Virtual local area network
US4823338A · kind A · utility
153Cited by
2References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 3, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Aug 3, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S370/908
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system is disclosed for completing communication connections from end-users served by a connectionless (broadcast) type system in a manner which allows expansion of the calling area beyond the immediate physical limitations of the broadcast media. The system is based upon a device for mediating between the connectionless system and a connection oriented system. The device creates logical local area networks interconnectable by the connection oriented system. Calling user identification is used in conjunction with call completion data stored in a central memory for controlling all interconnections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.