198085 ⎘
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; Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following Methods for initialising servos, start-up sequences
Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit
#302OPTICAL DISC DRIVE, METHOD OF MOVING BEAM SPOT AND COMPUTER-EXECUTABLE PROGRAM IMPLEMENTABLE BY THE OPTICAL DISC DRIVE
#303Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit
#304Servo position adjustment method and servo position adjustment device
#305Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit
#306Recording medium, recording apparatus, and reading apparatus
#307Optical head unit and optical disc apparatus
#308METHOD AND SYSTEM FOR GENERATING LENGTH DEVIATION STATISTICS, AND METHOD AND SYSTEM FOR TUNING CONTROL PARAMETER OF OPTICAL STORAGE DEVICE USING THE SAME
#309Optical Recording Apparatus With Drawing Capability of Visible Image on Disk Face
#310Read apparatus and a method of detecting deterioration of a disk
#311Method of focus error signal adjustment in optical disk device and optical disk drive
#312Recording/reproduction method and recording/reproduction apparatus
#313Optical disc drive and method for controlling the position of a lens
#314Optical disc and optical disc device
#315Differential push-pull gain controlling method and apparatus to reduce the effects of rotational eccentricity
#316Optical disk apparatus controlling focus and tracking drive in gap and recorded area when adjusting write power
#317Method and apparatus for reproducing information from recording medium
#318Method for gain adjustment for production of a lens position signal, and a corresponding appliance for reading from and/or writing to an optical recording medium
#319Optical disc drive and focus control method thereof
#320Method of vertical deviation disc detection
#321METHOD OF ADJUSTING SPHERICAL ABERRATION AND FOCUS OFFSET IN OPTICAL DISK APPARATUS AND OPTICAL DISK APPARATUS USING THE SAME
#322METHOD AND APPARATUS OF CALIBRATING PARAMETERS UTILIZED FOR DETERMINING SERVO SIGNALS
#323Disk drive appratus and method, recording medium, and program
#324Focus pull-in control device and method thereof
#325Apparatus for reading and/or writing optical recording media
#326Method and device for controlling beginning point of optical pick-up unit
#327Optical recording/playback apparatus and method for adjusting playback parameters thereof
#328Optical disk drive and method of determining working distance
#329Information recording and reproduction method and information recording and reproduction device
#330Optical pickup utilizing nonvolatile memory and adjustment method
#331Method and device for adjusting an amplification for producing a focus error signal
#332Disc-driving apparatus and method for controlling the same
#333Optical pickup, information processing apparatus and signal processing method
#334METHODS AND APPARATUSES FOR ACCESSING A HYBRID DISC
#335Control unit and optical disk drive including the control unit
#336Optical disc having tracking polarity information, and apparatuses and methods for recording and reproducing user data on the same
#337Optical disc apparatus
#338Information playback apparatus and information playback method
#339METHOD FOR DETERMINING A DRIVING FORCE TO DRIVE AN OPTICAL PICKUP HEAD
#340Method and circuit for protecting optical pickup actuator
#341Actuator calibration using a focus error signal
#342Optical disc device, optical pickup control method and optical disc discriminating method
#343Unbalanced disc detection and rotating speed control in disc reading apparatus
#344Optical disk apparatus and method of adjusting the same
#345ABERRATION CORRECTING METHOD
#346Digital servo system with moving average filter
#347Digital servo system with pre-processing old control states
#348Demodulation of a focusing error signal during a focus search for a lens focusing control in an optical disc system
#349Optical disc apparatus
#350Optical disc device
#351Optical disc recording device
#352Focal control adjusting method and optical disk apparatus
#353Radial runout detection method and device for an optical disk drive
#354Optical reproducing apparatus capable of using laser diode of two wavelengths
#355Method and device for measuring the tilt of an optical disc
#356Recording disc and apparatus and method for reproducing recorded information
#357Optical disc apparatus, method of adjusting focus offset for optical disc apparatus, and program for executing focus offset adjustment
#358Method for determining kind of optical recording medium
#359Optical disk apparatus with approximate focus control of laser beam
#360Focus control for optical scanner
#361Optical disk device and optical disk discriminating method
#362METHODS OF CALIBRATING SERVO SIGNAL BIAS FOR OPTICAL DISC
#363Recording and reproducing apparatus
#364Optical pickup driving apparatus and optical pickup beam spot positioning method
#365Optical recording apparatus with drawing capability of visible image on disk face
#366Optical disc recording/reproducing apparatus
#367Optical disc having focus offset area
#368Optical disc apparatus
#369Method for seeking target position on multi-layer disc
#370Optical disc apparatus and defocus control method
#371Optical pickup control apparatus, optical pickup control method, and optical disc apparatus
#372Optical disk apparatus
#373Calibration of a focus offset in an optical drive
#374Method and apparatus for automatic adjustment procedure of the optical drive
#375Optical storage device, recording method of optical storage medium and program
#376Disk substrate and optical disk
#377Optical disc, optical disc apparatus, optical disc reproducing method, and digital content publication
#378Information recording medium and information recording device
#379Writing control method of optical recording/reproducing apparatus
#380Optical disk unit and aberration correcting method used for this
#381Method for testing assembling quality of optical storage devices and optical storage device for using such method
#382Method for performing servo control for blank discs
#383Enhanced methods for electronic storage device calibrations
#384Optical disk apparatus having servo parameter setting unit
#385Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit
#386Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit
#387Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit
#388Defocus detection device, defocus detection method and optical disk unit using the same
#389Spherical aberration detection
#390Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit
#391Recording medium, recording apparatus, and reading apparatus
#392Focus point calibration for optimum recording quality
#393Disk device and control method for disk device
#394Focus control device and method of adjusting focus gain prior to focus-servo operation
#395Optical recording apparatus capable of optimizing write defocus and method thereof
#396Tilt compensation method for optical recording/reproducing apparatus
#397Optical pickup spherical aberration compensating method, optical pickup spherical aberration focus offset compensating method, and optical pickup device
#398Recording/reproduction device, recording /reproduction method, recording/reproduction system, program thereof, and recording medium
#399Optical disc center error amplitude calibration
#400Method and apparatus for controlling a tilt between an optical axis of an optical pick-up head and an optical disc
#401Optical disk drive with target focus control
#402Method of controlling focus of optical disk recording and reproducing device
#403Information recording apparatus and information recording medium
#404Disc drive calibration with forced track traversing signal
#405Optical recording/reproducing apparatus, medium, and method and controlling apparatus, medium, and method therefor
#406Method for determining a compensation value for tracking error signal
#407Optical disk, optical disk device, and method for setting optical disk device
#408Device and method for controlling tilt servo
#409Optical disc reading and reproducing apparatus
#410Optical disc reading and reproducing apparatus
#411Method and apparatus for controlling tilt in an optical disc device
#412Disc reproduction device
#413Focus control method for optical disk device
#414Optical pickup
#415Method of reactivating servo control system
#416Module for improving optical disc readability via dynamically adjusting optical focus position and method for the same
#417Device and method for controlling tilt servo
#418Method for adjusting focus or tracking detection unit, and optical disc device
#419Apparatus and setup method for reproducing information recorded in optical recording medium, and computer product
#420Servo-controlling method of an optical disk apparatus
#421Optical disc device
#422Recording disc and apparatus and method for reproducing recorded information
#423Optical recording medium, and recording/reading method and recording/reading apparatus for optical recording medium
#424Method for generating gain-adjusted tracking error signal
#425Recording medium and method for recording and reproducing data on and from the same
#426Method and device for discriminating deflecting disc
#427Method and apparatus for recording/reproducing information with respect to optical recording medium
#428Optical disk drive capable of adjusting control information to recording layer
#429High-speed focus pull-in controllers for adaptively responding to disk surface vibration of an optical disk device and focus control methods thereof
#430Method of recording and reproducing an optical recording medium
#431Recording medium, recording apparatus, and reading apparatus
#432Holographic recording apparatus
#433Recording medium, recording apparatus, and reading apparatus
#434Recording medium, recording apparatus, and reading apparatus
#435Recording medium, recording apparatus, and reading apparatus
#436Recording medium, recording apparatus, and reading apparatus
#437Optical storage system and control method
#438Optical disk apparatus which changes a tilt value of an objective lens and method of recording with such optical disk apparatus
#439Method for detecting eccentricity of an optical disc, and optical disc drive that performs the method
#440Optical disc apparatus, an optical disc method, and a semiconductor integrated circuit capable of adjusting a focus position of a light beam and a spherical aberration
#441Recording and/or reproducing apparatus and method with a signal quality determining device and method
#442Information-processing apparatus and information administration system using the same
#443Tracking learning/adjusting method and optical disk device
#444Optical disc device
#445Optical disk drive, information reproducing method and information storage medium
#446Control apparatus, control method, access apparatus, access method, program, and write-once recording medium
#447Tracking gain control method and tracking control circuit
#448Optical disc drive with a system behavior detection module
#449Recording and reproducing method, recording and reproducing device and semiconductor circuit
#450Optical disk apparatus
#451Disc apparatus for reproducing a signal on a disc using a laser beam
#452Optical disc drive
#453Optical disc identification apparatus and method
#454Apparatus and method for detecting optical disc type and/or adjusting track balance
#455Optical disk reproducing apparatus, and offset adjustment method
#456Skew control method and skew control unit
#457Optical information recording apparatus
#458Multi-standard optical disk and method and apparatus of reading from and recording to the disk
#459Optical disk drive focusing apparatus using sum signal
#460Optical-disc driving apparatus, optical-disc driving method, storage medium, and program
#461Method and apparatus to generate tracking error signal, optical storage drive using the same, and lead-in control method for the optical storage drive
#462Disc discriminating method and information reproducing apparatus using thereof
#463Optical pickup device and apparatus for reading data from optical storage medium
#464Record/playback apparatus and record/playback method
#465Method for calibrating tilt control values of a pickup head in real time
#466Method and related apparatus for diagnosing crosstalk within an optical pick-up unit by utilizing firmware
#467Method for obtaining an optimum focusing point of an optical pickup unit and a servo system of an optical disk drive using this method
#468Focus control method of optical pick-up system and apparatus thereof
#469Apparatus of phase-frequency detector
#470Tilt detection system, tilt detection method and tilt adjustment method
#471Method and related optical disk accessing apparatus for calibrating optical disk tilt servo system according to non-constant relation between locations and tilt angles of optical disk
#472Wobble clock generator and driving method thereof
#473Apparatus of adjusting wobble clock
#474Method of determining ADIP information through counting identical bits and different bits
#475Data slicer of dynamically adjusting slice level
#476Method and related apparatus for evaluating beta-parameter according to write-in result of portion of write-in data with specific content while performing optimal power control of optical disk drive
#477Focus-balance calibration method
#478Method for adjusting focus bias in optical disk device
#479Method and related apparatus for evaluating beta-parameter according to results of read data sliced with different slicing levels while performing optimal power control of optical disk drive
#480Method and related apparatus for decoding information carried by wobble signals
#481Optical disk reproducing device
#482Apparatus and method for generating wobble clock
#483Method of vertical deviation disc detection
#484Optical disk apparatus and optical disk processing method