| 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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| 07/29/1987 | EP0230275A2 Reader/writer apparatus for optical memory card |
| 07/29/1987 | EP0230240A2 Optical recording carrier |
| 07/29/1987 | EP0230069A1 Card and Device for the transfer of data between the card and a data processing unit |
| 07/29/1987 | EP0230024A2 Optical recording medium having a stabilized recording layer |
| 07/29/1987 | EP0229914A2 Vapor masking device |
| 07/28/1987 | US4683562 Optical information recording disk |
| 07/28/1987 | US4683561 Smooth lock-in of servo control when switched on |
| 07/28/1987 | US4683560 Microprocessor controlled focussing servo acquisition |
| 07/28/1987 | US4683559 Optical pickup with a two-detector arrangement |
| 07/28/1987 | US4683371 Dual stripe optical data card |
| 07/28/1987 | CA1224872A1 Optical-focus-position controlling apparatus |
| 07/28/1987 | CA1224786A1 Polymeric dye |
| 07/22/1987 | EP0229650A2 Optical recording medium, process for its manufacture and its use as read only memory information carrier |
| 07/22/1987 | EP0229395A2 Optical magnetic recording and reproducing method and apparatus |
| 07/22/1987 | EP0229140A1 Reproduction of optical data storage media |
| 07/21/1987 | US4682321 Two thin films converted to one with laser |
| 07/21/1987 | US4682318 Method and apparatus for updating optical memory disc |
| 07/21/1987 | US4682317 Subcode signal reading circuit in an optical type disc player |
| 07/21/1987 | US4682316 Optical information processing apparatus for light beam focus detection and control |
| 07/21/1987 | US4682315 Focussing error detection device for use in optical disk type recording system |
| 07/21/1987 | US4682314 Disc playback apparatus |
| 07/21/1987 | US4682312 Disc player with search noise suppression |
| 07/21/1987 | US4682305 Storage system |
| 07/21/1987 | US4681925 Fluorinated polyacrylates and polyacrylamides having a controlled cross-linking degree, and process for preparing same |
| 07/21/1987 | US4681834 Light absorptive layer; laser beams |
| 07/21/1987 | US4681373 Wheel slip control system |
| 07/16/1987 | DE3600902A1 Optical recording medium and process for its production |
| 07/15/1987 | EP0229035A2 Optical recording/reproducing of information signals |
| 07/15/1987 | EP0228848A2 Disc reproducing apparatus |
| 07/15/1987 | EP0228814A1 An optical memory element |
| 07/15/1987 | EP0228646A2 A signal processing apparatus for disc memory devices |
| 07/15/1987 | EP0228620A2 Optical head comprising a diffraction grating for directing two or more diffracted beams to optical detectors |
| 07/15/1987 | EP0228451A1 Optical recording device |
| 07/14/1987 | US4680745 Optical disk recording apparatus |
| 07/14/1987 | US4680744 Disc player having pick-up tilt servo system combined with disc presence detection circuits |
| 07/14/1987 | US4680743 Optical parts driving mechanism in optical information reader |
| 07/14/1987 | US4680594 Single beam direct read during write and write protect system for use in an optical data storage system |
| 07/14/1987 | US4680460 System and method for making recordable wallet-size optical card |
| 07/14/1987 | US4680459 Updatable micrographic pocket data card |
| 07/14/1987 | US4680458 Laser recording and storage medium |
| 07/14/1987 | US4680456 Data system employing wallet-size optical card |
| 07/14/1987 | US4680375 Polymeric cyanine dye |
| 07/14/1987 | US4680374 Radiation transparent |
| 07/14/1987 | US4680359 Molding compositions for optically readable information-storage media |
| 07/14/1987 | US4680211 Recording disks |
| 07/14/1987 | US4679904 Lens driving device for an optical pickup unit with simplified construction |
| 07/14/1987 | US4679903 Objective lens driving device |
| 07/14/1987 | CA1224269A1 Apparatus for reproducing information from an optically readable record carrier |
| 07/14/1987 | CA1224267A1 Optical disc players |
| 07/14/1987 | CA1224266A1 Selective scrambling in the compact disc system |
| 07/14/1987 | CA1224161A1 Optical memory disc |
| 07/14/1987 | CA1224035A1 Erasable, reusable optical recording elements having heat-deformable recording layers |
| 07/08/1987 | EP0228257A2 Optical data recording and reproducing apparatus with erase function diagnosis |
| 07/08/1987 | EP0228227A2 Apparatus for urging an axially movable member to a neutral axial position |
| 07/08/1987 | EP0228169A2 Organic nonlinear optical media |
| 07/08/1987 | EP0228055A2 Driving equipment for objective lens |
| 07/08/1987 | EP0227981A2 Production method of an optical recording medium |
| 07/08/1987 | EP0131032B1 Recording medium for optical data storage |
| 07/08/1987 | CN86106926A Photoelectric scanning head |
| 07/07/1987 | US4679185 Pivotal-arm device for a disc scanning unit |
| 07/07/1987 | US4679184 Optical recording and reproducing apparatus having erasing beam spot with asymmetrical intensity distribution |
| 07/07/1987 | US4679102 Method and means for parking read/write heads in a disc drive using the back-EMF of the spindle motor to operate a stepper motor |
| 07/07/1987 | US4678736 Optical recording media on which information is stored and method of making same |
| 07/07/1987 | US4678276 Objective lens drive/support mechanism in an optical disc player |
| 07/01/1987 | EP0227530A1 Method for recording with updating and for the reproduction of data on a non-erasable sectorial record carrier |
| 07/01/1987 | EP0227445A2 Methods of and apparatus for focusing servo control |
| 07/01/1987 | EP0227395A1 Method for recording and reproducing information |
| 07/01/1987 | EP0227380A1 Information recording medium and process for reproducing information therefrom |
| 07/01/1987 | EP0227253A1 Decoding apparatus |
| 07/01/1987 | EP0227158A1 Device for determining a centring error of an information structure in an optical record, record-scanning apparatus provided with such device and record carrier for use in this apparatus |
| 07/01/1987 | EP0227071A2 Video disc reproducing apparatus |
| 07/01/1987 | EP0227044A1 Optical disc apparatus |
| 07/01/1987 | EP0226960A1 Synchronous control system |
| 07/01/1987 | EP0226945A2 Coated media for optical recording, with "soft/hard" overcoat |
| 07/01/1987 | EP0226944A2 Coated media for optical recording with acrylic overcoat |
| 07/01/1987 | EP0226943A2 Coated media for optical recording, associated acrylic coatings and related application methods |
| 07/01/1987 | EP0226647A1 Read/write head for optical disks |
| 07/01/1987 | CN86108556A Signal processing device for disk storage apparatus |
| 07/01/1987 | CN86105002A Optical scanning unit |
| 07/01/1987 | CN86104346A Contact lenses and the mfr. method therefor |
| 06/30/1987 | US4677606 Data recording and reproducing method |
| 06/30/1987 | US4677605 Focus acquisition and maintenance for optical disk system |
| 06/30/1987 | US4677604 Visual display system for aiding pilots |
| 06/30/1987 | US4677603 Optical recording and/or reproducing apparatus with synchronous fine and coarse adjusting mechanisms |
| 06/30/1987 | US4677602 Device for controlling recording track jump operations with over-run correction |
| 06/30/1987 | US4677601 Method of forming permanent memory locations in a magnetooptic memory medium |
| 06/30/1987 | US4676646 Method and apparatus for controlling thickness of a layer of an optical data storage device by measuring an optical property of the layer |
| 06/24/1987 | EP0226403A2 Optical head apparatus |
| 06/24/1987 | EP0226168A2 Information recording medium |
| 06/24/1987 | CN86102515A Laser magnetic recording grafting technique and recording carrier thereof |
| 06/23/1987 | US4675857 System for reproducing information from an optically readable record carrier, apparatus for use in said system, and record carrier for use in said system |
| 06/23/1987 | US4675749 Disc player system with digital information demodulation operation |
| 06/23/1987 | US4675748 Time-base correcting device used in a disk reproducing device |
| 06/23/1987 | US4675423 Camphordithiolene complexes |
| 06/23/1987 | US4675227 Radiation curable unsaturated compound layer; high information density |
| 06/23/1987 | US4674547 Container filling apparatus with adjustable pressure sealing means |
| 06/23/1987 | CA1223350A1 Optical recording disc |
| 06/23/1987 | CA1223348A1 Optical information reproducing apparatus |
| 06/18/1987 | WO1987003731A1 Process for searching for a track on a rotating plate-like information support and circuit for performing the process |
| 06/16/1987 | US4674081 Mobil pre-etched data carrier |