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:
Aug. 20, 2002
Filed:
Nov. 14, 2000
Linley F. Gumm, Beaverton, OR (US);
Tektronix, Inc., Beaverton, OR (US);
Abstract
Cable loss correction of distance to fault (DTF) and time domain reflectometer (TDR) measurements obtains distances to impulses representing reflections from a cable under test from a time domain representation of the cable. For each impulse a plurality of frequency data are generated and amplitude corrected based upon the cable loss at the given distance to the impulse. The resulting frequency data are then converted back to the time domain to present a time domain representation of a corresponding lossless cable showing the impulses at appropriate amplitudes. The impulses representing the reflections from the cable may be obtained by a vector network analyzer that obtains amplitude and phase data for a plurality of test signal frequencies, which data is then converted to the time domain to show the impulses and the distances of the impulses from the measurement end of the cable.