PETER HARRISON SCHMIDT
Pilots at Ewell Ave, Lexington, MA

6654914, Nov 25, 2003

May 28, 1999

09/322107

David M. Kaffine - North Billerica MA
Joseph S. Rosen - Chicago IL
Peter H. Schmidt - Lexington MA

Teradyne, Inc. - Boston MA

G06F 1130

714 43, 714 4, 714 41, 714 46

Techniques are provided for improved fault isolation and fault reduction. A system for use with a data network includes multiple diagnostic units each adapted to communicate with the network including to a network user. A central controller is operatively connected to the diagnostic units, the controller being adapted to communicate with and coordinate operations of the diagnostic units, to instruct the diagnostic units to perform tests adapted to help isolate a network fault, and to analyze test results received from a diagnostic unit to attempt to determine the network fault. Various methods for improving fault isolation and fault reduction are also provided.

6823479, Nov 23, 2004

Feb 14, 2000

09/503352

David Kaffine - Billerica MA
Anthony C. Hughes - Belmont MA
William Minckler - Waltham MA
Neelesh Agrawal - Burlington MA
Peter H. Schmidt - Lexington MA

Teradyne, Inc. - Boston MA

G06F 1100

714 43, 714 4

A testing tool for Internet Service Provider (ISP) network engineers which is used to diagnose network faults, characterize network performance and evaluate new equipment and software releases. The tool can be used to schedule and run proactive tests to identify network problems before subscribers are affected. Further, the tool can be used to provide testing on demand to quickly isolate the root cause of a problem identified by the tool or by network management systems or subscribers. The tool is topology independent and thus does not have to be reconfigured as the network changes. The tool only sends traffic as directed by the network engineer and thus does not generate undesirable heavy network traffic loads, unless such a heavy network loads are desired by the network engineer.

7305466, Dec 4, 2007

Apr 19, 2000

09/553447

David M. Kaffine - Billerica MA, US
Peter H. Schmidt - Lexington MA, US
Joseph S. Rosen - Chicago IL, US
Jonathan Wolf - Belmont MA, US
Arthur Mellor - Arlington MA, US

Teradyne, Inc. - Boston MA

G06F 15/173, G06F 13/10, G06F 11/00, G06F 15/16, G06F 9/44

709224, 709223, 709236, 703 21, 703 22, 703 24, 714 4, 714 25, 714 28, 714 37

Techniques are provided for improved fault isolation and fault reduction. A system for use with a data network includes multiple diagnostic units each adapted to communicate with the network including to a network user. A central controller is operatively connected to the diagnostic units, the controller being adapted to communicate with and coordinate operations of the diagnostic units, to instruct the diagnostic units to perform tests adapted to help isolate a network fault, and to analyze test results received from a diagnostic unit to attempt to determine the network fault. Various methods for improving fault isolation and fault reduction are also provided.

7127506, Oct 24, 2006

Apr 19, 2000

09/552105

Peter H. Schmidt - Lexington MA, US
Peter J. White - Wellesley MA, US
David B. Tuttle - Reading MA, US
Davis Foulger - Wappingers Fall NY, US
Arthur Mellor - Arlington MA, US

Teradyne, Inc. - Boston MA

G06F 15/173

709224, 714 41, 714 43, 714 46

A diagnostic unit which detects instances of misconfiguration of a subscriber's PC is presented. Many problems experienced by PC subscribers attempting to access a network are related to misconfiguration of the subscriber's PC. The diagnostic unit is able to communicate with the subscriber's misconfigured PC through Fault Tolerant Protocol stacks. The diagnostic unit emulates services such as log-in, authentication, e-mail and the Internet to the subscriber. The diagnostic unit examines the traffic sent by the subscriber to detect instances of misconfiguration and reports the detected configuration of the subscriber's PC.