Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 8049943 | Quantum computing method and quantum computer A quantum bit computation method includes operating a two-quantum-bit gate on quantum bits of a first physical system and a second physical system, second energy states of second physical systems except for the first physical system and the second physical system do... | 11/01/2011 |
| 7791780 | Quantum coherent systems and operations Nonlinear elements can efficiently implement quantum information processing systems such as controlled phase shifters, non-absorbing detectors including parity detectors, quantum subspace projections, non-absorbing Bell state analyzers, non-absorbing encoders/entang... | 09/07/2010 |
| 7719736 | Components for optical qubits in the radio frequency basis In the field of optical quantum information processing, manipulation of single photon qubits in frequency modes employs a frequency beamsplitter employs an asymmetric two-path interferometer, reversible down to the quantum limit. A first partially transmitting mirro... | 05/18/2010 |
| 7492494 | Quantum computer and quantum computing method A quantum computer includes: N (where N is an integer of at least 2) physical systems having five states |0>, |1>, |2>, |3> and |4> in which transitions between three lower states |0>, |1> and |2> and two upper states |3> and |4> are optically allowed; and an optica... | 02/17/2009 |
| 7426444 | Methods for determining relative phase differences in entangled quantum states Various embodiments of the present invention are directed to methods for determining a phase shift acquired by an entangled N-qubit system represented by a NOON state. In one embodiment, a probe electromagnetic field is coupled with each qubit system. The phase shif... | 09/16/2008 |
| 7423793 | Method and apparatus for decoding digital signal A method for decoding a digital signal includes receiving a multiple-bit digital signal that includes information to be transmitted; arraying bit strings of the received multiple-bit digital signal to thereby generate a received signal image as a two-dimensional ima... | 09/09/2008 |
| 7421414 | Split machine learning systems Split machine learning systems can be used to generate an output for an input. When the input is received, a determination is made as to whether the input is within a first, second, or third range of values. If the input is within the first range, the output is gene... | 09/02/2008 |
| 7411807 | System and method for optically interconnecting memory devices A memory device includes a semiconductor substrate in which memory circuitry has been fabricated. An address converter and a control signal converter are coupled to an address decoder and control logic, respectively. The address and control converters are operable t... | 08/12/2008 |
| 7369600 | Burst communications apparatus and method using tapped delay lines A communications apparatus and method use tapped delay lines as multiplexers and demultiplexers. In one embodiment, a receiver (100) uses a tapped delay line (110) as a demultiplexer to acquire a burst communication at very high data rates in the range... | 05/06/2008 |
| 7359101 | Tests of quantum information Quantum testing can compare unknown photon states in a manner suitable for a validation check of a quantum digital signature, testing of the operation of a quantum gate, or detecting of entanglement. The effect of the QSC system can be used to entangle input photon ... | 04/15/2008 |
| 7359928 | Hardware quantum gate A hardware quantum gate for running quantum algorithms in a very fast manner exploits the fact that a large number of multiplications required by an entanglement operation of the quantum algorithm provides a null result since only one component per row of the entang... | 04/15/2008 |
| 7355769 | Method and apparatus for single-photon source and quantum memory An optical switch and optical storage loop are used as the basis of a single-photon source and a quantum memory for photonic qubits. To operate as a single-photon source, the techniques include a source of a pair of photons, such as a parametric down-conversion crys... | 04/08/2008 |
| 7356263 | Signal processor for converting signal Provided is a signal processor for converting a signal that converts a return to zero (RZ) signal into a non-return to zero (NRZ) signal, in which two 2R (re-amplifying, re-shaping) regenerators are connected in parallel between an input waveguide and an output wave... | 04/08/2008 |
| 7340183 | Optical communications systems, devices, and methods A method of transmitting an optical communications signal, comprising receiving a first signal, encoding the signal with a differential or duobinary encoding scheme, encoding the signal with an oscillating signal component, and sub-carrier modulating the signal onto... | 03/04/2008 |
| 7334008 | Quantum gate for carrying out a grover's quantum algorithm and a relative method of performing the interference operation of a grover's quantum algorithm A quantum gate for running a Grover's quantum algorithm using a binary function having a vector basis of n qubits is provided. The quantum gate includes a superposition subsystem, an entanglement subsystem and an interference subsystem. The interference subsystem pe... | 02/19/2008 |
| 7316964 | Active matrix substrate, a manufacturing method of the active matrix substrate A manufacturing method of a thin film apparatus, includes: a first step for forming a separation layer on a heat resistant substrate; a second step for forming a thin film device on the separation layer; a third step for providing a surface layer on the thin film de... | 01/08/2008 |
| 7310454 | Photonic bandgap modulator, amplifier, demux, and TDM devices An optical device includes at least two photonic bandgap crystal (PBG) stacks that are each comprised of alternating layers of high and low index materials. A defect region is formed in a cavity region between the at least two photonic bandgap crystal stacks so as t... | 12/18/2007 |
| 7289347 | System and method for optically interconnecting memory devices A memory device includes a semiconductor substrate in which memory circuitry has been fabricated. An address converter and a control signal converter are coupled to an address decoder and control logic, respectively. The address and control converters are operable t... | 10/30/2007 |
| 7266303 | Handling information in a noisy environment A method and system for handling information in a noisy environment in the form of at least one information carrying mode is disclosed. A plurality of encoded modes are generated by linear transformation of the information carrying mode, said encoded modes being pro... | 09/04/2007 |
| 7262430 | Organic photocurrent multiplication device Organic semiconductor layers (2, 4) are laminated sandwiching an insulator thin layer (3), and translucent electrodes (1, 5) are formed on the surfaces of the organic semiconductor layers (2, 4), respectively. While a voltage is applied s... | 08/28/2007 |
| 7248400 | Embodying equipment and method for an all-optical or logic gate by using single SOA Disclosed herein is an apparatus and method for implementing an all-optical OR logic gate. The apparatus includes an optical pulse generator, a Mode-Locked Fiber Laser (MLFL), a first optical splitter, a first optical delay line means, an optical control means, a fi... | 07/24/2007 |
| 7242599 | Self-analyzing memory word A content-addressable memory stores a plurality of words, each word with intrinsic capability: Global bus-1 selects a set of bits in each word. Global bus-2 selects a disjoint set of bits in each word. Circuits approximately adiabatic in each word, toggle bus-2 bits... | 07/10/2007 |
| 7218430 | Combinatorial optical processor A Combinatorial Optical Processor and method for the architecture of optical systems utilizes one or more optical modules, each module including a number of individually addressable optical elements. The optical elements are arranged and addressed in a combinatorial... | 05/15/2007 |
| 7218429 | Digital focus lens system A digital focus lens systems that can provide an optical system with a plurality of selectable focal powers is described. The system includes a number of switchable elements, each of which is capable of being switched between a first state and a second state, whereb... | 05/15/2007 |
| 7209211 | Active matrix type liquid crystal display apparatus A liquid crystal display apparatus having a liquid crystal panel including a pair of substrates, a plurality of electrodes formed on at least one of the pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, and a light source provi... | 04/24/2007 |
| 7203715 | Method and relative quantum gate for running a Grover's or a Deutsch-Jozsa's quantum algorithm A method of performing a Grover's or a Deutsch-Jozsa's quantum algorithm being input with a binary function defined on a space having a basis of vectors of n of qubits includes carrying out a superposition operation over input vectors for generating components of li... | 04/10/2007 |
| 7200024 | System and method for optically interconnecting memory devices A memory device includes a semiconductor substrate in which memory circuitry has been fabricated. An address converter and a control signal converter are coupled to an address decoder and control logic, respectively. The address and control converters are operable t... | 04/03/2007 |
| 7197526 | Method and apparatus for calculating the remainder of a modulo division A non-iterative technique for calculating the remainder of modulo division, which requires significantly fewer operations than the traditional iterative technique for the same calculation. The number of calculations required in the present invention is independent o... | 03/27/2007 |
| 7193769 | Two particle electophoretic systems, electronic displays including two particle electophoretic systems, and methods for producing the two particle electophoretic systems An electrophoretic display includes a transparent polymeric film including at least one cavity including a first particle species and a second particle species. Application of an electrical field causes the first particle species and the second particle species to s... | 03/20/2007 |
| 7194139 | Image compression A method of image compression, comprising: providing image-data encoding light; transforming said light from an image space to a transform space utilizing an optical component; and converting said transformed light into electrical signals, which electrical signals r... | 03/20/2007 |
| 7180645 | Quantum-state-generating apparatus, Bell measurement apparatus, quantum gate apparatus, and method for evaluating fidelity of quantum gate An apparatus for generating a quantum state of a two-qubit system including two qubits, each qubit being represented by a particle which invariably travels through one of two paths, includes a quantum gate composed of an interferometer for implementing an-interactio... | 02/20/2007 |
| 7167620 | Devices and methods for all-optical processing and storage Devices and methods for optical processing and storage are described. In a preferred embodiment, an integrated optical gate matrix, that includes a set of nonlinear elements and waveguides interconnecting at least some nonlinear elements in the set of nonlinear elem... | 01/23/2007 |
| 7164525 | Wavelength converting devices Wavelength conversion devices for converting fundamental waves to light of a different wavelength are provided. The devices have a wavelength converting layer comprising a plate-shaped body of a non-linear optical crystal having a first main face and a second main f... | 01/16/2007 |
| 7164955 | Method for online characterization of a moving surface and device therefor The process for the on-line characterization of a surface in motion, preferably a galvannealed sheet, essentially comprises an industrial microscope associated with a stroboscopic laser illumination device, a positioning assembly, an assembly for acquiring and proce... | 01/16/2007 |
| 7141440 | Apparatus and method for measuring a property of a layer in a multilayered structure A property of a layer is measured by: (1) focusing a heating beam on a region (also called “heated region”) of a conductive layer (2) modulating the power of the heating beam at a predetermined frequency that is selected to be sufficiently low to ensure that at ... | 11/28/2006 |
| 7133173 | Nonlinear electromagnetic quantum information processing Nonlinear electromagnetic elements can efficiently implement quantum information processing tasks such as controlled phase shifts, non-demolition state detection, quantum subspace projections, non-demolition Bell state analysis, heralded state preparation, quantum n... | 11/07/2006 |
| 7130093 | Optical implementation of bounded non-deterministic Turing Machines Method and an optical computation device for obtaining an indication about the existence of a feasible solution for a bounded instance of a problem that belongs to the non-deterministic polynomial class of problems, using parallel optical computations employing a mu... | 10/31/2006 |
| 7126106 | Quantum computer and quantum computation method Quantum computer includes optical systems arranged in series each of the plurality of optical systems includes first half-wave plate, first polarizing beam splitter, first switching mirror, first photodetector, first polarization rotator, optical cavity which contai... | 10/24/2006 |
| 7126731 | Optical latch based on lasing semiconductor optical amplifiers An optical latch based on a lasing semiconductor optical amplifier is disclosed. The optical latch is configured to achieve one or more stable states in response to the input of predetermined signals at a “SET” input and a “RESET” input of the optical latch.... | 10/24/2006 |
| 7123407 | Apparatus and method for realizing all-optical NOR logic device using gain saturation characteristics of a semiconductor optical amplifier The present invention relates to an apparatus and a method for realizing all-optical NOR logic device using the gain saturation characteristics of a semiconductor optical amplifier(SOA). More particularly, the invention relates to a 10 Gbit/s all-optical NOR logic d... | 10/17/2006 |
