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7488540 |
Thin film laminate and luminescent element
In a production process of a thin film laminate for constituting an organic EL element or the like, a thin film laminate is provided in which no water stays in a thin film formed of a hydrophilic...
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7124441 |
Method and apparatus for securely associating an optically readable memory with a user machine
A CD-ROM has an obscurable section wherein exists a photosensitive mask material layer or constituent operative to alter the optical properties of areas subjected to prolonged exposure to the...
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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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6687149 |
Volumetric electro-optical recording
In an optical memory device, an electroluminescent matrix has a plurality of individually electrically addressable electroluminescent cells, each having a stack of memory cells. The...
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6218061 |
Ferroelectric charge-transport liquid crystal material
There is provided a ferroelectric charge-transport liquid crystal material comprising a liquid crystal compound, the liquid crystal material having a carrier mobility of not less than 10 -5 cm 2 ...
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6046925 |
Photochromic fluorescent proteins and optical memory storage devices based on fluorescent proteins
Photochromic fluorescent protein moiety having two or more stable states having excitation or emission spectra that are shifted from one wavelength region to another wavelength region in the two...
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5717626 |
Photoelectric sensor, information recording system, and information recording and reproducing method
In a photoelectric sensor that enables information to be recorded on an information recording medium at an intensity amplified to a level higher than that of a current induced by information...
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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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5424974 |
Optoelectric memories with photoconductive thin films
Methods and apparatii are described for information storage in photoconductive film of single layer composition by irradiation of memory elements simultaneously with application of an electric...
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5412595 |
Opto-electronic memory system
An opto-electronic memory system comprises a memory element (14) in which information is stored in an array of optically readable memory locations (17) and reading means comprising an...
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5327373 |
Optoelectronic memories with photoconductive thin films
Methods and apparatii are described for information storage in photoconductive film of single layer composition by irradiation of memory elements simultaneously with application of an electric...
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5195082 |
Optical disk structures for electron trapping optical memory media
An optical disk structure for an erasable optical disk for use with an erasable optical disk drive using electron trapping optical memory media is disclosed in which several distinct layers in...
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5179533 |
Read/write optical memory
An improved read/write optical disk is disclosed which is capable of being rewritten more than 10 6 times. The disk utilizes a storage medium in which data is stored by causing a localized region...
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5160572 |
Optical memory device and apparatus for manufacturing the same
An apparatus for manufacturing an optical memory device, which includes supplying rolls for continuously supplying a sheet-like substrate, a masking endless belt having a plurality of windows of...
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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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4701880 |
Optical system for recording/reproducing information by means of a dielectric breakdown effected by photoswitching of a bias-voltage
An optical information recording/reproducing system comprises (A) a recording medium including a recording-bit producing layer, which is comprised of a fluorescent substance, and a photoconductive...
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4684598 |
Enhanced optically sensitive medium using organic charge transfer materials to provide reproducible thermal/optical erasure
An enhanced optically sensitive medium is disclosed which uses an organic charge transfer complex as the switching material. The organic charge transfer complex includes at least one moiety in an...
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4648074 |
Reference circuit with semiconductor memory array
A reference circuit which is particularly useful in combination with a memory array in which data transistors are arranged in rows and columns and in which the conduction paths of the data...
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4392209 |
Randomly accessible memory display
A randomly accessible memory display is disclosed wherein a latching memory panel can be placed in direct optical contact with the triggering electroluminescent panel having a similar matrix. Once...
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4300211 |
Data-storage devices and bistable circuits therefor
A bistable circuit comprises a light-emitting diode connected in series with a phototransistor and so disposed as to illuminate the latter. When current is flowing--i.e. when the phototransistor...
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4245331 |
Memory pack
A memory pack is provided having a random access memory connected between a positive power source terminal and a ground terminal, an addressing terminal coupled with the random access memory, and a...
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4221002 |
Electro-optically matrix-addressed electroluminescence display with memory
It has been discovered for the practice of this disclosure that there is a threshold for switching with light an AC coupled electroluminescence (EL) device within the ΔV of the luminance-voltage...
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4159443 |
Electroluminescent optical devices
Devices of the nature of magnetic bubble devices, but in which "bits" take the form of light spots, are described. A prototypical device takes the form of an electroluminescent, photoconducting...
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4035774 |
Bistable electroluminescent memory and display device
An electroluminescent memory and display device which may be switched from a first stable state to a second stable state in response to a relatively low switching voltage, and which may be...
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3911423 |
Electrical luminescent displays
An electrical luminescent device having a light emitting device and a photoconductive semiconductor between the light emitting device and an electrical supply source. Means are provided for...
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3860915 |
MATRIX ARRANGEMENT FOR OPERATING OPTICAL ELEMENTS
A matrix comprising optical elements, the optical properties of which being variable through an electro-magnetical field applied, said optical elements are connected in series to a first decoupling...
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3855582 |
PARALLEL BIASED PHOTODETECTOR MATRIX
A parallel biased photoconductor matrix comprises a plurality of light detection cells. Each cell has a pair of series connected low resistance diodes having a common junction. The series connected...
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3855579 |
METHOD OF USING AN OPTIC RELAY COMPRISING AN ELEMENT OF AN ELECTRO-OPTICAL MATERIAL AND A PHOTOSENSITIVE ELEMENT
In order to erase an image recorded on an optic relay comprising an element of electro-optical material and a photosensitive element, the photosensitive layer is uniformly exposed and...
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3851318 |
LIQUID CRYSTAL INFORMATION STORAGE AND READ-OUT SYSTEM
The unique properties of the Smectic C-phase of a liquid crystal are used to store information represented by the bistable orientation directions of molecular axes. Groups of molecules contained...
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3835459 |
BIREFRINGENCE READ Bi Ti O DISPLAY AND MEMORY DEVICE
Information to be stored is written into a single crystal of bismuth titanate, by either direct electrodes, photoconductors, or electron beams. Storage is by oppositely switched domains in the...
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3831153 |
METHOD FOR QUASI CONTINUOUS OPERATION OF AN ELECTRO-OPTIC IMAGE CONVERTER
An improved method for the operation of an image converter or optical buffer store formed from electro-optic and photoconductive materials is disclosed. In general, the method comprises operating...
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3825922 |
CHANNEL PLATE DISPLAY DEVICE HAVING POSITIVE OPTICAL FEEDBACK
Display device comprising a cathode-luminescent layer, a plurality of electron multiplier elements, and a plurality of individually energisable cathodes. The cathodes are photo-cathodes and an...
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3792449 |
FERROELECTRIC CERAMIC STORAGE DISPLAY TUBE
A ferroelectric ceramic is mounted within a CRT in a "strain-biased" state, so that it is birefringent. A reflective layer is mounted adjacent the ceramic, and a photoconductive layer is mounted...
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3787823 |
LIGHT CONTROLLABLE CHARGE TRANSFER DEVICE
A light controllable charge transfer device wherein one surface of a monolithic semiconductor substrate is coated with a photoelectric conductive layer whose surface is covered with a transparent...
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3764813 |
COORDINATE DETECTION SYSTEM
In a coordinate detection system, the interruption of pulsed invisible light beams is used to determine the spatial coordinates of a passive stylus, such as a finger or a pencil, relative to an...
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3740734 |
COARSE GRAIN POLYCRYSTALLINE FERROELECTRIC CERAMIC OPTICAL MEMORY SYSTEM
A coarse grain ferroelectric ceramic sandwiched between a pair of transparent electrodes and a photoconductive layer is used as a memory element. Write-in of information to be stored in selected...
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3701122 |
FERROELECTRIC DOMAIN SHIFTING DEVICES
Ferroelectric crystals which are also ferroelastic, such as gadolinium molybdate, can support stable internal ferroelectric polarization domains. These domains are expanded and moved in the...
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3701121 |
FINE GRAIN FERROELECTRIC CERAMIC OPTICAL DISPLAY DEVICE UTILIZING THERMAL DEPOLING WRITE-IN
An optical display device includes a fine grain polycrystalline ferroelectric ceramic plate, which is located between an optical polarizer and an analyzer. The ferroelectric plate is "reset" by...
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3699374 |
LIGHT ACTIVATED, HIGH RESOLUTION, FIELD SUSTAINED CONDUCTIVITY IMAGE STORAGE AND DISPLAY DEVICE
This invention provides a solid state image-storage panel, in the form of a multi-layered thin film structure, which can exhibit and retain a high resolution image momentarily impressed thereupon...
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3681766 |
FERROELECTRIC/PHOTOCONDUCTOR STORAGE DEVICE WITH AN INTERFACE LAYER
A memory element for use in photoelectric data recording apparatus comprising a layered structure of a conductive substrate, ferroelectric material, discontinuous interface layer, photoconductor,...
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3681765 |
FERROELECTRIC/PHOTOCONDUCTOR MEMORY ELEMENT
A memory element for use in photoelectric data recording apparatus of the type described in U.S. Pat. No. 3,148,354, comprising a sandwich-like structure of a top conductive electrode in electrical...
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3680060 |
ELECTRO-OPTICAL MEMORY EMPLOYING FERROELECTRIC ELEMENT
A photoconductive-ferroelectric device is employed as an erasable storage medium for recording and reading light patterns. The ferroelectric material may be a bismuth titanate crystal and its...
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3675220 |
PLANAR RANDOM ACCESS FERROELECTRIC COMPUTER MEMORY
This memory device uses ferroelectric materials and it stores information as a change in the crystalline formation of the ferroelectric material. In turn, this change manifests itself as a change...
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3643233 |
THREE-DIMENSIONAL OPTICAL READ-ONLY MEMORY
A three-dimensional optical read-only memory is composed of a stack of transparent plates composed of either ferroelectric or ferromagnetic materials wherein binary information is stored as domains...
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3623028 |
INFORMATION READ-OUT SYSTEM
An information carrier includes a base carrying information indicia having physical properties differing from those of the base. The indicia are arranged on the base in a manner such that, during a...
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3614754 |
FERROELECTRIC GADOLINIUM MOLYBDATE COMPENSATION TYPE BISTABLE LIGHT GATE AND LOGIC CELL HAVING MEMORY
Two, electroded, birefringent, bistable crystals of ferroelectric gadolinium molybdate are aligned along their crystallographic c axis between crossed optical polarizers. When the two crystals have...
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3602904 |
FERROELECTRIC GADOLINIUM MOLYBDATE BISTABLE LIGHT GATE-MEMORY CELL
A ferroelectric gadolinium molybdate crystal [Gd 2 (Mo0 4 ) 3 ], having transparent electrodes, positioned between crossed polarizers, is electrically switched between two stable states with...
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3543248 |
ELECTRO-OPTICAL MEMORY MEANS AND APPARATUS
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3539862 |
DUAL CONDUCTOR STORAGE PANEL
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3531648 |
SOLID STATE STORAGE PANEL FOR COLOR REPRODUCTION
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