Patents by Inventor Lewis R. Wilson

Lewis R. Wilson 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).

  • Phase modulating with odd and even finite power series of a modulating signal
    Patent number: 3996532
    Abstract: Method and apparatus for producing a phase-modulated waveform having a high degree of linearity between the modulating signal and the phase of the modulated carrier signal. Two signals representing finite odd and even power series transformations of the modulating signal are produced and multiplied with two quadrature components of the input carrier signal, respectively. One of the multiplied signals is subtracted from the other and the resulting signal is hard-limited to produce a phase-modulated output signal. The means for producing the two signals representing the odd and even power series of the modulating signal includes means for varying the coefficients of the two power series. By means of an existing computer program, the coefficients of the two power series are selected such that there is an extremely high degree of linearity between the modulating signal and the phase of the modulated carrier signal.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: December 7, 1976
    Inventors: James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher, Chase P. Hearn, Richard H. Couch, Lewis R. Wilson