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)
02/2004
02/12/2004US20040027938 Spherical aberration correcting method and apparatus
02/12/2004US20040027937 Focus servo compensation apparatus and method using a tracking error signal of an optical disc
02/12/2004US20040027936 Optical disk apparatus and pickup control unit/method
02/12/2004US20040027932 Method for switching an optical disc apparatus to different accessing speeds
02/12/2004US20040027929 Optical head and coil assembly used for the same
02/12/2004US20040027927 Cleaning disk, magneto-optical disk drive apparatus and recording/reproduction apparatus
02/12/2004US20040027710 Magnetic recording/reproducing device
02/12/2004US20040027703 Optical recording medium and production method therefor
02/12/2004US20040027674 Objective lens device, optical pickup device, and optical information recording and/or reproduction device
02/12/2004US20040027668 Medium position sensing
02/12/2004US20040027629 Rotation correlation multiplex holography
02/12/2004US20040027625 Holographic storage media
02/12/2004US20040027561 Deflection angle detecting device
02/12/2004US20040027439 Ink-jet receptive inks for printing on to cd-r substrates
02/12/2004US20040026756 Hybrid optical element and photodetector device
02/12/2004US20040026685 Nitride semiconductor laser device and optical pickup apparatus therewith
02/12/2004DE20315940U1 Identification code for use with recorded information on such as a disc is in form of binary number
02/12/2004DE10334786A1 Optical recording and playback device, e.g. for magneto-optical disks, especially for use in public locations, has means for adjusting laser beam intensity based on the detected error rate during recording or reading of data
02/12/2004DE10229234A1 Eigensicherer Pickup für Wiedergabe- oder Aufzeichnungsgeräte unterschiedlicher optischer Aufzeichnungsträger An intrinsically safe pick for playback or recording devices of different optical recording medium
02/11/2004EP1388854A1 Optical disc adhesive curing device
02/11/2004EP1388853A2 Optical recording/reproducing method and optical recording medium
02/11/2004EP1388852A1 Adhesive for optical disk and optical disk
02/11/2004EP1388851A1 Method for detecting a wobble signal
02/11/2004EP1388850A1 Method for detecting a wobble signal
02/11/2004EP1388149A2 Method and apparatus for producing optical recording media with accurately parallel surfaces
02/11/2004EP1388148A1 A method and apparatus for recording a compact disc at a sub-1x speeds
02/11/2004EP1387765A1 A dual lamp system for manufacturing dvd
02/11/2004EP1226581B1 Method and device for initialising digital optical discs
02/11/2004EP0981733B1 Grating based phase control optical delay line
02/11/2004CN2603403Y Film alloy base material with optical reflection and semipenetration
02/11/2004CN1475011A Method and apparatus for determining main parameter values of a storage medium that are required for replaying said storage medium
02/11/2004CN1474401A Synchronous signal protective circuit
02/11/2004CN1474399A Managing method of optic disc defect and optic disc device
02/11/2004CN1474398A Managing method of optic disc defect and optic disc device
02/11/2004CN1474397A Method for reproducing signal evaluation, information record method and information reproducing device and method
02/11/2004CN1474396A Content record method and record device
02/11/2004CN1474392A Information record mdeium, information recored method and information replay method
02/11/2004CN1474391A Record medium with resin substrate
02/11/2004CN1474390A Information record medium
02/11/2004CN1474389A Recording reproducing device and optical head for optical information recording medium
02/11/2004CN1474388A Optical pick-up device
02/11/2004CN1474387A Incline degree adjuster for optic disc player
02/11/2004CN1474386A System and method for recording and replaying information
02/11/2004CN1474385A Optic disc
02/11/2004CN1138264C Method and apparatus for writing optical recording media
02/11/2004CN1138263C Optical head compatible with several disks of different size
02/11/2004CN1138262C Four-dimensional objective lens driver
02/11/2004CN1138261C Method and apparatus for optical information reproduction
02/11/2004CN1138260C Multiple data surface data storage system and method
02/11/2004CN1138255C Displacement control circuit and control method
02/10/2004US6691265 Method for creating defect management information in an recording medium, and apparatus and medium based on said method
02/10/2004US6691072 Mark length selection apparatus, mark length selection method, maximum mark length detection apparatus, and maximum mark length detection method
02/10/2004US6690641 Optical disk
02/10/2004US6690640 System for storing and/or reproducing information
02/10/2004US6690638 Supporting mechanism for an optical disc reproducing apparatus having a sub-frame for suppressing vibration
02/10/2004US6690636 Preformatting optical recording medium
02/10/2004US6690634 Method for forming an information recording medium having information on spare area, and method and apparatus for recording/reproducing data to/from the medium
02/10/2004US6690633 Method and apparatus for controlling optimal writing power for an optical recording medium
02/10/2004US6690632 Tilt servo apparatus and control method thereof
02/10/2004US6690630 Compact disc decoder and method for correcting address errors in header data based on an input error flag
02/10/2004US6690629 Recording information reproducing apparatus
02/10/2004US6690628 Tracking error signal compensation circuit and tracking error signal compensation method
02/10/2004US6690626 Domain wall displacement detection type optical disk it is necessary to weaken magnetic coupling between adjacent recording tracks
02/10/2004US6690500 Aberration correction apparatus and method
02/10/2004US6690219 Digital wave generating apparatus and the method thereof
02/10/2004US6689872 Azo metal chelate compound
02/10/2004US6689863 Polycarbonate copolymers and methods for producing the polycarbonate copolymers
02/10/2004US6689545 Method of fabricating near-field light-generating element
02/10/2004US6689445 Information recording medium and method of manufacturing the same
02/10/2004US6689444 Reflection layer or semi-transparent reflection layer for use in optical information recording media, optical information recording media and sputtering target for use in the optical information recording media
02/10/2004US6689415 Method and apparatus for preparing optical information medium
02/10/2004US6689253 Facing target assembly and sputter deposition apparatus
02/10/2004US6688743 Method and apparatus to determine fly height of a recording head
02/10/2004CA2340352C Optical data recording method, and data recording medium
02/05/2004WO2004012188A1 Phase correction element and optical head device
02/05/2004WO2004012187A1 Optical scanning device
02/05/2004WO2004012186A1 Disc reproduction device
02/05/2004WO2004012185A2 Information storage medium and method of recording information thereon
02/05/2004WO2004012016A1 Recording device, reproduction device, and recording/reproduction device
02/05/2004WO2003107335A3 Controller device with switchable characteristic
02/05/2004WO2003046897A3 Optical scanning device
02/05/2004US20040024125 A miscible polymer blends, a polycarbonate homopolymer of 1,1-bis(4-hydroxy-alkylphenyl)cycloalkyl, and polymethylstyrene/A-/; high density optical recording media
02/05/2004US20040023069 High reliability and favorable overwrite cycle-ability; Zr/Hf-Cr-O-based material layer
02/05/2004US20040022987 Optical recording medium
02/05/2004US20040022986 Limited-play optical media with improved shelf-life and playability
02/05/2004US20040022519 Method of and apparatus for recording data in various recording formats on an optical storage medium, method of and apparatus for reproducing the data, and an optical storage medium on which the data is recorded
02/05/2004US20040022173 Information recording medium and reproducing apparatus thereof
02/05/2004US20040022171 Recording medium for storing defect management information for recording real time data, defect managing method therefor, and real time data recording method
02/05/2004US20040022169 Write/read head supporting mechanism, and write/read system
02/05/2004US20040022168 Optical head device and optical reproducing apparatus using the same
02/05/2004US20040022167 Objective lens driver and optical memory device
02/05/2004US20040022166 Optical disk device and recording power determining method
02/05/2004US20040022165 Three-dimensional optical memory
02/05/2004US20040022164 Optical pickup
02/05/2004US20040022163 Optical disc system using counter-rotating optical read/write assembly
02/05/2004US20040022162 Optical recording and reproducing medium, mother stamper for manufacturing optical recording and reproducing medium and optical recording and reproducing device
02/05/2004US20040022161 Image and data storage by focused ion beam recordation and method thereof
02/05/2004US20040022158 System and method of recording and reproducing information
02/05/2004US20040022157 Phase lock loop for a controller in an optical disk system and methods therefor
02/05/2004US20040022156 Method and apparatus for discriminating between different types of discs