Patents by Inventor Jacque A. Tazartes

Jacque A. Tazartes 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).

  • Ultra low noise optical receiver
    Patent number: 5521555
    Abstract: An amplifier topology for receiving signals output from a fiber optic rotation sensor and producing voltages that may be processed to determine the rotation rate includes a photodiode for receiving an optical signal and producing a corresponding electrical photodiode output signal. An ultra low noise and ultra low capacitance differential input stage is connected to receive the photodiode output signal. An operational amplifier having low noise and ultra-wide bandwidth is connected to the ultra low capacitance differential input stage to receive the output signal therefrom as a driving signal and to produce a low noise output signal. The differential input stage comprises a first amplifier circuit that includes a first transistor connected to the photodetector to act as a first buffer having low noise, low capacitance and unity gain.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: May 28, 1996
    Assignee: Litton Systems, Inc.
    Inventors: Daniel A. Tazartes, John E. Higbee, Jacque A. Tazartes, Juergen K. P. Flamm, John G. Mark