Patents by Inventor Edward Daniel Willink

Edward Daniel Willink 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).

  • Digital filters
    Patent number: 5854756
    Abstract: A FIR digital filter comprises a plurality of cascaded subfilters all operable at the same sampling rate. At least one of the subfilters has a z-transform transfer function defined by a partially factorized, n.sup.th -order polynomial in z.sup.-1, where n>2 whose co-efficients are quantized. A process for deriving the z-transform transfer function of the filter is described.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: December 29, 1998
    Assignee: Racal-Datacom Limited
    Inventor: Edward Daniel Willink