| 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) |
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| 05/05/1998 | US5748580 Objective lens actuator for optical head |
| 05/05/1998 | US5748579 Optical pickup for magneto optical recording apparatus |
| 05/05/1998 | US5748578 Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same |
| 05/05/1998 | US5748574 Double focal-point magneto-optic pick-up head |
| 05/05/1998 | US5748572 Magneto-optical recording apparatus with an optical element providing a high C/N ratio |
| 05/05/1998 | US5748410 Slotted flex circuit for a disk drive actuator |
| 05/05/1998 | US5746811 Disc repair system |
| 04/30/1998 | WO1998018122A1 Magneto-optic recording system and method |
| 04/30/1998 | WO1998018121A1 Optical disc |
| 04/30/1998 | DE19721719A1 Offset servowriting method for computer hard disc drive |
| 04/29/1998 | EP0838818A2 Determination of disk types and reproducing data from disks |
| 04/29/1998 | EP0838813A2 Optical pickup device compatible for multiple disk formats |
| 04/29/1998 | EP0838812A2 Method for recording/reproducing on/from an optical information recording medium, optical pickup apparatus, objective lens and design method of objective lens |
| 04/29/1998 | EP0838811A2 Analog to digital converter and assembly to normalize servo error signals and multiplex reference voltage inputs and digital outputs and optical drive system including same |
| 04/29/1998 | EP0838810A1 Optical pickup and disk player |
| 04/29/1998 | EP0838809A1 Optical pickup and disk player |
| 04/29/1998 | EP0838808A2 Information recording medium which indicates information according to the wobbling of a track and information recording and reproducing apparatus |
| 04/29/1998 | EP0838807A2 Phase change optical disk and a method for recording and playbacking optical information on or form an optical disk |
| 04/29/1998 | EP0838041A1 Position feedback system for volume holographic storage media |
| 04/29/1998 | EP0726012A4 An audio and video disc reproducing apparatus |
| 04/29/1998 | CN1180443A Optical pickup and optical element used therefor |
| 04/29/1998 | CN1180228A Multi-picture processing digital video disc player |
| 04/29/1998 | CN1180225A 光记录介质 The optical recording medium |
| 04/29/1998 | CN1180224A 光记录介质 The optical recording medium |
| 04/29/1998 | CN1180223A Head feeding mechanism and optical pick-up feeding mechanism |
| 04/29/1998 | CN1180222A Optical pickup apparatus for reproduction of information record medium |
| 04/29/1998 | CN1180221A Apparatus and method for controlling tracking balance of optical disk player |
| 04/29/1998 | CN1180220A Method for resetting password using disk and disk system adopting the same |
| 04/29/1998 | CN1180219A Optical disk drive equipped with waveform equalizer and focus adjustment circuit |
| 04/29/1998 | CN1180216A Tracking control method and its device for image recording reappearing device |
| 04/28/1998 | US5745643 System for and method of reproducing playback data appropriately by the use of attribute information on the playback data |
| 04/28/1998 | US5745641 Full-motion video disc with reference information for slow-motion or freeze playback |
| 04/28/1998 | US5745475 Optical information recording medium |
| 04/28/1998 | US5745474 Apparatus and method for reproducing data from disk, method for recording data on disk and disk |
| 04/28/1998 | US5745473 Multiple data layer optical disk with recorded information identifying the type of tracking |
| 04/28/1998 | US5745471 Device for damping vibrations or shocks in an optical disk player |
| 04/28/1998 | US5745470 Head moving apparatus which cancels leakage flux |
| 04/28/1998 | US5745469 Signal-processing preamplifier for an optical disc system |
| 04/28/1998 | US5745468 Mark edge recorded signal reproducing device for use in optical disk apparatus |
| 04/28/1998 | US5745467 Optical information recording method and apparatus |
| 04/28/1998 | US5745466 Objective lens drive apparatus for a recording and reproducing different discs of different format |
| 04/28/1998 | US5745465 For reading from and writing to a disc |
| 04/28/1998 | US5745464 Edge position data reproduction apparatus |
| 04/28/1998 | US5745463 Phase-change optical disc recording method and apparatus, and information recording apparatus and recording pre-compensation method |
| 04/28/1998 | US5745461 Method and a system of optical disk auto-discrimination |
| 04/28/1998 | US5745459 Methods and apparatus for managing recording medium |
| 04/28/1998 | US5745456 Disk sensing apparatus for discriminating disk type in a dual purpose disk player |
| 04/28/1998 | US5745455 Disc device having eccentricity measurement and clock correction |
| 04/28/1998 | US5745453 Disk, recording device, reproducing device, recording method and reproducing method including calculation, storage and utilization of parity information |
| 04/28/1998 | US5745452 Apparatus and method for quickly focusing an optical disk player |
| 04/28/1998 | US5745451 Disc recording and/or reproducing apparatus |
| 04/28/1998 | US5745450 Focusing servo system and focus servo acquisition enable with multiple velocity acquisition modes |
| 04/28/1998 | US5745449 Optical information recording/reproducing method and apparatus for determining a relative tracking offset amount of light spots on a recording medium to perform tracking control |
| 04/28/1998 | US5745447 Three-axis moving actuator for optical pick-up |
| 04/28/1998 | US5745443 Magneto-optical disc having a protective film with minimal projections and method of production of same |
| 04/28/1998 | US5745304 Integrated optical pickup system capable of reading optical disks of different thickness |
| 04/28/1998 | US5745265 Optical element utilized for optical storage unit and optical device including the optical element |
| 04/28/1998 | US5744792 Hybrid information recording medium |
| 04/28/1998 | US5744193 Method of manufacturing an optical disc and a placing platform to be used by the same |
| 04/28/1998 | US5743965 Disk coating system |
| 04/28/1998 | CA2016195C Light stabilizer comprised of aryl nitrogen compound and uses thereof |
| 04/28/1998 | CA2003158C Optical information recording medium and recording/reproducing system |
| 04/24/1998 | CA2218675A1 Objective lens having a doublet lens with high numerical aperture |
| 04/23/1998 | WO1998016929A1 Digital recording method, digital disk, digital disk recording device, and digital disk reproducing device |
| 04/23/1998 | WO1998016924A1 Method of regulating the focusing and guiding of a light beam |
| 04/23/1998 | WO1998016588A1 Phthalocyanine compounds, process for preparing the same, and optical recording medium made using the same |
| 04/23/1998 | WO1998009392A3 System and method of using optical fibers in a data storage and retrieval system |
| 04/23/1998 | DE19644636A1 Photorefractive optical material |
| 04/22/1998 | EP0837473A2 CD player |
| 04/22/1998 | EP0837472A2 Signal recording apparatus and signal recording method |
| 04/22/1998 | EP0837471A2 Rewritable disc and device for recording data in the same disc |
| 04/22/1998 | EP0837469A2 Recording device and recording method |
| 04/22/1998 | EP0837467A2 Reproduction or recording device for optical recording media |
| 04/22/1998 | EP0837464A2 Magneto-optical recording medium |
| 04/22/1998 | EP0837463A1 Optical recording layers containing no K metallized formazan dyes mixed with symmetrical and unsymmetrical cyanine dyes |
| 04/22/1998 | EP0837462A1 Optical recording elements having recording layers containing mixtures of low K metallized formazan and cyanine dyes |
| 04/22/1998 | EP0837461A1 Recording media for recordable element |
| 04/22/1998 | EP0837460A1 Tetra dye mixed with another dye or dyes for optical recording elements |
| 04/22/1998 | EP0837459A1 Optical recording elements having recording layers containing mixtures of no K metallized formazan and cyanine dyes |
| 04/22/1998 | EP0837458A1 Thicker optical recording layers comprising a tetra dye having a metallized azo dianionic dye with cationic dye counterions |
| 04/22/1998 | EP0837457A1 Mixtures of low K metallized formazan dyes with symmetrical and unsymmetrical cyanine dyes |
| 04/22/1998 | EP0837456A2 Recording medium having track formed of land protion and groove portion, and reproducing apparatus therefor |
| 04/22/1998 | EP0837455A2 Device for reading from or writing to an optical recording medium |
| 04/22/1998 | EP0837454A2 Guide groove structure in optical storage media |
| 04/22/1998 | EP0837321A2 Optical disc inspection equalization system and method |
| 04/22/1998 | EP0836738A1 Optical storage system |
| 04/22/1998 | CN1179860A Semiconductor laser device and optical disk apparatus using same |
| 04/22/1998 | CN1179596A Optical pickup device |
| 04/22/1998 | CN1179595A Optical recording and reproducing device |
| 04/22/1998 | CN1179594A Optical disc apparatus and tracking error signal calculation circuit |
| 04/22/1998 | CN1179593A Optical recording regenerator |
| 04/22/1998 | CN1179592A Optical head adjusting apparatus |
| 04/22/1998 | CN1179591A Recording and reproducing apparatus and recording and reproducing method |
| 04/22/1998 | CN1179590A Reproduction or recording device for optical recording media |
| 04/22/1998 | CN1179589A Recording medium and reproducing apparatus |
| 04/22/1998 | CN1179588A Information recording and reproduction apparatus carrying out recording and reproduction of information using laser beam |
| 04/21/1998 | US5742731 Multi-scene recording medium for alternatingly and continuously recording program information items corresponding to different views of an event, and a method and apparatus for reproducing data therefrom |
| 04/21/1998 | US5742581 Transmissive optical and magneto-optical data storage media |
| 04/21/1998 | US5742579 Optical disk recording device and optical disk drive |
| 04/21/1998 | US5742578 Information recording and reproducing apparatus using light beam modulation on a spiral guide groove disk |