Providing digital services to telephone subscribers
US6359906B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1998 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Feb 24, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13381
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A local telecommunications network system IS arranged to provide a first asymmetric digital subscriber line (ADSL) service in a first frequency band to a first set of subscribers and a second very high bit rate digital subscriber line (VDSL) service in a second frequency band higher than the first frequency band to a second set of subscribers. Interference between the two types of digital traffic within the multi-pair feeder cables leading to the exchange is suppressed by low pass filtering the ADSL traffic and high pass filtering the VDSL traffic. The filtering may be applied to the line cards to which each subscriber line is connected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.