Quotables
"What can be more palpably absurd than the prospect held out of locomotives traveling twice as fast as stagecoaches?"
The Quarterly Review ; March edition, 1825
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8325403 | Optical programmable matrix processor A bit-matrix processor including a pair of optoelectronic matrices and a controller for causing the matrices to perform Boolean Matrix transforms to perform logical operations, wherein Boolean logical equivalents include logical AND to replace element-wise multiplic... | 12/04/2012 |
| 8325404 | Optical logic devices having polarization-based logic level representation and method of designing the same Logical operations are implemented using polarization-based logic level representation. An input polarized beam is split into a first beam and a second beam. The first beam is polarized at a first relative polarization angle and the second beam is polarized at a sec... | 12/04/2012 |
| 8259377 | Delayed optical logic gates for boolean algebra A system, method, and apparatus for delayed optical logic gates based on slow light and enhanced nondegenerate four-wave mixing processes, where a single or multiple delayed optical routers are utilized for dark resonance interactions in which two-color lasers inter... | 09/04/2012 |
| 8149488 | Method of operating a reconfigurable and integrable optical logic gate based on a single SOA An optical logic gate (10) comprising inputs (12) for optical signals on which to perform a chosen logical operation. An SOA (11) element receives such input signals to be piloted thereby in saturation and its output is connected to at least one... | 04/03/2012 |
| 8081361 | Carbon nanotube signal modulator and photonic transmission device The present invention contemplates a variety of methods and techniques for fabricating a carbon nanotube (CNT) signal modulator for reducing, eliminating, or enhancing the resonance interaction between photonic elements, and a photonic transmission device that may i... | 12/20/2011 |
| 8004734 | Optical logic devices having polarization-based logic level representation and method of designing the same Apparatus and methods for implementing logical operations using polarization-based logic level representation is provided. An apparatus and method split an input polarized beam into a first beam and a second beam, wherein the first beam and the second beam have an i... | 08/23/2011 |
| 7907316 | Optical logic device for processing optical signals An optical logic device has a first mirror confronting a second mirror, and a saturable absorber located between the mirrors. Radiation that is output from the device is output via the first mirror. The reflectivity of the first mirror is such that, in use, for inci... | 03/15/2011 |
| 7876483 | Optically reconfigurable logic circuit To provide an optically reconfigurable logic circuit in which a mount area of an optical circuit is reduced as much as possible and a high gate density is realized. In an optically reconfigurable logic circuit 1 provided with a plurality of configurati... | 01/25/2011 |
| 7869107 | Optical circuit for comparing two N-bit binary words An optical comparator circuit includes a first stage including an optical gate which receives the signals applied to the two inputs and produces at its output an N bit signal with each bit being representative of the logical expression A XOR B for a respective pair ... | 01/11/2011 |
| 7826115 | Quantum computing method and quantum computer An (N+1) number of physical systems each having five energy levels |0>, |1>, |2>, |3>, and |4>, a qubit being expressed by |0> and |1>, are provided in an optical cavity having a cavity mode resonant with |2>-|3>, such that an N number of control systems and a targe... | 11/02/2010 |
| 7791781 | Rapidly reconfigurable all-optical universal logic gate A new reconfigurable cascadable all-optical on-chip device is presented. The gate operates by combining the Vernier effect with a novel effect, the gain-index lever, to help shift the dominant lasing mode from a mode where the laser light is output at one facet to a... | 09/07/2010 |
| 7755821 | Photon logic gates A system, method, and apparatus for photon logic gates based on quantum switch, where a single or multiple quantum switches are utilized for dark resonance interactions in which three-color lasers interact with a four-level or five-level nonlinear optical medium com... | 07/13/2010 |
| 7554707 | Method and apparatus for optical processing An optical logic circuit is disclosed. The optical logic circuit is configured on a substrate of a first material. The optical logic circuit also has an optical layer which overlays the substrate layer and is at least partially configured of a second material. The o... | 06/30/2009 |
| 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 |
| 7408235 | Quantum coherent switch utilizing commensurate nanoelectrode and charge density periodicities A quantum coherent switch having a substrate formed from a density wave (DW) material capable of having a periodic electron density modulation or spin density modulation, a dielectric layer formed onto a surface of the substrate that is orthogonal to an intrinsic wa... | 08/05/2008 |
| 7409131 | All-optical logic gates using nonlinear elements—claim set V An all-optical logic gates comprises a nonlinear element such as an optical resonator configured to receive optical input signals, at least one of which is amplitude-modulated to include data. The nonlinear element is configured in relation to the carrier frequency ... | 08/05/2008 |
| 7388703 | Optical transmission device and optical phase modulator An optical transmission device includes an optical phase modulator and a signal generation function. The optical phase modulator is controlled, so that when the state of an intensity-modulated optical signal shifts from a first luminescent state, through a non-lumin... | 06/17/2008 |
| 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 |
| 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 |
| 7330653 | Quantum dense coding system A Quantum Dense Coding System. The system includes a source, a transmitter and a receiver. The source is capable of down-converting a pump photon into a signal photon and an idler photon and outputting probability amplitudes, the signal photon and the idler photon, ... | 02/12/2008 |
| 7292342 | Entangled photon fourier transform spectroscopy Novel spectroscopy techniques using entangled photons are disclosed. In one technique, entangled photons are directed to a sample of interest, while the photons with which they are entangled are resolved according to frequency. The photons transmitted by or reflecte... | 11/06/2007 |
| 7283381 | System and methods for addressing a matrix incorporating virtual columns and addressing layers A system and methods for addressing unique locations in a matrix. According to some embodiments, the system includes a plurality of uniquely addressable locations. A plurality of virtual columns that include a plurality of serially connected switch elements provide ... | 10/16/2007 |
| 7262905 | Optical amplifier An optical amplifier includes a first optical path, second optical path, semiconductor optical amplifier, and multi-mode interference 3-dB coupler. The first optical path guides oscillation light. The second optical path guides signal light. The semiconductor optica... | 08/28/2007 |
| 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 |
| 7260655 | Optical routing using star switching fabric with reduced effective switching time In one embodiment, a router includes a star switching fabric operable to receive a plurality of optical signals each having a wavelength and each associated with a payload received by the router and to communicate from the switching fabric a plurality of substantial... | 08/21/2007 |
| 7259906 | System and method for voice control of medical devices A light source includes a wavelength shifter that is capable of shifting a shorter optical signal wavelength to a longer optical signal wavelength based at least in part on a Raman effect in a waveguide. The wavelength shifter includes a pump laser that operable to ... | 08/21/2007 |
| 7253268 | Light-driven energy generation using proteorhodopsin A light-driven energy generation system using proteorhodopsin is provided. Proteorhodopsin sequences were retrieved and amplified from naturally occurring members of the domain Bacteria using proteorhodopsin-specific polymerase chain reaction primers. Proteorhodopsi... | 08/07/2007 |
| 7254304 | Devices and techniques for logical processing The invention is directed to apparatus, methods, systems and computer programs which permit a simplification or reduction of the description of a complex digital circuit. This is accomplished by using a completely new system of propositional logic (13B), repr... | 08/07/2007 |
| 7248609 | Amplified beam source Directing an input light beam into a laser diode operated at a power below that required for lasing stimulates emissions, resulting in an amplified output beam. A dynamic steering system can focus the input beam onto front face of the laser diode. The steering syste... | 07/24/2007 |
| 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 |
| 7242867 | Optical cross connect synchronization architecture and method A synchronization architecture for a cross connect switch having an ingress stage, a center stage, and an egress stage utilizes optical interfaces and media to distribute a system clock and frame sync to the I/O modules and switch fabric so that system can reassign ... | 07/10/2007 |
| 7240124 | System and method for transferring data on a network using a single route optimizer to define an explicit route and transfer the information related to the explicit route to a plurality of routers and a plurality of optimized routers on the network An apparatus and method for forwarding data on a digital data network are provided. The network includes optimized routers and a plurality of routers connected on the network. A route optimizer receives information from the optimized routers and plurality of routers... | 07/03/2007 |
| 7239790 | Method for controlling attenuation of an optical element A method for controlling the attenuation of an optical element. A base material, such as a resin, is selected from which to fabricate the optical element. The base material has an intrinsic attenuation or intrinsic absorption spectrum. A predetermined concentration ... | 07/03/2007 |
| 7233607 | Pulsed light sources A source of pulses of coherent radiation at a wavelength of approximately 1 μm, comprises a pump source for producing pump light; a laser cavity comprising an Yb3+-doped gain medium arranged to receive the pump light, the laser cavity being modelocked to... | 06/19/2007 |
| 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 |
| 7145704 | Optical logic gate based optical router A switching element capable of being used in an optical processing device includes an optical signal separator operable to separate a multiple wavelength optical signal into one or more optical signal wavelengths. The switching element further includes a plurality o... | 12/05/2006 |
| 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 |
| 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 |
