Patents by Inventor Hendrik J. Prins

Hendrik J. Prins 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).

  • Method of correcting erroneous values of samples of an equidistantly sampled signal and device for carrying out the method
    Patent number: 5025404
    Abstract: The values of incorrect samples of, for example, a digital audio signal are estimated by means of interpolation. For this purpose an appropriate sampling interval is determined from the number of incorrect samples, in which interval the incorrect samples are situated. Subsequently, a best-fitting recursion formula is determined from the values of the samples, a first estimate being taken for the values of the incorrect samples. By means of this recursion formula the value of a sample is expressed as a weighted sum of the values of a number of preceding samples and an error term. By means of the recursion formula thus found the values of the incorrect samples are subsequently estimated, in such a manner that they are best-fitting values for the recursion formula. The Application also discloses a device for carrying out the method.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: June 18, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Augustus J. E. M. Janssen, Raymond N. J. Veldhuis, Hendrik J. Prins, Lodewijk B. Vries