Telephone communication system and method over local area network wiring
US6961303B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2000 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Mar 30, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S439/95
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for enabling a local area network wiring structure to simultaneously carry digital data and analog telephone signals on the same transmission medium. It is particularly applicable to a network in star topology, in which remote data units (e.g. personal computers) are each connected to a hub through a cable comprising at least two pairs of conductors, providing a data communication path in each direction. Modules at each end of the cable provide a phantom path for telephony (voice band) signals between a telephone near the data set and a PBX, through both conductor pairs in a phantom circuit arrangement. All such communication paths function simultaneously and without mutual interference. The modules comprise simple and inexpensive passive circuit components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.