Patents by Inventor John Garfield Williams

John Garfield Williams has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Systems and methods for visualizing errors in video signals
    Patent number: 9549175
    Abstract: 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.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: January 17, 2017
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: David John Boyes, John Garfield Williams
  • SYSTEMS AND METHODS FOR VISUALIZING ERRORS IN VIDEO SIGNALS
    Publication number: 20150172648
    Abstract: 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.
    Type: Application
    Filed: February 23, 2015
    Publication date: June 18, 2015
    Inventors: David John BOYES, John Garfield WILLIAMS
  • Systems and methods for visualizing errors in video signals
    Patent number: 8964858
    Abstract: 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.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: February 24, 2015
    Assignee: JDS Uniphase Corporation
    Inventors: David John Boyes, John Garfield Williams
  • SYSTEMS AND METHODS FOR VISUALIZING ERRORS IN VIDEO SIGNALS
    Publication number: 20120206611
    Abstract: 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.
    Type: Application
    Filed: April 25, 2012
    Publication date: August 16, 2012
    Applicant: Acterna LLC
    Inventors: David John BOYES, John Garfield WILLIAMS
  • Adaptive pulse width time domain reflectometer
    Patent number: 8222906
    Abstract: An adaptive pulse width (APW) Time Domain Reflectometer (TDR) comprises an enhancement to the standard Pulse TDR by adjusting the effective pulse width as a function of time. Improved resolution for a large range of cable lengths is obtained, as well as allowing an all-in-one view of the processed return signal trace.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: July 17, 2012
    Inventors: Paul Francis Wyar, John Garfield Williams
  • Systems and methods for visualizing errors in video signals
    Patent number: 8189686
    Abstract: 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.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: May 29, 2012
    Inventors: David John Boyes, John Garfield Williams
  • ADAPTIVE PULSE WIDTH TIME DOMAIN REFLECTOMETER
    Publication number: 20090315565
    Abstract: An adaptive pulse width (APW) Time Domain Reflectometer (TDR) comprises an enhancement to the standard Pulse TDR by adjusting the effective pulse width as a function of time. Improved resolution for a large range of cable lengths is obtained, as well as allowing an all-in-one view of the processed return signal trace.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 24, 2009
    Applicant: Acterna LLC
    Inventors: Paul Francis Wyar, John Garfield Williams