System to pre-qualify copper subscriber loops for high bandwidth access service using subscriber or network generated tones
US6459773B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | May 5, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The system to pre-qualify copper subscriber loops for high bandwidth access service determines electrical characteristics of a subscriber line served by a central office switch from a location remote from said subscriber line absent a direct metallic connection exclusively to said subscriber line. This is accomplished where the subscriber line has subscriber equipment connected thereto at an end distant from said central office switch by establishing a communication connection through the central office switch between the service provider and the subscriber equipment connected to said subscriber line. In response to the establishment of this communication connection, electrical signals, comprising subscriber or network generated tone signals, are applied to the subscriber line to enable the service provider to determine the electrical characteristics of the subscriber line by analyzing the received tone signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.