Patents by Inventor Marco Landert

Marco Landert 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).

  • Process and device for the automatic location of reference markers
    Patent number: 6734952
    Abstract: In geodetic measuring systems and measuring devices (14) there exists a need to find and detect, rapidly and automatically, marker points to be measured that are provided with a marker (retro reflector) (2a). For the rapid detection, identification and determination of the horizontal angles of such a marker, even at greater distances, electromagnetic radiation in the form of a vertical fan (17) is transmitted by a transmitter unit (1) whose radiation is received, after reflection from the marker, by a receiving unit with a view field in the form of a vertical fan. By analyzing the signal strength and the apparent object size, a plausibility test and a reliable suppression of foreign or interference markers can be achieved. Such a marker searching device is marked by a selective analysis of specific characteristics of a marker detected. On the basis of the plausibility test, a rapid, certain and robust location of markers is possible.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: May 11, 2004
    Assignee: Leica Geosystems, AG
    Inventors: Paul Benz, Markus Geser, Roland Graf, Bruno Pfiffner, Marcel Buerki, Marco Landert, Markus Hammerer, Jürg Hinderling, Günther Hanns, Gerhard Bayer
  • Process and device for the automatic location of reference markers
    Publication number: 20030169414
    Abstract: In geodetic measuring systems and measuring devices (14) there exists a need to find and detect, rapidly and automatically, marker points to be measured that are provided with a marker (retro reflector) (2a). For the rapid detection, identification and determination of the horizontal angles of such a marker, even at greater distances, electromagnetic radiation in the form of a vertical fan (17) is transmitted by a transmitter unit (1) whose radiation is received, after reflection from the marker, by a receiving unit with a view field in the form of a vertical fan. By analyzing the signal strength and the apparent object size, a plausibility test and a reliable suppression of foreign or interference markers can be achieved. Such a marker searching device is marked by a selective analysis of specific characteristics of a marker detected. On the basis of the plausibility test, a rapid, certain and robust location of markers is possible.
    Type: Application
    Filed: January 17, 2003
    Publication date: September 11, 2003
    Inventors: Paul Benz, Markus Geser, Roland Graf, Bruno Pfiffner, Marcel Buerki, Marco Landert, Markus Hammerer, Jurg Hinderling, Gunther Hanns, Gerhard Bayer