Coupling discriminator and interface adaptor
US4647912A · kind A · utility
27Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1985 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Dec 20, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A coupling discriminator for Ethernet standard local area network interface equipment monitors the electrical characteristics of an incoming differential signal pair, discriminates between a signal pair that is direct coupled and a pair that is transformer coupled, and configures the interface equipment for operation with the type of coupling detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.