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| Number | Title | Issue Date |
| 8169231 | Systems, methods, and apparatus for qubit state readout A superconducting readout system includes a computation qubit; a measurement device to measure a state of the computation qubit; and a latch qubit that mediates communicative coupling between the computation qubit and the measurement device. The latch qubit includes... | 05/01/2012 |
| 8138784 | Method and apparatus for controlling qubits with single flux quantum logic 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... | 03/20/2012 |
| 8008942 | Analog processor comprising quantum devices Analog processors for solving various computational problems are provided. Such analog processors comprise a plurality of quantum devices, arranged in a lattice, together with a plurality of coupling devices. The analog processors further comprise bias control syste... | 08/30/2011 |
| 7977964 | Single flux quantum circuits Superconducting single flux quantum circuits are disclosed herein, each having at least one Josephson junction which will flip when the current through it exceeds a critical current. Bias current for the Josephson junction is provided by a biasing transformer instea... | 07/12/2011 |
| 7868645 | Method and apparatus for ballistic single flux quantum logic In one embodiment, the disclosure relates to a single flux quantum (SFQ) signal transmission line powered by an AC power source. The AC power source supplies power to a transformer having a primary winding and a secondary winding. The primary winding receives the AC... | 01/11/2011 |
| 7852106 | Method and apparatus for ballistic single flux quantum logic In one embodiment, the disclosure relates to a single flux quantum (SFQ) signal transmission line powered by an AC power source. The AC power source supplies power to a transformer having a primary winding and a secondary winding. The primary winding receives the AC... | 12/14/2010 |
| 7816940 | Ultra fast differential transimpedance digital amplifier for superconducting circuits Supercooled electronics often use Rapid Single Flux Quantum (RSFQ) digital circuits. The output voltages from RSFQ devices are too low to be directly interfaced with semiconductor electronics, even if the semiconductor electronics are cooled. Techniques for directly... | 10/19/2010 |
| 7782077 | Method and apparatus for ballistic single flux quantum logic In one embodiment, the disclosure relates to a single flux quantum (SFQ) signal transmission line powered by an AC power source. The AC power source supplies power to a transformer having a primary winding and a secondary winding. The primary winding receives the AC... | 08/24/2010 |
| 7772871 | Method and apparatus for high density superconductor circuit The disclosure relates to a method for providing a logic circuit element. The method includes arranging a series of Josephson junctions between a first Josephson junction and a second Josephson junction, the first Josephson junction having a first critical current (... | 08/10/2010 |
| 7570075 | Ultra fast differential transimpedance digital amplifier for superconducting circuits Supercooled electronics often use Rapid Single Flux Quantum (RSFQ) digital circuits. The output voltages from RSFQ devices are too low to be directly interfaced with semiconductor electronics, even if the semiconductor electronics are cooled. Techniques for directly... | 08/04/2009 |
| 7378865 | Superconducting circuit for generating pulse signal A superconducting circuit includes a first transformer to produce a first alternating-current output at a secondary-side inductor, a second transformer to produce a second alternating-current output at a secondary-side inductor, a first pulse generating circuit to p... | 05/27/2008 |
| 7335968 | High permeability composite films to reduce noise in high speed interconnects A transmission line circuit provides a structure for improved transmission line operation on integrated circuits. The transmission line circuit includes a first layer of electrically conductive material on a substrate. A first layer of insulating material is formed ... | 02/26/2008 |
| 7327016 | High permeability composite films to reduce noise in high speed interconnects An electronic system is provided with a structure for improved transmission line operation on integrated circuits. The structure for transmission line operation includes a first layer of electrically conductive material on a substrate. A first layer of insulating ma... | 02/05/2008 |
| 7326199 | System and method for flexible architecture for dermatologic treatments utilizing multiple light sources A system and method for providing light treatments to a patients skin, which could include both dermal and epidermal regions. The system and method utilize multiple hand pieces where each hand piece can deliver light from a different light source. The system and met... | 02/05/2008 |
| 7291140 | System and method for low average power dermatologic light treatment device The invention comprises a system and method for providing for pulses or relatively low energy light to an area of skin being treated. Typically, these low energy pulses will include shorter wavelength light, and will provided for multiple pulses of light for the are... | 11/06/2007 |
| 7253701 | Multiplexed amplifier Multiple sensor signals are used to modulate an equal number of frequency-spaced carrier signals in a directional parametric upconverting amplifier. Basically, the carrier signals are separated in a cascaded or parallel configuration of narrow frequency passbands, w... | 08/07/2007 |
| 7235457 | High permeability layered films to reduce noise in high speed interconnects This invention provides a structure and method for improved transmission line operation on integrated circuits. One method of the invention includes forming transmission lines in an integrated circuit. The method includes forming a first layer of electrically conduc... | 06/26/2007 |
| 7170960 | Instantaneous clock recovery circuit A clock recovery circuit (10) for a superconductor system that enables the phase of a system clock to be instantaneously reset without any pulse interaction. The clock recovery circuit (10) includes a Josephson transmission line oscillator loop (14 | 01/30/2007 |
| 7129870 | Superconducting latch driver circuit generating sufficient output voltage and pulse-width A circuit includes a latch circuit including a Josephson junction and configured to perform a latch operation based on a hysteresis characteristic in response to a single flux quantum, a load circuit including load inductance and load resistance and coupled to an ou... | 10/31/2006 |
| 7101770 | Capacitive techniques to reduce noise in high speed interconnections Improved methods and structures are provided using capacitive techniques to reduce noise in high speed interconnections, such as in CMOS integrated circuits. The present invention offers an improved signal to noise ration. The present invention provides for the fabr... | 09/05/2006 |
| 7041094 | Tissue treatment device and method A hair removal device (22) includes a cooling surface (34) which is used to contact the skin (6) prior to exposure to hair tissue-damaging laser light (74) passing from a radiation source (36) through a recessed window (46).... | 05/09/2006 |
| 6917216 | Superconductor output amplifier A single flux quantum (SFQ) pulse is generated (502) by injecting a superconductor output signal as a first signal at a “start” input (108) coupled to a superconductor delay element (104). The SFQ pulse is reflected (504) back and for... | 07/12/2005 |
| 6906402 | High permeability thin films and patterned thin films to reduce noise in high speed interconnections This invention provides a structure and method for improved transmission line operation on integrated circuits. One method of the invention includes forming transmission lines in an integrated circuit. The method includes forming a first layer of electrically conduc... | 06/14/2005 |
| 6903444 | High permeability thin films and patterned thin films to reduce noise in high speed interconnections This invention provides a structure and method for improved transmission line operation on integrated circuits. One method of the invention includes forming transmission lines in an integrated circuit. The method includes forming a first layer of electrically conduc... | 06/07/2005 |
| 6903003 | High permeability composite films to reduce noise in high speed interconnects This invention provides a structure and method for improved transmission line operation on integrated circuits. One method of the invention includes forming transmission lines in a memory device. The method includes forming a first layer of electrically conductive m... | 06/07/2005 |
| 6784451 | Multi-junction phase qubit In one embodiment, a two-junction phase qubit includes a superconducting loop and two Josephson junctions separated by a mesoscopic island on one side and a bulk loop on another side. The material forming the superconducting loop is a superconducting material with a... | 08/31/2004 |
| 6724216 | Rapid single-flux-quantum logic circuit and rapid single-flux-quantum output conversion circuit A rapid single-flux-quantum RSFQ logic circuit includes a first circuit portion having a first end grounded and having in-series connected first and second Josephson junctions. A second circuit portion has a first end grounded and has in-series connected third and f... | 04/20/2004 |
| 6486694 | Universal delay-insensitive logic cell The invention provides a universal, delay-insensitive RSFQ logic cell comprising two input circuits and two clock circuits, each containing a plurality of Josephson elements. The two input circuits generate and sustain persistent currents in response to i... | 11/26/2002 |
| 5233242 | Superconducting push-pull flux quantum gate array cells Push-pull flux quantum gate array cells synchronously process a pair of polarized data signals. These polarized data signals can be derived from dual polarity data signals by separating the input signals into positive polarity data signals and negative po... | 08/03/1993 |
| 5233244 | Josephson logic gate having a plurality of input ports and a Josephson logic circuit that uses such a Josephson logic gate A multiple-input Josephson AND gate having a plurality of input ports comprises a plurality of Josephson logic gate elements of a number corresponding to the number of said input ports and cascaded with each other from a first stage to a final stage, each... | 08/03/1993 |
| 5233243 | Superconducting push-pull flux quantum logic circuits Push-pull flux quantum superconducting digital logic circuits are provided with a circuit branch having a pair of Josephson junctions electrically connected in series with each other. This circuit branch is connected between positive and negative bias vol... | 08/03/1993 |
| 5170080 | Superconducting push-pull flux quantum digital logic circuits Superconducting digital logic circuits constructed in accordance with this invention include a circuit branch having first and second Josephson junctions electrically connected in series with each other, with a junction point between the first and second ... | 12/08/1992 |
| 5164618 | Superconducting gate array cells Superconducting timed gate array cells for use in single-rail logic circuits are provided by adding inputs to modified variable threshold logic (MVTL) timed inverter circuits. Data signals which are inphase with a first phase of a power source are coupled... | 11/17/1992 |
| 5124583 | DC-powered Josephson integrated circuit A DC powered integrated circuit includes a plurality of magnetic flux coupling type Josephson elements. First and second Josephson elements are connected in series to form a first element series circuit of Josephson elements. Third and fourth Josephson el... | 06/23/1992 |
| 5051627 | Superconducting nonhysteretic logic design A family of logic circuits using nonhysteretic superconducting quantum interference devices (SQUIDs) connected together to perform various functions using a common operating principle. Each circuit has an output line, first and second power supply lines h... | 09/24/1991 |
| 4749888 | Josephson transmission line device A Josephson transmission line device comprising a Josephson transmission line consisting of a pair of superconducting layers and a junction layer disposed between the superconducting layers to constitute a Josephson junction; a fluxon stopping position co... | 06/07/1988 |
| 4713562 | Josephson-junction logic circuit A Josephson-junction logic circuit comprises at least one Josephson-junction logic gate which has a variable threshold-type superconductive quantum interference element. The Josephson-junction logic gate comprises a superconductive inductance loop, and at... | 12/15/1987 |
| 4672244 | Josephson logic integrated circuit A Josephson logic integrated circuit packaged on a single substrate, wherein a portion for delivering an output out of the integrated circuit is constructed of an A.C.-driven Josephson logic circuit, and a portion for driving the internal part of the inte... | 06/09/1987 |
| 4634899 | Current injection logic device with Josephson diode network A current injection logic device with Josephson diode network comprises three parallel branches, each having three Josephson diodes in series, the first and last diodes of each of the branches being respectively connected to a first and a second main elec... | 01/06/1987 |
| 4633439 | Superconducting read-only memories or programable logic arrays having the same An A.C. powered type logic array of very high speed operations which employs Josephson devices and which can program any desired logic. The logic array comprises a first logic array which delivers AND logic signals of desired ones of input signals, and a ... | 12/30/1986 |
