| 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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| 05/19/1998 | US5753275 Cavity plates aligning and guiding apparatus in disk injection molding dies |
| 05/19/1998 | US5753091 Carrier palette for substrates of optical storage media |
| 05/14/1998 | WO1998020492A1 Method and arrangement for preventing unauthorized duplication of optical discs using barriers |
| 05/14/1998 | WO1998019856A1 Multi-component dye compositions for optical recording media |
| 05/13/1998 | EP0841658A2 Optical disc, optical disc recording reproducing apparatus and production method of the optical disc |
| 05/13/1998 | EP0841657A1 Focused spot position-discriminating system and optical disk with guiding groove suited therefor |
| 05/13/1998 | EP0840926A1 Method and apparatus for making an optical information record |
| 05/13/1998 | CN1181834A Device for optically scanning a rocord carrier |
| 05/13/1998 | CN1181833A Objective lens and scanning device using such an objective lens |
| 05/13/1998 | CN1181766A Epoxy resin compsn. and optical information recording medium made by using the same |
| 05/13/1998 | CN1181585A Optical pickup system |
| 05/13/1998 | CN1181584A Reproduction apparatus and method |
| 05/13/1998 | CN1181583A Recording or replay device and method for recognition of focussing ststus |
| 05/13/1998 | CN1181582A Knife edge method for use in optical pickup system |
| 05/13/1998 | CN1181581A Optical disc apparatus accessing method and system therefor |
| 05/13/1998 | CN1181580A Objective lens driving device and optical disc apparatus using the same |
| 05/13/1998 | CN1181579A Information recording method and its device |
| 05/13/1998 | CN1181578A Multiple track scanning methd for optical pickup |
| 05/13/1998 | CN1181577A Information recording method and apparatus |
| 05/13/1998 | CN1181576A Optical pickup device with plurality of laser couplers |
| 05/13/1998 | CN1181537A Compact sized optical pickup system |
| 05/13/1998 | CN1181359A Crystallized glass for substrate of information-recording disk |
| 05/13/1998 | CN1038369C Optical disc and information treatment appts. using same |
| 05/12/1998 | US5752009 Recording medium for electronic publications including multiple format emulation |
| 05/12/1998 | US5751892 Multi-scene recording medium and apparatus for reproducing data therefrom |
| 05/12/1998 | US5751690 Optical disk having pattern displayed thereon and apparatus for manufacturing same |
| 05/12/1998 | US5751689 Information recording medium |
| 05/12/1998 | US5751683 Nanometer scale data storage device and associated positioning system |
| 05/12/1998 | US5751682 Compact size magneto-optical head with a hologram and a beam splitting means |
| 05/12/1998 | US5751681 Tracking signal detection with a photodetector receiving one of a ∓1st-order polarized light |
| 05/12/1998 | US5751680 Optical disk drive |
| 05/12/1998 | US5751679 Hologram formed on an objective lens for one defracting light beams which are separated by more than one track width |
| 05/12/1998 | US5751678 Dubbing system |
| 05/12/1998 | US5751676 Optical disk recording and reproducing method and apparatus therefor |
| 05/12/1998 | US5751675 Recording and/or reproduction apparatus and method for optical record medium |
| 05/12/1998 | US5751674 Apparatus for controlling bias amount of focus error signal |
| 05/12/1998 | US5751673 Quick response optical disk system providing accurate displacement of a pick-up and method therefor |
| 05/12/1998 | US5751671 Information recording media and optical disk, disk having specific data so that a visible pattern of characters or graphics appear on a copy disk |
| 05/12/1998 | US5751669 Overwritable magnetooptical recording method in which the recording medium is cooled after irradiation |
| 05/12/1998 | US5751491 Method of adjusting beam axis of optical pick-up |
| 05/12/1998 | US5751398 Motion picture digital sound system and method |
| 05/12/1998 | US5750293 Method of recording and reproducing information |
| 05/12/1998 | US5750229 Phthalocyanine compound and optical recording medium containing it |
| 05/12/1998 | US5750228 Optical information storage medium |
| 05/12/1998 | US5750049 Chiral optical polymer based information storage material |
| 05/07/1998 | WO1998019304A1 Recording/reproducing head, recording/reproducing head positioning mechanism and recorder/reproducer |
| 05/07/1998 | WO1998019303A1 Optical pickup device |
| 05/07/1998 | WO1998019302A1 Optical disc having oscillating lands and grooves |
| 05/07/1998 | WO1998018836A1 Lowly birefringent polymer, process for the production thereof, and optical pickup lens |
| 05/07/1998 | DE19645357A1 Optical storage unit for electronic data |
| 05/06/1998 | EP0840309A2 Optical disc system having current monitoring circuit with controller for laser driver and method for operating same |
| 05/06/1998 | EP0840307A2 Optical information recording medium |
| 05/06/1998 | EP0840306A2 Compatible optical pickup capable of scanning multiple tracks |
| 05/06/1998 | EP0840305A2 Optical apparatus |
| 05/06/1998 | EP0840304A1 Focusing servo system and focus servo acquisition enable method |
| 05/06/1998 | EP0840303A2 Disk discrimination method and device |
| 05/06/1998 | EP0840302A2 Recording or replay device and method for recognition of a focussing status |
| 05/06/1998 | EP0840301A2 Isolation apparatus for use in disc drive system to mitigate effects of undesired mechanical forces and disc drive system including same |
| 05/06/1998 | EP0840300A2 Optical disc system having improved circuitry for performing blank sector check on readable disc and method for operating same |
| 05/06/1998 | EP0840299A1 Input signal amplifier |
| 05/06/1998 | EP0840298A2 Reproduction apparatus and methods for recording media |
| 05/06/1998 | EP0840297A2 Track detection circuit for optical disc playback apparatus |
| 05/06/1998 | EP0840296A2 Recording medium |
| 05/06/1998 | EP0840295A2 Initializing optical disc systems |
| 05/06/1998 | EP0840294A2 Multiple track scanning method for optical pickup |
| 05/06/1998 | EP0840291A2 Rotating disk type information storage apparatus |
| 05/06/1998 | EP0840156A2 Objective lens and optical pickup apparatus |
| 05/06/1998 | EP0840144A1 Lens system having diffracting surface and refracting surface and optical apparatus using the lens system |
| 05/06/1998 | EP0674722B1 Protective film for articles and method |
| 05/06/1998 | EP0660959A4 Diffraction surface data detector. |
| 05/06/1998 | CN1181154A Method and means for changing pit depth on an optical recordable medium |
| 05/06/1998 | CN1181153A Spare and calibration sector management for optical worm media |
| 05/06/1998 | CN1180891A Hologram optical pick-up using two laser source |
| 05/06/1998 | CN1180890A Device for reading from or writing to optical recording medium |
| 05/06/1998 | CN1180889A Optical heat transfer circuit, optical head and reproducing apparatus introducing the same circuit |
| 05/06/1998 | CN1180888A Data recording apparatus and method and recording medium |
| 05/06/1998 | CN1180887A Method for controlling pick-up upon video-disk search |
| 05/06/1998 | CN1180886A Optical pickup |
| 05/05/1998 | US5748658 Semiconductor laser device and optical pickup head |
| 05/05/1998 | US5748607 Optical disc having large display patterns and its manufacturing apparatus |
| 05/05/1998 | US5748605 Rotary arm-type optical pick-up driving device |
| 05/05/1998 | US5748603 Optical pickup apparatus for different discs |
| 05/05/1998 | US5748602 Single-lens optical pick-up head for accessing a DVD disc and a CD disc by switching between two optical states |
| 05/05/1998 | US5748601 Optical head for use with high density optical disk having multi-valued data recorded in the disk |
| 05/05/1998 | US5748600 Rotational optical head for optical recording medium |
| 05/05/1998 | US5748599 Holographic optical device |
| 05/05/1998 | US5748598 Apparatus and methods for reading multilayer storage media using short coherence length sources |
| 05/05/1998 | US5748597 Multi-layered disk focusing method and apparatus |
| 05/05/1998 | US5748594 Recording medium, recording apparatus and reproducing apparatus |
| 05/05/1998 | US5748592 Disk drive apparatus and disk storage medium for high density recording |
| 05/05/1998 | US5748591 Disk drive |
| 05/05/1998 | US5748590 Apparatus for inspecting disc recording medium |
| 05/05/1998 | US5748589 Diagnosis of an optical disk apparatus using a diagnostic method contained on an optical disk medium |
| 05/05/1998 | US5748587 Spindle servo circuit in high-speed optical disk reproducer |
| 05/05/1998 | US5748586 Data recording method and apparatus for minimizing the influence of inter symbol interface |
| 05/05/1998 | US5748585 Disc apparatus for selectively outputting data from a disc and a memory |
| 05/05/1998 | US5748584 Optical disk device having a focus offset controller |
| 05/05/1998 | US5748583 Information recording/reproducing apparatus with counter means accessible by system and servo processing units |
| 05/05/1998 | US5748582 Information recording medium wherein digital symbols are represented by discrete shift amounts of a pit edge and tracking wobbling pits are shared between adjacent tracks and information recording and reproducing apparatus therefor |
| 05/05/1998 | US5748581 Optical head of an optical disc recording/reproducing apparatus having a polygonal prism |