Equalization system for modems in a polled arrangement
US4489416A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1983 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Mar 18, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/01
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a system in which a central modem individually polls a number of remotely located modems for data, an adaptive equalizer in the central modem is initially trained to minimize communication link interference from a remote modem and develops a set of equalizer coefficients based on the initial training which is transmitted to the remote modem and stored there for future use while the central modem goes on to do the same with other remote modems. When a remote modem is polled, the stored equalizer coefficients are used to set the adaptive equalizer of the remote modem so the adaptive equalizer of the central modem does not have to be retrained for each individual remote modem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.