Patents by Inventor George W. Tusing

George W. Tusing 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).

  • Network Oscilloscope Using Packet Timestamps
    Publication number: 20190207830
    Abstract: A network oscilloscope, including a network interface configured to receive a stream of network data, one or more processors, and a display. The one or more processors generate a timestamp for each data packet parsed from the stream of network data, extract a portion of information from each of the data packets received from the stream of network data, the portion of information being less than an entirety of information in each data packet, and generate a data record indicating extracted information and a timestamp for each data packet parsed from the stream of network data. The display configured to display at least a portion of the data record.
    Type: Application
    Filed: November 30, 2018
    Publication date: July 4, 2019
    Applicant: Tektronix, Inc.
    Inventors: Thomas E. Chabreck, George W. Tusing, Michael S. Overton
  • Measuring channel signal to noise metric using constellation data
    Patent number: 9001912
    Abstract: Described are systems and methods of estimating a Signal-to-Noise (S/N) ratio of an input channel carrying a QAM signal. A Modulation Error Ratio (MER) is calculated for the input QAM signal, but uses only the centermost error values of a constellation of the input QAM signal in generating this modified MER. The modified MER accurately represents the S/N ratio of the input channel carrying the QAM signal. In this way the S/N ratio may be accurately determined using only the received I and Q components of the modulated QAM input signal itself.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: April 7, 2015
    Assignee: Tektronix, Inc.
    Inventors: Daniel G. Baker, Lakshmanan Gopishankar, George W. Tusing
  • MEASURING CHANNEL SIGNAL TO NOISE METRIC USING CONSTELLATION DATA
    Publication number: 20140056342
    Abstract: Described are systems and methods of estimating a Signal-to-Noise (S/N) ratio of an input channel carrying a QAM signal. A Modulation Error Ratio (MER) is calculated for the input QAM signal, but uses only the centermost error values of a constellation of the input QAM signal in generating this modified MER. The modified MER accurately represents the S/N ratio of the input channel carrying the QAM signal. In this way the S/N ratio may be accurately determined using only the received I and Q components of the modulated QAM input signal itself.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 27, 2014
    Applicant: Tektronix, Inc.
    Inventors: Daniel G. Baker, Lakshmanan Gopishankar, George W. Tusing
  • VIDEO DATA STREAM EVALUATION SYSTEMS AND METHODS
    Publication number: 20110271307
    Abstract: A machine-controlled method of evaluating a video data stream having multiple broadcast channels can include selecting at least two video frames for a particular channel, extracting the selected video frames from the video data stream, decoding the extracted video frames, comparing at least one of the decoded video frames to the other decoded video frame(s) or a previously stored video frame, and preparing an evaluation of the video data stream based on the comparing.
    Type: Application
    Filed: December 18, 2009
    Publication date: November 3, 2011
    Inventors: William Lewis Post, Richard G. Morgan, Paul Robinson, Kevin M. Ferguson, Colin Howard, George W. Tusing, Antoni Caceres, Allan Reid, Mark Barnes