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)
01/2005
01/06/2005US20050002296 Information storage medium and method and apparatus for recording/reproducing data
01/06/2005US20050002294 Method of recording temporary defect list on write-once recording medium, method of reproducing the temporary defect list, recording and/or reproducing apparatus, and the write-once recording medium
01/06/2005US20050002293 Write signal control circuit in an optical disk drive
01/06/2005US20050002292 Optical pick-up, optical disk apparatus and information processing apparatus
01/06/2005US20050002291 Method and apparatus for head positioning control in a disk drive
01/06/2005US20050002290 Optical disc apparatus and still operation method capable of performing still operation without deteriorating optical disc
01/06/2005US20050002289 Optical pickup moving unit, optical disk apparatus, and method of manufacturing optical disk apparatus
01/06/2005US20050002288 Optical pickup device and method for controlling the same
01/06/2005US20050002287 Optical pickup apparatus and method for making the same
01/06/2005US20050002286 Optical disk apparatus and optical disk processing method
01/06/2005US20050002285 Optical information processing system using optical aberrations and information medium having recording layer protected by transparent layer having thickness irregularity
01/06/2005US20050002284 Optical head device and coil manufacturing apparatus
01/06/2005US20050002282 Information recording method capable of forming micro marks by optical modulation
01/06/2005US20050002165 Laser diode for optical pickup and method of protection
01/06/2005US20050002118 Objective lens for optical pick-up
01/06/2005US20050002109 Optical pick-up device, and optical disc drive including the same
01/06/2005US20050002085 MEMS mirror device and optical disk apparatus
01/06/2005US20050002014 Optical pickup apparatus
01/06/2005US20050001343 Method for producing multilayer optical recording medium and system for production multilayer optical recording medium
01/06/2005US20050001231 Light receiving element and light receiving device incorporating circuit and optical disc drive
01/06/2005US20050001141 Optical scanning device
01/06/2005US20050001032 Reading unit and marking card for optical mark reader
01/06/2005US20050000657 Medium with embedded information
01/06/2005CA2513365A1 Information storage medium and method and apparatus for recording/reproducing data
01/05/2005EP1494236A2 Recording or playback machine with a recording or reading device
01/05/2005EP1494235A1 Data recording medium, data recording method, and apparatus
01/05/2005EP1494234A2 Recording medium, recording and reproduction apparatus, and recording and reproduction method
01/05/2005EP1494230A2 Phase change recording film having high electrical resistance and sputtering target for forming phase change recording film
01/05/2005EP1494229A1 Information recording medium and its production method, and optical information recording/reproducing apparatus
01/05/2005EP1494228A1 Optical recording medium and production method therefor
01/05/2005EP1494227A2 Optical pickup and optical data processing apparatus
01/05/2005EP1494226A2 Objective lens optical pickup and optical information processing apparatus using the same
01/05/2005EP1494225A2 Optical system, optical pickup device, recording or/and reproducing apparatus
01/05/2005EP1494224A2 Apparatus and method for aligning holographic ROM system
01/05/2005EP1494223A2 Information recording medium, and information reproducing apparatus and method
01/05/2005EP1494222A2 Method and apparatus for compressing holographic data
01/05/2005EP1494221A2 Holographic ROM system including an alignment apparatus for aligning a holographic medium and a mask
01/05/2005EP1494220A2 Method and apparatus for recording data on optical recording medium
01/05/2005EP1494219A1 Optical information recording medium
01/05/2005EP1494218A1 Disk evaluation device
01/05/2005EP1494217A1 Optical information device, optical storage medium, optical storage medium inspection device, and optical storage inspection method
01/05/2005EP1494216A1 Method for land pre-pit recovery
01/05/2005EP1494213A2 Head position demodulating method and disk apparatus
01/05/2005EP1493838A1 Replacement unit and replacement method for substrate in thin-film forming device
01/05/2005EP1493779A1 Optical disk substrate and lightguide plate
01/05/2005EP1493150A1 Holographic storage media
01/05/2005EP1493149A1 Optical disc apparatus for recording and/or reproducing information on/from an information surface of a rotatable optical disc
01/05/2005EP1493148A1 Writing scheme for an optical recording medium
01/05/2005EP1493147A2 Content replication deterrent method on optical discs
01/05/2005DE10325416A1 Strahlfänger Beam stop
01/05/2005DE102004027124A1 Process to manufacture a recording medium e.g. CD or DVD by application of a monomer polymer top separation layer
01/05/2005DE102004024114A1 Sputter-Target aus einer Legierung auf Ag-Bi-Basis und Verfahren zur Herstellung desselben Of the same sputtering target made of an alloy Ag-Bi-based and methods for preparing
01/05/2005CN1561519A Method and apparatus for recording a digital information signal
01/05/2005CN1561517A Optical storage medium
01/05/2005CN1561370A Polycarbonate composition with excellent releasability from mode
01/05/2005CN1560864A Defect signal detection device and method
01/05/2005CN1560863A Optical disc and optical disc address reading apparatus and method
01/05/2005CN1560862A Optical disc and optical disc address reading apparatus and method, information medium
01/05/2005CN1560857A Method and device for decoding data regulated by optical driver system 8-14
01/05/2005CN1560856A High-definition autio-vedio HVD optical disc
01/05/2005CN1560855A HVD disc making device and method
01/05/2005CN1560854A HVD disc playing device and its playing method
01/05/2005CN1560851A Device and method of dynamic regulating synchronous window
01/05/2005CN1560844A Optical disc and disc cartridge reproducing and/or recording device
01/05/2005CN1560843A 光记录介质 The optical recording medium
01/05/2005CN1560842A Optical head apparatus
01/05/2005CN1560841A Method of eliminating home-in noise in optical disc drive by using variable step counter
01/05/2005CN1560840A Variable-spacing double-density optical disk
01/05/2005CN1560839A Polarization orthogonal double-channel holographic optical data storage method and its system
01/05/2005CN1560838A Optical disk recording reproducing device
01/05/2005CN1560837A Apparatus for recording data on optical recording medium
01/05/2005CN1560836A Wobble signal reproducing circuit
01/05/2005CN1183780C Optical disc reproducing equipment and optical disc recording method
01/05/2005CN1183540C Method and device for making recording medium parent disc, and digital data recording method and apparatus thereof
01/05/2005CN1183539C Data modulation method and recording and reconstruction device and method using said method
01/05/2005CN1183535C Reproduction device and method of disk recording medium
01/05/2005CN1183529C Magnetic engraving method, in particular for magnetic or magneto-optical recording
01/05/2005CN1183528C Optical disk, method for recording write-once information on and from optical disk, method for reproducing same, optical disk reproducing, device optical disc recording and reproducing device
01/05/2005CN1183527C Optical head apparatus
01/05/2005CN1183526C Capatible optical adaptor and regulation method of conducting optical-axis adjustment therein
01/05/2005CN1183525C Optical pickup device for optical disk driver
01/05/2005CN1183524C Pick-up device for detecting media thickness variation and/or compensating ball-shaped aberration caused by it
01/05/2005CN1183523C Optical head capable of reducing adjacent orbit crossfire
01/05/2005CN1183522C Optical disk device and method of controlling focus in the same
01/05/2005CN1183521C Optical pickup device and recording and/or reproducing device
01/05/2005CN1183520C Optical record medium capable of recording in ridge and valley
01/05/2005CN1183519C Optical pickup device and CD recording and/or reproducing device
01/05/2005CN1183398C Lens for optical recording and producing system
01/05/2005CN1183189C Vinylcyclohexane-based polymer/copolymer and mixture of stabilizer system
01/04/2005US6839900 Disk cartridge, a method of manufacturing same, and a recording/reproducing system
01/04/2005US6839899 Optical element driving device having two permanent magnets and one magnetic substance
01/04/2005US6839318 Controlling hardness, thickness, light transmission; curable polymer using laser beams
01/04/2005US6839317 Recording information reproducing apparatus
01/04/2005US6839316 Multilayer; radiation transparent and opacity zones
01/04/2005US6839315 Optical head and optical pickup having improved thermal coefficient matching for thermal expansion adjustment
01/04/2005US6839314 Optical pickup
01/04/2005US6839313 Information recording and reproducing apparatus
01/04/2005US6839312 Copy protection of digital audio compact discs
01/04/2005US6839310 Optical disk drive having optical power control
01/04/2005US6839308 Information data reproducing apparatus