Patents
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)
04/1995
04/19/1995EP0649133A1 Metallized azo dianion with two cationic dye counter ions for optical information recording medium
04/19/1995EP0649132A1 Disc eccentricity measuring apparatus and method thereof and apparatus for recording and/or reproducing disc-shaped recording medium
04/19/1995EP0649131A2 Servo control system for disk player
04/19/1995EP0649130A1 Objective lens posture adjusting mechanism for optical pickup
04/19/1995EP0638196A4 Improved optical disk structures for electron trapping optical memory media.
04/19/1995CN1028239C Active energy ray-curable composition and optical recording emdium having cured of composition
04/18/1995US5408531 Information recording/reproducing apparatus for converting and processing data exceeding error correction ability at recording
04/18/1995US5408456 Data reproducing method and apparatus for determining the interval between pits on a recording medium from a modulated read-out signal
04/18/1995US5408454 Track jump controlling apparatus
04/18/1995US5408453 Method of and apparatus for optically writing, reading and erasing a multi-plane record carrier, and record carrier suitable for said method and apparatus
04/18/1995US5408452 Optical information recording/reproducing system including novel tracking system
04/18/1995US5408451 Driving device for objective lens
04/18/1995US5408450 Optical pickup apparatus
04/18/1995US5408448 Device and method for CD shuffle play
04/18/1995US5408331 Optical disk reproducing apparatus having selectable processing speeds
04/18/1995US5407720 Optical recording medium and process for producing the same
04/18/1995US5407719 Writable recording medium; high reflectance
04/18/1995US5407314 Apparatus for synchronizing loading and unloading of substrates with turntable movement in a coating chamber
04/13/1995WO1995010111A1 Optical disk recording device
04/12/1995EP0648049A1 Information recording and reproducing method and apparatus
04/12/1995EP0647938A2 Track access control system in rotating disc devices with eccentricity correction
04/12/1995EP0647345A1 High data rate optical tape recorder
04/12/1995EP0530230B1 Single wafer processor apparatus
04/12/1995CN1101448A Optical head device and optical information apparatus
04/12/1995CN1028189C Apparatus for optically scanning an information plane
04/11/1995US5406546 Magneto-optical disk
04/11/1995US5406545 Servo pattern in an optical data storage medium for obtaining a tracking error signal
04/11/1995US5406544 Low cost substrate for bump-forming recording media
04/11/1995US5406543 Optical head with semiconductor laser
04/11/1995US5406542 System for reducing crosstalk in an optical scanning device
04/11/1995US5406541 Apparatus and method for a dual half-aperture focus sensor system
04/11/1995US5406540 Optical disk recording performance
04/11/1995US5406538 Optical disk system with table of contents
04/11/1995US5406537 System for reproducing an optical disc
04/11/1995US5406536 Optical disc apparatus having improved read accuracy with non-linear servo signal gain during track access and focus initialization
04/11/1995US5406535 Head seeking control apparatus with changeable speed references
04/11/1995US5406534 Double-sided recordable optical disk suitable for a substituting process and a method for performing defect management
04/11/1995US5406533 Information signal recording apparatus
04/11/1995US5406532 Signal detecting optical system
04/11/1995US5405976 Benzpyrylium squarylium and croconylium dyes, and processes for their preparation and use
04/11/1995US5405968 Useful as drugs, for producing singlet oxygen, sensitizers in electrophotographic layers and for photopolymerizations and as laser light sensitive dyes in optical recording media
04/11/1995CA2001038C Wedge prism assembly for optical information storage
04/06/1995WO1995009422A1 Data carrier
04/06/1995WO1995009418A1 Optical head
04/06/1995WO1995009379A1 Retardation layer having a dispersion adapted to the active liquid-crystalline cell
04/06/1995DE4431966A1 Atomisation target electrode
04/06/1995DE4409284C1 Sound-scanning device
04/06/1995CA2172973A1 Retardation layer having a dispersion adapted to the active liquid-crystalline cell
04/05/1995EP0646911A2 Optical head apparatus
04/05/1995EP0646910A1 Optical storage device
04/05/1995EP0646909A1 Optical information recording/reproduction method and apparatus
04/05/1995EP0646908A1 Optical disk reader
04/05/1995EP0646769A1 Displacement measurement apparatus
04/05/1995EP0606389B1 Optical head for magneto-optical system
04/05/1995CN1101157A Laser head for detecting focus erro and tracking error using hologram
04/05/1995CN1101156A Multiple data surface optical medium and storage system with fixed aberration correction
04/05/1995CN1101155A Optical disc system
04/04/1995US5404348 Method for recording and reproducing information using at least two energy beams
04/04/1995US5404346 Optical information processing apparatus including a correction circuit for correcting non-linearity of an output of a position detection circuit
04/04/1995US5404345 Optical recording medium and tracking servo circuit adapted therefor using wobbled pits
04/04/1995US5404344 Recording/reproducing optical head producing focusing error signal from zero-th order diffracted light and tracking error signal from first order diffracted light
04/04/1995US5404009 Integrated optical information detector for an optical information processing apparatus with a plurality of photo detecting strips and a common bonding pad
04/04/1995US5403878 With alpha olefin oligomer and acidic sulfur compound; mold releasing, thermostability
04/04/1995US5403683 Photo-mask
04/04/1995US5403619 Reaction and polishing takes place at the interface between oxygene superionic conductor and dimond or carbonitride film to form volatile carbon mono or dioxide, resulting in their removal
04/04/1995US5403397 Device for manufacturing a mold for a disc-shaped registration carrier
04/04/1995US5402599 Floral container having a water-impermeable external layer
04/04/1995CA2007619C Optical pickup apparatus utilizing a diffraction device
03/1995
03/30/1995DE4332795A1 Aufzeichnungsmaterial für Bilder oder Daten Recording material for images or data
03/30/1995DE4332498A1 Method and apparatus for printing individual flat objects
03/29/1995EP0645766A1 Recording and/or reproducing apparatus for magneto-optical recording medium
03/29/1995EP0645765A1 Disklike recording medium, apparatus for recording data on disk, and apparatus for reproducing data from disk
03/29/1995EP0645042A1 Disk-shaped optical storage medium and process for producing the same
03/29/1995CN2193582Y Tracker of optical disc driver
03/28/1995US5402435 Optical device
03/28/1995US5402411 Constant amplitude of tracking error signals generated from a head guide track and a performed track
03/28/1995US5402407 Optical pickup apparatus and method for adjusting optical axis thereof
03/28/1995US5402404 Optical disc apparatus having automatic gain control circuit of open loop type
03/28/1995US5402403 Device for detecting cross talk level of optically read signal
03/28/1995US5402402 Apparatus for controlling a optical disk drive
03/28/1995US5402401 Scanning device with two-stage controller for positioning a scanning point
03/28/1995US5402399 Apparatus and method for reproducing information data from optical cards
03/28/1995US5402274 Data separator and signal processing circuit with an adjustable window
03/28/1995US5402269 Compound prism
03/28/1995US5401610 Optical disc
03/28/1995US5401609 Optical recording medium and its production
03/28/1995US5401549 Optical information recording medium
03/28/1995US5401158 Apparatus for automatically exchanging a stamper unit with another one
03/28/1995CA2021155C Optical disk recording and reproducing apparatus
03/23/1995WO1995008172A1 Method of assembling disk unit and head carriage driving transmission gear
03/23/1995WO1995008171A1 Analog-digitizer sound system for motion pictures
03/23/1995DE4416325A1 Use of specific polycarbonates for the production of optical articles
03/22/1995EP0644659A2 Information recording/reproducing apparatus for recording or reproducing data, and clock generating circuit incorporated therein
03/22/1995EP0644580A2 A wafer processor
03/22/1995EP0644537A2 Information recording medium
03/22/1995EP0644536A1 Automatic attitude correcting system for optical disc device
03/22/1995CN1100550A Laser output control device for an optical information recording and reproducing apparatus
03/22/1995CN1100549A Optical disc, device for checking optical disc and device for recording information on optical disc
03/21/1995US5400319 CD-ROM with machine-readable I.D. code
03/21/1995US5400318 Edge detection of information pit pattern by establishing threshold voltage from a closely spaced pit pattern