Viavi Solutions Inc.

Acterna LLC

Robert Flask

Loren R Eggert

Raleigh Benton Stelle, Iv

Walter L Miller

Michael D Gotwals

Mark R Darragh

John Joseph Bush

Alvin R Ruth

Kevin J Oliver

A method, apparatus and system for determining and mapping potential net service impairments using multiple datasets associated with a network.

Method and system for mapping potential net service impairments

An intelligent monitoring and testing system for a cable network determines measurements for a cable plant (CP), including cable modems (CMs) and common network elements, Metrics determined from the measurements are analyzed to detect a service issue and a service sub-issue. Machine learning is applied to the metrics and other related data to determine an optimized workflow for diagnosing, locating, and remediating the service issue and service sub-issue.

Intelligent monitoring and testing system for cable network

A method and test instrument for validating one or more out of band (OOB) channels in a CATV network, particularly one having a Remote PHY architecture. The method and test instrument may quickly and efficiently determine if an OOB channel is carrying valid data and is therefore 'active.'

Method and apparatus providing out of band validation by content analysis in a cable TV network

A test instrument can be coupled to a test point in a network and measure signals in the network that are received via a port connected to the test point. The test instrument may connect to the network via multiple test points. The measurements of the signals received through one or more of the test points are correlated to detect a problem in the network and determine a suggested action.

Network test instrument with testing session analysis

A method and test instrument for validating MPEG content in a CATV network, particularly one having a Remote PHY architecture.

Method and apparatus providing optimized MPEG validation in a cable TV network

A method, an apparatus and a system for determining stress on a low density parity check (LDPC) process for a network using orthogonal frequency division multiplexing (OFDM).

Methods and systems for determing stress on a low density parity check (LDPC) process for a network using orthogonal frequency division multiplexing (OFDM)

A test instrument can be coupled to a test point and measure signals in the network. The test instrument may determine whether the test instrument is connected to a cable of the network and provide notification if the test instrument is not connected to a cable. The test instrument may also detect when it is connected to a customer premises that has been previously been tested through reflected signal signatures.

Network test instrument with cable connection and signature testing

Methods and systems for determining stress on a low density parity check (LDPC) process for a network using orthogonal frequency division multiplexing (OFDM)

A home network testing device includes an input port with any one or more of a variety of different connectors for receiving different types of communication cables, e.g. coaxial cable, telephone cable, and electrical cable; and a testing apparatus section with a variety of different testing apparatuses for testing for the presence of different forms of home networks, e.g. MoCA, HomePlug, and HPNA. The present invention uses discrete components to analyze the physical layer in the time domain, looking for a specifically timed RF power pulse that is characteristic of and different in each of the network protocols.

Home network testing

The testing device of the present invention includes an RF input for connecting to a subscriber network, which has been disconnected from a communication network, for receiving ingress RF signals leaked into the subscriber network from outside sources. The device includes a signal processor for scanning the RF signals for power levels at a plurality of frequencies, and generating power level signals based at least in part on the power levels. Ideally, the power levels are compared to a threshold power level representing an acceptable amount of ingress, and a pass/fail indicator is displayed based on whether the power levels exceed the threshold power level.

Growing community of inventors

New Palestine, IN, United States of America

Robert Flask