Patents by Inventor Eli Wiener-Avnear

Eli Wiener-Avnear 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).

  • Erasable optical memory and method
    Patent number: 5759447
    Abstract: An erasable optical memory is provided by an erasable bistable photoactive chromophore that is covalently bonded to a polymer microsphere. An azobenzene chromophore that is bonded to the microsphere by an oxygen or NH replacement of chlorine, or a CH double bond to N, is preferred. An array of such microspheres is encoded by applying radiation at a resonant wavelength to induce a conformational change in the chromophores for selected microspheres, and the encoded pattern is read out by detecting changes in either absorption or fluorescence.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: June 2, 1998
    Assignee: Hughes Electronics Corporation
    Inventors: Uzi Efron, Chiung-Sheng Wu, Larry Raymond Dalton, Eli Wiener-Avnear