Patents by Inventor Randal K. Hrytzak

Randal K. Hrytzak 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 and apparatus for adaptively interpolating a digital image
    Patent number: 5327257
    Abstract: Digital image processing apparatus for interpolating a digital input image into an interpolated output image, in one embodiment of the invention, comprises an input buffer (12) for accommodating pixel data of the input image and a coefficient buffer (14) for storing precalculated interpolation weighting coefficients prior to real time image interpolation. The coefficient buffer (14) comprises a first memory segment (22) for containing a set of precalculated sharp interpolating weighting coefficients obtained by using a sharp interpolating algorithm, a second memory segment (24) for containing a set of precalculated soft weighting coefficients obtained by using a soft interpolating algorithm and a third memory segment (26) for containing a set of precalculated weighting coefficients representative of a predetermined characteristic of the input image, such as contrast or density.
    Type: Grant
    Filed: February 26, 1992
    Date of Patent: July 5, 1994
    Assignee: Cymbolic Sciences International Ltd.
    Inventors: Randal K. Hrytzak, Alastair M. Reed