| 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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| 04/01/1992 | EP0477372A1 Transfer method |
| 04/01/1992 | EP0164746B1 Optical information recording and reproducing apparatus and optical disc |
| 03/31/1992 | US5101398 Device for magnetically guiding movement of a moving body such as an optical head |
| 03/31/1992 | US5101397 Method for recording signals/reproducing signals on/from film |
| 03/31/1992 | US5101396 Information recording system capable of preventing overwriting |
| 03/31/1992 | US5101393 Optical position error detection using complementary steep angle reflections/transmissions |
| 03/31/1992 | US5101392 Information recording apparatus |
| 03/31/1992 | US5101391 Method for setting the loop gain in a tracking servo loop |
| 03/31/1992 | US5101390 Track-jump device for a disc drive apparatus |
| 03/31/1992 | US5101389 Optical information recording/reproducing apparatus |
| 03/31/1992 | US5101386 Track jumping apparatus for an optical disk pickup |
| 03/31/1992 | US5101385 Magneto-optical information storage system for flexible media having maximum overwrite efficiency |
| 03/31/1992 | US5101096 Optical recording sheet and method and apparatus for reproducing the same |
| 03/31/1992 | US5100766 Optical recording medium |
| 03/31/1992 | US5100711 Heat sensitive, colorless basic dyes, paper substrate, infrared radiation |
| 03/31/1992 | US5100700 Information recording medium |
| 03/31/1992 | US5099618 Method for repairing damaged digital recording disks |
| 03/31/1992 | CA1298405C Optical recording method for data cards |
| 03/31/1992 | CA1298404C Method for recording indicia for indicating presence or absence of errorin medium after error checking and apparatus therefor |
| 03/29/1992 | CA2052100A1 Device for detecting traveling speed of pickup |
| 03/29/1992 | CA2046721A1 Controlling head seeking speed in disk storage units by limiting displacement of head with respect to its supporting headarm |
| 03/29/1992 | CA2046696A1 Anti-skating control of a positioning servo system |
| 03/28/1992 | CA2046697A1 Calibrating optical disk recorders to some parameters during disk spin up while defering calibration of other parameters |
| 03/25/1992 | WO1992005545A1 A method for overwriting information on optical disk medium |
| 03/25/1992 | EP0476894A2 Method of fabricating optical recording drums |
| 03/25/1992 | EP0476889A2 An electromagnetic radiation frequency doubler system |
| 03/25/1992 | EP0476762A2 Erasable optical recording materials and methods based on tellurium alloys |
| 03/25/1992 | EP0476536A2 Information recording apparatus |
| 03/25/1992 | EP0476522A1 Optical head unit |
| 03/25/1992 | EP0476475A1 Cleaning poly(ester)carbonate scrap |
| 03/25/1992 | CA2069088A1 Method for overwriting information on optical disk medium |
| 03/24/1992 | US5099470 Apparatus for reproducing information from opto-magnetic record medium |
| 03/24/1992 | US5099469 Process for manufacturing an optical disc master |
| 03/24/1992 | US5099468 Optical information processing apparatus having offset adjusting circuit which can be exchanged together with optical head |
| 03/24/1992 | US5099467 Disk-shaped recording medium and apparatus for recording and/or reproducing data thereon |
| 03/24/1992 | US5099464 Magneto optical disk recording apparatus including a plurality of connected recording unit buffer memories |
| 03/24/1992 | US5099270 Storage apparatus comprising a plurality of layers |
| 03/24/1992 | US5099126 Photosensitive semiconductor device having radiation sensitive diodes and photocurrent amplification |
| 03/24/1992 | US5099111 Optical card processing apparatus |
| 03/24/1992 | US5098975 Poly(meth)acrylate derivative crosslinked polymer films |
| 03/24/1992 | US5098761 Multilayer, chalcogen compound and fluoride compound, storage stability, erasing |
| 03/19/1992 | WO1992004712A1 Process and device for adjusting radial and tangential angles of light beams |
| 03/18/1992 | EP0475765A1 Optical head for magneto-optical recording/reproducing apparatus |
| 03/18/1992 | EP0475673A1 Information recording reproducing apparatus |
| 03/18/1992 | EP0475595A2 Recording and/or reproducing apparatus for optical discs |
| 03/18/1992 | EP0475558A2 Calibration of system for recording and readback of optically detectable data |
| 03/18/1992 | EP0475529A1 Optical recording element |
| 03/18/1992 | EP0475523A1 Device for optically scanning an information plane |
| 03/18/1992 | EP0475452A2 Use of a quasi-amorphous or amorphous zirconia dielectric layer for optical or magneto-optic data storage media |
| 03/18/1992 | EP0475336A2 Information recording medium and information recording method |
| 03/18/1992 | EP0475197A2 Information recording medium |
| 03/18/1992 | EP0474987A2 Disk reproducing apparatus equipped with a pickup device capable of reading both sides of a disk |
| 03/18/1992 | CA2049762A1 Erasable optical recording materials and methods based on tellurium alloys |
| 03/17/1992 | US5097473 Stabilized-feedback control device for semiconductor lasers |
| 03/17/1992 | US5097465 Double-side playing optical disk player |
| 03/17/1992 | US5097464 Optical recording medium and optical recording/reproducing apparatus |
| 03/17/1992 | US5097463 Laser-optical writing and reading process using a thermally alterable reading layer containing liquid-crystalline compound |
| 03/17/1992 | US5097462 Integrated optical pick-up device |
| 03/17/1992 | US5097458 Servo control system for optical disk device |
| 03/17/1992 | US5097457 Optical recording system having a rotating optical element provided therein |
| 03/17/1992 | US5097456 Optical head |
| 03/17/1992 | US5097455 Enhanced focus sending in optical information storage systems |
| 03/17/1992 | US5097443 Storage medium, storage method and stored information reading method |
| 03/17/1992 | US5097361 Controlling position of a rotatable transducer in devices employing such transducers |
| 03/17/1992 | US5097307 Radiation sensitive semiconductor device for optical reading or writing unit |
| 03/17/1992 | US5096742 To extend useful life |
| 03/17/1992 | US5096627 Method of molding optical recording drums |
| 03/17/1992 | US5096563 Method of manufacturing optical disk |
| 03/17/1992 | US5096401 Apparatus for producing a substrate sheet for optical recording media |
| 03/17/1992 | CA1297581C High contrast optical memory tape |
| 03/12/1992 | DE4028703A1 Verfahren zum messen oder regeln des radial- und tangentialwinkels eines lichtstrahls For measuring procedures or rules of the radial and tangential angle of a light beam |
| 03/11/1992 | EP0474473A2 Optical storage devices |
| 03/11/1992 | EP0474428A1 Optical disk data storage system with error correction |
| 03/11/1992 | EP0474377A1 Optical disc recording apparatus |
| 03/11/1992 | EP0474311A1 Optical data recording medium, method for writing and reading data and apparatus for recording data |
| 03/11/1992 | EP0474214A1 Apparatus for reproducing address data on a disk |
| 03/11/1992 | EP0474052A1 Zone access method in an optical disk drive apparatus |
| 03/11/1992 | EP0474051A2 Semiconductor device for optical pick-up and a method of manufacturing the same |
| 03/11/1992 | EP0474036A2 Optical material |
| 03/11/1992 | EP0474021A2 Light spot position detector and optical head |
| 03/11/1992 | EP0473785A1 Optical disc system and optical disc |
| 03/11/1992 | EP0473709A1 Interactive optical disk, and systems and methods for using |
| 03/11/1992 | EP0473695A1 Recording media |
| 03/11/1992 | EP0473677A1 High fidelity film sound reproduction device. |
| 03/11/1992 | EP0473672A1 Interactive optical disk, method of fabrication and apparatus for recording thereon |
| 03/11/1992 | EP0188549B1 Optical storage structure |
| 03/11/1992 | CN1015842B Apparatus for optically scanning information plane |
| 03/10/1992 | US5095491 Laser system and method |
| 03/10/1992 | US5095479 Optical information recording medium |
| 03/10/1992 | US5095478 Optical data storage medium having interference and flattening layers each having specific thickness for improved information reading and tracking reliability |
| 03/10/1992 | US5095477 Focusing control system |
| 03/10/1992 | US5095476 Scanning apparatus with integrated beam separating and beam-splitting element for scanning a magneto-optical record carrier |
| 03/10/1992 | US5095474 Accessing apparatus for optical information recording and reproducing apparatus |
| 03/10/1992 | US5095473 Split type optical pick-up device |
| 03/10/1992 | US5095472 Focusing error detecting system for optical head |
| 03/10/1992 | US5095389 Beam shaping optical system |
| 03/10/1992 | US5095120 Process for the preparation of photochromic spiropyran compounds |
| 03/10/1992 | CA1297189C Optical data recording/reproducing apparatus |
| 03/05/1992 | WO1992003821A1 Optical scanning device |
| 03/04/1992 | EP0473425A2 Optical disc apparatus for optically processing information |