| 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) |
|---|
| 04/21/1992 | US5107101 Optical information processing apparatus with peak hold circuit for gain control signal |
| 04/21/1992 | US5106721 Exposing double layer recording element to laser light of different energy levels, forming optically readable bits; forming metal shell by electroless deposition followed by electroplating |
| 04/21/1992 | CA1299287C Data storage device having a phase change memory medium reversible by direct overwrite and method of direct overwrite |
| 04/21/1992 | CA1299286C Data storage device having a phase change memory medium reversible by direct overwrite |
| 04/16/1992 | WO1992006473A1 Disk recording and reproducing apparatus |
| 04/16/1992 | WO1992006472A1 Magneto-optical disk drive seek control system |
| 04/16/1992 | WO1992006471A1 Beam position control system of optical disk device |
| 04/16/1992 | WO1992006409A1 Motion picture digital sound system and method |
| 04/16/1992 | WO1992006124A1 Optical sheet material |
| 04/15/1992 | EP0480761A2 Track crossing detector for optical disk |
| 04/15/1992 | EP0480574A2 Optical data storage system with sector servo |
| 04/15/1992 | EP0480526A1 Erasable phase change optical recording elements and methods |
| 04/15/1992 | EP0480485A2 Integrated optic disc pickup |
| 04/15/1992 | EP0480268A2 Disk reproduction apparatus and track search method |
| 04/15/1992 | EP0480125A1 Phase change optical information recording medium |
| 04/14/1992 | US5105419 Carriage assembly |
| 04/14/1992 | US5105418 Disk drive with means to play either side of a disk |
| 04/14/1992 | US5105417 Apparatus for reproducing information out of optical record medium |
| 04/14/1992 | US5105416 Optical disc recording/reproducing control |
| 04/14/1992 | US5105415 Detecting magnetooptic and intensity-modulated optical signals with the same detector |
| 04/14/1992 | US5105413 Read-after-write optical recording device having a single radiation source and employing write modulation of such source |
| 04/14/1992 | US5105412 Recording medium playing apparatus for correcting audio signals using an appropriate sound field |
| 04/14/1992 | US5105411 Apparatus for detecting and correcting focusing and tracking errors |
| 04/14/1992 | US5105410 Multi-beam optical pick-up |
| 04/14/1992 | US5105409 Method and apparatus for optical recording and reproduction with tracking servo reducing track offset |
| 04/14/1992 | US5105408 Optical head with flying lens |
| 04/14/1992 | US5105407 Optical information-processing apparatus |
| 04/14/1992 | US5105406 Track-jumping servo apparatus for disc-shaped optical record medium |
| 04/14/1992 | US5105405 Objective lens driving device |
| 04/14/1992 | US5105404 Optical recording method and apparatus used to form a groove on a recording medium |
| 04/14/1992 | US5105403 Optical information reading apparatus with waveguide and diffraction grating |
| 04/14/1992 | US5105284 Digital copier operable with external storing medium |
| 04/14/1992 | US5105249 Radiation-sensitive semiconductor device having a transistor |
| 04/14/1992 | US5105076 Method and apparatus for detecting focusing errors utilizing chromatic aberration |
| 04/14/1992 | US5105072 Optical information recording/reproducing apparatus having stopping position deviation and correction circuitry relative to movement in the track direction |
| 04/14/1992 | US5104501 Electrolysis while stamping die is suspended on jig which is anode in aqueous alkaline solution; accuracy, pot life, defect reduction |
| 04/14/1992 | CA1298913C Optical memory card with versatile storage medium |
| 04/14/1992 | CA1298912C Protective layer for optical information recording medium |
| 04/14/1992 | CA1298728C Optical memory element and manufacturing method thereof |
| 04/09/1992 | DE4115159A1 Optical recording material - has light reflecting layer on light absorbing layer contg. specified cyanine dye and quencher on light permeable substrate |
| 04/09/1992 | DE4112402A1 Optical recording material for high storage capacity - has substrate and recording film contg. phthalocyanine dye and light-absorber, for contactless operation |
| 04/09/1992 | DE4029099A1 Data carrier injection mouldmfr. - has base plate layer structured to a mask laser beam for anisotropic etching and subsequplating |
| 04/08/1992 | EP0479703A1 Method and apparatus for positioning transducers |
| 04/08/1992 | EP0479577A2 Optical recording medium and process for producing the same |
| 04/08/1992 | EP0479535A2 File managing method |
| 04/08/1992 | EP0479521A2 Operational mode control for data storage apparatus using storage disk |
| 04/08/1992 | EP0479491A2 Reproducing apparatus for modifying signals read back from recorded data to avoid signal errors |
| 04/08/1992 | EP0479475A2 Disk storage apparatus |
| 04/08/1992 | EP0479473A2 Apparatus for and method of counting the number of tracks on an optical disk |
| 04/08/1992 | EP0479340A2 Optical record cards |
| 04/08/1992 | EP0479339A2 Optical record cards |
| 04/08/1992 | EP0478989A1 Method of reading optical discs |
| 04/08/1992 | EP0478714A1 Master for optical element replication |
| 04/08/1992 | CN1060174A Optical disc recording apparatus |
| 04/08/1992 | CN1060173A Disc-shaped recording medium |
| 04/08/1992 | CN1060172A Anti-skating control of positioning servo system |
| 04/08/1992 | CN1060159A Aquiring best focus using focus signal offset |
| 04/07/1992 | US5103443 Optical recording medium with high absorption and high reflectivity |
| 04/07/1992 | US5103441 Duty factor control circuit with variable output pulse width function |
| 04/07/1992 | US5103440 Track access error correction apparatus for moving an optical head from one track location to another track location on an optical disc |
| 04/07/1992 | US5103439 Beam focus control system for optical record carrier scanning apparatus |
| 04/07/1992 | US5103438 Optical pickup device having yoke with a central u-shaped base and inverted u-shaped portions connected thereto |
| 04/07/1992 | US5103436 Tilt servo device in optical disc player |
| 04/07/1992 | US5103345 Optical head |
| 04/07/1992 | US5103344 Optical pickup |
| 04/07/1992 | US5102739 High performance, durability |
| 04/07/1992 | US5102709 Multilayer; resinous substrate, laminate film containing dielectric, recording layer and protective film |
| 04/07/1992 | US5102708 Multilayer; plasma polynerization of fluoropolymer, then sputtering metal layer |
| 04/07/1992 | US5102608 Method for the manufacture of objects from polycarbonate |
| 04/07/1992 | US5102099 Disc polisher apparatus |
| 04/07/1992 | CA1298654C Tracking method and apparatus for optical recording medium |
| 04/07/1992 | CA1298652C Optical recording card and method of reading the same |
| 04/07/1992 | CA1298512C Light receiving member with support having a plurality of spherical dimples |
| 04/02/1992 | WO1992005547A1 Process for producing injection moulds |
| 04/02/1992 | WO1992005546A1 Optical data recording/reproducing apparatus |
| 04/02/1992 | DE4030510A1 Optical storage medium with reversible phase transitions - comprising tellurium-arsenic-germanium amorphous-crystalline layer on glass substrate |
| 04/02/1992 | CA2046707A1 Optical disk players having readback circuits with noise rejection and read signal retiming |
| 04/02/1992 | CA2046706A1 Controlling an optical disk drive using a mode set command |
| 04/01/1992 | EP0478380A1 Organic thin film element |
| 04/01/1992 | EP0478367A2 Control of light beam focusing system in optical data storage apparatus |
| 04/01/1992 | EP0478329A1 Calibrating the light beam of an optical data storage system on insertion of a storage member |
| 04/01/1992 | EP0478324A1 Positioning servo system |
| 04/01/1992 | EP0478323A2 Method of determining correctness and contents of control data structures in moving media data storage systems |
| 04/01/1992 | EP0478314A2 Optical disk drive apparatus including tracking error signal calibration |
| 04/01/1992 | EP0478312A2 Optical disk drive initialisation method |
| 04/01/1992 | EP0478276A2 Disk storage system |
| 04/01/1992 | EP0478275A2 A method of and apparatus for controlling laser power in an optical disk drive |
| 04/01/1992 | EP0478227A1 Recovery of track following operation in an optical disk drive apparatus |
| 04/01/1992 | EP0478222A2 Optical pickup using holographic optical element |
| 04/01/1992 | EP0478202A1 Calibrating a data storage system relative to a removable data storage disk mounted in the system |
| 04/01/1992 | EP0478201A1 Re-writable data storage medium and data storage system including such a medium |
| 04/01/1992 | EP0478200A1 Optical disk drive apparatus |
| 04/01/1992 | EP0478163A1 Multi-beam optical recording system and method |
| 04/01/1992 | EP0478052A1 Liquid-crystalline and infrared-sensitive liquid-crystalline polyesters suitable for use in optical data storage, processes for the preparation of same, and an apparatus containing an infrared-sensitive liquid-crystalline polyester |
| 04/01/1992 | EP0477915A2 Device for detecting traveling speed of pickup |
| 04/01/1992 | EP0477892A2 Method of and apparatus for correcting edge interval of pit in optical recording/read-out apparatus |
| 04/01/1992 | EP0477847A2 Focusing-error detecting apparatus |
| 04/01/1992 | EP0477815A1 Portable disc player |
| 04/01/1992 | EP0477447A1 Method for manufacturing an optical storage device |
| 04/01/1992 | EP0477373A1 Metal chelate compound and optical recording medium comprising the same |