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8150225 Optical fiber mounting waveguide device and method for fabricating same  
An optical fiber mounting waveguide device includes a substrate, an optical fiber mounting groove provided on a part of the substrate for mounting an optical fiber, an under cladding layer and a...
8125835 Memory architecture having two independently controlled voltage pumps  
In embodiments described herein, a memory architecture has an array of non-volatile memory cells and a pair of independently controlled voltage pumps. The pair of voltage pumps is coupled for...
7990830 Optical pickup, optical information recording apparatus and optical information recording and reproducing apparatus using the optical pickup  
In holographic recording, it is important to form stably an interference fringe between a reference beam and a signal beam in a holographic storage medium. To suppress factors degrading stability...
7965535 Electrode master for ferroelectric recording and method for recording on ferroelectric recording medium  
An electrode master for ferroelectric recording records information on a ferroelectric recording medium in which the direction of polarization of a ferroelectric material has been unified in one...
7907810 Optical fiber having wave-guiding rings  
A waveguide includes a cladding region that has a refractive index that is substantially uniform and surrounds a wave-guiding region that has an average index that is close to the index of the...
7660180 Dielectric antifuse for electro-thermally programmable device  
A thermally programmable memory has a programmable element (20) of a thermally programmable resistance preferably of phase change material, material and a blown antifuse (80) located adjacent to...
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...
6320683 Optical information recording and reproducing apparatus using a volume holographic memory  
A description is provided of an optical information recording and reproducing apparatus which detachably supports a volume holographic memory formed of a photorefractive crystal. The apparatus...
6222755 Solid state holographic memory  
A method and a compact apparatus to read shift-multiplexed holograms on a storage medium without the need for any lenses, and without the need for moving the storage medium. The shift-multiplexed...
5558884 System for rapidly producing either integrated circuits on a substrate, Interconnections on a printed circuit board or rapidly performing lithography  
A system for rapidly producing an integrated circuit on a substrate using a curable liquid capable of solidification to form a photo-resist pattern corresponding to an artwork representation of...
5448514 Ultra high density dimer memory device  
A memory device having a storage medium including a substrate with a surface configuration having a plurality of asymmetric surface dimers, a device for writing data into the storage medium by...
5301145 Method and apparatus for recording and reading information, and an information recording element  
A method and apparatus for recording and reading information in a recording medium comprising a thin film of an organic compound having polymorphisms. The free energy of each polymorphism is...
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...
5088087 Dual-metal reflective layer recordable/erasable optical media  
Recordable/erasable optical storage media are disclosed. The medium of the present invention generally comprises a rigid substrate, an expansion layer, a retention layer, and a dual-metal...
5079758 Single polymer layer recordable/erasable optical media  
Recordable/erasable optical storage media are disclosed. More particularly, it provides a method and apparatus for recording and erasing information on an optical storage medium. The medium of the...
5032973 Optical recording material containing photochromic compounds  
An optical recording material (21a) or a photochemical hole burning reaction. That is to say, informations are recorded in the recording material formed of a recording member in which molecules...
5026146 System for rapidly producing plastic parts  
A system for rapidly producing a plastic part from a curable liquid which solidifies when subjected to ultra-violet light energy operates with a processor and computer aided design software. The...
4990792 Method for the application and reading of, and bottle with optically readable code marks  
What is described is a method of applying optically readable code marks (14) to the surface of bottles (10) of plastics material or glass by producing depressions in the surface by means of a...
4978578 Optical disk of polycarbonate  
An optical disk of the invention comprises a substrate of an aromatic polycarbonate obtained by polymerizing one or two monomers polymerized through carbonate linkages and a recording layer coated...
4922462 Reversible memory structure for optical reading and writing and which is capable of erasure  
In a reversible memory system, a pulsed laser beam generated from a laser unit is directed to a recording layer formed on a substrate 1. The recording layer essentially consists of a recording...
4831110 Co-polycarbonate copolymer from 2,2-bis(4-hydroxy-3-tertiary butyl phenyl)propane and optical disk  
An aromatic polycarbonate copolymer is useful for a substrate of an optical disk and is composed of 1 to 99 mole percent of the unit of 2,2-bis(4-hydroxy-3-tertiary-butyl-phenyl)propane, 99 to 1...
4811331 Medium for recording digital information using an array of equally spaced micromirrors  
A digital recording medium formed of a thermoplastic substrate having an array of parallel rows of equally-spaced microscopic optically-alterable mirrors each supported by a mesa projecting from...
4807218 System for recording digital information using a regular array of discrete micromirrors  
A digital recording medium formed of a thermoplastic substrate having a regular array of microscopic optically-alterable mirrors each by a mesa projecting from one surface. The parallel rows of...
4780867 Method for erasably recording data by viscoelastic shear deformation  
An erasable optical data storage medium has a polymer dual recording layer including an expansion layer bonded to a retention layer, each of the layers dyed to selectively absorb light in...
4757472 Electrophotographic optical memory system  
An optical memory system for storage and retrieval of digital data using a source of writing light in the visible light range and a separate source of near infrared, polarized reading light. The...
4701879 Associative memory systems  
An associative (content addressable) optical memory system is comprised by a matched optical holographic filter (10, 18, 21, L1, L2) coupled to a digital computing system (14, 15, 16) having a...
4647947 Optical protuberant bubble recording medium  
A disk-shaped optical type recording medium is disclosed which includes a transparent substrate and recording layer formed on the substrate. The recording layer in a single layer, which is made of...
4631704 Methods and devices for charged beam accessible data storage  
Charged beam accessible data storage methods and devices involve a storage medium having an array of protrusions formed on a thermally insulative, substantially charged beam transparent base. The...
4621346 Low power CMOS fuse circuit  
A fuse circuit as used in self-repairing memory devices or the like employs a CMOS inverter and a feedback transistor to provide zero static or standby current. The fuse is in series with the...
4599718 Method for erasing a light recording medium  
A method for erasing a light recording medium comprising a thermoplastic resin having a number average molecular weight of 30,000 or less wherein a recording pit is refilled by using a light beam...
4586165 Thermo-optic information writing process and information support for implementing this process  
The invention relates to thermo-optic writing on an information support comprising a substrate on which there is deposited an organic sub-layer covered by a metal layer.The invention provides a...
4577291 Thermo-optical data writing process and data medium for performing this process  
The invention relates to thermo-optical inscription or writing on a data support comprising an organic intermediate layer (2) covered by a metal layer (3).The invention relates to a writing...
4575822 Method and means for data storage using tunnel current data readout  
Disclosed is a digital memory in which data is stored by establishing perturbations in a surface of a substrate and thereafter identifying the perturbations by establishing a tunnel electron...
4509145 Electrically biased optical storage medium  
The use of a photoconducting material having specific characteristics in conjunction with a heat sensitive optical recording medium also having specific characteristics yields desirable...
4410968 Method and apparatus for recording on a disk supported deformable metallic film  
Information is stored, using a relatively low-power light beam, by redistributing the material in a deformable film. In a disc configuration, positioning of the light beam is achieved by...
4371954 Reversible memory structure with thermo-optical writing and optical reading and process for writing and erasing said structure  
The invention relates to a reversible memory structure with thermo-optical inscription or writing and optical reading on a moving support.According to the invention, the memory structure deposited...
4360895 Permanent memory structure with thermo-optical writing and optical reading and writing process in such a structure  
The invention relates to a permanent memory structure supported by a moving substrate.This substrate is formed by two metal layers (9, 10) vacuum-deposited on the relatively inexpansible substrate...
4336998 Fingerprint transducer and reading apparatus  
The fingerprint transducer contains a sensing member having a sensing surface for receiving a fingerprint, a device for generating an electrostatic charge on the sensing surface and a heating...
4223062 Curl resistant photoplastic film  
A curl resistant transmissively readable photoplastic film is produced having a base ply of polyethylene terephthalate to one side of which is laminated, in sequence, a light transmissive layer of...
4218688 Deformographic storage display system  
A multiple display system for the display of electronically processed data includes a deformographic storage tube in which a deformographically created image pattern is generated. High intensity...
4146930 Thermoplastic optical recording system  
An apparatus for and a method of optically recording or writing data into a thermoplastic layer is disclosed. The recording medium is fabricated as an integral part of the face of a cathode ray...
4105323 Process and apparatus for recording deformation images  
A method and apparatus are disclosed for recording information by deformation on a recording material having a photoconductive thermoplastic layer supported by a flexible transparent backing...
4099262 Automatic memory control feedback system for a cycling optical imaging system  
A system for altering the deformation of a cyclic imaging member is disclosed. After a surface of the cyclic imaging member has been deformed at the beginning of a cycle, the system alters the...
4065308 Deformation imaging element  
A deformation imaging system including an imaging member comprising a layer of a surface deformable material, a layer of an elastomer material, and means for establishing an imagewise electrical...
4063222 Selective erasure of image recording devices  
Method and apparatus for selectively erasing information formed on the surface of image recording device which deforms when illuminated in the presence of an electrostatic field applied...
4053872 Thermoplastic optical recording medium using IR wave length  
An apparatus for and a method of recording or writing optical data into a thermoplastic layer is disclosed. The apparatus includes a layer of photoconductive material that is photoconductively...
4041532 Method of recording wide-band signals on a thermoplastic film by use of a beam of electrons  
This invention concerns a method of recording wide-band signals on a thermoplastic film. The signal to be recorded is converted to an intensity modulation of a beam of electrons which is directed...
4033690 Process for the production or erasure or deformation images and apparatus for the performance of the process  
This invention relates to an improvement in an apparatus for recording or erasing an electrostatic image by deforming a photoconductive thermoplastic layer of a recording material by heating,...
3997243 Color image reproduction system  
A color image reproduction system wherein there are recorded in superimposition on an imaging member a plurality of images respectively corresponding to the color content of different colors of an...
3997238 Holographic recording process using a thermoplastic photosensitive member  
A holographic recording process uses a thermoplastic photosensitive member in which charging on the member and exposing the same to light having holographic information are carried out...

Matches 1 - 50 out of 185 1 2 3 4 >