Patents Assigned to Alan G. Chen
  • Multilayer optical memory with means for recording and reading information
    Patent number: 5488597
    Abstract: A multilayer optical memory has interleaved optical recording media layers and control layers. In a transmissive system, the recording media layers are sensitive to the polarization (linear or circular) of a light beam. The control layers are polarization modulators. In a reflective system, the control layers are notch filters.
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: January 30, 1996
    Assignee: Alan G. Chen
    Inventors: Alan G. Chen, David J. Brady