| 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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| 12/08/1993 | EP0572616A1 Wide beam detector system for optical memories |
| 12/07/1993 | US5268914 Laser beam control apparatus |
| 12/07/1993 | US5268912 Harmonic light source capable of being optically modulated and optical information processing apparatus employing the same |
| 12/07/1993 | US5268894 Apparatus for reproducing information by delaying and attenuating a reproducing signal |
| 12/07/1993 | US5268893 Write power calibration utilizing least squares fit of read-back signals for moving media memory |
| 12/07/1993 | US5268892 Cover member for covering an optical system of an optical head device including a dust filter mounted in an off set air flow opening |
| 12/07/1993 | US5268891 Optical recording/reproducing apparatus which reduces seek time by timing initiation of tracking control based upon characteristics of record medium vibrations relative to an optical pick-up head |
| 12/07/1993 | US5268890 Self-cleaning optical disc system |
| 12/07/1993 | US5268888 Focusing servo apparatus for an optical disc |
| 12/07/1993 | US5268887 Optical recording medium having offset-compensating areas |
| 12/07/1993 | US5268886 Method and apparatus for reproducing signals using an optical disk having V-shaped grooves |
| 12/07/1993 | US5268885 Method and means for detecting and stablizing control loop parameters of apparatus for scanning a record carrier |
| 12/07/1993 | US5268883 Track access device and tracking control device |
| 12/07/1993 | US5268862 Three-dimensional optical memory |
| 12/07/1993 | US5268804 Actuator arm controller for a storage device |
| 12/07/1993 | US5268784 Pivotable mirror device for tracking |
| 12/07/1993 | US5268748 Arrangement for measuring the reflection and/or transmission of an object |
| 12/07/1993 | US5268735 Apparatus for observing features and defects of a sample |
| 12/07/1993 | US5268485 Naphthalocyanine derivatives, production thereof and optical recording medium using the same |
| 12/07/1993 | US5268478 Sulfur compound-coordinate bonded organic coloring matter, compositions of same, and photorecording media containing same |
| 12/07/1993 | US5268254 Group 5, group 6 intermetallic |
| 12/07/1993 | US5268211 Multilayer; transparent substrate; inorganic siloxane film |
| 12/04/1993 | CA2096552A1 Tracking-servo-system controller in an optical-disk player |
| 12/02/1993 | CA2070164A1 Optical information recording medium and optical apparatus for reproducing information therefrom |
| 12/01/1993 | EP0572286A1 Mirror movement detecting device |
| 12/01/1993 | EP0572255A2 Device for and method of searching time code recorded on disk |
| 12/01/1993 | EP0572216A2 Method for recording a plurality of kinds of data on recording medium and for reproducing the recorded data |
| 12/01/1993 | EP0572114A1 An apparatus for driving an objective lens |
| 12/01/1993 | EP0572042A2 High-speed search method for use in a disc player system |
| 12/01/1993 | EP0571905A2 Modulating method |
| 12/01/1993 | EP0571564A1 Optical phased arrays |
| 12/01/1993 | CN1078972A Twisted nematic film, a method for the preparation thereof, and a display device comprising said film |
| 11/30/1993 | US5267229 Optical element drive apparatus |
| 11/30/1993 | US5267228 Substrates for optical cards, process for preparing substrates for optical cards, optical cards and apparatus for recording and reproducing information on optical cards |
| 11/30/1993 | US5267226 Optical information recording and reproducing apparatus with switchable spot-functions |
| 11/30/1993 | US5267224 Liquid crystal memory device including an organic ferroelectric layer |
| 11/30/1993 | US5267089 Inclination adjusting device for an objective lens for an optical information recording and reproduction apparatus |
| 11/30/1993 | US5266699 Near infrared radiation absorbers; optical recording media |
| 11/30/1993 | US5266136 Process for producing a roll stamper for molding a substrate sheet for information recording mediums |
| 11/29/1993 | WO1995014993A1 Electronic apparatus using information memory medium |
| 11/26/1993 | CA2096792A1 Modulating method |
| 11/25/1993 | WO1993023849A1 Device for imparting curvature across the width of an optical recording medium |
| 11/25/1993 | WO1993023848A1 Optical disk unit |
| 11/24/1993 | EP0571191A2 Apparatus and method of reproducing and/or recording a recording medium |
| 11/24/1993 | EP0571016A2 Method of and device for recording information on a record carrier having a recording layer which, when heated, undergoes an optically detectable change |
| 11/24/1993 | EP0570922A2 Reproducing apparatus |
| 11/24/1993 | EP0570600A1 Resin material reclaimed from optical recording disk and method of reclaiming same |
| 11/24/1993 | EP0570524A1 Storage medium and apparatus and method for recovering information from such medium by oversampling. |
| 11/24/1993 | EP0570409A1 Method of reading data off a rotating recording medium. |
| 11/24/1993 | EP0323969B1 Dual beam optical data system |
| 11/23/1993 | USRE34455 Large-aperture single lens with aspherical surfaces |
| 11/23/1993 | US5265230 Method and apparatus for determining sector status in a data storage device by writing a status of read-only, writable, or obliterated in an error recovery area of each sector |
| 11/23/1993 | US5265086 Information recording disk |
| 11/23/1993 | US5265085 Simultaneous MO and ROM optical disk signal detection |
| 11/23/1993 | US5265084 Rotary drum assembly with pump-out spiral grooves |
| 11/23/1993 | US5265083 Portable disc player |
| 11/23/1993 | US5265080 Servo phase compensation selection system for an optical disc player |
| 11/23/1993 | US5265079 Seek actuator for optical recording |
| 11/23/1993 | US5265077 Optical disk storage having reduced power consumption during seeking operations |
| 11/23/1993 | US5264968 Lens drive apparatus in optical pickup and method of producing the same |
| 11/23/1993 | US5264692 Circuit arrangement for the operation of a light source for the optical scanning of recording media |
| 11/23/1993 | US5264687 Optical card processing apparatus |
| 11/23/1993 | US5264327 Method for preparing information recording medium |
| 11/23/1993 | US5264266 Information recording medium including an organic polysilane and an oxo metallic phthalocyaning |
| 11/23/1993 | CA1324669C Optical recording card and method of producing the same |
| 11/23/1993 | CA1324668C Self-timing optic lathe |
| 11/23/1993 | CA1324667C Method and apparatus for recording and reproducing information |
| 11/23/1993 | CA1324516C Optical pickup apparatus |
| 11/18/1993 | EP0570292A1 Transition metal complex and their use for optical storage of information |
| 11/18/1993 | EP0570235A2 Optical disk |
| 11/18/1993 | EP0570203A2 Optical disk for use in an optical data recording and/or reproducing apparatus |
| 11/18/1993 | EP0570191A2 Audio reproducing apparatus |
| 11/18/1993 | EP0569718A2 Method and apparatus for reading data |
| 11/18/1993 | EP0569664A1 Optical information recording medium and recording method using said recording medium |
| 11/18/1993 | EP0569597A1 Optical disk |
| 11/18/1993 | EP0569434A1 A method and device for touch-free determination of the translatory or angular position of a body |
| 11/18/1993 | EP0569412A1 Track control circuit |
| 11/16/1993 | US5263039 System for generating shaped optical pulses and measuring optical pulses using spectral beam deflection (SBD) |
| 11/16/1993 | US5263016 Information recording discs |
| 11/16/1993 | US5263014 Optical head |
| 11/16/1993 | US5263013 Apparatus for recording/reproducing of a double-sided optic disk |
| 11/16/1993 | US5263011 Optical recording and reproducing apparatus and recording medium having multilayer recording membranes |
| 11/16/1993 | US5263009 Focus servo circuit for a magneto-optical disk recording and reproducing apparatus |
| 11/16/1993 | US5263008 Magneto-optical disk device having a plurality of independently moving magneto-optical heads in the head window |
| 11/16/1993 | US5262980 Opto-electronic memory system |
| 11/16/1993 | US5262904 Method and apparatus for measuring and compensating nonlinear bitshift |
| 11/16/1993 | US5262667 Semiconductor device for optical pick-up |
| 11/16/1993 | US5262081 Liquid crystalline polyesters for optical data storage |
| 11/16/1993 | CA1324441C Optical disc |
| 11/11/1993 | WO1993022765A1 High data rate optical tape recorder |
| 11/11/1993 | WO1993022764A1 Device for the optical scanning of a recording medium, especially a phosphor storage plate |
| 11/11/1993 | WO1993022710A1 Image and digital and analog sound recording and reproduction on photochemical film |
| 11/11/1993 | WO1993022698A1 Read-write head for an optical tape recorder |
| 11/11/1993 | WO1993022142A1 Stabilizers for cyanine ir dyes |
| 11/11/1993 | DE4215826A1 New selenazolyl and selenophenyl squaric acid dyestuff cpds. - prepd. by reacting N,N-di or N-mono-substd. 2-amino:selenazole(s) with squaric acid or ester(s) in polar solvent |
| 11/10/1993 | EP0569245A2 Method of reading and processing information of recording disc and apparatus for reading and processing the same |
| 11/10/1993 | EP0569082A1 Optical writing and/or reading device |
| 11/10/1993 | EP0569045A1 Information recording medium and recording/reproducing apparatus using the same |
| 11/10/1993 | EP0568830A1 Semiconductor laser device |
| 11/10/1993 | EP0568753A1 High-density optical data storage unit and method for writing and reading information |