Patents by Inventor Adam R. Duncan

Adam R. Duncan 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).

  • Patent number: 9595519
    Abstract: Systems and methods for controlling current or mitigating electromagnetic or radiation interference effects using a combination of a metal-oxide semiconductor field effect transistor (MOSFET) and junction field effect transistor (JFET) disposed perpendicularly and within a certain orientation to each other. An embodiment of the invention can be formed and operable for modulating current and/or voltage response or mitigating electromagnetic or radiation interference effects on the MOSFET by controlling a semi-conductive channel region (SCR) using an additional gate, e.g., JFET, disposed perpendicularly with respect to the MOSFET configured to generate an electromagnetic field into the MOSFET's semi-SCR. A control system for controlling operation is also provided to include automated systems including sensors as well as manually operated systems. Automated systems can include radiation sensors as well as other control systems such as radio frequency transmitter or receiver systems.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: March 14, 2017
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Jeffrey L. Titus, Mark Savage, Patrick L. Cole, Adam R. Duncan
  • Patent number: 9590611
    Abstract: Systems and methods for controlling current or mitigating electromagnetic or radiation interference effects using structures configured to cooperatively control a common semi-conductive channel region (SCR). One embodiment includes providing a metal oxide semiconductor field effect transistor (MOSFET) section formed with an exemplary SCR and two junction field effect transistor (JFET) gates on opposing sides of the MOSFET's SCR such that operation of the JFET modulates or controls current through the MOSFET's. With two JFET gate terminals to modulate various embodiments' signal(s), an improved mixer, demodulator, and gain control element in, e.g., analog circuits can be realized. Additionally, a direct current (DC)-biased terminal of one embodiment decreases cross-talk with other devices. A lens structure can also be incorporated into MOSFET structures to further adjust operation of the MOSFET.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: March 7, 2017
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Patrick L. Cole, Adam R. Duncan
  • Publication number: 20160276339
    Abstract: Systems and methods for controlling current or mitigating electromagnetic or radiation interference effects using a combination of a metal-oxide semiconductor field effect transistor (MOSFET) and junction field effect transistor (JFET) disposed perpendicularly and within a certain orientation to each other. An embodiment of the invention can be formed and operable for modulating current and/or voltage response or mitigating electromagnetic or radiation interference effects on the MOSFET by controlling a semi-conductive channel region (SCR) using an additional gate, e.g., JFET, disposed perpendicularly with respect to the MOSFET configured to generate an electromagnetic field into the MOSFET's semi-SCR. A control system for controlling operation is also provided to include automated systems including sensors as well as manually operated systems. Automated systems can include radiation sensors as well as other control systems such as radio frequency transmitter or receiver systems.
    Type: Application
    Filed: March 25, 2015
    Publication date: September 22, 2016
    Inventors: Jeffrey L. Titus, Mark Savage, Patrick L. Cole, Adam R. Duncan
  • Publication number: 20150295571
    Abstract: Systems and methods for controlling current or mitigating electromagnetic or radiation interference effects using structures configured to cooperatively control a common semi-conductive channel region (SCR). One embodiment includes providing a metal oxide semiconductor field effect transistor (MOSFET) section formed with an exemplary SCR and two junction field effect transistor (JFET) gates on opposing sides of the MOSFET's SCR such that operation of the JFET modulates or controls current through the MOSFET's. With two JFET gate terminals to modulate various embodiments' signal(s), an improved mixer, demodulator, and gain control element in, e.g., analog circuits can be realized. Additionally, a direct current (DC)-biased terminal of one embodiment decreases cross-talk with other devices. A lens structure can also be incorporated into MOSFET structures to further adjust operation of the MOSFET.
    Type: Application
    Filed: April 10, 2015
    Publication date: October 15, 2015
    Inventors: Patrick L. Cole, Adam R. Duncan