| 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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| 04/22/1997 | US5623138 Method and apparatus for focusing control of an object lens for focusing light on an optical disk |
| 04/22/1997 | US5622816 Direct to stamper/mother optical disk mastering |
| 04/22/1997 | US5622815 Process of manufacture of a master disk and/or of an optical disk |
| 04/22/1997 | US5622812 Photochromic (5-phenyl)thienyl aryl maleic anhydride or imide derivatives; oxidation resistance, durability; optical recording media, optical masks |
| 04/18/1997 | CA2188006A1 Light emitter-receiver device and optical reading system |
| 04/17/1997 | WO1997014151A1 Multimedia optical disc corresponding to different rating systems of different countries, and method and apparatus for reproduction |
| 04/17/1997 | WO1997014146A1 Optical disk, bar code formation method for optical disk, optical disk reproduction apparatus, and marking method, laser marking method for optical disk, and method of optical disk production |
| 04/17/1997 | WO1997014145A1 Optical registration medium with dual information layer |
| 04/17/1997 | WO1997014144A1 Optical disk, optical recorder, optical reproducing device, encrypted communication system, and authorizing system for use of program |
| 04/17/1997 | WO1997014143A1 Method and device for recording optical information |
| 04/17/1997 | WO1997014142A1 Optical registration tape |
| 04/17/1997 | WO1997014140A1 Transducer supporting apparatus |
| 04/17/1997 | CA2207087A1 Optical registration tape |
| 04/16/1997 | EP0768703A2 Manufacturing device for exposed and metallised substrates |
| 04/16/1997 | EP0768653A1 Device for exposing a dishshaped substrate |
| 04/16/1997 | EP0768652A2 Single-substrate multi-layer optical disk for read-only storage and phase change rewritable storage |
| 04/16/1997 | EP0768651A1 Optical head for a high density disk |
| 04/16/1997 | EP0768650A2 Laser beam irradiation device for a disk-shaped substrate |
| 04/16/1997 | EP0768649A2 Laser beam irradiation device for a disk-shaped substrate |
| 04/16/1997 | EP0768648A1 Optical information recording medium |
| 04/16/1997 | EP0768647A1 Optical disk and optical disk reproduction apparatus |
| 04/16/1997 | EP0768646A1 Optical recording and playback apparatus and method using single light absorbents |
| 04/16/1997 | EP0768353A1 Ultraviolet-curing adhesive composition |
| 04/16/1997 | EP0767953A2 Optical unit comprising a radiation source, a detector and a grating, and scanning device including the optical unit |
| 04/16/1997 | EP0536406B1 Optical recording medium and its manufacturing |
| 04/16/1997 | EP0512821B1 Disc recording apparatus and disc reproducing apparatus |
| 04/16/1997 | CN1147671A Video disk replaying apparatus |
| 04/16/1997 | CN1147518A Spin-transition parent compounds and devices having means for writing, storing and erasing, which comprise active medium including at least one of said compounds |
| 04/15/1997 | US5621748 Stripe laser diode having an improved efficiency for current confinement |
| 04/15/1997 | US5621746 Semiconductor laser and method of manufacturing same |
| 04/15/1997 | US5621719 Optical disk and apparatus for reproducing the same |
| 04/15/1997 | US5621717 Reading optical disks having substrates with diverse axial thicknesses |
| 04/15/1997 | US5621716 Optical pickup having a transparent lens member with two reflecting surfaces |
| 04/15/1997 | US5621715 Optical integrated circuit |
| 04/15/1997 | US5621714 Optical pick-up apparatus having hologram and beam splitter with birefringent member and polarizing film |
| 04/15/1997 | US5621711 Velocity detection circuit |
| 04/15/1997 | US5621709 Tracking servo apparatus |
| 04/15/1997 | US5621707 Data reproducing method |
| 04/15/1997 | US5621583 Method and device for reading and writing magnetically encoded data on linear tracks |
| 04/15/1997 | US5621582 Disk drive including a baseplate well for the spin motor |
| 04/15/1997 | US5621576 Optical head for optical memory disk recording device with elastic support in a direction parallel to a recording surface |
| 04/15/1997 | US5621549 Method and apparatus for positioning a light beam on a holographic media |
| 04/15/1997 | US5621490 Sound system for compact distribution print |
| 04/15/1997 | US5621489 Medium having photographically recorded digital audio bits |
| 04/15/1997 | US5620792 Magneto-optic recording medium having constant reflectance over a range of wavelengths |
| 04/15/1997 | US5620767 Light reflecting and heat dissipating material and optical information recording medium using the same |
| 04/15/1997 | US5620766 Magneto-optical disk |
| 04/15/1997 | US5620765 Aqueous backing for digital optical media |
| 04/15/1997 | US5619898 Process and device for mechanically removing a layer from the substrate material of a disk-shaped information carrier |
| 04/15/1997 | CA2075518C Optical memory |
| 04/15/1997 | CA2073323C Optical recording medium driving apparatus capable of accurately detecting position of optical head |
| 04/10/1997 | WO1997013366A1 Method and device for multi-angle connecting and encoding bit stream |
| 04/10/1997 | WO1997013364A1 Method and device for seamless-reproducing a bit stream containing noncontinuous system time information |
| 04/10/1997 | WO1997013363A1 Method and device for encoding seamless-connection system of bit stream |
| 04/10/1997 | WO1997013361A1 Encoding method and device for giving searching/reproducing route information to a bit stream |
| 04/10/1997 | WO1997013303A1 Semiconductor laser and optical disk device using the laser |
| 04/10/1997 | WO1997013251A1 Gated recording of holograms using rare-earth doped ferroelectric materials |
| 04/10/1997 | WO1997013247A1 Method and apparatus for storing and retrieving information using optical data storage media |
| 04/10/1997 | WO1997013246A1 Optical information recording medium, method of manufacturing the medium, and target used for manufacturing the medium |
| 04/10/1997 | WO1997013245A1 Optical head device and production method thereof |
| 04/10/1997 | WO1997013244A1 Information carrier and recording device for recording an information carrier |
| 04/10/1997 | WO1997013243A2 Sound system for compact distribution print |
| 04/10/1997 | WO1997009720A3 Method and device for storing and retrieving information |
| 04/10/1997 | DE19640837A1 Optische Aufzeichnungs- und Wiedergabevorrichtung The optical recording and reproducing apparatus |
| 04/10/1997 | DE19537403A1 Laser beam irradiation device for exposing circular disc formed substrate |
| 04/09/1997 | EP0767456A1 Focus servo controlling method and apparatus |
| 04/09/1997 | EP0767455A2 Optical record medium judging method and apparatus and focus servo controlling method and apparatus |
| 04/09/1997 | EP0767454A1 Manually scannable code read apparatus |
| 04/09/1997 | EP0766864A1 Marking of optical disc for customized identification |
| 04/09/1997 | EP0766863A1 Method for reading information |
| 04/09/1997 | EP0766862A1 Optical information carrier |
| 04/09/1997 | CN1147180A Recording and/or reproduction apparatus and method for optical record medium |
| 04/09/1997 | CN1147134A Decoder/encoder, reproducing apparatus equipped with encoder/decoder, recording apparatus equipped with encoder |
| 04/09/1997 | CN1147131A Disc player |
| 04/09/1997 | CN1147128A Digital servo circuit generating mirror detecting signal |
| 04/09/1997 | CN1147127A Tracking servo circuit |
| 04/09/1997 | CN1147126A Optical disk apparatus |
| 04/08/1997 | US5619731 Interactive music CD and data |
| 04/08/1997 | US5619521 Semiconductor laser system |
| 04/08/1997 | US5619488 Information recording device |
| 04/08/1997 | US5619487 Optical data readout with two beams on three tracks |
| 04/08/1997 | US5619484 Pulling-in circuit for PLL circuit, pulling-in method for PLL circuit, PLL circuit device and apparatus for reproducing optical disc |
| 04/08/1997 | US5619483 Method of recording on a recording medium employing an automatic termination of recording by monitoring the signal being recorded |
| 04/08/1997 | US5619482 Optical head unit for an optical disk using a diffraction grating |
| 04/08/1997 | US5619424 Software carrier for storing digital data representative of picture information and including pan scan data |
| 04/08/1997 | US5619387 Disk storage device with spiral data track and incremental error offsets in angularly spaced imbedded concentric servo patterns |
| 04/08/1997 | US5619371 Confocal optical microscopy system for multi-layer data storage and retrieval |
| 04/08/1997 | US5618930 Phthalocyanine compound and method for making, nitro-substituted phthalocyanine compound, amino-substituted phthalocyanine compound, phthalocyanine-containing polymer and method for making, catalyst, and optical recording medium |
| 04/08/1997 | US5618929 Infrared absorbing/visible wavelength transparent; langmuir-blodgett films, liquid crystal displays, optical recording media |
| 04/08/1997 | US5618617 Magneto-optic disk |
| 04/08/1997 | CA2100636C Optical information reproducing device |
| 04/03/1997 | WO1997012279A1 Optical digital media recording and reproduction system |
| 04/03/1997 | WO1997011815A1 Composition and method for refinishing compact disks |
| 04/03/1997 | CA2233448A1 Optical digital media recording and reproduction system |
| 04/03/1997 | CA2232784A1 Composition and method for refinishing compact disks |
| 04/02/1997 | EP0766240A2 Phase change optical disk |
| 04/02/1997 | EP0766239A1 A data storage device |
| 04/02/1997 | EP0766238A1 Optical pickup system capable of reading a multiple number of optical disks |
| 04/02/1997 | EP0766237A1 Optical head device with lens system for increasing beam diameter of light to be incident on objective lens |
| 04/02/1997 | EP0766236A1 Optical head device with optically variable aperture |