XDSL modem having time domain filter for ISI mitigation
US6233276A · kind A · utility
12Cited by
18References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1999 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Sep 13, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03522
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An xDSL communication system having a reduced number of digital filter coefficients. The full-length equalizer channel impulse response is truncated by first selecting a subset of contiguous filter samples followed by windowing and convolution with a time domain representation of a frequency domain filter. The result is a shorter equalizer having fewer coefficients so as to improve data transmission rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.