Patents by Inventor Costica Caba

Costica Caba 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).

  • Position-measuring device and method for operating the same
    Patent number: 9927234
    Abstract: A position-measuring device includes a module configured to vary a signal period of a position-dependent sinusoidal analog scanning signal. A conversion unit is configured to receive the sinusoidal analog scanning signal and to generate therefrom a sinusoidal digital output signal having a varied signal period compared to the sinusoidal analog scanning signal. A digital-to-analog converter is configured to generate, from the sinusoidal digital output signal, a sinusoidal analog output signal having a varied signal period. The conversion unit is configured to change an operating mode in dependence upon a frequency of the sinusoidal analog scanning signal in such a way that in a case of higher frequencies of the sinusoidal analog scanning signal, the sinusoidal digital output signal is fed to the digital-to-analog converter at a higher output rate and with a smaller word width than in a case of lower frequencies of the sinusoidal analog scanning signal.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: March 27, 2018
    Assignee: DR. JOHANNES HEIDENHAIN GmbH
    Inventors: Costica Caba, Andreas Pommer, Paul Andrei Tutzu, Victor Vasiloiu
  • POSITION-MEASURING DEVICE AND METHOD FOR OPERATING THE SAME
    Publication number: 20170030713
    Abstract: A position-measuring device includes a module configured to vary a signal period of a position-dependent sinusoidal analog scanning signal. A conversion unit is configured to receive the sinusoidal analog scanning signal and to generate therefrom a sinusoidal digital output signal having a varied signal period compared to the sinusoidal analog scanning signal. A digital-to-analog converter is configured to generate, from the sinusoidal digital output signal, a sinusoidal analog output signal having a varied signal period. The conversion unit is configured to change an operating mode in dependence upon a frequency of the sinusoidal analog scanning signal in such a way that in a case of higher frequencies of the sinusoidal analog scanning signal, the sinusoidal digital output signal is fed to the digital-to-analog converter at a higher output rate and with a smaller word width than in a case of lower frequencies of the sinusoidal analog scanning signal.
    Type: Application
    Filed: July 25, 2016
    Publication date: February 2, 2017
    Inventors: Costica Caba, Andreas Pommer, Paul Andrei Tutzu, Victor Vasiloiu