

Inventors

• Chmelar Erik V

Classifications

• H04L25/03057 Primary

  Electricity · mapped topic