Patents
Patents for G11B 11 - Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group; Record carriers therefor (14,351)
06/2000
06/06/2000US6071323 Given amount of rare earth element and transition metal element including at least one of iron, nickel and cobalt, homogeneous sintered structure; regenerating by pulverizing, mixing with specific alloy blend used to make target, firing
06/02/2000WO2000031734A1 System, method and information carrier for laser-stimulated magnetic recording
05/2000
05/31/2000DE19956827A1 Mini-disc sound reproduction device has operating control for switching between synchronous reproduction of main data and sub-data and selective reproduction of main data or sub-data
05/31/2000DE19855062A1 Blockcopolymere auf Vinylcyclohexanbasis Block copolymers Vinylcyclohexanbasis
05/30/2000US6069868 Multiple layer optical disk storing information at a like multiple densities
05/30/2000US6069859 Polarization separating element having partially polarizing properties for diffracting an ordinary light beam and a process for producing the same
05/30/2000US6069858 Optical disk apparatus
05/30/2000US6069853 Head including a heating element for reducing signal distortion in data storage systems
05/30/2000US6069852 Magneto-optical recording-reproducing method for recording an asymmetrical magnetic domain on a magneto-optical recording medium
05/30/2000US6068739 Method of manufacturing data recording medium made of ordered alloy thin film
05/30/2000CA2013760C Disc cartridge
05/25/2000WO2000030088A1 Method of optimizing reproduction laser power for magneto-optic recording medium and magneto-optic disk unit using the method
05/25/2000WO2000030087A1 Magneto-optic (mo) recording medium
05/25/2000WO2000030086A1 Method for reading and writing a data storage medium comprising a material with a succession of zones having a first and second physical state respectively
05/25/2000WO2000030083A1 Optical disk recording and/or reproducing apparatus and access method
05/24/2000EP1003163A1 Optical recording medium
05/24/2000EP0627113B1 Data recording medium, recorder, reader and recording method
05/23/2000USRE36709 Photomagnetic disc record/reproduction apparatus including improved magnetic head lifting mechanism
05/23/2000US6067285 Optical disc
05/23/2000US6067284 Recording power adjustment for optical storage apparatus
05/23/2000US6067213 Tape stepper for transverse track positioning in a multitrack tape recorder
05/23/2000US6067207 Recording and/or reproducing apparatus including a slider with an inclined guide at a front end portion thereof
05/18/2000WO2000028538A1 Optical disk, disk substrate, and drive
05/17/2000EP1001423A2 Data writing/reading apparatus
05/17/2000EP1001416A1 A method of recording information on a magneto-optical medium
05/17/2000EP0729630B1 Record carrier, recording device and reading device
05/17/2000EP0686298B1 Optical method and system for reading/writing data on a recording medium
05/17/2000CN1253357A Magnetooptical record medium and its manufacturing method
05/17/2000CN1253068A Method and equipment for forming plastic sheet
05/17/2000CN1052552C Data destruction preventing method, recording apparatus provided with data destruction preventing capability, and disc recorded with guard band
05/16/2000US6064644 Optical recording medium having particular arrangement of prepits and manufacturing method thereof
05/16/2000US6064640 Optical disk apparatus and medium carrier and medium turntable for optical disk apparatus
05/16/2000US6064639 High speed data recording and/or reproducing method and apparatus with increased data sector access speed
05/16/2000US6064632 Recording/reproducing apparatus and a magneto-optical recording medium for use therewith
05/10/2000EP0999552A2 Information recording medium and reproducing apparatus
05/10/2000EP0999544A2 Optical disk, optical recording/reproducing apparatus and optical recording/reproducing method
05/10/2000EP0999033A2 Process and apparatus for forming plastic sheet
05/10/2000CN1252593A Optic information recording and reproducing device
05/09/2000US6061323 Data storage system having an improved surface micro-machined mirror
05/09/2000US6061322 Optical storage system having optical head with a solid immersion lens and operating on media with at least two recording layers
05/09/2000US6061314 Optical disc device reproducing information according to reproduction speed information
05/09/2000US6061307 Magneto-optical recording medium having a plurality of magnetic layers
05/09/2000US6061169 Integrated micro-optical systems
05/03/2000EP0997903A2 Information recording method and reproducing method
05/03/2000EP0997899A2 Optical disk, method for recording and reproducing additional information to and from optical disk, reproducing apparatus for optical disk, and recording and reproducing apparatus for optical disk
05/03/2000EP0997894A1 Magneto-optical recording medium and method of manufacturing magneto-optical recording medium
05/03/2000EP0997893A1 Information recording/reproducing apparatus
05/02/2000US6058100 Optical recording medium having pit rows
05/02/2000US6058094 Flying magneto-optical head with a steerable mirror
05/02/2000US6058085 Method and apparatus for identifying and skipping defective sections
05/02/2000US6058081 Optical drive system having servomotor operated relative to maximum quad sum signal
05/02/2000US6058078 Information recording disc demagnetization apparatus
05/02/2000US6058077 Signal reproducing method and apparatus for reproducing information by moving magnetic wall
05/02/2000US6057990 Multiple actuator assemblies for data storage devices
05/02/2000US6057985 Magnetic head device
04/2000
04/27/2000WO2000023840A1 Near field optical scanning system employing microfabricated solid immersion lens
04/27/2000WO1999065021A3 Magneto-optical data storage system
04/27/2000WO1999063539A8 Efficient linearization of saturation channels
04/27/2000DE19948314A1 Magnetic head for magneto-optical disc has glider supporting 2 magnetic field generators at different relative spacings from its rear edge
04/26/2000EP0996127A2 Method for tracking control
04/26/2000EP0996117A1 Near field optical head and reproduction method
04/26/2000EP0996116A1 Information recording method, information reproducing method, recording medium used by the method, information recording device, and information reproducing device
04/26/2000EP0996113A1 Method and apparatus for magnetic recording
04/26/2000CN1251458A Reading-writing head assembly with multiple magnetic track guided by integrated magnetic tape
04/25/2000US6055223 Optical memory apparatus
04/25/2000US6055222 Near field optical head having a solid immersion lens that is fixed relative to an objective lens
04/25/2000US6055220 Optical disk data storage system with improved solid immersion lens
04/25/2000US6055140 Rigid disc plastic substrate with high stiffness insert
04/25/2000US6054199 Optical recording medium
04/20/2000DE19846878A1 Kopfanordnung zur Multispur-Aufzeichnung mit integrierter Bandführung Head assembly for multi-track recording with integrated tape guide
04/19/2000EP0994472A1 Magnetic recording medium
04/19/2000EP0994471A2 Head arrangement for multitrack recording with integrated tape guidance
04/19/2000EP0994466A2 Magneto-optical head device having integrated auxiliary lens and magnetic reproducing head and recording and reproducing device using magneto-optical head device
04/19/2000CN2374948Y Fretting-proof cd
04/19/2000CN1250934A Tracing control method
04/19/2000CN1051629C Optical-magnetic recording carrier, and method and equipment for mfg. same
04/18/2000US6052348 System and method for write location defect compensation in computer storage media
04/18/2000US6052347 Method and apparatus for detecting optimum recording power for an optical disk
04/18/2000US6052345 System for compensating for hard sector noise degradation of tracking error signals in an optical data storage system
04/18/2000US6052249 Method and apparatus for data storage using thermal proximity imaging
04/18/2000CA2151452C Magneto-optical recording medium for realizing super resolution and reproducing method using the medium
04/13/2000WO2000021081A1 Information recording medium and information recording device
04/13/2000WO1999048095A3 Method and apparatus for simultaneously recording and reproducing real time information on/from a disc like record carrier
04/13/2000DE19846835A1 Verfahren zur Spurlageregelung Method for tracking control
04/12/2000EP0992989A1 Method for producing an optical recording medium
04/12/2000EP0650629B1 Reading and writing stored information by means of electrochemistry
04/12/2000CN1250538A Catadioptric optical system, optical pickup and optical disk drive employing the same, and optical disk
04/11/2000US6049521 Optical recording medium and method for producing same
04/11/2000US6049517 Dual format audio signal compression
04/11/2000US6049516 Information recording and/or reproducing method and apparatus in which a servo process of a light beam is interrupted between input/output control of data at predetermined periods
04/11/2000US6049430 High numerical aperture objective lens manufacturable in wafer form
04/11/2000US6048597 Optical device and manufacturing method thereof
04/05/2000EP0991062A1 Optical pickup device and optical disk recording and/or reproducing device
04/04/2000US6046976 Disc cartridge with grooves for a recording and reproducing apparatus
04/04/2000US6046972 Method and producing probe with minute aperture, scanning near-field optical microscope using the probe and recording and/or reproducing apparatus using the probe
04/04/2000US6046966 Magneto-optical data storage system
03/2000
03/30/2000WO2000017881A1 Improved optical disk device and method
03/30/2000WO2000016957A1 Shaping tool for information carrier disc blanks
03/30/2000WO1999063530A9 A magneto-optical recording system employing linear recording and playback channels
03/30/2000CA2344476A1 Shaping tool for information carrier disc blanks
1 ... 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 ... 144