| 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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| 02/03/1988 | EP0255188A2 Method of recording, reproducing and erasing information on an optical disk |
| 02/03/1988 | EP0255173A1 Device for scanning a radiation-reflecting information surface with optical radiation |
| 02/03/1988 | EP0255140A2 Method of measurement of crosstalk noise in playback information signal |
| 02/03/1988 | EP0255088A2 Method and apparatus for producing optical disk base |
| 02/03/1988 | EP0254749A1 Optical memorizing device |
| 02/03/1988 | EP0254748A1 Device for detecting defect of disc-like recording media |
| 02/03/1988 | CN87105175A 光盘 CD |
| 02/02/1988 | US4723234 Optical disc player |
| 02/02/1988 | US4722595 Process for displaying optically readable information |
| 02/02/1988 | CA1232353A1 Optical signal recorders employing two lasers and methods therefor |
| 01/28/1988 | WO1988000755A1 Optical disc |
| 01/28/1988 | DE3724622A1 Optical information storage medium |
| 01/27/1988 | EP0254553A2 Optical recording medium |
| 01/27/1988 | EP0254285A2 High density storage of information on a compact disc |
| 01/27/1988 | EP0254184A2 Use of curable reactive masses in the preparation of data supports |
| 01/27/1988 | EP0254174A2 Use of curable reactive masses in the preparation of support of data |
| 01/26/1988 | US4722079 Optical disk player capable of distinguishing external disturbances and local defects and adjusting servo gain accordingly |
| 01/26/1988 | US4721850 Optical pickup device having a detector for detecting the light emitting intensity variation of a semiconductor light emitting element |
| 01/20/1988 | EP0253613A2 Optical head |
| 01/20/1988 | EP0253442A1 Apparatus for scanning an optical record carrier |
| 01/20/1988 | EP0253403A2 Diffraction grating using birefringence and optical head in which a linearly polarized beam is directed to a diffraction grating |
| 01/20/1988 | EP0253401A1 Optical recording disc |
| 01/20/1988 | EP0253328A2 Light spot position control system and method by sampling servo |
| 01/19/1988 | US4720826 Ventilation arrangement for use in an optical recording disc |
| 01/19/1988 | US4720825 Optical data reproducing devices having improved trick play capability |
| 01/19/1988 | US4720824 Information reading apparatus with a light beam scanning technique |
| 01/19/1988 | US4720715 Optical disc structure having an air sandwich structure |
| 01/19/1988 | US4720185 Drive and support structure of an objective lens |
| 01/19/1988 | CA1231780A1 Method for making a laser recordable wallet-size plastic card |
| 01/19/1988 | CA1231779A1 Three-beam optical servo tracking system with two- track parallel readout |
| 01/19/1988 | CA1231778A1 Sector mark decoder for an optical recorder |
| 01/19/1988 | CA1231777A1 Write protection and data detection using differential detection |
| 01/19/1988 | CA1231527A1 Information recording and reproducing apparatus |
| 01/14/1988 | DE3722078A1 Optical information storage medium and optical information recording device |
| 01/13/1988 | EP0252662A2 Information recording medium |
| 01/13/1988 | EP0252651A1 An objective lens driving unit |
| 01/13/1988 | EP0252562A1 Optical assembly comprising a holder and an optical element, and device provided with said optical assembly |
| 01/13/1988 | EP0252514A2 Optical recording medium |
| 01/13/1988 | EP0252513A2 Production of optical recording medium |
| 01/13/1988 | EP0252502A2 Optical information recording and reproducing apparatus with tracking control by sampling |
| 01/13/1988 | EP0252445A1 Apparatus for optically recording and reproducing information in record tracks on a rotatable record disc |
| 01/13/1988 | EP0252360A2 Optical recording medium |
| 01/13/1988 | CN87104584A Electronically adjustable position-sensitive radiation detector, focus-error detection system comprising such radiation detector |
| 01/12/1988 | US4719615 Erasable optical data storage medium |
| 01/12/1988 | US4719614 Optical recording-reading head using an adjustable mount for pivoting mirror |
| 01/12/1988 | US4719613 Optical recording medium having a reflective recording layer including a resinous binder and a naphthalocyanine dye |
| 01/12/1988 | US4719612 Method of detecting defects on an optical record medium and a device for carrying out the method |
| 01/12/1988 | US4719611 Apparatus for controlling a recording operation of an optical information recording apparatus |
| 01/12/1988 | US4719610 Objective lens velocity control system for use in an optical data storage system |
| 01/12/1988 | US4719594 Grooved optical data storage device including a chalcogenide memory layer |
| 01/12/1988 | US4719171 Optical disc |
| 01/12/1988 | US4719170 Optical recording material |
| 01/12/1988 | CA1231440A1 Read channel for optical recorder |
| 01/07/1988 | EP0251794A2 Method of producing an optical recording card |
| 01/07/1988 | EP0251666A2 Apparatus for recording and reproducing information |
| 01/07/1988 | EP0251601A2 Optical data recording/reproducing apparatus |
| 01/07/1988 | EP0251402A2 Electronically adjustable positionsensitive radiation detector, focus-error detection system comprising such a radiation detector, and optical read and/or write apparatus comprising such a focus-error detection system |
| 01/07/1988 | EP0251379A2 Object alignment and positioning method |
| 01/07/1988 | EP0251286A1 Optical information recording medium |
| 01/07/1988 | EP0251119A2 Light sensitive recording material |
| 01/07/1988 | EP0251117A1 Optical recording medium |
| 01/07/1988 | EP0251043A2 Use of chemical substances showing the LIESST effect as optical recording media |
| 01/07/1988 | DE3622532A1 Process and arrangement for reproducing digital data |
| 01/05/1988 | USRE32574 Method and apparatus for information retrieval from an optically readable storage medium |
| 01/05/1988 | US4718068 Stabilized laser device of optical information recording/reproduction apparatus |
| 01/05/1988 | US4718054 Servo error write blanking circuit for an optical recording disk |
| 01/05/1988 | US4718053 Optical information apparatus and method of recording and erasing information |
| 01/05/1988 | US4718052 Head assembly for optical disc |
| 01/05/1988 | US4718051 Optical beam tracking system for use in optical information recording and/or reproducing apparatus |
| 01/05/1988 | US4718050 Optical scanner and reader for information contained in light reflected from moving optical records |
| 01/05/1988 | US4717628 Magnetooptical storage element |
| 01/05/1988 | US4717508 Solid solutions, nitroanilines, quinodimethanes |
| 12/29/1987 | US4716560 Recording disc and method for fabricating same |
| 12/29/1987 | US4716559 Integrated optical device with improved isolation between the semiconductor laser and the photodetectors |
| 12/29/1987 | US4716558 Record disc addressing apparatus |
| 12/29/1987 | US4716557 Apparatus for information retrieval from an optically readable storage disc |
| 12/29/1987 | US4716289 Obturator disc for an optical transducer |
| 12/29/1987 | US4716283 Optical head for focusing a light beam on an optical disk |
| 12/29/1987 | US4716063 Transfer layer is composed of unsaturated cycloacetal compound, mercapto compound, and (meth)acrylic ester |
| 12/23/1987 | EP0250227A2 Method of producing an optical recording card and transfer type optical recording medium |
| 12/23/1987 | EP0249996A1 Optical recording and reproducing apparatus |
| 12/23/1987 | EP0249781A2 Compact disc (CD) player |
| 12/23/1987 | EP0249653A2 Reading device for the optical scanning of information recorded on a moving disc-shaped carrier |
| 12/22/1987 | US4715024 Optical head with provision for tracking and focussing control |
| 12/22/1987 | US4714667 Pyrylium, thiapyrylium or selenapyrylium dye |
| 12/22/1987 | CA1230637A1 Recording apparatus |
| 12/22/1987 | CA1230484A1 Optical storage system having expanded capacity |
| 12/17/1987 | WO1987007752A1 Pickup transfer device of an optical disk apparatus |
| 12/16/1987 | EP0249462A1 Recording disk reproducing apparatus |
| 12/16/1987 | EP0249199A1 Optoelectronic signal recording medium and method of making same |
| 12/16/1987 | EP0248907A1 Photochromic material, photochromic element and method of recording and erasing data |
| 12/15/1987 | US4713795 Cooling nitroprusside single crystals |
| 12/15/1987 | US4713707 Tracking mount for a contactless recording and/or reproducing head |
| 12/15/1987 | US4713314 Mixture of cyanine dye with a combination of cyanine dye cation with quencher anion |
| 12/15/1987 | US4712887 Optical system for fast access optical data storage device |
| 12/15/1987 | CA1230420A1 Tracking servo circuit for an optical pick-up |
| 12/15/1987 | CA1230419A1 Toon code for optical recording |
| 12/15/1987 | CA1230307A1 Conveyor system |
| 12/09/1987 | EP0248536A2 Methods of and apparatus for seeking a target address on a record medium |
| 12/09/1987 | EP0248444A2 Tracking servo system for an information recording disc player |