Patents by Inventor Otto Rofa

Otto Rofa 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).

  • Circuit arrangement for record players performing the setting back of the disc into a pre-determined start position
    Patent number: 4160197
    Abstract: A circuit arrangement for record players is disclosed for presetting of the disc. The disc is set back by a specific rotation angle before starting the turntable so that it will accelerate to the proper angular velocity at the proper time for synchronizing program material.
    Type: Grant
    Filed: January 24, 1978
    Date of Patent: July 3, 1979
    Assignee: Mechanikai Laboratorium Hiradastechnikai Kiserleti Vallalat
    Inventors: Gyorgy Rothman, Gyorgy Babos, Maria Gyarmati nee Hardik, Arpad Hegedus, Otto Rofa