Patents by Inventor Pedro Max Janowitz

Pedro Max Janowitz 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).

  • Time interval measurement method and apparatus
    Patent number: 3999128
    Abstract: A method and apparatus is disclosed for providing accurate time interval measurements in an oscilloscope. A first voltage which is proportional to the time position of a first selected point along a linear time-base sweep is stored and applied to a subtractor circuit. A second voltage proportional to the time position of a second selected point along the sweep is applied to the subtractor, and the difference between the first and second voltages is obtained. This difference, which is proportional to the time interval between the first and second selected points, is applied to a digital voltmeter calibrated to provide a display in time units.
    Type: Grant
    Filed: April 18, 1975
    Date of Patent: December 21, 1976
    Assignee: Tektronix, Inc.
    Inventors: Pedro Max Janowitz, James William Godwin