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7626842 |
Photon-based memory device and method thereof
A memory device includes a bit cell including an adjustable transmittance component having a first side and a second side. The adjustable transmittance component has an adjustable transmittance...
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7609574 |
Method, apparatus and system for global shared memory using serial optical memory
In some embodiments, a method, apparatus and system for global shared memory using serial optical memory are presented. In this regard, a memory device is introduced to circulate a signal among a...
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7609575 |
Method, apparatus and system for N-dimensional sparse memory using serial optical memory
In some embodiments, a method, apparatus and system for n-dimensional sparse memory using serial optical memory are presented. In this regard, a memory device is introduced to circulate a signal...
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7596016 |
Optically accessible phase change memory
A phase change memory may be configured to enable both optical and electrical accessing of the memory. In one embodiment, each cell may be electrically accessed by a laser beam, and at the same...
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7561455 |
Memory system using single wavelength optical transmission
A controller converts a parallel command signal and address signal, or a parallel write data signal into a first serial signal, and outputs the converted signal as a first optical signal with a...
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7463547 |
Micro computer and method of optimizing microcomputer
A microcomputer includes a circuit block; a nonvolatile memory configured to store optimization data for optimization of an operation of the microcomputer; and an optimization circuit configured to...
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7453785 |
Method for generating a holograrm on a disc surface
A method for generating a hologram on a disc surface provides for the use of calibration spots burned onto a disc with an accuracy greater than one half wavelength of light.
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7433255 |
Information carrier, and system for positioning such an information carrier in an apparatus
The invention relates to an information carrier, and a system for positioning such an information carrier in an apparatus. This system comprises an optical element ( 102 ) for generating a periodic...
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7433256 |
Information carrier, and system for positioning such an information carrier in a reading and/or writing apparatus
The invention relates to an information carrier ( 101 ) intended to be read and/or written by a periodic array of light spots, said information carrier ( 101 ) comprising a data area ( 105 )...
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7308172 |
System for reading data stored on an information carrier
The invention relates to a system for reading data stored on an information carrier. The system comprises a waveguide ( 1203 ) which allows displacing laterally the different components in...
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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...
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7254056 |
Apparatus for optically pre-programming electrically-programmable phase-change memory devices
In an embodiment, a phase change non-volatile memory includes a number of memory cells. The memory cells include a phase change material which may transition between two memory states. The phase...
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7239309 |
Display drivers
Display driver circuitry for electro-optic displays, in particular active matrix displays using organic light emitting diodes. The circuitry includes a driver to drive an electro-optic display...
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7142337 |
Method for generating a hologram on a disc surface
A method for generating a hologram on a disc surface provides for the use of calibration spots burned onto a disc with an accuracy greater than one half wavelength of light.
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7106622 |
Phase-change memory device capable of preprogramming memory cells optically and reading/writing memory cells electrically
In an embodiment, a phase change non-volatile memory includes a number of memory cells. The memory cells include a phase change material which may transition between two memory states. The phase...
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6999657 |
High density optical data storage
A data storage apparatus includes an array of optical fibers. The array has a first end and a second end. The first end of the array includes multiple optical fiber ends, each optical fiber end...
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6943368 |
Quantum logic using three energy levels
A method for quantum computing with a quantum system comprising a first energy level, a second energy level, and a third energy level. The first energy level and said second energy level are...
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6873560 |
Optical memory device
An optical memory device includes a plurality of optical memory cells, at least one wavelength filter, at least one read/write/erase filter, and a plurality of optical strands, wherein each optical...
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6826321 |
Magnetic switching of charge separation lifetimes in artificial photosynthetic reaction centers
Excitation of a triad artificial photosynthetic reaction center consisting of a porphyrin (P) convalently linked to a fullerene electron acceptor (C 60 ) and a carotenoid secondary donor (C) leads...
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6816415 |
ADDITIONAL INFORMATION READ/WRITE SYSTEM, ADDITIONAL INFORMATION READ/WRITE METHOD, ADDITIONAL INFORMATION READ/WRITE PROGRAM, COMPUTER-READABLE PROGRAM STORAGE MEDIUM STORING ADDITIONAL INFORMATION READ/WRITE PROGRAM, AND ID/ADDITIONAL INFORMATION DISTRIBUTING APPARATUS.
An additional information read/write system has an ID/additional information distributing apparatus, an ID postscribing apparatus, and a drive system. The ID/additional information distributing...
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6809977 |
Method for reading and writing memory cells of spatial light modulators used in display systems
A spatial light modulator comprising a memory cell array for use in display systems and a method of operating the memory cell array have been disclosed herein. The memory cell array comprises one...
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6765837 |
High-density memory device formed with microholes and the recording method thereof
A memory device includes a substrate, at least a thin film superimposed on the substrate having a plurality of microholes formed in the thin film, with a first microhole having a zero depth...
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6744681 |
Fault-tolerant solid state memory
A solid state memory device is fabricated by forming a level of the device; identifying defective areas in the level; and programming address logic of the level to avoid the defective areas in the...
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6728154 |
Three-dimensional optical memory medium and process for producing same
The invention relates to a three-dimensional optical memory medium capable of recording and reading a large quantity of information therein and therefrom, and a process for producing the same. A...
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6714437 |
Data memory and method for writing information in a data memory
In a method of writing information in a data storage medium comprising an optical information medium which has a polymer carrier ( 1 ), atoms and/or molecules ( 4 ) that change the refractive index...
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6680860 |
Optical coherent transient continuously programmed continuous processor
Techniques for continuously programming a coherent transient spatial-spectral optical signal processor involve the repeated application of two or more spatially distinct optical programming pulses...
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6567331 |
Avalanche breakdown memory devices and method of using the same
A reverse bias voltage in combination with selective illumination can selectively write data into optical memory. The writing process can be completed quickly since parallel writing of data may be...
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6501676 |
Accessing of two-terminal electronic quantum dot comprising static memory
A method of storing and accessing data utiliaing two-terminal static memory cells made from semiconductor quantum dots. Each quantum dot is approximately 10 nm in dimension so as to comprise...
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6473351 |
Nanocapsules containing charged particles, their uses and methods of forming same
Nanomechanisms are employed in nanomemory elements which, in turn, are employable in nanoscale memory devices. A nanoscale particle is enclosed within a nonocapsule to create a bistable device...
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6327171 |
Digital signal recording/reproducing method
Digital signal sequences to be recorded in predetermined unitary recording areas are transformed into blocks, a plurality of bit data carrying all digit levels to be read and determined upon...
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6307799 |
Acousto optic data storage system on a stationary and high density data storage media
A miniaturized stationary optical storage system capable of reading and writing data on an optical storage media is disclosed. In the disclosed invention, the disk is held stationary and the beam...
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6226109 |
Diffractive security device on compact discs
This invention relates to marking the genuine CD in an easily detectable way while difficult to counterfeit. The improved CD has within its layers a second structured surface parallel to the flat...
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6172926 |
Optical data storage devices and methods
An optical memory 200 including an optical storage element 301 for storing data as a packet of photons, optical storage element 301 delaying in time the packet of photons traveling through the...
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6147889 |
Device and a method for the optical recording, storage and readout of information
A high memory capacity with relatively low demands on the optical quality of the components used is possible in accordance with the invention by the means to generate the at least two light rays...
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6118684 |
Optical memories using electron trapping material
A three-dimensional memory based on the electron trapping materials, comprising at least two thin film layers of different or the same electron trapping materials for storing information in the...
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6108231 |
Solid state director for beams
An apparatus and method for electro-optically controlling the path of a laser beam or other electromagnetic beam in a suitable spectrum (e.g. visible, infrared, etc.) operates entirely in a solid...
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6104511 |
Reflector-based off-axis optical system for holographic storage
The holographic storage and retrieval system according to the present invention comprises one convex reflector and one concave reflector having the same optical axis. The reflective surfaces of the...
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6081470 |
All optics type semiconductor image storage apparatus, and all optics type semiconductor logical operation apparatus
An all optics type semiconductor image storage apparatus includes a superlative semiconductor device. The superlattice semiconductor device includes a superlattice layer which is formed by...
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6064615 |
Optical memory element
An optical memory element (ME) wherein data are written and read by light incident to the memory element constitutes an integral unit crated by a transparent body. The body includes a...
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6005791 |
Optical logic element and optical logic device
Addressable optical logic elements contain an optical memory substance, wherein, under the influence of an impressed magnetic, electromagnetic or electrical field or supplied energy, the memory...
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6005817 |
Method for parallel writing and reading of data in an optical memory, a writing/reading device for use by the method and uses of the method and the writing/reading device
In a method for parallel writing and reading of data in an optical memory, the optical memory includes one or more microlenses for accessing a memory medium, individually addressable elements...
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5922843 |
Analog bacteriorhodopsin molecules
A method of preparing an analog of bacteriorhodopsin in which organic cations selectively replace calcium and magnesium cations. The method comprises preparing a cation-free blue membrane and...
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5875052 |
Optical information storage systems and methods using heterostructures comprising ternary group III-V nitride semiconductor materials
Spatially localized radiation, preferably ultraviolet visible radiation, representing information is impinged onto a spatially localized area of a heterostructure comprising a ternary Group III-V...
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5828595 |
Optical recording and playback apparatus and method using single light absorbents
In a system (apparatus and method) which employs a light absorbent material surrounded by an optically transparent matrix as a recording medium and in which the presence or absence of emission...
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5761111 |
Method and apparatus providing 2-D/3-D optical information storage and retrieval in transparent materials
Sub-micron-scale, micron-scale and greater than micron-scale, crack-free and regularly-shaped structures of high-contrast refractive index are provided in transparent storage media by controllably...
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5740184 |
Decision feedback viterbi detector for page-access optical memories
Signal processing methods for addressing intersymbol interference in page-access optical memories such as holographic or two photon systems are disclosed. The invention takes advantage of the...
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5740117 |
Optical memory for storing data
The present invention concerns optical memories. Such an optical memory (30) comprises a data line (31) which is optically coupled via a directional waveguide coupler (33) to a circular memory loop...
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5719407 |
Collective element of quantum boxes
A collective element of quantum boxes includes a plurality of the first quantum boxes (QD 1 ) arranged within the first surface, between which conduction of electrons is allowed, a plurality of the...
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5581403 |
Beam shaping and beam splitting device and optical head comprising the same
A beam shaping and beam splitting device for converting a cross sectional shape of a polarized parallel incident light beam into a light beam having a corrected cross sectional shape, emanating the...
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5581499 |
Micro information storage system
A device for optically storing and retrieving information incorporating a cadmium fluoride crystal. Using focused ionizing radiation, patterns can be formed in the crystal by the creation of color...
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