Patents by Inventor Rov E. Greeff

Rov E. Greeff 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).

  • BPSK modulator for a digital signal transmitter
    Patent number: 5502745
    Abstract: An improved digital data modulator is provided for a digital transmitter. The digital data modulator comprises of a pair of digital data synthesizers which are controlled in a manner which produces complex conjugate modulated data signals of the input signals. Summing means are provided to sum the outputs of the digital data synthesizers in a manner which removes the imaginary components and simultaneously reduces the side load power without employing conventional filters.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: March 26, 1996
    Assignee: Unisys Corp.
    Inventors: Bruce H. Williams, Rov E. Greeff, Glenn A. Arbanas