Patents by Inventor Dana L. Eckstein

Dana L. Eckstein 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).

  • Variable impedance circuit
    Patent number: 4357544
    Abstract: The variable impedance circuit comprising the invention provides a circuit having an impedance which varies in response to an input signal. The invention utilizes a control circuit which samples the load current and compares it to the demand signal to generate a control signal. The control signal is coupled to a load driver circuit to cause the required current to flow through this circuit. The load driver circuit and one or more substantially identical load circuits are series coupled to form a variable impedance circuit having the desired voltage and current capability.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: November 2, 1982
    Assignee: Westinghouse Electric Corp.
    Inventors: Klaus D. May, Dana L. Eckstein