Acterna LLC

Other

Jds Uniphase Corporation

Viavi Solutions Inc.

David John Boyes

John Garfield Williams

Jason Lee Davis

Paul Marr

Michael Thad Ward

Bill Michael Kowalkowski

Systems and methods for analyzing the performance of a digital network include capturing a stream of digital data, e.g., internet protocol (IP) packets, that represent streaming video, identifying which of the IP packets include bit errors, determining to which of a plurality of pixels the IP packets including bit errors belong and identifying such pixels as corrupted pixels, and illuminating only the corrupted pixels on a display of a tool. Corrupted pixels in different time blocks can be displayed with different colors to gain a better appreciation of the bit error rate over time.

Systems and methods for visualizing errors in video signals

Systems and methods for analyzing the performance of a digital network include capturing a stream of digital data, e.g., interne protocol (IP) packets, that represent streaming video, identifying which of the IP packets include bit errors, determining to which of a plurality of pixels the IP packets including bit errors belong and identifying such pixels as corrupted pixels, and illuminating only the corrupted pixels on a display of a tool. Corrupted pixels in different time blocks can be displayed with different colors to gain a better appreciation of the bit error rate over time.

A method and apparatus for testing a VoIP telephone line are provided, the method including determining which of a plurality of VoIP call control protocols and/or CODECs is compatible with the telephone line, and conducting a series of tests on the telephone line in accordance therewith. The method and apparatus also includes steps and the means to connect to a network and capturing a stream of data therefrom to determine configuration settings of a VoIP telephone connected thereto to facilitate the previous testing.

Voice over internet protocol (VoIP) testing

In conventional testing, the user is using an on-hand computing device to control testing; however, for the present invention the user is at the access point and the computer is remote, e.g. nearby or in the technician's vehicle, and not being used by the user to run the tests. The present invention provides a means to conveniently connect a customer provided network access device, e.g. a USB 'dongle' modem, via a wireless link to the remote computer, which is providing the test application. The computer is remote, and the remote module device extends the reach of the commercial dongle modem so it is not necessary to carry the computer to the test access point.

Remote access integrated tester

A direct way to measure network delay of a packet switched network uses a ping signal injected into the voice stream at a source telephone. The ping signal travels together with the voice stream to a destination telephone. The destination telephone detects the ping signal and returns it to the source telephone through the packet switched network. The source telephone detects the return ping signal sent by the destination telephone and calculates the network delay between the two telephones based on the difference between the time of transmitting the ping signal and the time of detecting the return ping signal. As the ping signal travels in the same path as the voice stream, the network delay between the two telephones is calculated directly and accurately.

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Roanoke, VA, United States of America

David John Boyes