Patents Assigned to Jeng-Jye Shau
  • Optical location tracking devices
    Patent number: 5393970
    Abstract: A practical location tracking device provides cost-efficient methods for inputting three-dimensional location information. This device comprises light sources and light receiving elements. Each light receiving element comprises two or more closely spaced planar light detectors with their light receiving surfaces facing different spatial directions. Three dimensional location is determined by comparing the relative light intensities detected by those light detectors.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: February 28, 1995
    Assignee: Jeng-Jye Shau
    Inventors: Jeng-Ge Shau, Jeng-Jye Shau