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:
Dec. 05, 2017
Filed:
Jul. 28, 2015
Applicant:
Jds Uniphase Corporation, Milpitas, CA (US);
Inventors:
Kyle Harris, Indianapolis, IN (US);
Daniel K. Chappell, Greenwood, IN (US);
Assignee:
VIAVI SOLUTIONS INC., Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/173 (2011.01); H04N 17/00 (2006.01); H04B 3/46 (2015.01);
U.S. Cl.
CPC ...
H04N 17/004 (2013.01); H04B 3/46 (2013.01);
Abstract
A TDR technique for performing in-service distance-to-fault measurements in cable TV networks is disclosed. Using a cable network tester configured to generate chirped probe pulses and to perform pulse-matched filtering and averaging of received echoes, network faults may be detected without interfering with the downstream reception. The probe pulse transmission may be timed to take advantage of the error correction coding in the network.