Patents by Inventor Ralph O. Schmidt

Ralph O. Schmidt 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).

  • Simultaneous signals IFM receiver using plural delay line correlators
    Patent number: 5440228
    Abstract: A simultaneous signals frequency measurement receiver comprising a number n of delay line correlators, with a complete set of n, delays, a number 2n of digitizers, computational means to define an m.times.m matrix R, to calculate the mathematically defined eigenvectors of R, to calculate the simultaneously received signal frequencies. This receiver measures the frequencies of simultaneous signals based on a digitized sample of all the correlation outputs of a complete set of delay line correlators.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: August 8, 1995
    Inventor: Ralph O. Schmidt