Patents by Inventor Frederic Nitz

Frederic Nitz 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).

  • Waveform disturbance detection apparatus and method
    Patent number: 4694402
    Abstract: A waveform disturbance detection apparatus for detecting disturbances in alternating current electromagnetic energy waveform, the alternating current electromagnetic energy waveform having a plurality of periodic, substantially similar cycles. The detection apparatus comprises converter means for sampling the electromagnetic energy waveform, generating a plurality of samples, and converting the samples into digital signals. The detection apparatus also comprises processing means for evaluating the digital signals so as to detect disturbances in the electromagnetic energy waveform, wherein the processing means detects the disturbances by comparing a particular one of the digital signals that represents a particular one of the samples in a particular one of the cycles with a corresponding one of the digital signals that represents a corresponding one of the samples from the remaining cycles.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: September 15, 1987
    Assignee: Basic Measuring Instruments
    Inventors: Alexander McEachern, Frederic Nitz