| 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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| 05/27/1997 | US5633848 Method and apparatus for cleaning an optical disk head on the basis of time accumulation |
| 05/27/1997 | US5633847 Apparatus for recording on and playback from both sides of a disk shaped recording medium |
| 05/27/1997 | US5633846 Positioning device for optical disc apparatus |
| 05/27/1997 | US5633845 Optical information recording and reproducing apparatus having reproducing light beams radiated onto regions situated behind and in front of a spot formed by a recording light beam |
| 05/27/1997 | US5633844 Optical pickup device with three beam tracking servo control using oval beams |
| 05/27/1997 | US5633841 Optical disc recording/reproducing apparatus having automatic protection of previously recorded data |
| 05/27/1997 | US5633840 Method of setting an initial position of a pickup based on disk recognition and a disk player therefor |
| 05/27/1997 | US5633746 Magneto-optical recording medium |
| 05/27/1997 | US5633370 Naphthalocyanine compounds, naphthalocyanine polymers and method for making |
| 05/27/1997 | US5633106 Optical recording media and a method of recording and reproducing information |
| 05/27/1997 | US5633060 Contains a significant proportion of 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane |
| 05/22/1997 | WO1997018561A2 Mehods and apparatus for high speed optical storage device |
| 05/22/1997 | WO1997018560A1 Track detection methods and apparatus for simultaneous electronic monitoring of multiple adjacent tracks of an optical disk |
| 05/22/1997 | WO1997018559A1 Method and apparatus for high speed optical storage device |
| 05/22/1997 | WO1997018558A1 Electronic track detection methods for apparatus for simultaneously reading multiple adjacent tracks of an optical disk |
| 05/22/1997 | WO1997018557A2 Methods and apparatus for reducing the access time of an optical drive |
| 05/22/1997 | DE19544145A1 Compact disc external shape machining device |
| 05/22/1997 | CA2189719A1 Apparatus for and method of recording information on or reproducing information from recording medium |
| 05/21/1997 | EP0774751A2 Optical pickup device for reproducing optical disks of different types |
| 05/21/1997 | EP0774495A1 Optical recording elements containing new polymeric cyanine dyes with reduced bubble formation |
| 05/21/1997 | EP0774336A1 Fixed side and movable side disk cavity plates aligning and guiding apparatus in disk injection molding dies |
| 05/21/1997 | EP0774335A1 Means for holding stamper plate in molding metal die |
| 05/21/1997 | CN1150491A Optical recording medium exhibiting eutectic phase equilibria |
| 05/21/1997 | CN1150369A Apparatus for video CD (compact disc) |
| 05/21/1997 | CN1150304A Signal binary coding circuit and digital signal processing apparatus |
| 05/21/1997 | CN1150296A Objective lens and optical head apparatus using objective lens |
| 05/21/1997 | CN1150295A Objective lens driving apparatus |
| 05/21/1997 | CN1150294A Recording medium, recording apparatus and reproducing apparatus |
| 05/21/1997 | CN1150293A Recording medium capable of carry-out interactive replay and replay system thereof |
| 05/20/1997 | US5631895 Optical information recording medium |
| 05/20/1997 | US5631893 Multi-head device for optical disk and recording/reproducing system for multiple users utilizing the same |
| 05/20/1997 | US5631892 Optical storage disc scanner with improved scanner positioning |
| 05/20/1997 | US5631891 Disk reproducing circuit with automatic gain control |
| 05/20/1997 | US5631890 Light modulation method for optical disk drive device |
| 05/20/1997 | US5631889 Optical storage apparatus with a focused mass storage medium |
| 05/20/1997 | US5631888 Master disc recording apparatus and method for recording data on different types of master discs |
| 05/20/1997 | US5631887 Pulse width modulation optical disk drive with adjustable pulsed laser write and preheat patterns |
| 05/20/1997 | US5631886 Tracking control apparatus for optical disk |
| 05/20/1997 | US5631885 Waveguide-gratings used for analysis of optical beams constructed as dual-pitch double surface corrugations |
| 05/20/1997 | US5631884 Compact-disc changer using the same optical pickup device used for playing disc for sensing roulette position |
| 05/20/1997 | US5631817 Load current control of pulse width modulated drive signal including calibration and correction coefficient |
| 05/20/1997 | US5631786 Information storage system |
| 05/20/1997 | US5631774 Polarizing beam splitter and optical pick-up head comprising the same |
| 05/20/1997 | US5631488 Semiconductor integrated circuit device |
| 05/20/1997 | US5631408 Method of making disk bumps with laser pulses |
| 05/20/1997 | US5631056 Optical recording medium |
| 05/20/1997 | US5630902 Apparatus for use in high fidelty replication of diffractive optical elements |
| 05/20/1997 | US5630886 Corrosion-resistant film for protecting surfaces of Ag and corrosion-resist composite structures |
| 05/20/1997 | CA2086289C Optical information recording and reproducing apparatus |
| 05/20/1997 | CA2080057C Information recording/reproducing apparatus for optical information recording medium |
| 05/20/1997 | CA2077950C Apparatus for optically recording and reproducing information |
| 05/15/1997 | WO1997017652A1 Information processing apparatus and method |
| 05/15/1997 | DE19646432A1 Injection moulding of e.g. carbonate] optical data disks in multiple cavities without pre-drying plastic |
| 05/14/1997 | EP0773545A2 Optical disk recording device, disk playback device and optical disk system |
| 05/14/1997 | EP0773543A2 Optical recording method with stabilized data overwriting using laser beam intensity settings |
| 05/14/1997 | EP0773542A2 Multiple data surface optical medium and data storage system |
| 05/14/1997 | EP0773541A2 Multiple data surface optical medium and data storage system |
| 05/14/1997 | EP0773540A2 Stabilised optical overwriting method using laser beam intensity settings |
| 05/14/1997 | EP0773539A1 Optical pickup and supporting method therefor |
| 05/14/1997 | EP0773538A2 Objective lens driving apparatus |
| 05/14/1997 | EP0773537A2 Drive apparatus for objective lens |
| 05/14/1997 | EP0773536A2 A reproducing apparatus for information recording medium |
| 05/14/1997 | EP0773511A1 Information recording medium and information reproducing device |
| 05/14/1997 | EP0773372A2 Rotation holding table for rotating and holding a storage disc thereon and a boss thereof |
| 05/14/1997 | EP0772875A1 Process for manufacturing optical data storage disk stamper |
| 05/14/1997 | EP0772874A1 Internally-damped rotatable information-storage article |
| 05/14/1997 | EP0772662A1 Liquid-crystalline glasses |
| 05/14/1997 | EP0664919B1 Recording medium and appliance for generating sounds and/or images |
| 05/14/1997 | CN1149724A Lens device, ultraviolet emission device and optical disk recording device |
| 05/13/1997 | US5630165 Servo system controlled by master and second processors through memory being accessed for read and write by processors in separate portions respectively |
| 05/13/1997 | US5630115 Method of rewriting information on a record medium by rewriting only changed portions |
| 05/13/1997 | US5630104 Apparatus and method for providing multimedia data |
| 05/13/1997 | US5630006 Multi-scene recording medium and apparatus for reproducing data therefrom |
| 05/13/1997 | US5629924 Optical disk having synchronous marks and data marks to satisfy certain criteria |
| 05/13/1997 | US5629921 Level detector for detecting a voltage level of a signal |
| 05/13/1997 | US5629919 Optical had |
| 05/13/1997 | US5629917 Integrated optical pick-up emits light beams of selective wavelengths to an optical disk with multiple data layers |
| 05/13/1997 | US5629916 Optical information reproducing device forming light spot on photo-detector with major axis along push-pull signal detection |
| 05/13/1997 | US5629914 Data-transition threshold following in optical recording |
| 05/13/1997 | US5629913 Optical disk recording control method and apparatus for recording user data based on test signal |
| 05/13/1997 | US5629912 Apparatus for reproducing signals recorded on an optical disc |
| 05/13/1997 | US5629911 Optical information recording/reproduction apparatus including an integrated photodetector used in the detection of focusing and/or tracking error signals |
| 05/13/1997 | US5629809 Optical pickup for reproducing information on a disc |
| 05/13/1997 | US5629799 Chromatic aberration correcting element and its application |
| 05/13/1997 | US5629514 Critical angle focus error detector |
| 05/13/1997 | US5629044 Compact disc coating and handling system |
| 05/13/1997 | US5628468 Optical tape cassette |
| 05/13/1997 | CA2064633C Adjusting amplitude detection threshold by feeding back timing-data phase errors |
| 05/13/1997 | CA2044969C Optical recording medium and recording method |
| 05/09/1997 | WO1997016368A1 Linear guide arrangement, device comprising a linear guide arrangement and a head for reading and/or writing information from/on a medium, and information reproducing and/or recording apparatus comprising a linear guide arrangement |
| 05/09/1997 | CA2234773A1 Constrained layer damper with slit(s) or cutout(s) |
| 05/07/1997 | EP0772198A2 Record medium with managed digest portions of programs, reproducing apparatus therefor and reproducing method thereof |
| 05/07/1997 | EP0772192A2 Optical disc reproducing apparatus |
| 05/07/1997 | EP0772189A2 Exposure apparatus and method |
| 05/07/1997 | EP0772039A2 Fiber optical apparatus |
| 05/07/1997 | EP0771677A1 Laser-marking laminated structure and laser-marked laminated structure |
| 05/07/1997 | EP0458975B1 Optical recording apparatus |
| 05/07/1997 | DE19644973A1 Optic reception device for data recording arrangement |
| 05/07/1997 | DE19545943C1 Vorrichtung zum Beschichten von scheibenförmigen Informations-Speichermedien Device for coating disc-shaped information storage media |
| 05/07/1997 | CN1149176A Optical pickup system |