Patents by Inventor Ying S. Yee

Ying S. Yee 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).

  • Head tracking apparatus
    Patent number: 5373857
    Abstract: A low cost head tracker for a virtual reality head set for determining the orientation of the head set relative to the earth's magnetic field includes a magnetic sensor responsive to the earth's magnetic field, and disposed on the head set and arranged with respect to a vertical axis of rotation of the head set to produce a displacement signal relative to the angular displacement of the head set with respect to a calibration orientation relative to the earth's magnetic field, and a signal processor connected to the magnetic sensor, and responsive to the electrical displacement signal for producing an output signal proportional to the orientation of the head set relative to the calibration orientation.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: December 20, 1994
    Assignee: Forte Technologies, Inc.
    Inventors: Paul J. Travers, Ying S. Yee