| 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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| 01/05/1993 | US5177383 Voice coil motor |
| 01/05/1993 | US5177227 Photochromic naphthacenequinones, process for their preparation and the use thereof |
| 01/05/1993 | US5177218 Photochromic benzothioxanthone oxides, process for their preparation and the use thereof |
| 01/05/1993 | US5176943 Optical recording medium with antistatic hard coating |
| 12/30/1992 | EP0520813A2 Magneto-optical recording and reproducing apparatus |
| 12/30/1992 | EP0520734A2 Read error compensations in data storage systems |
| 12/30/1992 | EP0520619A1 Optical information recording medium |
| 12/30/1992 | EP0520559A2 Optical detection device |
| 12/30/1992 | EP0520506A1 Process for producing grafted polycarbonate resin |
| 12/30/1992 | EP0520461A2 Optical disk record/reproduction device |
| 12/30/1992 | EP0520381A2 Optical recording apparatus |
| 12/30/1992 | EP0520312A1 Television sync and phase detector disable circuit |
| 12/30/1992 | EP0520251A2 Disc-shaped memory for binary information |
| 12/30/1992 | EP0344317B1 Optical data recording medium |
| 12/30/1992 | EP0277235B1 Optical disc |
| 12/30/1992 | CN1067521A Multiple data surface data storage system and method |
| 12/30/1992 | CN1019705B Optical disk reproducing device and optical disk reproducing method |
| 12/30/1992 | CN1019702B Process for preparation of optical recording medium |
| 12/30/1992 | CN1019701B Optically readable record carrier of inscribable type, apparatus for manufacturing such a record carrier, and apparatuses for recording and/or reading information on/from such record carrier |
| 12/29/1992 | US5175725 Optical disk arrangement with closed contours whose entire extent represents information |
| 12/29/1992 | US5175723 Direct drive mechanism for data pickup carriage with no direct attachment between motor and frame |
| 12/29/1992 | US5175722 Power supply circuit for stabilizing power input to a laser diode |
| 12/29/1992 | US5175720 Interactive optical disk |
| 12/29/1992 | US5175719 Apparatus for detecting an unrecorded optical disc |
| 12/29/1992 | US5175718 Optical pickup apparatus having set positions of deflecting prism and objective lens |
| 12/29/1992 | US5175717 Optical head having a fixed optical casing and a movable optical casing |
| 12/29/1992 | US5175716 Method for searching a track at high speed in an optical recording/reproducing apparatus |
| 12/29/1992 | US5175642 Light source unit capable of changing size of light beam spot and optical scanning image recording apparatus using the same |
| 12/29/1992 | US5175079 Optical memory device |
| 12/29/1992 | US5175043 Aromatic polymer molded article with modified surface condition and process for producing the same |
| 12/29/1992 | US5175030 Microstructure-bearing composite plastic articles and method of making |
| 12/29/1992 | US5174937 Method for molding of substrate for information recording medium and method for preparing substrate for information recording medium |
| 12/25/1992 | CA2071689A1 Optical tape |
| 12/23/1992 | WO1992022898A1 Method for recording on disc |
| 12/23/1992 | WO1992022894A1 Optical data storage disc |
| 12/23/1992 | WO1992022590A1 Hydrogenated thermoplastic norbornene polymer, production thereof, and optical element base, optical element and lens molded therefrom |
| 12/23/1992 | EP0519768A2 High density information storage carrier and method of reading such a carrier |
| 12/23/1992 | EP0519684A2 Reading signals for optical storage media |
| 12/23/1992 | EP0519633A1 Data storage media |
| 12/23/1992 | EP0519629A1 Recording media |
| 12/23/1992 | EP0519461A2 Servo circuit for an optical pick-up of disc playing apparatus |
| 12/23/1992 | EP0519423A2 Phthalocyanine compounds and usage thereof |
| 12/23/1992 | EP0519419A2 Amorphous phthalocyanine compound or mixture of amorphous phthalocyanine compounds, and method for preparing same |
| 12/23/1992 | EP0519395A1 Sulfonamido or amido substituted phthalocyanines for optical recording |
| 12/23/1992 | EP0519040A1 A method and apparatus for recording and reading an image |
| 12/23/1992 | EP0519018A1 Membrane memory system |
| 12/23/1992 | EP0518891A1 Optical information card |
| 12/23/1992 | CN1019613B Circuit device for identifying type of optical recording medium |
| 12/22/1992 | US5173890 Optical pickup device including diffraction grating |
| 12/22/1992 | US5173889 Multi-loaded disk drive arrangement |
| 12/22/1992 | US5173887 Disk player pickup control system |
| 12/22/1992 | US5173886 Composite optical disc having both a data read-only area and a data rewritable area, and a recording/reproducing system for use therewith |
| 12/22/1992 | US5173809 Objective lens system of optical information recording/reproducing apparatus |
| 12/22/1992 | US5173784 Video disc player |
| 12/22/1992 | US5173598 Optical scanning beam position control system which is free of modulation by tracking error |
| 12/22/1992 | US5173391 Optical recording medium |
| 12/22/1992 | US5173381 Using polymers which do not rely on the liquid crystal phenomenon |
| 12/22/1992 | US5173347 Polycarbonate and optical disk therefrom |
| 12/22/1992 | US5173313 Roll-stamper for forming substrate of information-recording medium |
| 12/20/1992 | CA2071474A1 Phthalocyanine compounds and usage thereof |
| 12/19/1992 | CA2070347A1 Sulfonamido or amido substituted phthalocyanines for optical recording |
| 12/16/1992 | EP0518584A2 Optical recording elements |
| 12/16/1992 | EP0518481A1 Disk stabilizing apparatus for optical disk player |
| 12/16/1992 | EP0518213A2 Optical recording medium |
| 12/16/1992 | EP0518109A1 Apparatus for vacuum treatment |
| 12/16/1992 | EP0518042A1 Optical information recording and reproduction apparatus |
| 12/16/1992 | EP0258450B1 Device for detecting focus |
| 12/16/1992 | EP0254748B1 Device for detecting defect of disc-like recording media |
| 12/16/1992 | CN1067131A Devicefor inscribing and /or reading rotating information carrier |
| 12/16/1992 | CN1019529B Optical information recording media and optical recording systems |
| 12/15/1992 | US5172370 Disk reproducing apparatus equipped with a pickup device capable of reading both sides of a disk |
| 12/15/1992 | US5172369 Optical pickup, optical information recording carrier and recording and reproducing apparatus thereof |
| 12/15/1992 | US5172368 Reader for optical recording medium |
| 12/15/1992 | US5172367 Optical pickup guide rail positioning mechanism |
| 12/15/1992 | US5172366 Optical information reproducing apparatus with selective photodetector output |
| 12/15/1992 | US5172365 System for predicting laser end-of life from the power vs. current curve of the diode |
| 12/15/1992 | US5172363 Method and apparatus for automatic recording of marker during information recording |
| 12/15/1992 | US5172361 Disc loading apparatus |
| 12/15/1992 | US5172359 System for recording digital data |
| 12/15/1992 | US5172357 Phase-synchronous controller for production of reference clock signal in optical disk drive system |
| 12/15/1992 | US5172356 Separation type optical pickup device |
| 12/15/1992 | US5172355 Photo-detecting device including offset correction |
| 12/15/1992 | US5172354 Compatible disk player for playing multi-size disks and having a mode for selecting one disk type |
| 12/15/1992 | US5172353 Track seeking control apparatus for use in data recording/reproduction systems having data tracks thereon |
| 12/15/1992 | US5172352 Laser recording/reproducing apparatus for an optical disk having a driving circuit for maintaining a servo signal at a predetermined level |
| 12/15/1992 | US5172242 Visual presentation system employing two or more video disk players for providing as many correlated images |
| 12/15/1992 | US5171984 Scanning device comprising a rotatable mirror, drive unit for use in the scanning device, using permanent magnetic rotor body and stationary stator section |
| 12/15/1992 | US5171731 Information recording medium |
| 12/15/1992 | US5171636 Photochromatic and thermochromatic spiro-oxazepin-oxazine compounds and the process for their preparation |
| 12/15/1992 | US5171618 Recording medium for information |
| 12/15/1992 | US5171606 Method of coating an optical media |
| 12/15/1992 | US5171392 Method of producing an optical information record carrier |
| 12/15/1992 | CA2070221A1 Optical recording medium |
| 12/15/1992 | CA1311558C Information recording-reproducing method and apparatus |
| 12/15/1992 | CA1311557C Information recording and/or reproducing apparatus provided with meansfor detecting any abnormality of tracking servo |
| 12/10/1992 | WO1992022064A1 Signalization of types of defects of an optical information carrier |
| 12/10/1992 | WO1992022039A1 Optical memories incorporating diffraction gratings |
| 12/10/1992 | WO1992021224A2 Optical disk drive assembly having selectable compression and emulation |
| 12/10/1992 | CA2110681A1 Optical memories incorporating diffraction gratings |
| 12/09/1992 | EP0517491A2 Multiple data surface optical data storage system and method |