Patents by Inventor Georg Kummerfeldt

Georg Kummerfeldt 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 decoding coded image data utilizing transmission error detection to interrupt decoding and up-dating
    Patent number: 5117288
    Abstract: A method of decoding coded image data, preferably coded according to CCITT Recommendsation H. 261, wherein the data stream is continuously monitored for transmission errors by utilizing the residual redundancy of the data stream, and pixel values reconstructed after the detection of a transmission error are not entered into the predicted-image memory until a subsequent starting code word for a frame or field has appeared.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: May 26, 1992
    Assignee: Licentia Patent-Verwaltungs-GmbH
    Inventors: Volker Eisenhardt, Georg Kummerfeldt, Franz May, Winfried Wolf
  • Method for motion-compensated frame-to-frame prediction coding
    Patent number: 4816906
    Abstract: A process of frame-to-frame prediction coding in which a frame is broken down into a regular block scanning field of n x n pixels and then prior to each prediction, up to four prediction methods, namely (1) block-by-block displacement vector calculation, (2) object-related displacement vector calculation, (3) nullification of the displacement, and (4) nullification of the prediction, are monitored as to the data rate to be transmitted, and the prediction method that leads to the smallest prediction errors is selected for the transmission.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: March 28, 1989
    Assignee: AEG Aktiengesellschaft
    Inventors: Georg Kummerfeldt, Franz May, Winfrid Wolf
  • System for displacement vector searching during digital image analysis
    Patent number: 4800425
    Abstract: In a system for displacement vector searching in digital image analysis, sub-totals of the amount differences in gray value for the pixel data of two images are calculated in parallel for more than one pair of pixels. These sub-totals are subsequently added together in an accumulator unit. In a control computer connected to the accumulator unit, the displacement vector is determined by selecting the minimum of a number of such added values.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: January 24, 1989
    Assignee: Licentia Patent-Verwaltungs-GmbH
    Inventors: Wolfgang Schwerzel, Georg Kummerfeldt