Distortion compensation technique
US5541964A · kind A · utility
25Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1995 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Sep 25, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2007/045
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Symbols which are representative of customer data are transmitted in bursts. In the idle mode, i.e., the time intervals between bursts, symbol sequences which are a priori known to the receiver are transmitted. Such idle mode symbols maintain adaptive apparatus, such as NEXT cancellers and equalizers, in their properly converged state. To reduce crosstalk and spectral emissions, the idle mode symbols are selected to be the innermost symbols in the signal constellation encompassing the ensemble of all symbols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.