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:
Mar. 25, 2003
Filed:
Jun. 05, 2000
Stefano Galli, Morristown, NJ (US);
David L. Waring, Randolph, NJ (US);
Telcordia Technologies, Inc., Morristown, NJ (US);
Abstract
A method and system for determining the make-up of a subscriber loop having sending pulses onto a loop and acquiring data based on received echo signals. Determining from the received echoes each discontinuity on the loop and, based on each discontinuity, determining a channel transfer function for each loop section preceding the discontinuity. The transfer function is then used to synthesize an inverse filter. The inverse filter and acquired data are convolved for all the loop sections preceding the discontinuity. The method may be further improved by modeling real and spurious echoes and subtracting these echoes from the echoes generated in the loop.
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