| 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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| 05/07/1985 | US4515879 Optical mass memory system using electrophotography |
| 05/07/1985 | CA1186570A1 Method for forming video discs |
| 05/02/1985 | EP0139507A1 Island record films; fabrication |
| 05/02/1985 | EP0139478A1 Improved method for overcoating optical recording media |
| 05/02/1985 | EP0139354A1 Optical disc structure and related method of manufacture |
| 05/02/1985 | EP0139332A2 Apparatus for reproducing information from a disc-shaped optically readable record carrier |
| 05/02/1985 | EP0139315A1 Apparatus for reading a disk-shaped optical record carrier |
| 05/02/1985 | EP0138947A1 System for sensing the rotational position of a rotating disk having coarse seek tracks |
| 04/30/1985 | US4514837 Apparatus for optically reading and/or recording information |
| 04/30/1985 | US4514439 Uniformly coating an information disk with acrylic monomer; radiation curing |
| 04/30/1985 | US4514357 Production of molded articles having excellent optical characteristics |
| 04/30/1985 | US4514055 Information transferring systems operating on a recording medium |
| 04/25/1985 | WO1985001824A1 Process for evaluating a subcode |
| 04/25/1985 | WO1985001822A1 Island record films: fabrication |
| 04/25/1985 | WO1985001818A1 Quad density optical data system |
| 04/24/1985 | EP0138381A1 Process for forming a protective coating on an information storage device |
| 04/24/1985 | EP0138277A2 Apparatus for reproducing information from an optically readable record carrier |
| 04/24/1985 | EP0138275A2 Apparatus for reproducing information from an optically readable record carrier |
| 04/24/1985 | EP0138274A1 Apparatus for reproducing digital information via a transmission medium |
| 04/24/1985 | EP0138273A1 Apparatus for reproducing information from an optically readable record carrier |
| 04/24/1985 | EP0138246A2 Disc playback apparatus |
| 04/24/1985 | EP0138245A1 Apparatus for reading a disc-shaped record carrier |
| 04/24/1985 | EP0138026A2 Phase retardation element and prism for use in an optical data storage system |
| 04/24/1985 | EP0137855A1 Data transfer system using digital disc |
| 04/23/1985 | US4513408 Error detecting system of video/audio disc player |
| 04/23/1985 | US4513407 Device for optical recording and read-out of data along a prerecorded track |
| 04/23/1985 | US4513406 Positioning servo circuit for a disk system |
| 04/17/1985 | EP0137760A1 Improved overcoat for optical recording media |
| 04/17/1985 | EP0137697A1 Method of producing an optical information recording medium |
| 04/17/1985 | EP0137682A2 Optical sound track playback apparatus and method |
| 04/17/1985 | EP0137425A1 Method for detecting a subcode |
| 04/17/1985 | EP0137283A1 Optical head device |
| 04/17/1985 | EP0137272A2 Automatic focusing device |
| 04/17/1985 | EP0137246A2 Metal mold and stamper for injection molding of a plastic disc for a high-density information recording carrier |
| 04/17/1985 | EP0137237A1 Pickup for optical information recording/reproducing apparatus |
| 04/16/1985 | US4512006 Optical type information read/write apparatus |
| 04/16/1985 | US4512005 Information reproducing apparatus in a recording disc player |
| 04/16/1985 | US4512004 Apparatus for optically reproducing an information signal recorded on a record disc |
| 04/16/1985 | US4512003 Control circuitry for preliminary focusing of light on a record medium surface in an optical reproducing apparatus |
| 04/16/1985 | US4512002 Tracking servo system of recording disc information recording and reproducing apparatus |
| 04/16/1985 | US4511930 Electro-optical information recording and reproduction system |
| 04/16/1985 | US4511212 For use in an apparatus for reading video and/or audio information |
| 04/16/1985 | US4511194 Magazine and disc holders for supporting discs in the magazine |
| 04/16/1985 | CA1185697A1 Protuberant optical recording medium |
| 04/11/1985 | WO1985001606A1 A composite photo-sensitive detector array for optical disk storage systems |
| 04/11/1985 | WO1985001605A1 Tracking servo circuit for optical disk |
| 04/10/1985 | EP0136882A1 Data processing circuit for digital audio system |
| 04/10/1985 | EP0136801A2 Recording Material |
| 04/10/1985 | EP0136574A1 Magneto-optical apparatus |
| 04/10/1985 | EP0136445A1 Transportsystem |
| 04/10/1985 | EP0136346A1 Information storage medium and method of recording and retrieving information thereon |
| 04/09/1985 | US4510593 Information disk of grooved, metal-coated crosslinked polymeric layer |
| 04/09/1985 | US4510508 Optical disc pressure-collapsible cover |
| 04/09/1985 | US4510279 Methacrylate resin composition for optical information recording medium |
| 04/09/1985 | US4510232 Radiation sensitive zinc-sulfur mixture in discrete surface depressions |
| 04/09/1985 | US4509830 Light beam separation method |
| 04/03/1985 | EP0136070A1 Erasable optical data storage medium and method for recording data on the medium |
| 04/03/1985 | EP0136051A1 Disc recording and/or reproducing apparatus |
| 04/03/1985 | EP0136041A1 Optical memory disc |
| 04/03/1985 | EP0135969A2 Optical disc player |
| 04/03/1985 | EP0135750A2 Optical information recording and reproducing apparatus |
| 04/03/1985 | EP0135567A1 Position control structure for flexible, edge-constrained optical discs |
| 04/02/1985 | US4509162 High density recording medium |
| 04/02/1985 | US4509161 Optically readable information disc provided with a reflective optical structure |
| 04/02/1985 | US4509156 Semiconductor laser driving system |
| 04/02/1985 | US4509154 Optical disk apparatus |
| 04/02/1985 | US4509145 Electrically biased optical storage medium |
| 04/02/1985 | US4508811 Optical recording |
| 04/02/1985 | US4508450 System for checking defects on a flat surface of an object |
| 04/02/1985 | CA1185012A1 Optical disc unit, fabrication method and cooperating write and/or read apparatus |
| 04/02/1985 | CA1185010A1 Optical disc structure, method and apparatus physically optimized for writing and reading with a single wavelength |
| 03/28/1985 | WO1985001402A1 Sync pattern encoding system for data sectors written on a storage medium |
| 03/28/1985 | WO1985001382A1 Optically storing digital data |
| 03/28/1985 | WO1985001381A1 Preformatted diagnostic information recording disk |
| 03/28/1985 | WO1985001380A1 Optical disk format employing resynchronizable data sectors |
| 03/28/1985 | WO1985001228A1 Improved method for overcoating optical recording media |
| 03/28/1985 | WO1985001227A1 Improved overcoat for optical recording media |
| 03/27/1985 | EP0135370A1 Information recording member |
| 03/27/1985 | EP0135203A1 Composition for an optically readable information carrier |
| 03/27/1985 | EP0135047A1 A method of producing a hologram lens |
| 03/26/1985 | US4507774 Optical disc and disc-turntable air flow interface assembly |
| 03/26/1985 | US4507773 High efficiency precision laser beam switch |
| 03/26/1985 | US4507772 Playback optical system for video discs |
| 03/26/1985 | US4507767 Control circuit for controlling light source in optical disc device |
| 03/26/1985 | US4507766 Optical device for optically recording and reproducing information signals on an information carrier |
| 03/26/1985 | US4507765 Optical track scanner |
| 03/26/1985 | US4507764 Objective lens drive device with tracking error correction with flux of opposite direction |
| 03/26/1985 | US4507763 Optical information recording and/or reproducing apparatus and optical record medium for use in such apparatus |
| 03/26/1985 | US4507180 Method of electrodepositing a homogeneously thick metal layer, metal layer thus obtained and the use of the metal layer thus obtained, device for carrying out the method and resulting matrix |
| 03/20/1985 | EP0134500A2 Polymeric dye |
| 03/20/1985 | EP0134428A1 Reading device for the optical scanning of information recorded on a moving disc-shaped carrier |
| 03/20/1985 | EP0041982B1 A method for recording signals on bands by means of laser beams and apparatus for carrying out the method |
| 03/19/1985 | US4506355 Method and apparatus for information retrieval from an optically readable storage medium |
| 03/19/1985 | US4506303 Optical data recorder system |
| 03/19/1985 | US4506153 Process signal collecting apparatus |
| 03/19/1985 | US4506149 Tracking servo signal generating device in an apparatus for reading recorded information |
| 03/19/1985 | US4505938 Process for producing a seasoning |
| 03/19/1985 | US4505585 System for detecting defects on an optical surface |
| 03/19/1985 | US4505584 Method and apparatus for detecting focussing error signal of objective lens |
| 03/19/1985 | CA1184298A1 Optically readable information disc and method of manufacturing same |