Method and apparatus for determining a receiver sampling phase for use in diagnosing a channel
US7190718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2002 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Oct 23, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0202
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus for processing a received signal includes an analog-to-digital converter (ADC) configured to produce a sampled signal from a received signal using a candidate sampling phase. An adaptive filter includes adaptive filter coefficients and is configured to receive the sampled signal and converge the filter coefficients based on the candidate sampling phase. A controller includes a module for comparing the converged filter coefficients to filter coefficient thresholds, and a module for determining a largest filter coefficient among one or more excessive filter coefficients that exceed one or more corresponding filter coefficient thresholds. The apparatus is stepped through multiple candidate sampling phases. A best sampling phase is selected based on the largest filter coefficients associated with the candidate sampling phases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.