The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2009
Filed:
Jul. 30, 2004
Wemer Kozek, Vienna, AT;
Bert Schüszler, Vienna, AT;
Wemer Kozek, Vienna, AT;
Bert Schüszler, Vienna, AT;
Nokia Siemens Networks GmbH & Co. KG, Munich, DE;
Abstract
To test at least one subscriber line that can be connected to a line unit, at least one test signal is emitted along the subscriber line, when the latter is not actively connected, and at least one resultant first echo signal is received, recorded and stored. In the short-circuited or open condition of the subscriber line, the test signal or signals is/are emitted via said line and at least one resultant second echo signal is stored. If an error occurs, the test signal or signals is/are emitted along the subscriber line and at least one resultant error echo signal is recorded, said error echo signal being compared with the first and/or second echo signal or signals. The advantage of the invention is that the location of an interruption in the subscriber line can be determined locally without the use of complex measuring devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile