Method and apparatus for equalization of data transmission system
US4797898A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1986 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Nov 21, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/141
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A data communication system, comprising a first and a second transceiver coupled together through a transmission channel, the transmission channel having transmission characteristics. A measurement circuit is coupled to the first transceiver for measuring the effects of the transmission characteristics upon a known signal transmitted from the second transceiver to the first transceiver a mapping of the transmission characteristics to a code is made and the code is transmitted from the first transceiver to the second transceiver. A plurality of predetermined filters for use in filtering signals to be transmitted by the second transceiver is selected upon receipt of the transmitted code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.