Patents by Inventor Jens H. Christiansen

Jens H. Christiansen 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).

  • Patent number: 4530345
    Abstract: A stove for supporting cooking pans and vessels that have rounded or spherical bottoms has three spaced uprights having their upper ends inclined inwardly toward each other. The three uprights are preferably spaced about a heat source and preferably have their upper ends terminate in a single horizontal plane.
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: July 23, 1985
    Inventor: Jens H. Christiansen
  • Patent number: 4463377
    Abstract: In the conventional transformation coding of pictures the value ranges of the coefficients then produced are extended during the performance of the individual arithmetical steps. As a result thereof these coefficients have a great redundancy. According to the invention, the arithmetical steps which are formed by the basic transformation of two values are performed so that as a result of each arithmetical step only the original word length is obtained, because in each arithmetical step a portion of the value range of the result is mapped onto a different area. An example for the technical implementation of such a mapping on modified coefficients and the retransformation of these modified coefficients is described.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: July 31, 1984
    Assignee: U.S. Philips Corporation
    Inventors: Dietrich Meyer-Ebrecht, Jens H. Christiansen
  • Patent number: D294556
    Type: Grant
    Filed: July 1, 1985
    Date of Patent: March 8, 1988
    Inventor: Jens H. Christiansen
  • Patent number: D301000
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: May 9, 1989
    Inventor: Jens H. Christiansen