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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.:

US 10063454 B1

PDFFull Text
Date of Patent:
Aug. 28, 2018

Filed:

Sep. 12, 2016

Testing an upstream path of a cable network

Applicant:

Viavi Solutions Inc., Milpitas, CA (US);

Inventors:

Michael D. Gotwals, Greenwood, IN (US);

David W. Jones, Pittsboro, IN (US);

Assignee:

VIAVI SOLUTIONS INC., Milpitas, CA (US);

Attorney:

Mannava & Kang, P.C.

Primary Examiner:

Steve R Young

Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04B 17/309 (2015.01); H04L 29/12 (2006.01); H04B 17/00 (2015.01); H04L 1/24 (2006.01); H04L 25/03 (2006.01); H04L 27/36 (2006.01);
U.S. Cl.
CPC ...
H04L 43/50 (2013.01); H04B 17/00 (2013.01); H04B 17/309 (2015.01); H04L 1/24 (2013.01); H04L 43/026 (2013.01); H04L 43/028 (2013.01); H04L 43/045 (2013.01); H04L 61/6022 (2013.01); H04L 25/03343 (2013.01); H04L 27/366 (2013.01);
Abstract

An apparatus and method for testing an upstream path of a cable network are disclosed. The upstream path is tested by capturing and analyzing upstream data packets generated by a specific terminal device. A test instrument is connected at a node of the cable network. The test instrument establishes a communication session with the headend, informing the headend of an identifier of the device that will generate the test upstream data packet. The test upstream data packet is captured and analyzed at the headend, so that the results of the analysis can be communicated back to the test instrument. To speed up the packet capturing and filtering process, the upstream data packets can be pre-filtered based on packet duration and/or arrival time.

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