198061 ⎘
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 for track following only Differential phase difference systems
Optical recording medium drive device, tracking error detection method
#2Servo control device and optical disc device
#3Optical pickup apparatus
#4Optical information processing device and tracking control method thereof for use with grooveless multilayer optical disc
#5Recording adjusting method, information recording and reproducing device, and information recording medium
#6Optical drive
#7Semiconductor integrated circuit and optical disk device having the same
#8STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD
#9Optical pickup device and optical disc apparatus using same
#10Optical pickup
#11Optical pickup and optical disc apparatus
#12Optical disk drive and method for determining type of a blu-ray disk
#13Optical Disk Drive and Method for Performing Layer Jumps
#14TRACKING SIGNAL GENERATION DEVICE AND METHOD, REPRODUCTION DEVICE AND METHOD, AND COMPUTER PROGRAM
#15Optical drive device
#16OPTICAL HEAD DEVICE, OPTICAL INFORMATION PROCESSING APPARATUS, AND SIGNAL DETECTING METHOD
#17Optical drive apparatus
#18OPTICAL HEAD APPARATUS, HOLOGRAPHIC OPTICAL DEVICE, OPTICAL INTEGRATED DEVICE, OPTICAL INFORMATION PROCESSING APPARATUS, AND SIGNAL DETECTION METHOD
#19OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS USING THE SAME
#20Optical pickup device and optical disk device using the same
#21Optical disc apparatus and optical disc reproducing method
#22Optical pick-up and optical information recording and reproducing apparatus
#23Optical disc with pre-recorded and recordable regions and methods of forming the disc
#24Optical disk device, method of controlling optical head, and control device for optical head
#25OPTICAL PICKUP DEVICE AND INFORMATION RECORDING/REPRODUCTION DEVICE
#26INTEGRATED CIRCUIT, OPTICAL DISC SYSTEM AND TRACKING ERROR SIGNAL GENERATION METHOD
#27OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS USING THE SAME
#28Record medium, optical disk unit using it, and recording method
#29Optical head apparatus and optical disc apparatus
#30OPTICAL HEAD DEVICE AND OPTICAL INFORMATION RECORDING OR REPRODUCING DEVICE
#31Tracking error signal detection apparatus and optical disc apparatus
#32Tracking apparatus for optical information reproduction apparatus
#33METHOD FOR RADIAL TRACKING IN AN OPTICAL DISC DRIVE
#34Compatible optical recording medium
#35Optical disc apparatus including a divided photodetector
#36OPTIMIZING CALIBRATION SYSTEM
#37Optical pickup apparatus and optical disc apparatus with a single beam system
#38OPTICAL RECORDING METHOD, OPTICAL RECORDING APPARATUS, OPTICAL RECORDING MEDIUM, AND OPTICAL RECORDING AND REPRODUCING METHOD
#39Optical head device and optical information reproducing device
#40Phase error detection apparatus
#41Apparatus for and method of detecting tracking error signals
#42Storage medium, reproducing method, and recording method
#43Optical pickup
#44Optical head apparatus and optical information recording/reproducing apparatus
#45Tracking error signal detection device and optical disc apparatus
#46OPTICAL PICK-UP AND DISC APPARATUS HAVING THE SAME
#47Optical pickup apparatus
#48Optical disc device and method for discriminating different kinds of optical discs
#49Tracking error detection method and optical disc reproduction apparatus using the same
#50SIGNAL PROCESSING DEVICE AND OPTICAL DISC PLAYBACK APPARATUS
#51Optical disc center error amplitude calibration
#52Optical head and optical disc device
#53Optical pickup apparatus and optical disc apparatus using same
#54Optical pick up apparatus with a single beam system and having a diffraction grating
#55Optical pick up apparatus with a single beam system and having a diffraction grating
#56Optical pickup apparatus and optical disc apparatus using same
#57Optical pickup apparatus and optical disc apparatus using same
#58OPTICAL INFORMATION STORAGE MEDIUM
#59OPTICAL INFORMATION MEDIUM METHOD
#60Method of transferring data with respect to an optical information medium having a lead-in area
#61OPTICAL INFORMATION STORAGE MEDIUM
#62OPTICAL INFORMATION STORAGE MEDIUM
#63OPTICAL INFORMATION MEDIUM METHOD
#64OPTICAL INFORMATION MEDIUM METHOD
#65OPTICAL INFORMATION STORAGE MEDIUM
#66OPTICAL INFORMATION STORAGE MEDIUM
#67OPTICAL INFORMATION MEDIUM METHOD
#68Photodetector capable of correctly carrying out phase adjustment
#69OPTICAL INFORMATION STORAGE MEDIUM
#70OPTICAL INFORMATION MEDIUM METHOD
#71OPTICAL INFORMATION MEDIUM METHOD
#72High-density read-only optical disc, and optical disc apparatus and method using the same
#73APPARATUS AND METHOD FOR GENERATING TRACKING ERROR SIGNAL
#74Phase difference detection apparatus, phase difference detection method, reproduction apparatus and tracking controlling method
#75Method of transferring data with respect to an optical information storage medium having different track pitches
#76Optical disk drive and pickup device
#77Optical disc device and optical pickup
#78OPTICAL INFORMATION STORAGE MEDIUM
#79Optical Head Apparatus and Optical Information Recording/Reproducing Apparatus With the Same
#80Optical storage apparatus, preamplifier and method of generating tracking error signal thereof
#81Method for Improving Robustness of Optical Disk Readout
#82Tracking Control Apparatus And Method, And Signal Processing Apparatus
#83Optical disc apparatus, tracking control method, and integrated circuit
#84OPTICAL DISK APPARATUS AND DISK DISCRIMINATION METHOD
#85Optical disk drive
#86Multilevel nano-structure optical media with oriented tracking marks
#87Apparatus for radial tracking in an optical disc drive using tracking an error signal derived from wobble-induced signal components and/or data-induced signal components of a detector output
#88Method of identifying a type of an optical disc and the device therefor
#89Tracking error signal generation device and tracking error signal generation method
#90Optical pickup and optical information apparatus
#91Method and apparatus for writing optically readable data onto an optical data
#92Differential phase detector
#93Apparatus for generating tracking error signals
#94Optical disc apparatus and tracking error signal selecting method
#95Optical disc apparatus
#96Optical head unit and optical disc apparatus
#97Apparatus and method for detecting tracking error signal using multiple phase clocks
#98Light receiving element circuit and optical disk drive
#99Method and related apparatus for deriving a tracking error signal
#100Optical head and optical disc apparatus
#101Apparatus for generating tracking signal
#102Method and related apparatus for deriving a tracking error signal
#103Apparatus for generating tracking error signals
#104Method and related apparatus for deriving a tracking error signal
#105Optical disk apparatus and pickup unit
#106OPTICAL STORAGE DEVICE AND METHOD OF GENERATING TRACKING ERROR SIGNAL THEREIN
#107Storage medium, reproducing method, and recording method
#108Tracking error detection and correction methods and apparatus
#109Photo diode ic
#110Optical disk drive and correcting method for differential push-pull tracking error signals of the optical disk drive
#111Optical disk apparatus and photodetection signal processing method
#112Optical pickup device
#113Demodulation of tracking error signal to obtain lens position for lens motion control in an optical disc system
#114Radial control method for a device for reproducing information of an optical disk, and reproduction device for carrying out said method
#115Optical disc center error amplitude calibration
#116Method of transferring data with respect to optical information storage medium having different track pitches
#117Apparatus and related method for generating a tracking error signal in an optical disc drive
#118Method of improving readability in optical drives
#119Apparatus for generating tracking error signal in optical disc drive
#120Apparatus and method for generating a tracking error signal in an optical disc drive
#121APPARATUS AND METHOD FOR GENERATING A TRACKING ERROR SIGNAL IN AN OPTICAL DISC DRIVE
#122Method for determining a compensation value for tracking error signal
#123Phase difference detection circuit and optical disk device
#124Tracking error detector
#125Optical disc reproduction device and tracking control method applied to an optical disc reproduction device
#126Optical disk recording and playback apparatus and signal detection method utilizing a differential push-pull method and a phase difference method
#127Optical disc apparatus and its control method
#128Optical reproducing apparatus
#129Method and apparatus for optical head and optical information reproducing
#130Optical pickup
#131Optical disk device and phase difference detector
#132Devices and methods to improve tracking error signals for optic storage systems
#133High-density read-only optical disc, and optical disc apparatus and method using the same
#134Method and apparatus to generate tracking error signal, optical storage drive using the same, and lead-in control method for the optical storage drive
#135Optical pick-up apparatus
#136Method and circuit for generating a tracking error signal using differential phase detection
#137Optical pick-up, optical disk apparatus and information processing apparatus
#138Optical pickup moving unit, optical disk apparatus, and method of manufacturing optical disk apparatus