Optical disc apparatus

Inspection method for optical disc

Resistive temperature sensors for improved asperity, head-media spacing, and/or head-media contact detection

Systems and methods for multi-track media defect detection

Asperity and head-media contact detection using multi-stage temperature coefficient of resistance sensor

Optical disc device, control method thereof, program, and information storage medium

Optical disk apparatus, control method, control program and information storage medium

System for detecting structured artifacts in video sequences

Method and apparatus for determining a location of a feature on a storage medium

Method and apparatus for determining a location of a feature on a storage medium

Optical disc apparatus

Optical disk playback device with prescan functionality for early detection of surface imperfections

Apparatus for reading from and/or writing to a near-field optical recording medium

Optical disc apparatus

OPTICAL DISC APPARATUS AND METHOD OF CONTROLLING THE SAME

Optical disc device

Circuit for generating a signal for controlling reproduction of data recorded on an optical disc

Resistive temperature sensors for improved asperity, head-media spacing, and/or head-media contact detection

Asperity and head-media contact detection using multi-stage temperature coefficient of resistance sensor

Head transducer with multiple resistance temperature sensors for head-medium spacing and contact detection

Resistance temperature sensors for head-media and asperity detection

Method and apparatus for determining an optimal focus bias and spherical aberration compensating value in an optical disc drive

Method and apparatus for determining a location of a defect on a storage medium

Optical information processing method and optical information processing apparatus

COLLISION PREVENTION METHOD AND APPARATUS BETWEEN RECORDING MEDIUM AND LENS

Data storage system and method for calibrating same

METHOD FOR DETERMINING FOCUS HEIGHT

Servo controller and optical disk device

Method and apparatus for compensating for defect of storage medium

DEFORMABLE MIRROR DEVICE AND SIGNAL PROCESSING APPARATUS

Optical disc recording device

Optical disc device

Drive device, optical head, and optical disk recording/reproducing device

Optical information recorder/reproducer, optical information recording/reproducing method and control circuit

Optical accessing system and method for controlling decoding strategy

OPTICAL INFORMATION RECORDING MEDIUM AND RECORDING AND REPRODUCTION APPARATUS

Method and apparatus for determining a location of a defect on a storage medium

Optical tape system

Optical tape embossing drum and optical tape embossing drum shim

Optical tape test system

Data storage system and linear tape

Data storage system and method for operating a servo system

SIGNAL PROCESSING DEVICES AND SIGNAL PROCESSING METHODS

OPTICAL DISC DRIVE WITH DELAYED LAYER JUMP

Servo control signal generation device and an optical disk device using the same

Optical pickup apparatus

Storage system and optical pick-up unit

Method for performing servo defect compensating operation by compensating servo-related signal derived from reading optical medium and related optical disc drive system with DSP

DROP-OUT DETECTING CIRCUIT AND OPTICAL DISC DEVICE

Optical pickup and information equipment

MULTI-SPOT DETECTOR ARRANGEMENT FOR MULTI-LAYER RECORD CARRIERS

Optical Disk Device

Drive control apparatus, drive control method and optical pickup apparatus

Optical disc device

Optical disc device

Information recording device and method, and computer program

Phase error detection apparatus

Optical pickup device and optical disc apparatus

SPHERICAL ABERRATION COMPENSATION METHOD OF OPTICAL STORAGE DEVICE

Information recording apparatus and method, information reproducing apparatus and method, and computer program

Optical disc device

Optical pickup

Optical head device, optical information recording/reproducing apparatus and operation method of optical information recording/reproducing apparatus

Optical pickup having an aberration correction function

Optical disc device and defect detection method for optical disc medium

Optical disc device and control circuit for optical disc device

Recording device and method, reproducing device and method, recording/reproducing device and method, and computer program

Optical disc apparatus and optical pickup

Method of writing data to a disc, disc drive

Optical disk drive with spherical aberration measurement and method of measuring spherical aberration in an optical disk drive

Optical disc apparatus, crosstalk correction method and integrated circuit

Aberration Detector and Optical Pickup With Same

Optical disk drive for writing a re-writable optical disk and method thereof

Optical information recording-reproducing apparatus

Method and Apparatus for Detecting Cracks in an Optical Record Carrier

Optical disk drive

Apparatus and method for detecting defect of optical disc

Optical Data Storage System and Method of Optical Recording and/or Reading

Optical pick-up head, optical information apparatus, and optical information reproducing method

Multi Layer Variable Refractive Index Unit

Optical pickup

Anti-Shock Optical Recording and Reproducing Device

Optical Apparatus Capable of Generating Adaptive Control Signals

Optimum tracking error compensation for improved optical disk playability

Focusing controller apparatus and method for an optical disk drive

Spherical Aberration Detector

Optical pickup and optical information reproduction system

Method For Reproducing Information From a Plural Layer Optical Information Carrier

DISC DRIVE AND METHOD FOR DETERMINING WRITE PARAMETERS

Disc Drive Apparatus With Non-Linear Observer

Boundary Detection Apparatus, Boundary Detection Method, Boundary Detection Program, and Information Recording Medium

Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method

Optical recording medium, information recording or reproducing method, and information recording or reproducing apparatus

Actuator Position Control Method and Corresponding Apparatus

Tracking Error Signal Calibration Method, and Disc Drive Implementing Such Method

Optical pick-up head, optical information apparatus, and optical information reproducing method

Optical pick-up head, optical information apparatus, and optical information reproducing method

Optical head device and optical information apparatus using this optical head device, and computer, optical disk player, car navigation system, optical disk recorder and optical disk server using this optical information apparatus

Optical pick-up head, optical information apparatus, and optical information reproducing method

METHOD OF PROCESSING DEFECT DETECTION SIGNAL IN RECORDING AND/OR REPRODUCING APPARATUS THAT RECORDS AND/OR REPRODUCES OPTICAL INFORMATION STORAGE MEDIUM

METHOD FOR LOCKING ONTO A TRACK AFTER AN OPTICAL PICKUP OF AN OPTICAL DISC DRIVE PASSES THROUGH A DEFECTIVE SECTION OF AN OPTICAL DISC

Aberration correction device, aberration correction method and optical pickup

Aberration correction element, optical pickup and optical disc apparatus

READ/WRITE POSITION CONTROLLER FOR OPTICAL PICKUP

Method for setting layer-jump point on optical disc

Optical Pickup Control Circuit

Optical information recording reproduction device

Servo Branch of Optical Disc Drive Comprising a Switchable Diaphragm and a Device for Beam Deflection, and Methods for Measuring Beam Lanking and Spherical Aberration

Focus out detecting apparatus and optical disc apparatus using the same

Optical disc drive

Optical disc apparatus

Protection mechanism of an optical disc drive and method thereof

Optical disk apparatus

Visual Inspection Apparatus

OPTICAL DISC RECORDING PROTECTION

Apparatus and method for stabilizing operation of disc driver in section for setting mode conversion

Method and System for Generating a Spherical Aberration Signal Error

Optical pickup apparatus and liquid crystal optical element

Optical tape drive systems

Optical pick-up head, optical information apparatus, and optical information reproducing method

Optical pick-up head, optical information apparatus, and optical information reproducing method

Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit

Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit

Optical disc device

Optical disk apparatus and test writing method

Disk device

Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit

Vibration detection apparatus, hologram apparatus, vibration detection method for the vibration detection apparatus, and recording method for the hologram apparatus

Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit

Optical disc apparatus, optical pickup apparatus, and method for reducing astigmatism

Deformable mirror device, deformable mirror plate

Optical head unit and optical disc apparatus

Method for analyzing an abnormal region on an optical recording medium

Optical pick-up, method of generating aberration for compensation and optical information processing apparatus using the same

Optical disk drive control circuit

Using PRML read channel ADC for blank/defect and ripple detection

Optical disc servo that is robust for defects

Optical head having a position detection portion and optical disk device utilizing the optical head

Off-track relief processing method for optical disk apparatus, and optical disk apparatus

METHOD OF ADJUSTING SPHERICAL ABERRATION AND FOCUS OFFSET IN OPTICAL DISK APPARATUS AND OPTICAL DISK APPARATUS USING THE SAME

Servo control signal generation device and an optical disk device using the same

Optical head device and optical information apparatus using this optical head device, and computer, optical disk player, car navigation system, optical disk recorder and optical disk server using this optical information apparatus

Optical disc apparatus and back off control method for objective lens

Disc drive apparatus

Information recording and reproduction method and information recording and reproduction device

Method and device for playing optical discs and method for determining tracking quality

Wobble signal reproducing circuit

Method and circuit for protecting optical pickup actuator

Digital servo system with moving average filter

Apparatus for generating tracking signal

Optical disc recording device

Optical disk device

Method and device for protecting a preamplifier in reading signals on a defect disc

Method and device for protecting a PLL in reading signals on a defect disc

Method and device for protecting a slicer in reading signals on a defect disc

Method and device for protecting a servo in reading signals on a defect disc

Method for controlling spindle in optical disc device

Drive apparatus

Device for controlling the position of an optical lens

Optical disk writing and reading apparatus, and method thereof

Optical disk apparatus

Actuator position control method and corresponding apparatus

Optical disk device and optical component used therein

Optical pickup including aberration correction lens assembly

Dropout detection circuit and optical disc apparatus

Optical head device and method for correcting spherical aberration

White dot out detecting device

Defect detection circuit

Optical pickup device

Cleaning method and device for objective lens of optical disc device

Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit

Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit

Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit

Apparatus for processing data stored on a data carrier having some defects and method of method of processing data on such a disc

Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit

Optical disk device

Disc drive apparatus

Optical recording apparatus and method for searching data recording locations by controlling tracking level

Disc player and method of reproducing information on disc

Optical element, optical head, optical recording reproducing apparatus and optical recording/ reproducing method

Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method

Optical disc recording method and information recording and reproducing apparatus

Apparatus and method for stabilizing operation of disc driver in section for setting mode conversion

Unbalanced disc detection and reading speed control in disc reading apparatus

Optical disk reproducing device

Optical disk device for data defect detection and use

Optical element, optical head, optical recording reproducing apparatus and optical recording/ reproducing method

Optical pickup for detecting thickness variation of a recording medium, and/or compensating for spherical aberration caused by thickness variation of a recording medium

Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method

Optical disk tracking servo circuit enabled to compensate for non-continuous track segments or prolonged defect

Optical pickup apparatus including collimator lens with first lens group having negative power and being fixed and second lens group having positive power and being movable

Module for improving optical disc readability via dynamically adjusting optical focus position and method for the same

Optical pickup, optical information processing apparatus and optical information processing method

System and method for detecting and recovering from an off-format state in an optical disc drive

Detecting anomalies in a scanning signal

Apparatus for reproducing information recorded in optical recording medium, and computer product

Optical pick-up head, optical information apparatus, and optical information reproducing method

Playback apparatus, method, and recording medium for defect period processing and post-defect period processing

Optical information recording and reproducing apparatus

Optical head device, optical recording device, and optical recording method

Apparatus and method for compensating for defect of optical disc

Liquid crystal optical element and optical device

Optical disk system with improved playability

Method and apparatus for tracking servo control of an optical disc playback apparatus

Optical head device and optical information device using this and computer optical disk player car navigation system optical disk recorder and optical disk server using this optical information device

Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method

Optical device for reading information

Liquid crystal device and its manufacturing method

Optical pickup apparatus capable of compensating thickness deviation of optical recording media

Method and device for generating a stable power control signal

stability of a write control signal

Optical disk drive for writing a re-writable optical disk and method thereof

Focusing controller and method thereof for an optical disk drive

Focusing controller apparatus and method for an optical disk drive

Method and device for adjusting a control parameter of a servo of an optical drive

Optical disc apparatus and tracking control method and program for the optical disc apparatus

Spherical aberration corrector plate comprising two wedge-shaped plates enabled to relatively shift

Optical disk device

Focus control method of optical pick-up system and apparatus thereof

Recording and/or reproducing apparatus, disk manufacturing apparatus, recording and/or reproducing method, disk manufacturing method, and information recording medium using recording and/or reproducing unit blocks having different sizes in different areas

Optical head and optical disk apparatus

Servo control method and servo control circuit, and optical disk device having the same servo control circuit

Optical pickup apparatus having disk thickness deviation correction and method therefor

Optical disk apparatus and optical disk processing method

Method and apparatus for determining the cleanliness of a lens in an optical disc drive