Patents by Inventor Werner Schmutzler

Werner Schmutzler 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 measuring resistances, in particular resistances of subscriber's
    Patent number: 4882742
    Abstract: Before each actual resistance measurement, a first preliminary measurement with short-circuited measuring circuit and a second preliminary measurement with the measuring circuit operating at no-load are carried out. From the measured values of the preliminary measurement steps, a weighting factor is calculated, by which, subsequently, the difference between the actual measured value and the short-circuit value is multiplied to form the actual measurement results.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: November 21, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Kaiser, Werner Schmutzler
  • Method for determining telephone dial pulse parameters independently of subscriber line length
    Patent number: 4839920
    Abstract: A method is disclosed for measuring telephone dial pulse parameters independent of telephone subscriber line length. To avoid distortions resulting from varying subscriber line lengths, there is performed during the first pulse interval of a dial pulse series to be measured, a voltage measurement with results in a value that depends on the line length, and, in accordance with this value, the times measured for pulse interval and pulse duration of the dial pulse series are corrected.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: June 13, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Gabriele Held-Elbert, Wolfgang Kaiser, Wilhelm Koch, Werner Schmutzler
  • Method and apparatus for determining the value of analog voltages occurring on telephone subscriber lines of a digital telephone exchange
    Patent number: 4691337
    Abstract: Analog voltages are collected by scanning the two wires of a subscriber line; the values are subjected to an analog-digital conversion and fed to a microprocessor (MC) which computes the desired measuring values from the results of said conversion. Thus, from a single measuring operation performed at two measuring points, nine different voltage values can thus be obtained including dc, ac and external voltages between each wire and ground and between the two wires.
    Type: Grant
    Filed: April 9, 1986
    Date of Patent: September 1, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventors: Gabriele Held-Elbert, Wolfgang Kaiser, Werner Schmutzler