Patents by Inventor Steve Munroe

Steve Munroe 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).

  • Patent number: 7668235
    Abstract: A method of jitter measurement is provided and includes sampling a device-under-test (DUT) output signal, having a repeating pattern, using an asynchronous clock over a desired period of time and mapping the samples onto a single period of the repeating pattern. Each period of the repeating pattern is sampled at least twice. A sampling frequency of the asynchronous clock is based on user inputs. Sampling the DUT signal comprises capturing logical state information representing each edge of a single period of the DUT signal at least once. The method further includes, separating the samples into subsets and mapping the sample subsets onto a single period of the repeating pattern wherein the samples within a particular subset are mapped to a set of times which are in the same order as in which the samples were obtained, processing the samples within each subset independently of samples in other subsets, and combining results of the processed subsets and processing the combined results of the subsets.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: February 23, 2010
    Assignee: Teradyne
    Inventors: Michael Panis, Steve Munroe, John Pane
  • Publication number: 20070118315
    Abstract: A method of jitter measurement is provided and includes sampling a device-under-test (DUT) output signal, having a repeating pattern, using an asynchronous clock over a desired period of time and mapping the samples onto a single period of the repeating pattern. Each period of the repeating pattern is sampled at least twice. A sampling frequency of the asynchronous clock is based on user inputs. Sampling the DUT signal comprises capturing logical state information representing each edge of a single period of the DUT signal at least once. The method further includes, separating the samples into subsets and mapping the sample subsets onto a single period of the repeating pattern wherein the samples within a particular subset are mapped to a set of times which are in the same order as in which the samples were obtained, processing the samples within each subset independently of samples in other subsets, and combining results of the processed subsets and processing the combined results of the subsets.
    Type: Application
    Filed: November 10, 2005
    Publication date: May 24, 2007
    Applicant: Teradyne, Inc.
    Inventors: Michael Panis, Steve Munroe, John Pane