Method and apparatus for enabling the transmission of multiple wide bandwidth electrical signals
US5966056A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1996 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Jul 3, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for enabling the transmission of high bandwidth analog and digital data over cable lengths of more than 1000 feet through low cost semishielded or unshielded four wire cable are disclosed. Three balanced mode signals are transmitted using four conductors. In this configuration, the components A+ and A- of a first balanced mode signal A are respectively carried on a first pair of conductors, the components B+ and B- of a second balanced mode signal B are respectively carried on a second pair of conductors, and the components C+ and C- of a third balanced mode signal C are respectively carried on a pair of conductors synthesized through the commonality of the first and second conductor pairs, respectively. Using this technique, a new additional virtual ground plane is created wherein signal energy can be transmitted without interfering or combining with the other signals being transmitted on the remaining conductor pairs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.