Patents by Inventor Bryan Scott Johnston

Bryan Scott Johnston 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).

  • Inducing response signatures in a communication network
    Patent number: 9537680
    Abstract: Methods and systems are provided in which a network induces different distortions in signals traversing different segments of the network. The distortions may be used to identify locations on the network of devices that transmit and receive the signals. The distortions may be reflected in equalization coefficients programmed into transmitting or receiving devices, which may be used to pre or post filter the signals to compensate for the distortions.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: January 3, 2017
    Assignee: Comcast Cable Communications, LLC
    Inventors: Lawrence D. Wolcott, Phillip F. Chang, Bryan Scott Johnston
  • INDUCING RESPONSE SIGNATURES IN A COMMUNICATION NETWORK
    Publication number: 20150256430
    Abstract: Methods and systems are provided in which a network induces different distortions in signals traversing different segments of the network. The distortions may be used to identify locations on the network of devices that transmit and receive the signals. The distortions may be reflected in equalization coefficients programmed into transmitting or receiving devices, which may be used to pre or post filter the signals to compensate for the distortions.
    Type: Application
    Filed: January 7, 2015
    Publication date: September 10, 2015
    Inventors: Lawrence D. Wolcott, Phillip F. Chang, Bryan Scott Johnston
  • Inducing response signatures in a communication network
    Patent number: 8971394
    Abstract: Methods and systems are provided in which a network induces different distortions in signals traversing different segments of the network. The distortions may be used to identify locations on the network of devices that transmit and receive the signals. The distortions may be reflected in equalization coefficients programmed into transmitting or receiving devices, which may be used to pre or post filter the signals to compensate for the distortions.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: March 3, 2015
    Assignee: Comcast Cable Communications, LLC
    Inventors: Lawrence D. Wolcott, Phillip F. Chang, Bryan Scott Johnston
  • INDUCING RESPONSE SIGNATURES IN A COMMUNICATION NETWORK
    Publication number: 20110243214
    Abstract: Methods and systems are provided in which a network induces different distortions in signals traversing different segments of the network. The distortions may be used to identify locations on the network of devices that transmit and receive the signals. The distortions may be reflected in equalization coefficients programmed into transmitting or receiving devices, which may be used to pre or post filter the signals to compensate for the distortions.
    Type: Application
    Filed: June 8, 2011
    Publication date: October 6, 2011
    Applicant: COMCAST CABLE COMMUNICATIONS, LLC
    Inventors: Lawrence D. Wolcott, Phillip F. Chang, Bryan Scott Johnston