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)
01/1998
01/13/1998US5708641 Multiple focus optical pickup system
01/13/1998US5708640 Information reproducing method and apparatus
01/13/1998US5708638 Device for optically scanning a recording medium by focusing the best focus or the paraxial focus to the information layer
01/13/1998US5708637 Method and apparatus for enhanced writing and reading data
01/13/1998US5708636 Tracking error signal generation device
01/13/1998US5708635 Ultra-resolving optical pickup device having an optical detector receiving an unfiltered reflected beam
01/13/1998US5708634 Focussing system and methods for multi-track optical disk apparatus
01/13/1998US5708633 Method and apparatus for manufacturing information storage devices
01/13/1998US5708631 System for fast reproducing of information recorded on an optical disc
01/13/1998US5708541 Termination pad manipulator for a laminated suspension in a data storage system
01/13/1998US5707728 Magneto-optical recording medium
01/12/1998CA2210634A1 High-capacity recording media
01/08/1998WO1998000843A1 Information storage media and method
01/08/1998WO1998000842A1 Optical disk compatible with two different reading systems
01/08/1998WO1998000762A1 Optical coatings containing a binder and one or more of polyhydroxyflavones, hydroxylated benzoic acid derivatives and hydroxylated naphthoic acid derivatives
01/08/1998DE19728481A1 Optical disk substrate
01/08/1998DE19627383A1 Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger Device for reading from or writing to optical recording media
01/07/1998EP0817201A2 Method, apparatus and medium for holographic data storage system
01/07/1998EP0817195A2 Recording medium and reproducing apparatus
01/07/1998EP0817193A2 Calibration apparatus for information storage system
01/07/1998EP0817191A2 Information recording apparatus, information recording medium and information reproducing apparatus
01/07/1998EP0817190A2 Method and apparatus for retrieving data from a storage medium
01/07/1998EP0817189A2 Method for retrieving data from a storage device
01/07/1998EP0817188A2 Apparatus for retrieving data from a storage device
01/07/1998EP0817187A2 Apparatus and method for retrieving stored data
01/07/1998EP0817186A2 Method for retrieving data from a storage device
01/07/1998EP0817181A2 Hybrid optical disk recording medium, disk drive device, information processing system and method of processing information
01/07/1998EP0817180A2 Optical data storage and retrieval system and method
01/07/1998EP0817179A2 Optical data storage and retrieval system and method
01/07/1998EP0816833A2 An illumination unit and illumination method
01/07/1998EP0816465A2 Silicone bonding agent for optical memory element, optical memory element, and method for manufacturing optical memory element
01/07/1998EP0816039A1 Method for producing a pressing die, in particular for optical discs, and die made by this process
01/07/1998CN1169789A Semi-permanent enclosure for optical dafa storage device
01/07/1998CN1169608A Semiconductor laser, optical pickup device, and optical record and/or reproducing apparatus
01/07/1998CN1169576A Optical pickup device
01/07/1998CN1169575A Pickup assembly for optical disk player
01/07/1998CN1169573A Method for reading and storing optical disks of different thickness by one optical head and apparatus thereof
01/07/1998CN1036952C Record replaying apparatus
01/06/1998US5706272 Optical system driving mechanism for an optical system driving apparatus and a sliding movement stabilizing mechanism thereof
01/06/1998US5706271 Method for recording information on an erasable optical recording medium
01/06/1998US5706270 Compact optical pick-up lead with a vertically inclined substrate integrated with laser source and light detector
01/06/1998US5706269 Recording medium and recording/reproduction apparatus therefor
01/06/1998US5706268 Apparatus for reproducing an optical recording medium having first and second pit strings on opposite sides of each track
01/06/1998US5706267 Method and apparatus for retrieving data from a storage device
01/06/1998US5706266 Apparatus and method for data security in an optical disk storage system
01/06/1998US5706264 Disc apparatus having servo circuits which compensate for fluctuations in power supply
01/06/1998US5706263 Method and apparatus for high-density reproduction
01/06/1998US5706261 Optical disc device capable of quick search for a boundary between recorded and unrecorded areas
01/06/1998US5706260 Apparatus for recording and reproducing signals in data blocks
01/06/1998US5706047 Storage media for an optical information system having an identification code embedded therein
01/06/1998US5705572 Continuous process for making melt-processable optical grade ring-opened polycyclic olefin (co)polymers in a single-stage multi-zoned reactor
01/06/1998US5705248 Spin-transition compounds and their use for storing, processing and/or displaying information
01/06/1998US5705247 Optical information medium and method for fabricating the same
01/06/1998US5705246 Stamping optical disks, photoresists laminates, pits, photosensitive layers and scanning light
01/02/1998DE19726306A1 Reproduction of multiple camera angle digital data from video disc
01/02/1998DE19625717A1 Verfahren zum Abtrennen des Angusses von einem Spritzgießteil A method for removing the sprue of an injection-molded part
01/01/1998CA2209209A1 Method of manufacturing a pressing die, in particular for optical discs and die thus obtained
12/1997
12/31/1997WO1997050255A1 Optical disc
12/31/1997WO1997050158A1 Semiconductor laser
12/31/1997WO1997050086A1 Disc driver
12/31/1997WO1997050084A1 Reversible optical information medium
12/31/1997WO1997050083A1 Optical disc and optical disc driving apparatus
12/31/1997WO1997050082A1 Optical disc with a rewritable area and a read-only area
12/31/1997WO1997050081A1 Information carrier containing auxiliary information, reading device and method of manufacturing such an information carrier
12/31/1997WO1997050018A1 Device for playing a movie film
12/31/1997WO1997049537A1 Method of removing the sprue from an injection moulding
12/31/1997CN1169128A 光记录材料和光记录介质 The optical recording material and optical recording medium
12/31/1997CN1169012A Method of driving CD-ROM drive
12/31/1997CN1169009A Laser diode elements with light yield mornitoring function
12/31/1997CN1169007A Automatic disk discriminating method and apparatus in optical disk system
12/31/1997CN1036879C Process for shortening of access time
12/31/1997CA2256741A1 Method of removing the sprue from an injection moulding
12/30/1997US5703868 Optical information recording medium having discernible obverse and reverse sides
12/30/1997US5703867 Information recording medium
12/30/1997US5703865 Method and apparatus for magneto-optical recording and reading using optimized laser powers
12/30/1997US5703864 Pickup device for otpical disk
12/30/1997US5703863 Optical device which detects reflected light with a push-pull method without dividing the reflected light
12/30/1997US5703862 Dual focus objective lens with two curvatures for focussing light on two different kinds of disks with different thicknesses
12/30/1997US5703861 Integrated confocal optical pick-up head with a hologram and a polarizer mounted on each side of a transparent heat sink
12/30/1997US5703858 System for encoding a glass master to enable detection of a counterfeit optical CD-ROM
12/30/1997US5703857 For use with a disk drive
12/30/1997US5703856 Optical head and optical data recording and reproducing apparatus having the same
12/30/1997US5703855 Optical disk apparatus and recording and reading method for an optical disk using the same
12/30/1997US5703854 Disc recording/reproduction apparatus and method for resetting an address control circuit to maximize an address margin of the memory
12/30/1997US5703853 Recording medium as well as recording apparatus and reproduction apparatus for the same
12/30/1997US5703852 Optical disk reproducing apparatus having a cosine equalizer with boosted frequency characteristics
12/30/1997US5703851 Clock reproducing device utilizing a frequency of wobble groove information
12/30/1997US5703849 Tracking servo correction control circuit
12/30/1997US5703848 Off track detection system for ruggedized optical disk drive
12/30/1997US5703846 Optical disk tracking control method, optical disk device, and optical disk with increased recording density
12/30/1997US5703842 Information recording/reproducing apparatus for executing system control and servo control by single CPU
12/30/1997US5703793 Video decompression
12/30/1997US5703730 Lens drive apparatus
12/30/1997US5703705 Tilt multiplex holography
12/30/1997US5702830 Magneto-optical recording materials system
12/30/1997US5702792 Read only memory compact disk comprising multilayer of spacer layer and reflective layer coupling with a silane compound
12/30/1997CA2047208C Erasable optical wallet-size data card
12/29/1997EP0814471A2 Optical data storage and retrieval system and method
12/29/1997EP0814470A2 Optical disk and process for producing the same
12/29/1997EP0814469A1 Optical recording medium for checking compatibility of an optical pickup device and method of checking an optical pickup device using the same