Patents by Inventor James I. Clemmons, Jr.

James I. Clemmons, Jr. 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).

  • Frequency domain laser velocimeter signal processor
    Patent number: 4786168
    Abstract: A laser velocimeter signal processor for measuring the signal frequency within a signal burst. The input signal is converted to digital by an ADC 16 and then shifted into shift registers 30 and 31. An automatic gain circuit 15 controls the gain of the input signal. A signal integration circuit 32 determines when a signal burst has been captured by the shift registers and and then transfers the contents of the registers to data latches 33 and 34. The data in data latches 33 and 34 is processed by digital bandpass filters 57-63, square law detectors 64-70, burst counters 71-77 and signal processor 78 to determine the frequency of the signal within the captured signal burst.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: November 22, 1988
    Assignee: The United States of America as represented by the United States National Aeronautics and Space Administration
    Inventors: James F. Meyers, John W. Stoughton, James I. Clemmons, Jr., Sharad V. Kanetkar, Andreas E. Savakis
  • Instrument for determining coincidence and elapse time between independent sources of random sequential events
    Patent number: 4392749
    Abstract: An instrument that receives pulses from a primary external source and one or more secondary external sources and determines when there is coincidence between the primary and one of the secondary sources. The instrument generates a finite time window (coincidence aperture) during which coincidence is defined to have occurred. The time intervals between coincidence apertures in which coincidences occur are measured.
    Type: Grant
    Filed: July 10, 1981
    Date of Patent: July 12, 1983
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: James I. Clemmons, Jr.