Patents by Inventor HAROLD CLIFTON HEARNE, III

HAROLD CLIFTON HEARNE, III 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: 11159168
    Abstract: Non-destructive read out (NDRO) circuits are provided for use in reciprocal quantum logic (RQL) superconducting systems. Each NDRO circuit includes a “body” circuit that provides a single or multi-state sub-critical bias current to one or many independent “tail” circuitries. Each “tail” has minimal effect on the “body” thereby preventing any interference or destruction to the state of the “body” circuitry. The circuits reduce device count and thereby increase circuit density, simplify and reduce the cost of fabrication, and provide functionality not available in existing designs, such as the ability to write a state and read it in the same operation cycle. The NDRO circuits provide more compact unit cells useful in memory or logic arrays, demanding fewer resources with increased functionality. The circuits also provide compact cells for AND, AND-OR, A-NOT-B, inverter, multiplexer, and demultiplexer gates.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: October 26, 2021
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Anna Y. Herr, Quentin P. Herr, Ryan Edward Clarke, Harold Clifton Hearne, III, Alexander Louis Braun, Randall M. Burnett, Timothy Chi-Chao Lee
  • Publication number: 20210083676
    Abstract: Non-destructive read out (NDRO) circuits are provided for use in reciprocal quantum logic (RQL) superconducting systems. Each NDRO circuit includes a “body” circuit that provides a single or multi-state sub-critical bias current to one or many independent “tail” circuitries. Each “tail” has minimal effect on the “body” thereby preventing any interference or destruction to the state of the “body” circuitry. The circuits reduce device count and thereby increase circuit density, simplify and reduce the cost of fabrication, and provide functionality not available in existing designs, such as the ability to write a state and read it in the same operation cycle. The NDRO circuits provide more compact unit cells useful in memory or logic arrays, demanding fewer resources with increased functionality. The circuits also provide compact cells for AND, AND-OR, A-NOT-B, inverter, multiplexer, and demultiplexer gates.
    Type: Application
    Filed: November 10, 2020
    Publication date: March 18, 2021
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: ANNA Y. HERR, QUENTIN P. HERR, RYAN EDWARD CLARKE, HAROLD CLIFTON HEARNE, III, ALEXANDER LOUIS BRAUN, RANDALL M. BURNETT, TIMOTHY CHI-CHAO LEE
  • Patent number: 10868540
    Abstract: Non-destructive read out (NDRO) circuits are provided for use in reciprocal quantum logic (RQL) superconducting systems. Each NDRO circuit includes a “body” circuit that provides a single or multi-state sub-critical bias current to one or many independent “tail” circuitries. Each “tail” has minimal effect on the “body” thereby preventing any interference or destruction to the state of the “body” circuitry. The circuits reduce device count and thereby increase circuit density, simplify and reduce the cost of fabrication, and provide functionality not available in existing designs, such as the ability to write a state and read it in the same operation cycle. The NDRO circuits provide more compact unit cells useful in memory or logic arrays, demanding fewer resources with increased functionality. The circuits also provide compact cells for AND, AND-OR, A-NOT-B, inverter, multiplexer, and demultiplexer gates.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: December 15, 2020
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Anna Y. Herr, Quentin P. Herr, Ryan Edward Clarke, Harold Clifton Hearne, III, Alexander Louis Braun, Randall M. Burnett, Timothy Chi-Chao Lee
  • Publication number: 20200106444
    Abstract: Non-destructive read out (NDRO) circuits are provided for use in reciprocal quantum logic (RQL) superconducting systems. Each NDRO circuit includes a “body” circuit that provides a single or multi-state sub-critical bias current to one or many independent “tail” circuitries. Each “tail” has minimal effect on the “body” thereby preventing any interference or destruction to the state of the “body” circuitry. The circuits reduce device count and thereby increase circuit density, simplify and reduce the cost of fabrication, and provide functionality not available in existing designs, such as the ability to write a state and read it in the same operation cycle. The NDRO circuits provide more compact unit cells useful in memory or logic arrays, demanding fewer resources with increased functionality. The circuits also provide compact cells for AND, AND-OR, A-NOT-B, inverter, multiplexer, and demultiplexer gates.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 2, 2020
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: ANNA Y. HERR, QUENTIN P. HERR, RYAN EDWARD CLARKE, HAROLD CLIFTON HEARNE, III, ALEXANDER LOUIS BRAUN, RANDALL M. BURNETT, TIMOTHY CHI-CHAO LEE
  • Publication number: 20200044656
    Abstract: Non-destructive read out (NDRO) circuits are provided for use in reciprocal quantum logic (RQL) superconducting systems. Each NDRO circuit includes a “body” circuit that provides a single or multi-state sub-critical bias current to one or many independent “tail” circuitries. Each “tail” has minimal effect on the “body” thereby preventing any interference or destruction to the state of the “body” circuitry. The circuits reduce device count and thereby increase circuit density, simplify and reduce the cost of fabrication, and provide functionality not available in existing designs, such as the ability to write a state and read it in the same operation cycle. The NDRO circuits provide more compact unit cells useful in memory or logic arrays, demanding fewer resources with increased functionality. The circuits also provide compact cells for AND, AND-OR, A-NOT-B, inverter, multiplexer, and demultiplexer gates.
    Type: Application
    Filed: July 31, 2018
    Publication date: February 6, 2020
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: ANNA Y. HERR, QUENTIN P. HERR, RYAN EDWARD CLARKE, HAROLD CLIFTON HEARNE, III, ALEXANDER LOUIS BRAUN, RANDALL M. BURNETT, TIMOTHY CHI-CHAO LEE
  • Patent number: 10554207
    Abstract: Non-destructive read out (NDRO) circuits are provided for use in reciprocal quantum logic (RQL) superconducting systems. Each NDRO circuit includes a “body” circuit that provides a single or multi-state sub-critical bias current to one or many independent “tail” circuitries. Each “tail” has minimal effect on the “body” thereby preventing any interference or destruction to the state of the “body” circuitry. The circuits reduce device count and thereby increase circuit density, simplify and reduce the cost of fabrication, and provide functionality not available in existing designs, such as the ability to write a state and read it in the same operation cycle. The NDRO circuits provide more compact unit cells useful in memory or logic arrays, demanding fewer resources with increased functionality. The circuits also provide compact cells for AND, AND-OR, A-NOT-B, inverter, multiplexer, and demultiplexer gates.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: February 4, 2020
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Anna Y. Herr, Quentin P. Herr, Ryan Edward Clarke, Harold Clifton Hearne, III, Alexander Louis Braun, Randall M. Burnett, Timothy Chi-Chao Lee
  • Patent number: 10186742
    Abstract: One embodiment of the invention includes a reconfigurable circuit comprising a phase-change material switch. The phase-change material switch includes an actuation portion configured to receive a control signal having one of a first state and a second state and to emit a first heat profile in response to the first state of the control signal and a second heat profile in response to the second state of the control signal. The phase-change material switch also includes a switch portion comprising a phase-change material in proximity with the actuation portion. The switch portion can be selectable between a conducting state in response to the first heat profile to conduct an input signal from an input to an output of the phase-change material switch and a blocking state in response to the second heat profile to substantially block the input signal from the input to the output.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 22, 2019
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Marc Eisenzweig Sherwin, Robert S. Howell, Pavel Borodulin, Harold Clifton Hearne, III, Nabil Abdel-Meguid El-Hinnawy, Robert Miles Young
  • Publication number: 20140266300
    Abstract: One embodiment of the invention includes a reconfigurable circuit comprising a phase-change material switch. The phase-change material switch includes an actuation portion configured to receive a control signal having one of a first state and a second state and to emit a first heat profile in response to the first state of the control signal and a second heat profile in response to the second state of the control signal. The phase-change material switch also includes a switch portion comprising a phase-change material in proximity with the actuation portion. The switch portion can be selectable between a conducting state in response to the first heat profile to conduct an input signal from an input to an output of the phase-change material switch and a blocking state in response to the second heat profile to substantially block the input signal from the input to the output.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: MARC EISENZWEIG SHERWIN, ROBERT S. HOWELL, PAVEL BORODULIN, HAROLD CLIFTON HEARNE, III, NABIL ABDEL-MEGUID EL-HINNAWY, ROBERT MILES YOUNG