Patents by Inventor Alexander Sonnenschein

Alexander Sonnenschein 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).

  • Electro-optic system
    Patent number: 5199086
    Abstract: An electro-optic system for mixing and/or transmitting electrical signals using an optical carrier is described in which the electrical signals are applied to an electro-optic intensity modulator with a nonlinear transfer function, preferably of the Mach-Zehnder interferometric type biased at the transmission null point. The modulator output optical signal is transmitted to a receiver where it is detected and voltage products of the applied electrical signals are recovered.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: March 30, 1993
    Assignee: Massachusetts Institute of Technology
    Inventors: Leonard M. Johnson, Warren K. Hutchinson, Alexander Sonnenschein