Patents by Inventor Roman Woyzichovski

Roman Woyzichovski 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 for interpolating at least two position-dependent, periodic analog signals that are dephased relative each other
    Patent number: 8311131
    Abstract: The present invention relates to a method for interpolating, for the purpose of measurement of lengths and/or angles, at least two position-dependent, periodic analog signals that are phase-shifted with respect to each other and that are generated by scanning a measuring scale. According to the inventive method, the analog signals are converted to a digital data stream using a sigma-delta modulator, the data streams are combined with correctional factors and then with each other to generate a string of results, and said string of results is used to generate new correctional values by the use of a quality criterion to be satisfied for interpolation and also to generate the output signals of interpolation. The values (d) of the string of results are accumulated over a specified time interval in order to generate the correctional values (k1, k2) and the output signals (w).
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: November 13, 2012
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Roman Woyzichovski
  • Method for interpolating at least two position-dependent, periodic analog signals that are dephased relative each other
    Publication number: 20050068206
    Abstract: The present invention relates to a method for interpolating, for the purpose of measurement of lengths and/or angles, at least two position-dependent, periodic analog signals that are phase-shifted with respect to each other and that are generated by scanning a measuring scale. According to the inventive method, the analog signals are converted to a digital data stream using a sigma-delta modulator, the data streams are combined with correctional factors and then with each other to generate a string of results, and said string of results is used to generate new correctional values by the use of a quality criterion to be satisfied for interpolation and also to generate the output signals of interpolation. The values (d) of the string of results are accumulated over a specified time interval in order to generate the correctional values (k1, k2) and the output signals (w).
    Type: Application
    Filed: December 4, 2002
    Publication date: March 31, 2005
    Inventor: Roman Woyzichovski