Patents
Patents for G11B 7 - 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 (102,715)
05/2001
05/01/2001US6226240 Method and apparatus for reproducing data from a recording medium accounting for differences in track sizes
05/01/2001US6226239 Optical information recording and reproducing apparatus for multiple layer recording medium
05/01/2001US6226238 Optical disc master recording device
05/01/2001US6226236 Information data transfer system
05/01/2001US6226233 Magneto-optical system utilizing MSR media
05/01/2001US6226109 Diffractive security device on compact discs
05/01/2001US6225024 Information recording medium
05/01/2001US6225023 Sulfonamide compound and method for its production, metal chelate compound employing the sulfonamide compound, and optical recording medium employing the metal chelate compound
05/01/2001US6225022 Optical recording medium and recording method using the same
05/01/2001US6224960 Phase-change recording medium for write once applications
05/01/2001US6224959 Optical disc
05/01/2001US6224702 Method of manufacturing optical discs
05/01/2001CA2120509C Disk read-out circuit
04/2001
04/26/2001WO2001029837A1 Medium for fluorescent read-only multilayer optical information carrier and its manufacturing method
04/26/2001WO2001029835A1 Apparatus for information retrieval from a multilayer fluorescent optical clear card
04/26/2001WO2001029834A1 Optical recording medium, substrate for optical recording medium and optical disk device
04/26/2001WO2001029833A2 Digital laser image recorder
04/26/2001WO2001029832A1 Record carrier of a read-only type and read device
04/26/2001WO2001029828A1 Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant
04/26/2001WO2001029502A1 Method for determining geometric structures on or in a substrate as well as material parameters
04/26/2001WO2001028965A1 Fluoroalcohol composition
04/26/2001WO2001028779A1 Optical recording medium and apparatus for manufacture thereof
04/26/2001WO2000067257A3 Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system
04/26/2001US20010000454 Optical disc, and reading system and manufacturing method of the disk
04/26/2001US20010000453 Method of determining a distance to be moved by an optical pick-up
04/26/2001DE19951131A1 Compact disc for digital data storage with a scale on the disc that indicates memory capacity
04/26/2001DE10026068A1 Optical disc drive positions tracking actuators in midrange of disc based on tracking error signal detected from optical disc and switches ON actuator
04/26/2001CA2388800A1 Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant
04/25/2001EP1094674A2 Optical disk for high resolution and three-dimensional video recording, optical disk reproduction apparatus, and optical disk recording apparatus
04/25/2001EP1094461A2 Controlling the copying of information from one medium to another one
04/25/2001EP1094460A2 Recording apparatus
04/25/2001EP1094455A2 Magneto-optical recording medium
04/25/2001EP1094454A1 Optical information recording medium
04/25/2001EP1094453A2 Optical pickup assembly
04/25/2001EP1094452A2 Method and apparatus for detection of direction of movement of laser spot in optical disc recording/reproducing device
04/25/2001EP1094451A2 Seek actuator for optical recording
04/25/2001EP1094450A2 Optical recording medium
04/25/2001EP1094449A2 Simplified optical disc writing apparatus in which a host system performs at least one part of digital signal processing
04/25/2001EP1094448A2 Information recording method
04/25/2001EP1093656A1 Multiple channel scanning device using oversampling and image processing to increase throughput
04/25/2001EP0891253A4 Stamper for two layered disc
04/25/2001CN2427867Y Mechanism for precisely adjusting and fixing laser reading position
04/25/2001CN1292945A Optical microswitch having electrostatic microactuator and method for use thereof
04/25/2001CN1292923A Arrangement for reading information from record carrier
04/25/2001CN1292917A 光学拾取装置 The optical pickup apparatus
04/25/2001CN1292916A Reproducing apparatus and recorded medium
04/25/2001CN1292915A Method for recording multi-layer optically recordable information carrier
04/25/2001CN1292551A Data recording device and method capable of suppressing direct current component
04/25/2001CN1292548A Information recording medium and its manufacturing method
04/25/2001CN1292547A Optical disk device
04/25/2001CN1292546A Method and accessories for manufacturing slider
04/25/2001CN1065065C Single-face reading type two-layered CD and regenerative magnetic head
04/25/2001CN1065064C Disk recording system and method for controlling rotation of turntable in such disc recording system
04/24/2001US6223310 Information recording medium, and method and apparatus for managing defect thereof
04/24/2001US6223247 Disk shaped recording medium and drive apparatus utilizing logical block address conversion and start addresses which increase from inner and outer circumferential sides of the medium
04/24/2001US6222866 Surface emitting semiconductor laser, its producing method and surface emitting semiconductor laser array
04/24/2001US6222815 Optical disk recording method and device
04/24/2001US6222814 Recording/reproducing apparatus and method for phase-change optical disc
04/24/2001US6222813 System for creating, reading and writing on rotatable information storage media, an apparatus for controlling vertical laser alignment
04/24/2001US6222812 Optical pickup using an optical phase plate
04/24/2001US6222808 Optical information reproducing method and apparatus
04/24/2001US6222807 Information center, terminal apparatus, dubbing system and dubbing method
04/24/2001US6222805 Optical disk, reproduction apparatus, and reproduction method
04/24/2001US6222804 Optical head apparatus
04/24/2001US6222803 Optical pickup for discriminating between and reading different types of optical discs
04/24/2001US6222802 Device and method for automatically controlling sled loop gain in optical disc drive
04/24/2001US6222801 Optical pickup using optically variable iris
04/24/2001US6222800 Autoload disk copier system
04/24/2001US6222799 High-performance information processing apparatus having multitasking functions
04/24/2001US6222798 Track jump for optical information recording and reproducing method and device
04/24/2001US6222755 Solid state holographic memory
04/24/2001US6222687 Object len supporting unit compensating for inclination of object lens
04/24/2001US6222340 Stepping motor control device and optical head drive device
04/24/2001US6221557 Optical information recording medium
04/24/2001US6221556 Article for optical data storage device
04/24/2001US6221535 Mixture of a charge transport matrix and electrooptic dye
04/24/2001US6221455 Multi-layer optical disc and recording/reproducing apparatus
04/24/2001US6221454 Bonded optical disks and a method and an apparatus for producing the same
04/24/2001US6220715 Method and device for removing light
04/19/2001WO2001027922A1 Method of hiding areas on a disc like recording of the optically rewritable type
04/19/2001WO2001027919A1 Magnetooptic recording medium and magnetooptic recorder
04/19/2001WO2001027918A1 Optical pickup apparatus
04/19/2001WO2001027917A1 Optical recording medium, optical recording method, optical recorded medium reproducing method
04/19/2001WO2001027916A1 Phosphorous and fluorine containing compounds as magnetic media lubricants
04/19/2001WO2001027689A1 Optically functional element and production method and application therefor
04/19/2001US20010000310 Optical pickup using an optical phase plate
04/19/2001DE19916051C2 Aufzeichnungsmedium Recording medium
04/19/2001DE10023393A1 Vorrichtung zum Aufzeichnen von Information An apparatus for recording information
04/18/2001EP1093124A2 Optical disk for recording copyrighted information, and method and apparatus for reproducing information recorded in optical disk
04/18/2001EP1093123A1 Information record disc and information recording apparatus
04/18/2001EP1093119A2 Information write device and information read device
04/18/2001EP1092753A1 Cyanine dye
04/18/2001EP1092219A1 Noncircular-shaped compact disc having positioning markers and sliding-resistance
04/18/2001EP0882292B1 Optical head
04/18/2001CN1292136A Method and apparatus for detecting distance change, controlling focusing and detecting light reflection
04/18/2001CN1292107A Electric appliance
04/18/2001CN1292104A Method and apparatus for forming hologram
04/18/2001CN1291771A Optical disk device, focusing value correcting method and optical disk
04/18/2001CN1291770A Device for reading out from optical record medium and loading into optical record medium
04/18/2001CN1064775C Photo pick-up device