Composite data recovery procedure

Optical disc apparatus controlling irradiation position based on cross-correlation value between reproduction signal and decoded signal

Servo Processor Receiving Photodetector Signals

Recording and reproducing apparatus

Hologram reproducing apparatus and hologram reproducing method

Optical disc device and spherical aberration error signal detection method

Information recording and playback device

Servo processor receiving photodetector signals

Hologram recording and reproducing device, and angular multiplexing recording and reproducing method

Optical information recording and reproducing apparatus and optical information recording and reproducing method

Optical recording and playback apparatus

Optical disk information device and information processing device

Optical recording medium drive device, tracking error detection method

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

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

Optical disc device and method for driving the same

Optical information processing apparatus and optical information processing method, and adjustment device, adjustment method, and adjustment program for optical information processing apparatus

Optical head device and optical disc device

Position control apparatus and position control method

Methods for balancing a disk drive

Servo processor receiving photodetector signals

Method and apparatus for generating tracking error signal and optical information storage system including the apparatus

Optical disk device

Servo processor receiving photodetector signals

OPTICAL PICKUP APPARATUS

Optical disk apparatus

Optical disk apparatus

OPTICAL DISK DEVICE AND SEMICONDUCTOR DEVICE

Optical disc apparatus

Optical head using beam dividing element

METHOD FOR DETECTING OBLIQUITY OF OPTICAL DISC DRIVE BASED ON FUNCTION BETWEEN OBLIQUITY AND CENTRAL ERROR SIGNAL BIAS

Recording apparatus

Optical head device and optical disc device

OPTICAL DISC APPARATUS AND DEFOCUS CORRECTING METHOD

Recording device and spot position control method

Optical disc apparatus, focus control method and control program

OPTICAL PICKUP

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

APPARATUS HAVING SWITCHABLE SERVO GAINS AND OFFSETS FOR OPTICAL DISK DRIVE AND METHOD THEREOF

Optical information processing method and optical information processing apparatus

Optical disk apparatus

Optical disk drive

Diffraction grating, optical pickup device and optical disc apparatus

OPTICAL HEAD DEVICE, OPTICAL INFORMATION PROCESSING DEVICE, AND SIGNAL DETECTION METHOD

OPTICAL DISC APPARATUS AND CONTROL METHOD IN THE SAME

Data storage system and method for calibrating same

Optical disc apparatus and defocus correcting method

Optical head device and optical disc apparatus

OPTICAL HEAD DEVICE, OPTICAL INFORMATION PROCESSING APPARATUS, AND SIGNAL DETECTING METHOD

FOCUS POSITION CONTROL APPARATUS, OPTICAL DISC APPARATUS USING THE SAME, AND FOCUS POSITION CONTROL METHOD

Optical information recording and/or reproducing apparatus, optical information recording and/or reproducing method, optical information recording medium, and solid immersion lens

OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS USING THE SAME

Servo control using digital signal processing for optical disk drive

Optical disk apparatus

Optical pickup device and optical disk device using the same

WRITING METHOD FOR MULTILAYER OPTICAL DISC

METHOD FOR CALIBRATING OFFSET OF MICRO ACTUATOR

OPTICAL DISC DRIVE

Tracking control device, tracking control method, and optical disc apparatus

Optical pickup and optical disk apparatus

Optical pickup device and optical disc device

Light spot position control apparatus and light spot position control method

Extraction optical system and optical head device including the same

DEVICE AND METHOD FOR SCANNING AN OPTICAL RECORDING MEDIUM AND OPTICAL RECORDING MEDIUM

METHOD AND APPARATUS FOR PERFORMING LAYER CHANGES FOR AN OPTICAL DISK DRIVE

Optical disc signal processing device, optical disc signal processing method, optical disc reproduction and recording device, and optical disc reproduction and recording method

Optical pickup device and optical disc device

Spherical aberration compensation adjustment

INFORMATION REPRODUCING APPARATUS, SERVO ADJUSTING METHOD, AND THE LIKE

Information Recording/Reproducing Apparatus and Track Offset Adjusting Method of Information Recording Medium

Optical tape system

Optical tape embossing drum and optical tape embossing drum shim

Optical pickup device and optical disc device with offset compensation

Optical tape test system

Data storage system and linear tape

Data storage system and method for operating a servo system

Optical Disc Apparatus and Focus Offset Control Method

Optical disk device

TRACK WRITING WITH RADIAL ERROR OFFSET CORRECTION

Optical pickup apparatus and optical disc apparatus

Tracking error signal detection apparatus and optical disc apparatus

Optimizing focus point for optical disc

Storage system and optical pick-up unit

Optical disk device

Optical Disc Apparatus and Focus Offset Setting Method Thereof

Optical drive device and amplification rate determining method

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

Method and system for controlling optical pick-up head locked to track center of optical storage medium

Recording/reproducing apparatus and tracking control method

Optical pickup apparatus

METHOD FOR MEASURING AND OPTIMIZING RADIAL TO VERTICAL CROSSTALK

Optical disk device

OPTIMIZING CALIBRATION SYSTEM

Optical disc device

PICKUP DEVICE

Optical disc device

RECORDING DEVICE AND RADIAL OFFSET CALIBRATION METHOD

Optical pickup apparatus and optical disc apparatus with a single beam system

Apparatus having switchable servo gains and offsets for optical disk drive and method thereof

OPTICAL DISC DEVICE, TRACKING ERROR SIGNAL GENERATING CIRCUIT, TRACKING ERROR SIGNAL CORRECTING METHOD, AND PROGRAM

Average servo control method and system, and target level determination method applied in thereof

Method and apparatus for compensating astigmatism in an optical storage system

Optical pickup and optical data processing device using the same

OPTICAL DISC APPARATUS AND TRACKING CONTROL METHOD

OPTICAL DISK APPARATUS AND SERVO CONTROL METHOD

Optical pickup apparatus, reproducing apparatus, recording apparatus, and tracking error signal generation method

Phase error detection apparatus

Diffraction grating, optical pickup device and optical disc apparatus

OPTICAL PICKUP DEVICE AND PHOTODETECTOR

Optical pickup device and optical disc apparatus

PARAMETER ADJUSTING METHOD AND DATA RECORDING/REPRODUCING DEVICE

Optical disc and optical disc device

OPTICAL DISC REPRODUCING APPARATUS

Optical disk apparatus, signal processing semiconductor integrated circuit constituting the same, and operation method

Method and apparatus for adjusting focus offset based on target condition

Optical pickup device

Optical disk apparatus, control method, and program

Optical axis shift correcting device and method, and computer program

OPTICAL DISC APPARATUS AND LENS SHIFT CORRECTION METHOD OF OPTICAL DISC APPARATUS

Recording device and recording method

Optical pickup apparatus and drive apparatus having the same

OPTICAL DISC APPARATUS AND DETERMINATION METHOD OF OPTIMUM FOCUS POSITION

Arithmetic processing circuit unit and disc device

OPTICAL HEAD DEVICE AND OPTICAL INFORMATION RECORDING OR REPRODUCING APPARATUS EQUIPPED WITH SAME

Optical disc apparatus, crosstalk correction method and integrated circuit

Method for calibrating a spherical aberration compensation level in an optical drive

Aberration Detector and Optical Pickup With Same

Optical disk apparatus

OPTICAL DISC APPARATUS, CONTROLLER OF OPTICAL DISC APPARATUS, AND CONTROL METHOD OF OPTICAL DISC APPARATUS

Apparatus and method for calibrating focus balance in an optical disk drive

Optical disc device and converging position correction method

Optical disc apparatus and offset adjustment method thereof

OPTICAL DISC APPARATUS AND OPTICAL DISC RECORDING AND REPRODUCTION METHOD

Focusing control method for reading/writing optical disc

OPTICAL DISC APPARATUS AND OPTICAL DISC APPARATUS CONTROL METHOD

Optical pickup device

Optical disk medium and tracking method

Optical disk apparatus with approximate focus control of laser beam

Calibration method for determining servo parameters for accessing an optical disc

OPTICAL DISC APPARATUS AND FOCUS CONTROL METHOD

Optical head device and diffractive element, optical information apparatus, computer, disc player, car navigation system, optical disc recorder, and vehicle

System and method for calibrating recording track offset of optical storage device

Method and system for calibrating recording track offset of optical storage device

Optical recording medium recording and reproducing apparatus and tracking control method

Tracking control method for reading/writing optical disk

Clock Signal Generation Device, Semiconductor Integrated Circuit, and Data Reproduction Method

Device and method for scanning an optical recording medium and optical recording medium

Apparatus and method to write/reproduce data to/from optical disc

Focal offset recording system and method

FOCUS SERVO METHOD USED IN OPTICAL DISC DRIVE

Optical disc apparatus

Method for selecting focus servo process

FOCUSING CONTROL METHOD FOR READING/WRITING OPTICAL DISC

Optical pickup device

METHOD OF IMPROVING DEFECT COUNTERMEASURE OF APPARATUS FOR REPRODUCING OPTICAL INFORMATION STORAGE MEDIUM

OPTICAL DISK DEVICE AND CONTROL METHOD THEREOF

DISC DRIVE AND METHOD FOR DETERMINING WRITE PARAMETERS

Information Reproduction Apparatus, Information Reproduction Method, Information Reproduction Program, And Recording Medium Having Information Reproduction Program Recorded On It

Optical device and optical disc apparatus utilizing the optical device

Optical disc apparatus and method of focus balance adjustment

Apparatus and method for controlling tracking error balance in optical disc apparatus

Optical disc apparatus

OPTICAL DISK APPARATUS AND RECORDING METHOD OF THE SAME

Optical drive servo with a servo processor receiving photodetector signals

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

Optical pickup apparatus and optical disc apparatus using same

Method for calibrating a tracking error signal of an optical disk drive

Method and Device for Focus Management When Recording on Optical Storage Media

Optical pick up apparatus with a single beam system and having a diffraction grating

Optical pick up apparatus with a single beam system and having a diffraction grating

Optical pickup apparatus and optical disc apparatus using same

Optical pickup apparatus and optical disc apparatus using same

Optical state recognizer, information processor, and optical state recognizing method

FOCUS CONTROL METHOD AND OPTICAL DISC DRIVE

Optical Disc Apparatus

Optical recording medium driving device and spherical aberration adjustment method

Optical pickup

Method of adjusting spherical aberration and focus offset and information recording/reproduction apparatus using the same

Optical Disc Recording/Reproduction Device

Optical disc drive and control method thereof

OPTICAL DISK DRIVE AND FOCUS OFFSET CONTROL METHOD

Optical Pickup Control Circuit

Optical disk drive and pickup device

METHOD OF CORRECTING CHROMATIC ABERRATION GENERATED DURING CONVERSION FROM REPRODUCING MODE TO RECORDING MODE, AND RECORDING METHOD AND RECORDING AND REPRODUCING APPARATUS ADOPTING THE CORRECTION METHOD

Optical disk apparatus and tracking method

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

Optical Disc Device and Optical Disc Semiconductor

Optimizing focus point for optical disc

APPARATUS HAVING SWITCHABLE SERVO GAINS AND OFFSETS FOR OPTICAL DISK DRIVE AND METHOD THEREOF

OPTICAL INFORMATION RECORDING/REPRODUCTION APPARATUS

Apparatus and methods for light spot servo signal detection

Apparatus for optical pick-up

Data slice generation method and apparatus for optical disk drive

Method for Improving Robustness of Optical Disk Readout

Optical recording apparatus

Optical tape drive systems

Beam spot position control device and beam spot position control method, and optical disk recording and reproducing device

Optical disk apparatus for carrying out a defocus regulation

Optical disk apparatus

Optical Disc Recording/Reproduction 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

Optical device and optical pickup 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

Optical recording/reproducing apparatus, optical pickup, and tracking error detecting method

Reproducing apparatus, and method of adjusting spherical aberration correction and focus bias

OPTICAL DISC RECORDING APPARATUS CAPABLE OF MARKING LABEL SIDE OF OPTICAL DISC

Optical pickup and optical disc apparatus including a multi-section diffractive element

Optical disc drive and method for controlling the position of a lens

Track jumping scan control device and track searching device

Optical pickup, optical recording and reproducing apparatus and tracking error signal detecting method

Method and apparatus for reproducing information from recording medium

Method 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

Evaluation and adjustment methods in optical disc apparatus, and optical disc apparatus

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

METHOD AND APPARATUS OF CALIBRATING PARAMETERS UTILIZED FOR DETERMINING SERVO SIGNALS

OPTICAL PICKUP APPARATUS EQUIPPED WITH OPTICAL SYSTEM CORRECTING SPHERICAL ABERRATION, AND INFORMATION RECORDING AND REPRODUCTION APPARATUS USING THE SAME

Optical pickup

Signal processing method and signal processing apparatus

Method and device for adjusting an amplification for producing a focus error signal

Optical pickup apparatus and information recording and reproducing apparatus

Disc-driving apparatus and method for controlling the same

Optical pickup, information processing apparatus and signal processing method

Optical disc apparatus

Optical head and information recording/reproducing apparatus

Light receiving element circuit and optical disk drive

Optical disc having focus offset area

Disc driving apparatus and information readout method

Optical element, optical pickup device, and optical information recording and/or reproducing apparatus

Control circuit of optical storage device and method thereof

Demodulation of a focusing error signal during a focus search for a lens focusing control in an optical disc system

Focal control adjusting method and optical disk apparatus

Optical disk apparatus with approximate focus control of laser beam

Focus control for optical scanner

METHODS OF CALIBRATING SERVO SIGNAL BIAS FOR OPTICAL DISC

Control of stepper motor in an optical disc

Optical disk apparatus and an optical disk playback method

Optical head and optical disc apparatus

Disc drive apparatus

Optical disk recording/reproducing apparatus

Optical disc recording/reproducing apparatus

Optical disc having focus offset area

Optical disk apparatus with phase difference offset

Optical pickup device and focusing control method of the same

Calibration of a focus offset in an optical drive

Optical information recording medium manfacturing method therefor, manufacturing apparatus therefor, and optical information recording and reproducing apparatus

Optical storage device, recording method of optical storage medium and program

Information recording medium and information recording 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

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

Data reproducer

Servo system, apparatus comprising a servo system, sigma delta modulator, and integrated circuit comprising a sigma delta modulator

Method and apparatus for definition of signal for record medium

Optical disk apparatus and method of controlling optical disk apparatus

Optical disc drive apparatus and method

Optical head

APPARATUS AND METHOD FOR GENERATING A TRACKING ERROR SIGNAL IN AN OPTICAL DISC DRIVE

Information recording apparatus and information recording medium

Method for locating focus point on reflecting layer of optical disc

Disc drive calibration with forced track traversing signal

Servo error signal generation circuit and servo error signal generation method

Method for determining a compensation value for tracking error signal

Method to reduce the offset component of tracking error in an optical disc player

Optical disc reading and reproducing apparatus

Optical disc reading and reproducing apparatus

Optical reproducing method for optical medium with aligned prepit portion

Optical reproducing method for optical medium with aligned prepit portion

Optical reproducing method for optical medium with aligned prepit portion

Optical reproducing method for optical medium with aligned prepit portion

Tracking system with dual differential signals with fraction of A/C signal added back to D/C signal

System and method for measuring signal deviation used in an optical recording/reproducing apparatus

Optical disc reproduction device and tracking control method applied to an optical disc reproduction device

Disc reproduction device

Optical pickup

Optical reproducing method for optical medium with aligned prepit portion

Optical reproducing method for optical medium with aligned prepit portion

Optical reproducing method for optical medium with aligned prepit portion

Optical reproducing method for optical medium with aligned prepit portion

Optical reproducing method for optical medium with aligned prepit portion

Optical reproducing method for optical medium with aligned prepit portion

Optical reproducing method for optical medium with aligned prepit portion

Optical reproducing method for optical medium with aligned prepit portion

Optical reproducing method for optical medium with aligned prepit portion

Optical recording method using land/groove recording

Optical recording method using land/groove recording

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

Method and device for correcting optical path deviation of an optical pickup in an optical recording system

Tracking balance adjustment device

Optical disk device, loop gain setting method, and loop gain setting program

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

Output adjustment method for lens position sensor of optical disk device and optical disk device thereof

Optical pickup apparatus having optical detection area for compensating for tracking error offset

Optical disk recording and reproducing apparatus

Optimized tracking method

Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus

Optical disc apparatus and its control method

Method and apparatus for recording/reproducing information with respect to optical recording medium