Disk discrimination method and apparatus of optical disk system

INFORMATION RECORDING MEDIUM, INFORMATION REPRODUCING APPARATUS, AND INFORMATION RECORDING AND REPRODUCING APPARATUS

INFORMATION RECORDING MEDIUM, INFORMATION REPRODUCING APPARATUS, AND INFORMATION RECORDING AND REPRODUCING APPARATUS

Optical pickup device and information recording/reproducing apparatus

Optical pickup

Semiconductor laser apparatus

Optical disk device and optimal recording power determination method

Optical disc apparatus and tracking error signal selecting method

Optical disc apparatus

Objective lens and optical pickup apparatus for reproducing and/or recording information for at least two types of optical discs

Optical disc drive and objective lens for the same

Optical disk device with disk type recognition

Optical disk discriminating method and optical disk apparatus utilizing the same therein

Automatic write strategy calibration method for optical drive

Optical disk device

Optical pick-up apparatus for multi recording/reproducing

Objective lens unit and optical pickup device

Optical pickup device and optical disk drive using the same

Objective optical system and optical pickup apparatus

Semiconductor laser apparatus, optical pick-up and optical information apparatus

Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus

Compatible optical pickup and optical recording and/or reproducing apparatus employing the same

Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus

WRITE STRATEGY DIRECTORY AND METHOD FOR MAINTAINING THE SAME

Optical pickup apparatus

Apparatus and method for determining type of an optical disk

Optical pickup apparatus and information recording and reproducing apparatus

Optical pickup device

Optical disc and method of producing the same

Objective lens, optical head, optical system, and design method for objective lens

Objective lens unit, its manufacturing method and optical pick-up apparatus

Compatible optical pickup and an optical recording and/or reproducing apparatus employing a compatible optical pickup

Disc-driving apparatus and method for controlling the same

Disk apparatus

Optical disc drive

Single-sided triple layer optical disc

Optical disk recording and reproducing apparatus

Optical pickup and optical disc apparatus

Optical disc drive

Optical disc having tracking polarity information, and apparatuses and methods for recording and reproducing user data on the same

Optical disc apparatus

Optical pickup and optical information processing apparatus with light sources of three different wavelengths

Wobble signal reproducing circuit

Variable refractive surface

Optical pickup apparatus

Optical head and information recording/reproducing apparatus

Optical pickup and optical disk apparatus

Photodetector, diffraction grating, optical pickup and optical disc apparatus

Optical disc drive and method of judging disc type thereof

Optical pickup apparatus and optical information recording and/or reproducing apparatus

Optical disc apparatus

Optical pickup apparatus and optical information processing apparatus

Light receiving element circuit and optical disk drive

Optical disc drive and objective lens for the same

Optical pickup device and information processing apparatus incorporating the optical pickup

Optical head and disk reproducing apparatus

Methods and apparatus for marking media with collimated electromagnetic radiation beam

Optical pickup and optical disc apparatus

Optical disc device, optical pickup control method and optical disc discriminating method

Multifocal lens and method for manufacturing the same

Optical data storage medium

Method for designing an optical pickup

Laser converging apparatus, optical pickup device and optical disc recording/reproduction apparatus

Optical head and optical disc apparatus

ABERRATION CORRECTING METHOD

Diffraction grating, method of fabricating diffraction optical element, optical pickup device, and optical disk drive

Objective optical system and optical pickup apparatus

Optical disk medium recording and reproducing apparatus and method for discriminating optical disk medium type

Method for reproducing optical recording medium

Objective optical system and optical pickup apparatus

Liquid crystal lens element and optical head device

Flexible multipulse generator

Optical pickup device

Objective lens and optical information read/write device

Optical pickup device

Interface device for optical recording and/or reproducing apparatus

Polarizing element and optical system including polarizing element

Optical-path compensating device and optical pickup using the device

Optical disk apparatus and pickup unit

Optical recording/reproducing apparatus capable of recording/reproducing information onto/from various types of optical recording media of different recording densities and different thicknesses

Variable shape lens

Optical pickup unit and information recording/reproducing apparatus

Diffraction grating, method of fabricating diffraction optical element, optical pickup device, and optical disk drive

Optical head unit and optical disc apparatus

Objective lens and optical pickup apparatus using the same

Optical pick-up actuator and optical recording and/or reproducing apparatus including the optical pick-up actuator

Optical pickup device

Optical reproducing apparatus capable of using laser diode of two wavelengths

Optical pickup apparatus and optical element

Optical pickup apparatus and optical element

Photo detecting element for monitoring optical power and optical pick up apparatus thereof

Semiconductor laser apparatus and optical pickup apparatus

Apparatus and method for recording data on optical disc

High frequency modulation of a light beam in optical recording

Method and device for measuring the tilt of an optical disc

Optical pickup apparatus

Optical head and information recording/reproducing apparatus

Optical head and optical disc apparatus

Optical pickup actuator and optical recording/reproducing apparatus having the same

Optical head and information recording/reproducing apparatus

Optical head and information recording/reproducing apparatus

Optical pickup lens and optical pickup apparatus

Fluid filled devices

Semiconductor laser device

Object lens and optical pickup device incorporating same

Liquid crystal optical element, optical device, and aperture control method

Method for determining kind of optical recording medium

Optical disk device and optical disk discriminating method

Optical pickup apparatus

Optical pickup device

Optical pickup apparatus and controlling method thereof

Optical pickup actuator and optical recording and/or reproducing apparatus having the same

Semiconductor laser apparatus

Information recording medium, apparatus for recording and/or reproducing data on and/or from information recording medium, method of recording and/or reproducing data on and/or from information recording medium, and computer-readable recording medium storing program for executing the method

Optical pickup

Hybrid disk and method of writing data to and/or reading data from the hybrid disk

Optical disk apparatus compatible with different types of mediums adapted for different wavelengths

Optical head and optical disc apparatus

Optical disc recorder laser power control

Optical semiconductor device

Optical head and optical disk apparatus

Optical pickup device and optical disk drive using the same

Laser diode driver, method of driving the laser diode driver, and method of initializing an optical recording and reproducing apparatus

Method For Determining A Write Type Of A Disc

Focus servo apparatus

Photo diode ic

Objective lens, optical pickup apparatus and optical information recording and/or reproducing apparatus

Optical disk drive

Optical pickup apparatus and objective optical unit

Optical pickup for an optical recording and/or reproducing apparatus including an actuator forming a predetermined angel with respect to the pickup base

Method of and apparatus for recording data on optical recording medium

Optical pickup driving apparatus and optical pickup beam spot positioning method

Optical recording medium driving device

Optical disk device and optical disk determination method

Optical disk drive unit

Objective lens, optical pickup, and optical information processing apparatus

Optical disk, optical disk apparatus, and optical disk processing method

Diffraction element and optical head device

Optical pick-up apparatus and optical disk apparatus incorporating the optical pick-up apparatus

Optical disk differentiating method and electronic device thereof

Diffraction grating, optical pickup device, and optical disk apparatus

METHOD OF SELECTING LASER BEAM IN AN OPTICAL DISK DRIVE

Optical pickup and optical information reproducing device

Optical head and optical disk device

Diffraction grating, light-receiving element, and optical head and optical recording/reproducing apparatus utilizing them

Apparatus and method for detecting beam power in optical drive

Objective lens unit and optical pickup device

Optical pickup unit and information recording/reproduction apparatus

Recording medium, method and apparatus for determining type information of the recording medium, and method and apparatus for recording/reproducing data in/from the recording medium

Disk having unique code for identifying its type for optical disk player and method for discriminating types thereof

Objective lens and optical system for optical pick-up

Optical pickup which is compatible with multiple types of media

Disc drive apparatus, and method for recognizing cd and dvd

Numerical aperture controlling filter and a method for manufacturing the same

Optical system, optical pickup apparatus, optical disc reproducing and/or recording apparatus and relay lens

Optical unit and optical pickup apparatus

Multilayer dual optical disk

Data line switching circuit for optical pickup device

Objective, optical pickup apparatus and optical information recording and/or reproducing apparatus

Diffractive element, method of manufacturing the same, optical pickup device, and optical disc apparatus

Metal alloys for the reflective or the semi-reflective layer of an optical storage medium

Optical pickup apparatus

Information recording/reproduction apparatus

DVD recording and reproducing system

Method of production of semiconductor light emission device and method of production of light emission apparatus

Objective lens and optical pickup device

Recording medium, method and apparatus for determining type information of the recording medium, and method and apparatus for recording/reproducing data in/from the recording medium

Optical pickup apparatus

Optical pickup which is compatible with multiple types of media

Optical pickup apparatus with bilaterally divided light beams

Optical scanning device

Method and apparatus for determining type information of recording medium, and method and apparatus for recording/reproducing data in/from the recording medium

Optical pick-up device

Optical pickup apparatus which is compatible with multiple types of media

Diffraction element and optical pick-up apparatus having the same

Diffraction element and optical pick-up apparatus having the same

Optical pickup device and focusing control method of the same

Converging optical apparatus, optical pickup and optical disc apparatus

Diffraction element and optical pick-up apparatus having the same

Laser diode drive circuit and amplifying circuit for optical disc recording and/or reproducing apparatus

Optical element, optical pickup unit, and optical disk drive unit

Objective lens for optical disk recording/reproducing device comprising variable lens formed by the interface of two immiscible fluids

Label information storage

Achromatic polarization devices for optical disc pickup heads

High-frequency superimposing method and optical disk apparatus using it

System and method for multi-laser write operations to an optical medium

Diffractive optical element, objective lens module, optical pickup, and optical information recording and reproducing apparatus

Optical reading/writing apparatus and method

Optical pickup and optical disk apparatus

Optical pickup apparatus for recording or reproducing information for an optical information recording medium and objective lens for optical pickup apparatus

Optical data write/reproduce device for determining optimum write strategy and writing data according to optimum writ strategy, and method thereof

Information storage medium having flexibility for allocating an area, recording method, reproducing method and apparatus thereof

Optical pickup device

Optical pick-up apparatus and optical disk apparatus

Optical pickup actuator having aberration correcting mechanism and method of assembling the same

Optical pickup actuator and optical recording and/or reproducing apparatus

Optical pickup actuator and optical recording/reproducing apparatus

Optical head capable of recording and reproducing information on any one of a plurality of kinds of optical information recording medium and optical information recording and reproducing apparatus using the same

Optical disk apparatus

Recording apparatus for generating write pulse control signals suitable for various types of optical recording media

Optical disc apparatus

Optical disk device and method for controlling the same

Optical pickup device

Optical disc, optical disc apparatus, optical disk reproducing method, and digital work publication

Optical pickup device with phase shift mirror

Optical pickup head and information recording and/or reproducing device incorporating same

Optical pickup device and optical element

Optical pickup device with variable refractive index

Design method of optical element and optical element through which a plurality of light beams having different design wavelengths pass

Ultra-high data density optical media system

Method and recording device capable of selecting a write strategy applied to an optical disc

Disk reproduction apparatus

Birefringent optical component

Optical element and optical pickup device used therewith

Objective optical system for optical recording media and optical pickup device using it

Optical pick-up apparatus and method for multi-optical disk type recording/reproducing

Optical pickup device

Optical head device and optical recording and reproducing apparatus

Optical pickup apparatus employing a grating and a hologram that generate multiple beams detected by a photodetector

Chromatic aberration-correcting element and optical pickup device using the same

Optical pickup head and information recording and/or reproducing device incorporating same

Method of determining type of optical disc, and data recording and/or reproducing apparatus therefor

Method of detecting focus error signal of optical head and optical head and optical recording/reproducing apparatus utilizing the same

Optical disk apparatus and method for tracking thereof

Objective optical system for optical recording media and optical pickup device using it

Chromatic aberration-correcting optical system and optical pickup device using the same

Optical information processing apparatus, optical pick-up device and optical recording disc system

Diffractive optical element and optical pickup device using the same

Optical pick-up apparatus

Objective optical system and optical pick up apparatus

Objective lens, optical pickup apparatus and optical disc driving apparatus

Aberration compensation element, and optical system and optical device provided with the same

Method of detecting focus error signal of optical head and optical recording/reproducing apparatus utilizing the same

Multi-layer optical disc format

Optical pickup device and optical disk device having a diffraction element so that a first light beam and a second light beam comport with each other

Optical disc apparatus with adjustable constraint length PRML

Lens protector and optical pick-up

Liquid crystal component

Optical pickup device

Information reproduction apparatus

Compatible optical pickup using light sources following a common optical path

Recording method and optical disc apparatus

Pickup lens with phase compensator and optical pickup apparatus using the same

Optical pickup apparatus and optical disk apparatus

Objective lens and optical pickup apparatus

Objective optical system for optical recording media, optical pickup optical system, and optical pickup device using the optical pickup optical system

Optical pickup device

Optical pickup

Wavelength plate, optical element, and optical pickup

Optical pickup head compatible with multiple optical recording media

Optical disk device and startup method of optical disk

Disc playback apparatus and method

Optical pickup and disc drive apparatus

Optical pickup head and information recording and/or reproducing apparatus incorporating same

Objective optical system for optical recording media and optical pickup device using it

Objective optical system for optical recording media and optical pickup device using the objective optical system

Optical pickup apparatus and objective optical element

Objective optical element and optical pickup apparatus

Optical pickup and optical disk apparatus

Light-emission and reception module for optical pickup and optical pickup

Optical head with light sources of different wavelength

Light emitting device and optical device using the same

Method for manufacturing optical elements

Objective lens and scanning device using such an objective lens

Optical pickup and optical disk drive using same

Method and apparatus of identifying disc types

Semiconductor laser array and manufacturing method for semiconductor laser array

Recording apparatus and method, and recording medium and program used therewith

Lens unit for optical pick-up apparatus and optical pick-up apparatus

Objective optical element, optical pickup apparatus and optical disc driving apparatus

Optical pickup device

Multifunctional optical device

Optical pickup unit comprising an optical pickup actuator wobblably held in an optical base

Object lens unit and optical pickup device employing the unit

Semiconductor laser apparatus

Optical scanning device

Information disc recording/playback apparatus, and vibration detection method for information disc recording/playback apparatus

Hologram laser unit and optical pickup apparatus

Controllable two layer birefringent optical component

Method for manufacturing optical disk media of high-to-low and low-to-high reflectance types

Objective lens, light converging optical system, optical pickup apparatus, and recording/reproducing apparatus

Pickup module with coating layer

Optical scanning device

Optical pickup using an optical phase plate and which is compatible with optical recording media of different types

Polyethersulfone compositions

Optical device for monitor and optical pickup apparatus

Aberration correction apparatus, and control apparatus, control method and control program of optical pickup

Optical pickup and information processing device

Information disc recording/playback apparatus, and vibration detection method for information disc recording/playback apparatus

Information disc recording/playback apparatus and method for counting pulses and controlling a rotation speed of an information disc

Information disc recording/playback apparatus and method for counting pulses and controlling a rotation speed of an information disc

Optical pickup device, optical disk apparatus, and light-receiving unit

Optical pickup head and information recording and/or reproducing device incorporating same

Optical pickup device

Recording medium, method for recording control information in the recording medium, and method and apparatus for recording/reproducing data in/from the recording medium using the same

Optical pickup device and optical disk device

Evaluation disc

Optical pickup device and optical disk device

Optical disk and optical disk device

Optical disc apparatus