Patents by Inventor Gunther Hahlganss

Gunther Hahlganss 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).

  • Patent number: 5381080
    Abstract: A control device, particularly a rotary controller for manual entry of information into an electronic device, has a setting member the position of which can be changed under the effect of an actuating force. The setting member is connected with a generator for producing electric signals which characterize the position of the setting member. A drive element is connected with the setting member and, under the control of the electric signals, exerts a force on the setting member which acts in the same direction as or in the direction opposite to the actuating force, depending on the position of the setting member for haptic acknowledgement of the operation of the setting member.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: January 10, 1995
    Assignee: VDO Adolf Schindling AG
    Inventors: Klaus Schnell, Gunther Hahlganss
  • Patent number: 4631678
    Abstract: The invention relates to an information input for a navigation device for highway vehicles in connection with which map markings which represent optically readable information and can be read by a reading device and fed to a data processing unit of the navigation device can be associated with a map, in particular a road map. A mark 6 can be associated with a starting or target point on the map and optically readable location markings 2 and 3 can be read by the reading device in the associated position of the mark 6 to the starting or target point.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: December 23, 1986
    Assignee: VDO Adolf Schindling AG
    Inventors: Helmut Angermuller, Gunther Hahlganss