Patents by Inventor Rudy J. van der Plassche

Rudy J. van der Plassche 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).

  • Receiver
    Patent number: 5230011
    Abstract: Receiver having an A/D converter for digitally sampling an analog signal modulated on a carrier frequency at a first sampling frequency, consecutively coupled to a digital quadrature mixer stage for a carrier frequency shift of the digitized modulated signal from the A/D converter, a digital filter device for selecting the phase quadrature signals of the quadrature mixer stage and for decimating the sampling frequency from the first sampling frequency to a second sampling frequency, and a digital demodulation device.
    Type: Grant
    Filed: October 24, 1991
    Date of Patent: July 20, 1993
    Assignee: U.S. Philips Corporation
    Inventors: Gerardus C. M. Gielis, Rudy J. van der Plassche