Patents by Inventor Karl R. Scheuter

Karl R. Scheuter 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 minimizing errors in the digital processing of electrical signals
    Patent number: 4709395
    Abstract: A method and apparatus for minimizing errors in digital processing of electrical signals whereby a digital input signal is divided into a digital useful signal having a lower resolution than the input signal and into a digital error signal having lower resolution than the input signal. A deviation of the useful signal is reproduced from the input signal and a check is performed to see whether the sum error of a plurality of successive useful signal values crosses a prescribed upper or lower threshold. When a threshold is crossed, an error value of the useful signal which comes closest to this threshold is identified and the useful signal and the error signal of this signal value are corrected such that the sum error no longer crosses the threshold.
    Type: Grant
    Filed: July 17, 1984
    Date of Patent: November 24, 1987
    Assignee: Dr.-Ing. Rudolf Hell GmbH
    Inventors: Gerhard Fischer, Karl R. Scheuter