Patents by Inventor J. Paul A. van der Wagt

J. Paul A. van der Wagt 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).

  • High-speed comparator utilizing resonant tunneling diodes and associated method
    Patent number: 6456214
    Abstract: A high-speed comparator and an associated method are disclosed. The comparator utilizes input circuitry to receive the input signal and utilizes resonant tunneling diode (RTD) circuitry to provide a high or low level determination. The RTD circuitry may be made weak compared to the input circuitry to eliminate hysteresis, and the comparators may be cascaded together to provide a positive-gain. In addition, clocked switches may be added to the cascaded comparator circuitry to create a clocked quantizer for analog to digital conversion. If desired, the RTD circuitry may include two RTDs connected to the output signal, and the input circuitry may include a transistor connected as a source-follower and transistor connected as a current sink.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: September 24, 2002
    Assignee: Raytheon Company
    Inventor: J. Paul A. van der Wagt