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7122837 |
Structures formed in diamond
N-V centers in diamond are created in a controlled manner. In one embodiment, a single crystal diamond is formed using a CVD process, and then annealed to remove N-V centers. A thin layer of single...
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7031181 |
Multi-pulse reset write scheme for phase-change memories
A memory cell device and method that includes a memory cell, and first and second write pulse signals. The memory cell has phase-change material capable of being set and capable of being reset. The...
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6982898 |
Molecular memory integrated circuit utilizing non-vibrating cantilevers
Memory devices in accordance with the present invention can comprise a molecular memory integrated circuit including a set of actuators capable of moving one or more platforms. In one embodiment...
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6891749 |
Resistance variable ‘on ’ memory
A resistance variable memory element and method for stabilizing the resistance variable memory element by providing a first and second electrode connected to a resistance variable material whereby...
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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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6639825 |
Data memory
The data memory device has a plurality of memory cells for storing data which are represented by a first physical value of the storing memory elements, especially their conductivity or charge. The...
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6602671 |
Semiconductor nanocrystals for inventory control
A novel encoding system, compositions for use therein and methods for determining the source, location and/or identity of a particular item or component of interest is provided. In particular, the...
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6535418 |
Optically programmable address logic for solid state diode-based memory
A level of a solid state memory device includes main memory and address logic. The address logic is programmed by causing current to flow through an address element of the logic; and irradiating...
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6514435 |
High density and fast persistent spectral holeburning in II-VI compounds for optical data storage
High density, photon-gated persistent spectral holeburning is effectuated in rare earth doped II-VI compounds such as MgS, CaS, BaS and SrS. Two-photon ionization of rare earth ions is performed,...
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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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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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5740101 |
Time-stable labeling of individual atoms or groups of atoms in the surface of a solid, and the storage of information units in the atomic range
Abstract of the Disclosure: A process useful for information storage is described for the time-stable labeling of individual atoms or groups of atoms in the surface of a solid by locally removing...
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5737281 |
Data writing method and device of semiconductor device
An ultraviolet laser beam emitted from a laser beam source 1 is subjected to on/off control at an AOM 3, is linearly scanned at an equal speed by a polygon mirror 5 and an fΘ lens 6, is collected...
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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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5627815 |
Precision machining method precision machining apparatus and data storage apparatus using the same
A method and apparatus for precision machining a surface suitable for use as a data recorder, using a scanning probe microscope (SPM) capable of observing an electrically insulating surface. The...
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5517151 |
Intensity controlling circuit having fuses and EPROMs for LED-array head
An intensity controlling circuit device can correct variation in intensity of light beams, due to tolerance occurred in each of a plurality of LED-array chips, emitted by LEDs provided in each of...
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5499206 |
Semiconductor optical memory device for optical storage of information with increased recording density
A semiconductor optical memory device includes a semiconductor layer formed with a plurality of elemental recording areas each having a size generally equal to a wavelength of the optical beam. A...
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5440148 |
Quantum operational device
A quantum operational device includes a plurality of quantum boxes arranged in a plurality of stages isolated by a distance which permits tunnelling of electrons or holes through the distance, uses...
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5439777 |
Recording and reproducing apparatus and method for applying a pulse voltage and an electromagnetic wave
A recording-reproducing apparatus includes an electrode, a material that changes its intramolecular electron distribution upon the application of electromagnetic wave irradiation and an electric...
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5384728 |
Optical information storage apparatus using optical fiber
An optical information storage apparatus includes an optical switch element and an optical fiber. The optical switch element receives an optical input and outputs an optical output only when the...
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5371698 |
Random access optical memory
The multi-dimensional optical memory utilizes the wavelength and intensity dimensions to effect a high density record. With incorporation of a broadband light source, scanning monochromator and...
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5351209 |
Apparatus for converting optical information into electrical information signal, information storage element and method for storing information in the information storage element
An apparatus for converting optical information into an electrical information signal includes a plurality of one-dimensional conversion arrays arranged in parallel form. Each one-dimensional...
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5272667 |
Optical information recording apparatus for recording optical information in a phase change type optical recording medium and method therefor
There is disclosed an optical information recording apparatus for recording optical information in a phase change type optical recording medium and a method therefor. The order of the atomic...
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5262981 |
Storage of information units in the nanometer range
A process for the storage of information units in a nanometer range involves producing cup-like pits in a noble-metal surface.
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5233556 |
Optoelectronic memory and logic device
An optoelectronic memory and logic device has a function of a reset-set flip-flop (RS-FF) or an exclusive-OR (EOR) gate. The RS-FF includes a first and a second optical inverter circuits. The...
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5162819 |
Information processing apparatus, information processing method, and recording medium employed therefor
An information processing apparatus comprises a recording medium having at least an underlying electrode and a photoconductive thin film and having an insulating or semiconducting recording region...
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5138572 |
Optical information memory medium including indium (In) and bismuth (Bi)
Recording and erasing optical information can be done by using an alloy film capable of forming two stable crystalline states differing in crystal texture and optical characteristics by being...
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5132934 |
Method and apparatus for storing digital information in the form of stored charges
Method and apparatus for storing digital information in a dense memory structure. A semiconductor substrate has a thin insulating layer formed thereon. Over the thin insulating layer is formed a...
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5072423 |
Optical information memory medium recording and erasing information including gallium and antimony
Recording and erasing optical information can be done by using an alloy film capable of forming two stable crystalline states differing in crystal texture and optical characteristics by being...
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5058061 |
Method for recording information in an optical information memory medium including indium (In) and Antimony (Sb)
Recording and erasing optical information can be done by using an alloy film capable of forming two stable crystalline states differing in crystal texture and optical characteristics by being...
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5053992 |
Prevention of inspection of secret data stored in encapsulated integrated circuit chip
An integrated circuit chip includes a secure memory element that stores secret data, an opaque layer of material encapsulating the chip, and means for eliminating the secret data from the secure...
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5050123 |
Radiation shield for EPROM cells
An improved shield for an EPROM cell comprising a first and second metalization cover sections along with upstanding elements is disclosed. The invented shield protects selected EPROM cells from...
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5038322 |
Method of and device for sub-micron processing a surface
A method of and a device for sub-micron deforming a surface (15) is described, for example for the purpose of inscribing information. During scanning of the surface the tip (14) of a scanning...
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5038321 |
Eraseable electro-optic storage disk, method of and apparatus for recording and reading data therefor
An erasable electro-optic storage disk for use in focused laser beam operated data handling systems comprises a semiconductor substrate with a storage layer arranged on top of it that is capable of...
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5010517 |
Semiconductor optical apparatus
A semiconductor optical apparatus of the invention has a quantum well super-lattice structure essentially of only direct transition semiconductor or comprising a direct transition semiconductor and...
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4893273 |
Semiconductor memory device for storing image data
A first insulating film of a light-transmitting material is formed on a channel region between the source and drain regions on a semiconductor substrate. A floating gate electrode is formed on the...
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4864168 |
Process for controlling an optical pnpn thyristor to be driven
A process for controlling an optical pnpn thyristor to be driven comprises a step of applying a train of pulses to maintain a low impedance state of an optical pnpn thyristor which is shifted...
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4832456 |
Liquid crystal disc memory with circular grooves for auto-focusing of write-in beam
An improved optical memory disc is disclosed which has a liquid crystal layer on which information is written by applying electric field. The liquid crystal layer is sectioned into a plurality of...
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4825408 |
Multistate optical switching and memory apparatus using an amphoteric organic charge transfer material
The charge transfer apparatus of the present invention comprises an optical storage medium of either a mixture of several charge transfer compounds of varying redox potential or a single amphoteric...
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4798958 |
CCD imaging sensors
A method for promoting quantum efficiency (QE) of a CCD imaging sensor for UV, far UV and low energy x-ray wavelengths by overthinning the back side beyond the interface between the substrate and...
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4774702 |
Erasable optical memory employing a marmen alloy to effect phase-change erasing in a chalcogenide film
A portion of a chalcogenide transformation film in a less reflective phase responds to a low energy laser beam writing pulse by transforming to a crystalline phase. A marmem alloy, secured to the...
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4771169 |
Optical digital processing device
This invention consists of three separate functional devices fabricated from a single monolithic semiconductor chip. The three devices may be constructed as a unit to work in concert, or any of the...
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4672578 |
Method of information recording on a semiconductor wafer
An information recording method is provided, in which a p- or n-type semiconductor wafer is irradiated with an energetic particle beam such as an electron beam thereby to control, e.g., decreased...
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4672577 |
Three-dimensional integrated circuit with optically coupled shared memories
Adjacent memory layers of a multi-layered integrated device as optically coupled, so that data written on one layer can be copied onto its adjacent layers through the optical coupling.
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4652926 |
Solid state imaging technique
An optical imaging system for use as a solid-state camera, for example, which includes a plurality of solid-state elements for providing long-term storage of images, such elements being, for...
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4642799 |
System and process for optical processing of information
An optical processor is formed by utilizing a doped electrooptic semiconductor material. By making information in the form of light incident on the crystal, a refractive index change is effected....
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4613519 |
Electron-beam-induced information storage in hydrogenated amorphous silicon device
A method for recording and storing information in a hydrogenated amorphous silicon device, comprising: depositing hydrogenated amorphous silicon on a substrate to form a charge-collection device;...
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4603401 |
Apparatus and method for infrared imaging
An apparatus and method for infrared imaging is disclosed in which a pattern of infrared radiation is detected and stored in uniformly distributed localized states in a semiconductor. Photoemission...
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4602352 |
Apparatus and method for detection of infrared radiation
An infrared detector and method of detection based on depletion of charge stored in localized states is disclosed. The detector and method involve the determination of the depletion of charge...
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4593306 |
Information storage medium and method of recording and retrieving information thereon
Information storage medium comprising a semiconductor doped with first and second impurities or dopants. Preferably, one of the impurities is introduced by ion implantation. Conductive electrodes...
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