Patents
Patents for G11B 7 - Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor (102,715)
02/2002
02/27/2002CN1338102A Method of immediate writing or reading files on a disc like recording medium
02/27/2002CN1338099A Phase change-type optical recording medium and process for manufacturing the same
02/27/2002CN1338098A Pickup moving mechanism for optical disk devices and pickup moving method
02/27/2002CN1337784A Speed-doubling optical head position regulating method
02/27/2002CN1337701A Recording-medium information-record identifying method, apparatus thereof and recording disc
02/27/2002CN1337696A Method and apparatus for calibration of time sequence of write-dowu processing onto storage medium
02/27/2002CN1337692A Method and apparatus for producing optical information carrier
02/27/2002CN1337691A Optical recording medium and producing method thereof
02/27/2002CN1337690A Optical recording medium capable of rewriting and producing method and apparatus
02/27/2002CN1337689A Recording medium and apparatus and method for producing said medium
02/27/2002CN1337688A Optical-head device
02/27/2002CN1337687A Optical pick-up device of optical-disc player
02/27/2002CN1337686A Pick-up apparatus
02/27/2002CN1337685A Aberration correction element and optical picl-up device
02/27/2002CN1337684A Optical system with aberration correcting lens for optical head
02/27/2002CN1337683A Optical head compatible with several disks of different size
02/27/2002CN1337682A Optical pick-up compatible with several disks of different size
02/27/2002CN1337681A Optical head capable of reading disks in different thickness
02/27/2002CN1337680A Pick-up apparatus
02/27/2002CN1337679A Four-dimensional objective driver
02/27/2002CN1337678A Optical head track seeking method for CD drive
02/27/2002CN1337677A Method and apparatus for quickly generating read-write arrangement of read-write optical recording medium
02/27/2002CN1337676A Optical disc
02/27/2002CN1337650A Information medium
02/27/2002CN1080063C Method and apparatus for reproducing a recording medium
02/27/2002CN1079980C Optical pick-up feeding device
02/27/2002CN1079978C Disc recording/reproduction apparatus and method
02/27/2002CN1079977C Integral optical pick-up device
02/27/2002CN1079976C Apparatus for reading optical data from a motion picture film and a light source therefor
02/27/2002CN1079975C Focus control method and optical disk unit employing said focus control method
02/27/2002CN1079974C Information recording disc with substitution area
02/27/2002CN1079971C Tracking control apparatus and optical pickup having the same
02/27/2002CN1079970C Error signal generating circuit for optical disc regenerating apparatus
02/26/2002US6351450 Disk cartridge and adapter
02/26/2002US6351449 Optical disk with recesses inside an inner circumference of an information recording area and method of making same
02/26/2002US6351448 Information recording medium where address mark comprising pattern suitable for prevention of detection error is recorded, and cutting apparatus for reproducing the information recording medium
02/26/2002US6351447 Recording defect substitution method for a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium
02/26/2002US6351446 Two alloys each containing silver or copper and two other metals
02/26/2002US6351445 Optical pickup device
02/26/2002US6351444 Pickup device with tilt adjusting mechanism
02/26/2002US6351443 Diffractive stack pickup head for optical disk drives and method to fabricate the pickup head
02/26/2002US6351442 Recording medium, recording apparatus and reproduction apparatus with reproduction path flag information
02/26/2002US6351440 Disk reproducing speed control method and a disk reproducing apparatus using this method
02/26/2002US6351438 Apparatus for reading and/or writing information from/onto an optical data carrier
02/26/2002US6351437 Tracking servo circuit
02/26/2002US6351302 Analog sound track digitizer
02/26/2002US6350820 Hydrogenated block copolymers and optical media discs produced therefrom
02/21/2002WO2002015183A2 Method for generating a binary signal having a predetermined spectral shape
02/21/2002WO2002015180A1 Holographic data memory
02/21/2002WO2002015179A1 Holographic data memory
02/21/2002WO2002015178A1 Holographic data memory
02/21/2002WO2002015177A2 Optical disc and information reproducing apparatus for same
02/21/2002WO2002015176A1 Optical information recording device and method, optical information reproducing device and method, and optical information recording/reproducing device and method
02/21/2002WO2002015175A1 Optical information recording medium and recording/reproducing method therefor
02/21/2002WO2002015114A2 Apparatuses and methods for reading after writing in optical recording systems
02/21/2002WO2002014950A1 Use of a data carrier for storing micro-images
02/21/2002WO2002014449A2 Adhesive composition for optical disks
02/21/2002WO2002014386A1 Photopolymerizable resin composition for optical recording media and optical recording media
02/21/2002WO2001084546A3 Interference of converging spherical waves with application to the design of light-readable information recording media and systems for reading such media
02/21/2002US20020022192 Optical disk master
02/21/2002US20020022105 Multilayer; radiation transparent substrates, recording, dielectric layers
02/21/2002US20020022104 Heat sensitive elements
02/21/2002US20020021890 Information recording apparatus, information recording method and information recording medium in which recording controlling program is recorded
02/21/2002US20020021868 Collimators and collimator arrays employing ellipsoidal solid immersion lenses
02/21/2002US20020021771 Detector, reproduction system, receiver and method
02/21/2002US20020021725 Laser diode, semiconductor light-emitting device, and method of production thereof
02/21/2002US20020021658 Rewritable optical recording medium and manufacturing method and apparatus therefor
02/21/2002US20020021657 Disc having grooves and pits with different depths, and method for manufacturing the disc
02/21/2002US20020021656 Optical information medium
02/21/2002US20020021654 Scanning device comprising a magnetically guided linear motor
02/21/2002US20020021652 Optical head device and optical recording and reproducing apparatus
02/21/2002US20020021651 Optical pickup actuator performable tilting operation
02/21/2002US20020021650 Optical pickup device
02/21/2002US20020021649 Compatible optical pickup using light sources following a common optical path
02/21/2002US20020021647 Optical disc
02/21/2002US20020021645 Data recovery apparatus and method
02/21/2002US20020021644 Information recording medium which indicates information according to the wobbling of a track and information recording and reproducing apparatus
02/21/2002US20020021643 Information recording and/or reproducing apparatus, information recording and/or reproducing method, and phase-change recording medium for use in the apparatus and the methods
02/21/2002US20020021642 Optical disc recording method and apparatus
02/21/2002US20020021641 Apparatus and method of controlling laser power
02/21/2002US20020021640 Disc-shaped recording medium, disc recording and/or reproducing method and apparatus and tilt detection method
02/21/2002US20020021639 Disk cartridge, a method of manufacturing same, and a recording/reproducing system
02/21/2002US20020021638 Method for optically recording information and computer-readable recording medium for causing a computer to optically record information
02/21/2002US20020021637 Recording apparatus, recording medium, reading apparatus, and recording medium determination method
02/21/2002US20020021636 Information record and playback apparatus
02/21/2002US20020021634 Optical pick-up actuator
02/21/2002US20020021633 Optical disk reproducing apparatus and setup method
02/21/2002US20020021632 Servo method for optical recording medium
02/21/2002US20020021631 Actuator for optical pickup
02/21/2002US20020021630 High-performance information processing apparatus having multitasking functions
02/21/2002US20020021627 Recording head, method of manufacturing recording head, and information recording apparatus
02/21/2002US20020021594 Optical recording medium and sputtering target for fabricating the recording medium
02/21/2002US20020021524 Optical apparatus for tracking a magnetic tape
02/21/2002US20020021494 Optical device
02/21/2002US20020020821 Method of manufacturing an optically scannable information carrier
02/21/2002US20020020504 Labeling device
02/21/2002US20020020484 Methods for making data storage media and the resultant media
02/21/2002DE10039374A1 Holographischer Datenspeicher Holographic data storage medium
02/20/2002EP1180767A2 Optical information recording medium, manufacturing method, recording and reproduction method, and recording/reproduction device
02/20/2002EP1180766A2 Optical information storage medium comprising two dyes in one recording layer