Adaptive filter with coefficient determination based on output of real time clock
US8456230B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2011 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Jan 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03343
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An adaptive filter implemented in a communication system transmitter or receiver has a real time clock associated therewith, and one or more coefficients of the adaptive filter are determined based at least in part on an output of the real time clock. For example, the adaptive filter may comprise a coefficient update engine and a memory for storing a plurality of sets of adaptive filter coefficients in association with respective time indicators derived from the output of the real time clock, with the coefficient update engine being configured to determine a particular one of the sets of filter coefficients for use by the adaptive filter based at least in part on one or more of the time indicators. The time indicators may comprise respective time stamps generated based on the output of the real time clock at respective times at which the corresponding sets of coefficients are determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.