System for connecting computers via telephone lines
US5003579A · kind A · utility
45Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 7, 1989 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Sep 7, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system for connecting a plurality of computers and computer peripherals into a network using two unshielded lines of the type included in a telephone cable. A floating ground isolation circuit is used to aid suppression of non-zero static voltages and voltage surges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.