Patent · US Expired

Method for testing subscriber access lines

US7286952B1 · kind B1 · utility

0Cited by

7References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Svend Christensen · Rua W Três, DK
Ludwig Dirscherl · Birkenfeld, DE
Ulrich Liefländer · Gilching, DE
Hans-Werner Rudolf · Munich, DE
Franz Schmoller · Germering, DE

Key dates

Filing date	Sep 27, 1999
Grant date	Oct 23, 2007
Priority date	—
Expiry date	Sep 27, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH04M3/005
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A method for testing subscriber access lines wherein the test is carried out locally, online and virtually all the time with the assistance of the digital signal processor for the subscriber line. The test results are gathered at a central point and are signaled from there; when required, to specific locations in the subscriber access network, for example, to a distribution node where maintenance work is currently being carried out.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.