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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09/05/1995 | US5448536 Magneto-optical recording device having an optical head capable of generating a circularly polarized light beam |
09/05/1995 | US5448407 Equivalent wollaston prism for an optical pick-up head and an optical pick-up head using of the same |
09/05/1995 | US5448048 Optical card recording/reproducing apparatus with presetting of card sector position data for detecting sector positions |
09/05/1995 | US5447823 Metal chelate compound and optical recording medium using the compound |
09/05/1995 | US5447778 Information recording medium and methods of manufacturing and using the same |
09/05/1995 | US5447768 Optical disk with a bearing ring |
09/05/1995 | US5447767 Optical recording medium, production thereof, substrate for optical recording medium, and production thereof |
09/05/1995 | CA1336922C Recording device and reproducing device |
08/31/1995 | WO1995023487A1 Cellular radiotelephone system with remotely programmed mobile stations |
08/30/1995 | EP0669613A1 Optical pickup system |
08/30/1995 | EP0669612A2 Optical recording apparatus |
08/30/1995 | EP0669611A1 Optical information recording method and recording apparatus |
08/30/1995 | EP0669553A1 Apparatus for reading optical data from a motion picture film and a light source therefor |
08/30/1995 | EP0669548A1 Optical element and process for producing the same |
08/30/1995 | CN1107645A Disklike recording medium, apparatus for recording data on disk, and apparatus for reproducing data from disk |
08/30/1995 | CN1107600A Optical information carrier |
08/29/1995 | US5446724 Information storage medium with first and second recording regions each having a predetermined recording density |
08/29/1995 | US5446723 Multiple data surface optical data storage system |
08/29/1995 | US5446722 Information recording apparatus having magnetic shield means |
08/29/1995 | US5446721 Objective lens drive device with support system |
08/29/1995 | US5446719 Optical information reproducing apparatus |
08/29/1995 | US5446718 Information recording and reproducing method and system for disc-shaped recording mediums |
08/29/1995 | US5446717 Optical disc and recording and reproducing method for an optical disc with a high density |
08/29/1995 | US5446716 Laser power control in an optical recording system to compensate for multiple system degradations |
08/29/1995 | US5446713 Optical pickup drive control apparatus with vibration restraint |
08/29/1995 | US5446712 Optical system having a precision angular displacement mechanism including a flat metal spring |
08/29/1995 | US5446711 Apparatus for recording and/or reproducing information and/or from optical information record disk |
08/29/1995 | US5446710 Focus error detection using an equal path length lateral shearing interferometer |
08/29/1995 | US5446708 Pickup driving system for optical disk apparatus |
08/29/1995 | US5446684 Storage medium, storage method and stored information reading method |
08/29/1995 | US5446573 All-optical regenerator |
08/29/1995 | US5446565 Compound objective lens having two focal points |
08/29/1995 | US5446142 Phthalocyanine and naphthalocyanine light-absorbing compound and optical recording medium containing same |
08/29/1995 | US5446141 Optical recording media, filters, liquid crystals display |
08/29/1995 | US5446095 Compatible polymer blends |
08/29/1995 | US5445855 Composed of an ethylene-cycloolefin copolymer substrate and an adhesive layer |
08/29/1995 | US5445853 Low reflectivity, compactness, lightweight |
08/29/1995 | US5445555 Resin material reclaimed from optical recording disk and method of reclaiming same |
08/29/1995 | US5445172 Wafer holder with flexibly mounted gripping fingers |
08/29/1995 | CA2017501C Recording/reproducing device |
08/24/1995 | WO1995022822A1 Optical scanning device |
08/23/1995 | EP0668588A1 Recorded signal detection apparatus |
08/23/1995 | EP0668584A1 Preformatted substrate, preformatted substrate having information to be duplicated, their methods of manufacture, and method of manufacture of a master disk or optical disk |
08/23/1995 | EP0570415B1 Optical scanning device |
08/23/1995 | EP0504300B1 A tracking system in an optical recording/reproducing device |
08/23/1995 | EP0483387B1 Dye composition and optical recording medium |
08/23/1995 | EP0378222B1 Magnetic recording medium and method of magnetically recording and reading data |
08/22/1995 | US5444726 Semiconductor laser device |
08/22/1995 | US5444690 Leaf spring lock for a carriage in a media player that is actuated by the carriage and position of a cartridge |
08/22/1995 | US5444689 Detection of phase and amplitude modulation information on optical medium with a waveguide |
08/22/1995 | US5444687 Method and device for accessing an optical disc |
08/22/1995 | US5444684 Seek control system of dual processor magneto-optic disk unit |
08/22/1995 | US5444683 Optical reporting reproducing device having fixed and movable optical systems |
08/22/1995 | US5444682 Tracking control apparatus |
08/22/1995 | US5444681 Method and apparatus for recording signals with sub-signals indicative of outline of the signals |
08/22/1995 | US5444680 Digital signal processing apparatus with a read error correction function |
08/22/1995 | US5444679 Optical disk driver for reading data from a disk based on ID information |
08/22/1995 | US5444677 Optical read/write head low angle beamsplitter and coplanar detectors |
08/22/1995 | US5444371 Magnetic disk offset amount measuring apparatus |
08/22/1995 | US5444233 Optical or magnetooptical information recording/reproducing apparatus and a focusing pull-in method for such apparatus generating a light beam for focusing error signal detection |
08/22/1995 | US5444224 Optical information recording/reproducing apparatus |
08/22/1995 | US5443940 Optical recording material and optical recording medium employing the same |
08/22/1995 | CA2033230C Optical head |
08/22/1995 | CA2023869C Optical disk recording/reproducing device |
08/17/1995 | WO1995022142A1 Method and recording device for recording signals on a record carrier |
08/17/1995 | WO1995021890A1 Disc repair system |
08/16/1995 | EP0667661A2 Semiconductor laser and method for manufacturing the same |
08/16/1995 | EP0667608A1 A method of manufacturing a matrix for producing optical disks without the medium of a master |
08/16/1995 | EP0667024A1 Cd mastering process |
08/16/1995 | EP0473677B1 High fidelity film sound reproduction device |
08/16/1995 | CN1106794A Preparation of polymerizable monomer used for transparent resin having high hardness |
08/15/1995 | US5442619 Erasable optical recording medium with a reversible light absorption layer |
08/15/1995 | US5442618 Common mode rejection control in an optical disk drive |
08/15/1995 | US5442617 Digital noise blanking circuit of CD-ROM system |
08/15/1995 | US5442616 Light source unit and method of adjusting for maximizing focus and tracking errors thereby |
08/15/1995 | US5442615 Optical plate for correcting comatic aberration |
08/15/1995 | US5442614 Method of recording data and information regarding defects |
08/15/1995 | US5442613 Optical information recording/reproduction apparatus to stop recording operation upon detecting error in access operation to target track |
08/15/1995 | US5442611 Method of recording information on record medium having data record region and file management information record region |
08/15/1995 | US5442610 Method for processing an anomalous writing in an optical disk apparatus |
08/15/1995 | US5442609 Tracking error signal correcting system which adjusts gain such that rending tracking error signals and recording trucking error signals and recording tracking error signals are equal |
08/15/1995 | US5442608 Disk apparatus having a power consumption reducing mechanism |
08/15/1995 | US5442607 Jump pulse corrector and optical disk unit |
08/15/1995 | US5442606 Electromagnetic lens actuator for optical disk drive |
08/15/1995 | US5442605 Head driving device with carriage assembly centroid position set where servo frequency is not delayed |
08/15/1995 | US5442604 Access control device |
08/15/1995 | US5442490 Objective lens driving apparatus |
08/15/1995 | US5442455 Two-sided video disc having high definition television video signals recorded thereon and a method of manufacturing the same |
08/15/1995 | US5442433 Identification system for an article having individually attached patches |
08/15/1995 | US5441848 Organic dye base recording layer and reflective layer on grooved resin substrate; signals are written using light source in groove |
08/15/1995 | US5441844 Optical information recording medium using bisazo or trisazo compounds |
08/15/1995 | CA2029719C Optical disc reproducing apparatus |
08/10/1995 | WO1995021444A1 Process for cutting central holes in cd's |
08/10/1995 | WO1995021045A1 Process for removing the coating of metallised disk-shaped information carriers |
08/10/1995 | DE4403169A1 Verfahren zum Einbringen von Mittellöchern in CD's Method for introducing center holes in CD's |
08/10/1995 | DE19503165A1 Optical record-playback system with scanning read-write heads |
08/09/1995 | EP0666565A2 Card drive apparatus and card |
08/09/1995 | EP0666561A1 Spin-transition chemical compounds, and devices comprising read-, memory-, and erase-units, active medium which contains at least one of those compounds |
08/09/1995 | EP0666495A1 Motion picture digital sound system and method |
08/09/1995 | EP0483382B1 Metal chelate compound and optical recording medium prepared therefrom |