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144results about "Systems characterised by carrier shape" patented technology
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Method of recording or reproducing data on or from high density multi-layer recording medium using variable light intensity
InactiveUS7009927B2Diminishing of dataDiminishing of surfaceOptical beam sourcesRecord information storageHigh densityData recording
A high-density optical recording medium and method of recording data on the optical recording medium. The optical recording medium includes a plurality of data recording / reproducing surfaces having reflectances for light passing through a pit area, a land / groove area, and a land / groove area on which data are recorded, of a data recording / reproducing surface included between a light source for emitting light and a recording / reproducing surface selected from the plurality of data recording / reproducing surfaces, the reflectances satisfy the expressions r1≧r2≧r3 and {(r1−r3) / r3}≦0.2, where r1, r2 and r3 are the reflectances of the pit area, the land / groove area and the land groove area on which data are recorded, respectively.
Owner:SAMSUNG ELECTRONICS CO LTD
Multi-layer optical recording media and system for recording and reproducing information data
InactiveUS6498775B1Precise alignmentOptical beam sourcesRecord information storageEngineeringOptical recording
Owner:REVEO
Method for writing of data in an optical memory, apparatus for performing the method and optical memory formed thereby
PCT No. PCT / NO96 / 00154 Sec. 371 Date Dec. 23, 1997 Sec. 102(e) Date Dec. 23, 1997 PCT Filed Jun. 24, 1996 PCT Pub. No. WO97 / 01165 PCT Pub. Date Jan. 9, 1997In writing of optical data in an optical memory, the optical memory is linearly transported along a path past two or more physically separated write units. The two write units are provided at a distance from one another along the path and are mutually stepwise displaced in the path's transverse direction. The distance along the path separating write units is greater than a width of a preceding write unit. Each write unit is assigned to a section of the optical memory, with the result that the writing data is performed in the transport direction in separate and successive stages. Each stage contributes a fraction of the volume of information to be recorded during the writing.
Owner:OPTICON +1
Optical tape media, marking, systems, and apparatus and process for producing thereof
ActiveUS20070206477A1Facilitate spoolingRecording verificationIntegrated optical head arrangementsMagnetic tapeEngineering
Disclosed herein are aspects of optical tape technology, tape manufacturing, and tape usage. Methods and systems of tape technology disclose optical tape media including: configurations, formulations, markings, and structure; optical tape manufacturing methods, systems, and apparatus methods and systems including: curing processes, coating methods, embossing, drums, testing, tracking alignment stamper strip; optical tape methods and systems including: pick up head adapted for the disclosed optical tape; and optical tape uses including optical storage media devices for multimedia applications
Owner:ORACLE INT CORP
Point cloud occupancy map compression
A system comprises an encoder configured to compress attribute information and / or spatial for a point cloud and / or a decoder configured to decompress compressed attribute and / or spatial information for the point cloud. To compress the attribute and / or spatial information, the encoder is configured to convert a point cloud into an image based representation. Also, the decoder is configured to generate a decompressed point cloud based on an image based representation of a point cloud. A block / sub-block organization scheme is used to encode blocks and sub-blocks of an occupancy map used in compressing the point cloud. Binary values are assigned to blocks / sub-blocks based on whether they contain patches projected on the point cloud. A traversal path is chosen that takes advantage of run-length encoding strategies to reduce a size of an encoded occupancy map. Also, auxiliary information is used to further improve occupancy map compression.
Owner:APPLE INC
Apparatus and Method for Manufacturing Pre-Formatted Linear Optical Data Storage Medium
InactiveUS20070222096A1High read/write rateFaster data access timeRecord carriersInformation arrangementEngineeringThermal radiation
An apparatus for manufacturing pre-formatted linear optical data storage media including an elongated linear polymer layer. The apparatus includes a drum mounted for rotation about a rotation axis, and the drum includes a circumferential outer surface having a predetermined pattern of protrusions for embossing at least one pattern of optically readable embossments in the elongated linear polymer layer as the layer is rolled on the drum. The apparatus also includes a thermal radiation source positioned adjacent the drum for heating the embossments of the elongated linear polymer layer prior to the layer being removed from the protrusions of the outer surface of the drum.
Owner:MICROCONTINUUM
Selecting analog or digital motion picture sound tracks
InactiveUS6211940B1Read simply and inexpensivelyHigh resolutionTelevision system detailsDisc-shaped record carriersComputer graphics (images)Sprocket
A storage medium carries symbols representing digital information encoded in two dimensions. A method and apparatus recovers the symbols using oversampling in two dimensions and derives the information represented by the symbols. In one embodiment, the symbols are carried on motion picture film between the sprocket holes.
Owner:DOLBY LAB LICENSING CORP
Optical tape, optical tape cartridge, optical tape drive, and method for recording data on optical tape
InactiveUS20050117493A1Easy to handleIncrease flexibilityAccessories for auxillary signalsMechanical record carriersEngineeringRecording density
Disclosed is an optical tape which contributes to a high recording density, and which achieves an enhanced flexibility in a width of a data track and a data format. The optical tape includes servo tracks being recorded thereon. These servo tracks contain respective servo signals, and are arranged lengthwise and adjacent to one another over a whole of a width or a part of the optical tape. Further, each of the servo tracks includes address signals being recorded thereon at predetermined intervals in isolation from the corresponding servo signals. These address signals indicate their respective locations of corresponding one of the servo tracks and their respective lengthwise locations on the optical tape. In addition, the servo signals are read from the respective servo tracks, and are used to adjust tracking on the optical tape.
Owner:FUJIFILM CORP +1
Pre-formatted linear optical data storage medium
ActiveUS7369483B2Increase storage capacityImprove featuresMechanical record carriersRecord information storageEngineeringOptical recording
Owner:MICROCONTINUUM
Multi-layer optical recording media and method for recording and reproducing information using the same
InactiveUS6094410AEasy and inexpensive way to upgrade the information storage and reading capabilitiesPrecise alignmentOptical beam sourcesRecord information storageOptical storageLength wave
Disclosed is a novel optical information storage media having M information storage decks. Each information storage deck has N information storage layers, and each information storage layer has a pair of information storage structures. Each paired information storage structure has a characteristic wavelength and polarization state, and from which recorded information can be read by a laser beam having similar wavelength and polarization-state characteristics. A novel system is provided for reading the optical information storage media of the present invention. In the illustrative embodiment, an optical storage device of the present invention having MxNx2 information storage layers can be read using only N laser lines (i.e. spectral components), thereby providing a 2M-fold increase in information storage capacity over prior art systems. The information storage and retrieval system of the present invention is completely backward compatible to allow for the reading of conventional CD-ROM devices. Various techniques are disclosed for manufacturing and reading the optical storage devices of the present invention.
Owner:REVEO
Information recording apparatus
InactiveUS6678220B1Variation of the mark shapeReduce variationOptical beam sourcesRecord information storagePosition controlIrradiation
An information recording apparatus includes an energy generation device for generating recording energy; a position control device for controlling a position of irradiation on the recording medium with an output of the energy generation device; a drive device for driving the energy generation device; a switching device for switching information based on user data and test information to supply the two kinds of information selectively to the drive device; a reading device for reading the marks recorded on the recording medium; an evaluation device for evaluating a reproduced signal obtained by the reading device; and a recording condition control device for controlling a recording condition on the basis of an evaluation result obtained by the evaluation device, wherein, when the marks used for recording the test information are to be reproduced, controlling operation of the position control device is changed to be different from that used for recording the test information.
Owner:HITACHI CONSUMER ELECTRONICS CORP
Apparatus for recording and reproducing high-density information using multi-functional probe
InactiveUS20020080709A1Shorten the timeImprove data transfer rateNanoinformaticsPhotometryComing outHigh density
In the apparatus for recording and reproducing high-density information using a multi-functional probe, media is locally heated not only by near-field optics come out of an aperture and but also by current induced from an end of an conducting cantilever, to record information and thereby increase a recording speed. The apparatus and method for recording and reproducing the high-density information using the multi-functional probe includes a conducting cantilever, in which a cantilever stage and a near-field optical aperture probe are formed in one body, the media is locally heated not only by the near-field optics from a near-field optical aperture probe but also by the current induced from the probe to the media or induced from the probe itself, and then the information is recorded; and an optical detector for reproducing the recorded information with a reflectivity of light come out of the near-field optical aperture probe or a transmission onto the media.
Owner:ELECTRONICS & TELECOMM RES INST
Optical recording/reproducing method and optical recording medium
ActiveUS7136343B2Simple structureImprove featuresMechanical record carriersRecord information storageDielectricState variation
An optical recording / reproducing method and an optical recording medium capable of performing excellent optical recording with a simple structure in a recording layer made of environmentally friendly materials. The optical recording medium has a recording layer formed on a substrate and made of a mixture of a recording assist material and a dielectric material. A laser beam of which intensity is modulated in accordance with information to be recorded is irradiated onto this recording layer to cause a state change in the recording assist material and / or the dielectric material. The information can be recorded by changing optical characteristics thereof such as reflectivity. The recording assist material includes an element selected from Sn, Ti, Si, Bi, Ge, and C as a principle component, while the dielectric material as a base material for the dielectric layers is at least one of ZnS, SiO2, AlN, and Ta2O5.
Owner:TDK CORPARATION
Data storage medium with stepped winding core
InactiveUS6789262B1Minimize disruptive reflectionGood effectApparatus for cylindrical record carriersMechanical record carriersEngineeringHelix
Owner:TESA SCRIBOS
Preparation of light storage nano compound film and read-write method
InactiveCN101456677AHigh sensitivityIncrease contrastSystems characterised by carrier shapeComposite filmFluorescence
The invention relates to a method for preparing and reading-writing a nano optical storage composite film in the technical field of nano material, which comprises the following steps: using a fluorescent dye and an organic photochromic compound to prepare a nano composite material by a re-precipitation method, evenly dispersing the nano composite material into a high molecular polymer, and pouring or spin-coating nano optical storage composite liquid to prepare the nano erasable optical storage composite film on a clean substrate. The method has the advantages of simple and convenient operation and low implementation cost, and can directly utilize a commercialized fluorescent compound to prepare the nano erasable optical information storage composite film which is simple and convenient and easy to operate.
Owner:SHANGHAI NAT ENG RES CENT FORNANOTECH
Method and system of a head for a storage media
ActiveUS6999268B2Filamentary/web carriers operation controlAlignment for track following on tapesComputer hardwareTransducer
Owner:HEWLETT-PACKARD ENTERPRISE DEV LP
High-density optical recording medium and method of recording data on the same
InactiveUS20060072415A1Reduce dataDiminishing of surfaceOptical beam sourcesRecord information storageHigh densityOptical recording
A high-density optical recording medium and method of recording data on the optical recording medium. The optical recording medium includes a plurality of data recording / reproducing surfaces having reflectances for light passing through a pit area, a land / groove area, and a land / groove area on which data are recorded, of a data recording / reproducing surface included between a light source for emitting light and a recording / reproducing surface selected from the plurality of data recording / reproducing surfaces, the reflectances satisfy the expressions r1≧r2≧r3 and {(r1−r3) / r1}≦0.2, where r1, r2 and r3 are the reflectances of the pit area, the land / groove area and the land groove area on which data are recorded, respectively.
Owner:SAMSUNG ELECTRONICS CO LTD
Reproduction apparatus and method
To be capable of obtaining diffuse light with a sufficient amount of light, which is not susceptible to the influence of scratches of a film along the length direction, and to be capable of constructing the apparatus in a small size and at a low cost, a digital audio signal S track or P track is formed on the side of the film furtherest to the left of the left perforations or to the right of right perforations of a movie film, respectively. Light from an LED 51 is diffused by an elliptical diffuser 52, the diffusion angle of which is greater along the width direction of the film than along the length direction thereof, and is radiated onto the P track (or the S track). Then, the transmitted light which has passed through the P track (or the S track) is converged onto a line sensor 43A as a result of passing through a lens 42A, and the light is photoelectrically converted by the line sensor 43A, thereby reproducing digital sound.
Owner:SONY CORP
Optical tape embossing drum and optical tape embossing drum shim
ActiveUS20100136151A1Recording verificationIntegrated optical head arrangementsMagnetic tapeEngineering
Owner:ORACLE INT CORP
Anamorphic three-perforation imaging system
ActiveUS7148947B2Reduce image degradationMaximize image capture areaProjectorsRecord information storageDigital imagingComputer graphics (images)
An anamorphic imaging system is disclosed which maximizes the use of available image area to minimize display magnification and image degradation due to display magnification, reduces the amount of anamorphic squeeze during photography to lower image degradation due to anamorphosis, and in film applications, utilizes a film frame that is only three perforations in height to reduce the amount of original film needed. The frame for either film or digital applications has an aspect ratio of approximately 16:9, is contained within the total available frame area of a three-perforation frame or digital imager, and is sized to maximize image area. In preferred embodiments, the image capture area is approximately 0.900 inches wide by approximately 0.506 inches tall.
Owner:PANAVISION INT LP +1
High-density optical recording medium and method of recording data on the same
InactiveUS20060072446A1Reduce dataDiminishing of surfaceOptical beam sourcesMechanical record carriersHigh densityOptical recording
A high-density optical recording medium and method of recording data on the optical recording medium. The optical recording medium includes a plurality of data recording / reproducing surfaces having reflectances for light passing through a pit area, a land / groove area, and a land / groove area on which data are recorded, of a data recording / reproducing surface included between a light source for emitting light and a recording / reproducing surface selected from the plurality of data recording / reproducing surfaces, the reflectances satisfy the expressions r1≧r2≧r3 and {(r1−r3) / r1}≦0.2, where r1, r2 and r3 are the reflectances of the pit area, the land / groove area and the land groove area on which data are recorded, respectively.
Owner:SAMSUNG ELECTRONICS CO LTD
Optical pickup unit capable of preventing a laser diode from destroying from static electricity
InactiveUS20080080340A1Preventing a laser diode from destroyingOptical beam sourcesOptical detectorsOptical pickupEngineering
An optical pickup unit includes an optical base and at least one laser diode mounted on an outer wall of the optical base. The laser diode has a base portion, and an LD terminal and a GND terminal which extend from the base portion to a rear surface side. Formed on a short-land flexible printed board, conductive patterns enable to short-circuit the LD terminal and the GND terminal of the laser diode at a position apart from the LD terminal.
Owner:MITSUMI ELECTRIC CO LTD
Anamorphic three-perforation imaging system
ActiveUS20050225726A1Reduce image degradationMaximize image capture areaProjectorsRecord information storageDigital imagingComputer graphics (images)
An anamorphic imaging system is disclosed which maximizes the use of available image area to minimize display magnification and image degradation due to display magnification, reduces the amount of anamorphic squeeze during photography to lower image degradation due to anamorphosis, and in film applications, utilizes a film frame that is only three perforations in height to reduce the amount of original film needed. The frame for either film or digital applications has an aspect ratio of approximately 16:9, is contained within the total available frame area of a three-perforation frame or digital imager, and is sized to maximize image area. In preferred embodiments, the image capture area is approximately 0.900 inches wide by approximately 0.506 inches tall.
Owner:PANAVISION INT LP +1
Video coding system providing separate coding chains for dynamically selected small-size or full-size playback
ActiveUS7519229B2Picture reproducers using cathode ray tubesPicture reproducers with optical-mechanical scanningComputer architectureVideo encoding
Embodiments of the present invention provide a coding system that codes data according to a pair of coding chains. A first coding chain generates coded video data that can be decoded by itself to represent a source video sequence of a small size, such as a size sufficient to support the real time playback and display features of a video editing application. The second coding chain generates coded video data representing supplementary data, which when decoded in conjunction with the coded video data of the first coding chain, yields the source video sequence for full-size display. The output of the first coding chain may be stored in memory in a file structure that can be accessed independently of the second chain's output and, therefore, it facilitates real time decoding and playback.
Owner:APPLE INC
Optical read/write apparatus and read apparatus
In one embodiment, the optical read / write apparatus includes a plurality of optical pickups arranged to cross tracks of an optical storage medium and a control section. On finding the data that has been written by any of those optical pickups inaccurate or on detecting any defect at a location where data is going to be written by any of the optical pickups, the control section instructs another one of the optical pickups to write that data on a different track from a track on which the data should have been written.
Owner:PANASONIC CORP
Optical pickup and optical read/write apparatus
ActiveUS8406102B1Improve stabilityRecording verificationFilamentary/web record carriersOptical pickupPhotodetector
An optical pickup includes: a light source; a first diffractive element which diffracts light polarized in a particular direction; an objective lens; a lens actuator which shifts the objective lens so that the magnitude of shift from its initial position in a tracking direction has an upper limit of 0.3 mm to 0.6 mm; a wave plate; a second diffractive element which has two diffraction regions configured to diffract light polarized in a direction that intersects with the particular direction at right angles and which splits the write beam reflected from the optical storage medium through each diffraction region into a transmitted light beam and at least one diffracted light beam; and a photodetector which detects the transmitted light beam, the diffracted light beams that have left the two diffraction regions, and the read beam reflected from the optical storage medium.
Owner:PANASONIC CORP
High density disk recording medium and apparatus using the same
InactiveUS7012880B2Enabling detectionMechanical record carriersRecord information storageOptical pickupHigh density
The present invention relates to a high-density disk that is structured to prevent a collision of an optical pickup's objective lens with the high-density disk if the disk is placed upside down in a disk device that is able to record and reproduce signals to / from the high-density disk. A high-density disk recording medium according to the present invention is structured such that, wherein a recording layer having high-density pit patterns is offset from a center plane of disk thickness, both sides of a clamping zone bisected by the center plane have differing thicknesses. One or both sides may protrude from surface of the disk recording medium, or one side of the clamping zone may protrude from the surface while the other side is indented below the surface.
Owner:LG ELECTRONICS INC
Digital reproduction of optical film soundtracks
InactiveUS7050142B2Easy alignmentProjectorsRecord information storageDigital reproductionImage signal
An apparatus for playback of an analog optical sound track includes a transport for transporting a film including an analog optical sound track. A scanner generates an image signal of only the analog optical sound track. An alignment device aligns the scanner such that the image signal of the analog optical sound track substantially fills a width of the scanner. A processor processes the image signal to form an audio output signal.
Owner:TECHNICOLOR INC
Optical pickup and optical read/write apparatus
In one embodiment, an optical pickup includes an optical system which forms multiple light beams based on the light emitted from a light source and which converges a write beam and a read beam, thereby forming a main spot and a sub-spot, respectively, on an optical storage medium. This optical system converges the write and read beams onto the optical storage medium so that the main spot moves through the same region on the optical storage medium ahead of the sub-spot. The optical pickup further includes a detector for sensing the write and read beams reflected from the storage medium. The detector includes a first photodiode 10 that receives the reflected light from the main spot 50R on the storage medium and a second photodiode 11 that receives a portion of the reflected light from the sub-spot 51R.
Owner:PANASONIC CORP
Lens correcting wavefront error caused by tilt and optical pickup using same
InactiveUS7289417B2Long working distanceAvoid collisionRecord information storageOptical beam guiding meansOptical pickupWavefront
An optical pickup having a plurality of objective lenses. At least one of the plurality of objective lenses is configured so that a type of wavefront error mainly generated by a tilt of the at least one of the plurality of objective lenses is the same as a type of a wavefront error mainly generated by an angle at which light is incident upon the at least one of the plurality of objective lenses.
Owner:SAMSUNG ELECTRONICS CO LTD
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