Patents by Inventor MacGregor S. Reid

MacGregor S. Reid 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).

  • Conical scan tracking system employing a large antenna
    Patent number: 4122454
    Abstract: A conical scan tracking system for spacecraft and radio sources employing a large antenna detects small sinusoidal modulation in received power from a source that is off target with a frequency equal to a very low scan rate, an amplitude proportional to angular deviation of the source from the target, and a phase directly related to the direction the source is off target. The sinusoid is digitally correlated with inphase and out-of-phase (90.degree.) scan sinusoids to obtain azimuth/elevation and hour angle/declination signals which are digitally integrated over exactly one scan period (e.g., 10 to 100 sec) to obtain correction signals for an antenna pointing subsystem.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: October 24, 1978
    Inventors: Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch, John E. Ohlson, MacGregor S. Reid