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)
11/2002
11/26/2002US6487153 System for discriminating optical discs
11/26/2002US6487152 Method of recording information in phase-change recording medium and recording medium for use in the method
11/26/2002US6487151 Optical information recording and reproducing system with overwrite capability and recording medium for use therewith
11/26/2002US6487150 Clock signal generating system
11/26/2002US6487149 Optical recording and reproducing methods for optical disk
11/26/2002US6487148 Edge detection for servo signals in optical storage system
11/26/2002US6487147 Optical information recording medium and an optical information recording/reproduction device
11/26/2002US6487146 Read focus optimization for an optical disk drive
11/26/2002US6487145 Method and system for audio data collection and management
11/26/2002US6487144 Disk recording medium including data pre-formatted-data-recorded header having first and second identical address numbers radially displaced from each other on opposite sides of groove or land track center line, and disk drive unit for use with the recording medium
11/26/2002US6487026 Optical lens system comprising two more than half-spherical lenses
11/26/2002US6487016 Optical head
11/26/2002US6487015 Diffraction grating having multiple gratings with different cycles for generating multiple beams and optical pickup using such diffraction grating
11/26/2002US6485888 Fluorinated alcohol for manufacturing optical recording medium and optical recording medium using the same
11/26/2002US6485808 Method of manufacturing an optical disk substrate, an apparatus of manufacturing an optical disk and an optical disk substrate
11/26/2002US6485413 Methods and apparatus for forward-directed optical scanning instruments
11/26/2002US6484940 Data storage card having both linear and annular data regions
11/26/2002CA2111841C Data formats on optical video tape
11/26/2002CA2049439C Optical material
11/21/2002WO2002093579A1 'non-erasable optical data storage'
11/21/2002WO2002093574A1 Information recording and reproducing apparatus
11/21/2002WO2002093573A1 Recorder
11/21/2002WO2002093571A2 Method and apparatus for producing optical recording media with accurately parallel surfaces
11/21/2002WO2002093570A1 Optical disc adhesive curing device
11/21/2002WO2002093569A1 Hybrid optical disk
11/21/2002WO2002093568A1 Optical head, disc recording/reproducing apparatus, and objective lens drive method
11/21/2002WO2002093567A2 Focus error correction method and apparatus
11/21/2002WO2002059881A9 Method and system for authenticating an optical disc using purposefully provided data errors
11/21/2002WO2002054394A3 Superresolution in periodic data storage media
11/21/2002WO2002048211A3 Hydrogenated block copolymers having varying sizes of hydrogenated vinyl aromatic blocks
11/21/2002WO2002044295A3 Adhesive composition and optical disk using the composition
11/21/2002US20020174412 Method and apparatus for pre-computing routes for multiple wiring models
11/21/2002US20020174308 Control apparatus and optical disc apparatus using it
11/21/2002US20020173615 5% weight reduction start temperature measured by thermogravimetric analysis of </= 400 degrees C in a total of </= 1 wt%
11/21/2002US20020173566 Blend containing phosphite compound
11/21/2002US20020172793 Optical data store comprising an axially substituted cobalt phthalocyanine in the light-writeable information layer
11/21/2002US20020172504 Recording apparatus
11/21/2002US20020172503 Readable storage medium
11/21/2002US20020172499 Information record medium, apparatus for recording the same and apparatus for reproducing the same
11/21/2002US20020172488 Optical waveguide device and light source and optical apparatus using the same
11/21/2002US20020172242 Apparatus for and method of controlling output of a laser diode
11/21/2002US20020172145 Optical pickup and method of fixing a plate with an electronic component
11/21/2002US20020172144 Objective lens system and optical disk apparatus using the same
11/21/2002US20020172143 Limiting shelf life for limited play optical information storage media
11/21/2002US20020172139 Information recording medium
11/21/2002US20020172138 Disk reading/writing device and readable/writable disk
11/21/2002US20020172137 Apparatus for controlling optical pickup and optical writing and reading apparatus having the same
11/21/2002US20020172136 Optical disk apparatus with electrostatic lens actuator
11/21/2002US20020172135 Apparatuses and methods for directing light beams in an optical recording system
11/21/2002US20020172134 Method and system for suppressing spurious reflections
11/21/2002US20020172133 Reflection type compound prism and optical pickup apparatus employing the same
11/21/2002US20020172132 Objective lens for optical pick-up
11/21/2002US20020172131 Compensation of pixel misregistration in volume holographic data storage
11/21/2002US20020172130 Grooving apparatus and grooving method
11/21/2002US20020172123 Data recording method and device, and data-recorded phase-change optical disc
11/21/2002US20020172122 Optical recording medium on which a wobble signal having header information is recorded, an apparatus and method of recording wobble signal, and an apparatus and method of reproducing the wobble signal
11/21/2002US20020172121 Method for recording information on optical recording medium and optical recording medium on which information is recorded
11/21/2002US20020172120 Error counting apparatus and method
11/21/2002US20020172119 Information recording medium and information reading apparatus
11/21/2002US20020172117 Recording method, recorder, reproducing method, reproducer, and record medium
11/21/2002US20020172114 Optical disk drive that can adjust erase power during writing operation
11/21/2002US20020172113 Optical storage medium, optical read/write apparatus, and optical read/write method
11/21/2002US20020172110 Optical recording/reproducing apparatus
11/21/2002US20020172109 Lens actuator incorporated in optical information storage system for promptly canceling fluctuation of radial tilt angle of rotating disc
11/21/2002US20020172106 Apparatus for and method of controlling writing of data when error occurs in an optical drive
11/21/2002US20020172105 Tracking access control method for optical storage medium drive
11/21/2002US20020172104 Device and method for compensating feed control amount
11/21/2002US20020172103 Information access device, information access method, and information storage medium access system
11/21/2002US20020171413 Galvanometer mirror and optical switching device using the same
11/21/2002US20020171327 Microelectromechanical apparatus for elevating and tilting a platform
11/21/2002US20020171028 Focus error correction method and apparatus
11/21/2002US20020171026 Mold, manufacturing method of a mold, manufacturing method of a recording medium and a substrate for such a recording medium
11/21/2002US20020170496 Continuous processing apparatus by plasma polymerization with vertical chamber
11/21/2002DE10221612A1 Optical detector e.g. for DVD or CD, has half mirror with end section for mounting against inclined lateral surface and inclined end surface of retention seat
11/21/2002DE10124185A1 Electromagnetic actuator with coil arrangement for improving the efficiency of a magnetic circuit so that the response time of a read-write head for an optical recording medium, such as a CD, can be lowered
11/21/2002DE10122601A1 Verfahren und Vorrichtung für optische Datenerfassung Method and apparatus for optical data collection
11/21/2002DE10013540C2 Speichervorrichtung und Servowiederherstellungsverfahren für diese Storage device and power recovery method for this
11/20/2002EP1258956A2 Laser diode output control apparatus
11/20/2002EP1258886A2 Information recording medium, apparatus for recording the same and apparatus for reproducing the same
11/20/2002EP1258884A1 Recording medium for storing linking type information and method of processing defective area using the same
11/20/2002EP1258883A1 Recording medium for storing linking type information and method of processing defective area using the same
11/20/2002EP1258882A2 Recording medium and method for managing data
11/20/2002EP1258881A2 Recording medium and method for managing data
11/20/2002EP1258874A1 Production process of optical information recording medium
11/20/2002EP1258873A2 High-density disk recording medium having an asymmetrically-shaped center hole and manufacturing method thereof
11/20/2002EP1258872A2 High-density disk having a protruding portion on a clamping zone
11/20/2002EP1258871A2 Optical pick-up device and objective lens used therein
11/20/2002EP1258870A2 Phase change recording medium for allowing a tracking servo control based on a differential phase detection tracking method
11/20/2002EP1258869A1 Disk reproducing device
11/20/2002EP1258868A2 Optical storage medium, optical read/write apparatus, and optical read/write method
11/20/2002EP1258139A1 Data buffer management for rewritable digital program disk
11/20/2002EP1073555B1 Method and apparatus for assembling an optical recording medium
11/20/2002EP1050056B1 Magnetic engraving method, in particular for magnetic or magneto-optical recording
11/20/2002CN2521704Y Self-aligning assembling apparatus
11/20/2002CN1381053A Method for encoding stream of bits of binary source signal into stream of bits of binary channel signal
11/20/2002CN1381052A Recording method, recorder, reproducing method, reproducer, and record medium
11/20/2002CN1381046A Protective coat for optical recording medium and optical recording medium
11/20/2002CN1381045A Optical lens system comprising two more than half-spherical lenses
11/20/2002CN1381044A Optical scanning device
11/20/2002CN1381043A Information carrier and devices for scanning information carrier