Patents by Inventor Bernhard Geyer

Bernhard Geyer 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 circuit arrangement for the precise dynamic digital control of especially piezoelectric actuators for micropositioning systems
    Patent number: 7719165
    Abstract: The invention relates to a method and a circuit arrangement for the precise, dynamic, digital control of especially piezoelectric actuators for micropositioning systems, comprising a regulator, whereby in order to minimise position order deviations the future system behaviour is estimated and current correction signals for the purpose of a feedforward correction are obtained. According to the invention, the signal of the command variable is passed via a switchable bypass to a digital/analog converter with highest resolution for the purpose of reducing the latency times in the feedforward loop of the sampling system, with said converter being operated at the sampling rate of the sampling system. The feedforward loop leads to a fast digital/analog converter which is controlled independent of the sampling system.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: May 18, 2010
    Assignee: Physik Instruemnt (PI) GmbH & Co. KG
    Inventors: Bernhard Geyer, Berthold Besch, Scott Jordan
  • Method and circuit arrangement for the precise dynamic digital control of especially piezoelectric actuators for micropositioning systems
    Publication number: 20070043451
    Abstract: The invention relates to a method and a circuit arrangement for the precise, dynamic, digital control of especially piezoelectric actuators for micropositioning systems, comprising a regulator, whereby in order to minimise position order deviations the future system behaviour is estimated and current correction signals for the purpose of a feedforward correction are obtained. According to the invention, the signal of the command variable is passed via a switchable bypass to a digital/analog converter with highest resolution for the purpose of reducing the latency times in the feedforward loop of the sampling system, with said converter being operated at the sampling rate of the sampling system. The feedforward loop leads to a fast digital/analog converter which is controlled independent of the sampling system.
    Type: Application
    Filed: August 3, 2004
    Publication date: February 22, 2007
    Applicant: PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
    Inventor: Bernhard Geyer