Patents by Inventor Donald Lynn Miller
Donald Lynn Miller 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).
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Patent number: 9761305Abstract: One embodiment describes a quantum memory system. The system includes an array controller that comprises a plurality of flux pumps configured to provide write currents in a write operation and read currents in a read operation with respect to a plurality of quantum memory cells, the array controller being configured to control timing associated with the write operation and the read operation in response to memory request signals based on application of the write currents and the read currents and based on recharging flux associated with the plurality of flux pumps.Type: GrantFiled: June 1, 2016Date of Patent: September 12, 2017Assignee: Northrop Grumman Systems CorporationInventors: William Robert Reohr, Steven Brian Shauck, Donald Lynn Miller, Jeremy William Horner, Nathan Trent Josephsen
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Publication number: 20170229167Abstract: One embodiment describes a quantum memory system. The system includes an array controller that comprises a plurality of flux pumps configured to provide write currents in a write operation and read currents in a read operation with respect to a plurality of quantum memory cells, the array controller being configured to control timing associated with the write operation and the read operation in response to memory request signals based on application of the write currents and the read currents and based on recharging flux associated with the plurality of flux pumps.Type: ApplicationFiled: June 1, 2016Publication date: August 10, 2017Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: WILLIAM ROBERT REOHR, STEVEN BRIAN SHAUCK, DONALD LYNN MILLER, JEREMY WILLIAM HORNER, NATHAN TRENT JOSEPHSEN
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Patent number: 9384827Abstract: One embodiment describes a quantum memory system. The system includes a plurality of quantum memory cells arranged in an array of rows and columns. Each of the plurality of quantum memory cells can be configured to store a binary logic state in response to write currents in a write operation and configured to provide an indication of the binary logic state in response to read currents in a read operation. The system also includes an array controller comprising a plurality of flux pumps configured to provide the write currents and the read currents with respect to the rows and columns. The array controller can be configured to control timing associated with the write operation and the read operation in response to memory request signals based on application of the write currents and the read currents and based on recharging flux associated with the plurality of flux pumps.Type: GrantFiled: March 5, 2015Date of Patent: July 5, 2016Assignee: Northrop Grumman Systems CorporationInventors: William Robert Reohr, Steven Brian Shauck, Donald Lynn Miller, Jeremy William Horner, Nathan Trent Josephsen
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Patent number: 8138784Abstract: In one embodiment, the disclosure relates to a method and apparatus for controlling the energy state of a qubit by bringing the qubit into and out of resonance by coupling the qubit to a flux quantum logic gate. The qubit can be in resonance with a pump signal, with another qubit or with some quantum logic gate. In another embodiment, the disclosure relates to a method for controlling a qubit with RSFQ logic or through the interface between RSFQ and the qubit.Type: GrantFiled: February 7, 2011Date of Patent: March 20, 2012Assignee: Northrop Grumman Systems CorporationInventors: John Xavier Przybysz, James E. Baumgardner, Aaron A. Pesetski, Donald Lynn Miller, Quentin P. Herr
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Patent number: 7969178Abstract: In one embodiment, the disclosure relates to a method and apparatus for controlling the energy state of a qubit by bringing the qubit into and out of resonance by coupling the qubit to a flux quantum logic gate. The qubit can be in resonance with a pump signal, with another qubit or with some quantum logic gate. In another embodiment, the disclosure relates to a method for controlling a qubit with RSFQ logic or through the interface between RSFQ and the qubit.Type: GrantFiled: May 29, 2008Date of Patent: June 28, 2011Assignee: Northrop Grumman Systems CorporationInventors: John Xavier Przybysz, James E. Baumgardner, Aaron A. Pesetski, Donald Lynn Miller, Ouentin P. Herr
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Publication number: 20110133770Abstract: In one embodiment, the disclosure relates to a method and apparatus for controlling the energy state of a qubit by bringing the qubit into and out of resonance by coupling the qubit to a flux quantum logic gate. The qubit can be in resonance with a pump signal, with another qubit or with some quantum logic gate. In another embodiment, the disclosure relates to a method for controlling a qubit with RSFQ logic or through the interface between RSFQ and the qubit.Type: ApplicationFiled: February 7, 2011Publication date: June 9, 2011Inventors: John Xavier PRZYBYSZ, James E. Baumgardner, Aaron A. Pesetski, Donald Lynn Miller, Quentin P. Herr
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Patent number: 7724083Abstract: The disclosure generally relates to a method and apparatus for providing high-speed, low signal power amplification. In an exemplary embodiment, the disclosure relates to a method for providing a wideband amplification of a signal by forming a first transmission line in parallel with a second transmission line, each of the first transmission line and the second transmission line having a plurality of superconducting transmission elements, each transmission line having a transmission line delay; interposing a plurality of amplification stages between the first transmission line and the second transmission line, each amplification stage having an resonant circuit with a resonant circuit delay; and substantially matching the resonant circuit delay for at least one of the plurality of amplification stages with the transmission line delay of at least one of the superconducting transmission lines.Type: GrantFiled: August 5, 2008Date of Patent: May 25, 2010Assignee: Northrop Grumman Systems CorporationInventors: Quentin P. Herring, Donald Lynn Miller, John Xavier Przybysz
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Publication number: 20100033252Abstract: The disclosure generally relates to a method and apparatus for providing high-speed, low signal power amplification. In an exemplary embodiment, the disclosure relates to a method for providing a wideband amplification of a signal by forming a first transmission line in parallel with a second transmission line, each of the first transmission line and the second transmission line having a plurality of superconducting transmission elements, each transmission line having a transmission line delay; interposing a plurality of amplification stages between the first transmission line and the second transmission line, each amplification stage having an resonant circuit with a resonant circuit delay; and substantially matching the resonant circuit delay for at least one of the plurality of amplification stages with the transmission line delay of at least one of the superconducting transmission lines.Type: ApplicationFiled: August 5, 2008Publication date: February 11, 2010Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: Quentin P. Herr, Donald Lynn Miller, John Xavier Przybysz
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Publication number: 20090322374Abstract: In one embodiment, the disclosure relates to a method and apparatus for controlling the energy state of a qubit by bringing the qubit into and out of resonance by coupling the qubit to a flux quantum logic gate. The qubit can be in resonance with a pump signal, with another qubit or with some quantum logic gate. In another embodiment, the disclosure relates to a method for controlling a qubit with RSFQ logic or through the interface between RSFQ and the qubit.Type: ApplicationFiled: May 29, 2008Publication date: December 31, 2009Inventors: John Xavier Przybysz, James E. Baumgardner, Aaron A. Pesetski, Donald Lynn Miller, Ouentin P. Herr
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Patent number: 5854604Abstract: A method and apparatus for generating a low phase noise RF signal where the output from a low phase-noise stabilized local oscillator operating at relatively high frequencies in the GHz range is combined in a power combiner with a digital data stream generated by a digital waveform generator and which is representative of one or more analog signals in a predetermined frequency spectrum of relatively lower RF frequencies in the MHz range. The combined signal is applied to a Josephson junction array whose output consists of a data stream including pulses of precise constant amplitude and which is then fed to a bandpass filter circuit having a predetermined bandpass. The filter extracts the lower frequency analog signal but now consisting of a signal having low phase-noise.Type: GrantFiled: May 12, 1997Date of Patent: December 29, 1998Assignee: Northrop Grumman CorporationInventors: John Xavier Przybysz, Stephen Pusey Caldwell, Donald Lynn Miller, Andrew Hostetler Miklich
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Patent number: 5798722Abstract: Frequency output capability of a Josephson junction digital to analog converter is increased by applying a digital data stream to a Josephson junction array including a low impedance tap in the form of a metal line of microstrip running across the top of and insulated from the array. The input end of the array and one end of the tap are commonly connected to a digital data stream source. A differential output signal is coupled from the Josephson junction array to a bandpass filter which extracts a predetermined RF frequency by means of an impedance matching transformer including a primary winding having one end coupled to the output end of the array and whose other end is coupled to the input end of the array through the low impedance tap.Type: GrantFiled: February 13, 1997Date of Patent: August 25, 1998Assignee: Northrop Grumman CorporationInventors: John Xavier Przybysz, Donald Lynn Miller