| 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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| 02/03/1998 | US5715219 Displacement detecting device for optical head |
| 02/03/1998 | US5715218 Pickup control method and apparatus, and disk unit with gain control during power save mode |
| 02/03/1998 | US5715217 Method and apparatus for tracking correction and optical disk for use therein |
| 02/03/1998 | US5715109 Optical disk replay device which varies a delay and frequency of a reproduced signal based on a position of an optical head |
| 02/03/1998 | US5715106 Disk system with headerless track format, embedded servo fields and constant density recording |
| 02/03/1998 | US5715102 Beam shaper device for optical read/write heads |
| 02/03/1998 | US5714833 Ceramic motor |
| 02/03/1998 | US5714251 High density recording, oxidation resistance, stabilization of coercive force |
| 02/03/1998 | US5714222 Spin coating the protective layer covering the recording layer, photocuring the photocurable resin |
| 02/03/1998 | CA2003784C Dithering optical data logger |
| 01/29/1998 | WO1998003975A2 Method and apparatus for reading data from a disc carrier |
| 01/29/1998 | WO1998003973A2 Improvements in and relating to optically readable discs and disc recording apparatus |
| 01/29/1998 | WO1997041556A3 Optical flying head with solid immersion lens having raised central surface facing media |
| 01/28/1998 | EP0821353A2 Disk substrate having a small thickness region |
| 01/28/1998 | EP0821352A1 Pickup device for a disk drive device |
| 01/28/1998 | EP0821351A1 Optical seeking method and apparatus with track count using tracking error signal having constant amplitude during data segments |
| 01/28/1998 | EP0821350A2 Information recording medium and method and apparatus for recording and reproducing information using the same |
| 01/28/1998 | EP0821301A2 Computer system equipped with a write-only optical disc drive |
| 01/28/1998 | EP0820629A1 Optical record carrier and method for recording and reproducing signals therefrom |
| 01/28/1998 | EP0736074B1 Radiation-curable protective lacquer, especially for metallised surfaces |
| 01/28/1998 | EP0508762B1 Optical disk ROM |
| 01/28/1998 | CN1171691A Apparatus and method for reproducing multiple camera-angle signals from disc |
| 01/28/1998 | CN1171594A High density compact disc |
| 01/27/1998 | US5713022 Image data supply system for selectively supplying a number of image data |
| 01/27/1998 | US5712950 System and method for controlling play of multiple dialog audio tracks of a software carrier |
| 01/27/1998 | US5712949 Disc reproduction system with sequential reproduction of audio and image data |
| 01/27/1998 | US5712844 Optical pickup |
| 01/27/1998 | US5712843 Miniature optical access head apparatus |
| 01/27/1998 | US5712842 Optical pick-up device |
| 01/27/1998 | US5712841 Optical unit having a radiation source, a detector and a grating, and scanning device including the optical unit |
| 01/27/1998 | US5712840 Optical information recording/reproduciing apparatus having two-division detectors |
| 01/27/1998 | US5712839 Laser light power control system having reflected light detector |
| 01/27/1998 | US5712837 Method and apparatus for recording data |
| 01/27/1998 | US5712836 Apparatus and method for adjusting a rotational velocity of a disk storage medium with measuring the amount of time to reproduce address data stored thereon |
| 01/27/1998 | US5712835 Track jump device and information recording medium driving apparatus |
| 01/27/1998 | US5712721 Switchable lens |
| 01/27/1998 | US5712560 Drive speed detector for a motor that drives a data reproducing device |
| 01/27/1998 | US5712062 Carbon fluoride particles, preparation process and uses of the same |
| 01/27/1998 | CA2088701C Optical information reproducing apparatus |
| 01/26/1998 | CA2211680A1 Computer system equipped with a write-only optical disc drive |
| 01/22/1998 | WO1998002885A1 Process and arrangement for writing binary data onto glass masters |
| 01/22/1998 | WO1998002877A1 Magneto-optical recording medium, its reproducing method and reproducer |
| 01/22/1998 | WO1998002875A1 Optical disc and process for the production of the same, and process for the production of sheet material |
| 01/22/1998 | WO1998002874A1 Optical pickup and recording and/or reproducing apparatus for optical disc |
| 01/21/1998 | EP0820057A1 Information recording medium |
| 01/21/1998 | EP0820056A1 Coma aberration correcting method and apparatus in optical pickup |
| 01/21/1998 | EP0820055A1 Optical head for optical disk drive |
| 01/21/1998 | EP0820054A2 Optical recording and reproducing device |
| 01/21/1998 | EP0820053A2 Optical disk, optical disk device, and optical disk recording method |
| 01/21/1998 | EP0819305A1 Liquid crystal optical storage medium with gray scale |
| 01/21/1998 | EP0544299B1 Data recording/reproducing apparatus capable of simultaneously performing both reproducing and recording from and in a single recording medium |
| 01/21/1998 | CN1170932A Optical pickup |
| 01/21/1998 | CN1170931A Optical pickup system for reading optical disks of different thicknesses |
| 01/21/1998 | CN1170929A Optical recording and reproducing apparatus |
| 01/21/1998 | CN1170882A Optical pickup |
| 01/20/1998 | US5710753 Multi-element grating beam splitter using double refraction to reduce optical feedback and associated light source noise |
| 01/20/1998 | US5710752 Apparatus using one optical sensor to recover audio information from analog and digital soundtrack carried on motion picture film |
| 01/20/1998 | US5710750 Optical disc device |
| 01/20/1998 | US5710749 Method and apparatus for determining an optical disc type |
| 01/20/1998 | US5710748 Off track detection system and method for ruggedized optical disk drive |
| 01/20/1998 | US5710672 Assembly for positioning the component parts of a laser detector grating unit (LDGU) |
| 01/20/1998 | US5710094 Heat resistant organic urea or thiourea color developer |
| 01/20/1998 | US5709978 Supperresolution readout thin film and information recording medium |
| 01/20/1998 | US5709764 Method for assembling a disc-shaped recording medium |
| 01/15/1998 | WO1998001858A1 Apparatus and methods for providing non-coherent laser illumination for multi-track reading apparatus |
| 01/15/1998 | WO1998001857A1 Magnification and tracking error correction system for multiple track optical disk reader |
| 01/15/1998 | WO1998001856A1 Optical information recorder/reproducer |
| 01/15/1998 | WO1998001855A1 Apparatus for reading or writing optical recording carriers |
| 01/15/1998 | WO1998001854A2 Device for scanning information tracks on a record carrier |
| 01/15/1998 | WO1998001853A2 Optical scanning device, and apparatus provided with such a device |
| 01/15/1998 | WO1998001852A1 Method of providing an optical data carrier with identity information |
| 01/15/1998 | WO1998001851A1 Optical apparatus for scanning a tape-shaped record carrier |
| 01/15/1998 | DE19628005A1 Verfahren und Anordnung zum Beschreiben von Glasmastern mit Binärdaten Method and system for describing glass masters with binary data |
| 01/15/1998 | DE19627793A1 Waveguide with single crystal titanate layer |
| 01/14/1998 | EP0818784A1 Information recording disk |
| 01/14/1998 | EP0818782A2 Methods for providing artwork on plastic information discs |
| 01/14/1998 | EP0818781A2 Optical system and objective lens for recording and/or reproducing an optical information recording medium |
| 01/14/1998 | EP0818780A1 Optical recording and reproducing device |
| 01/14/1998 | EP0818779A2 Optical pickup |
| 01/14/1998 | EP0818778A2 Sectored arrangement of wobble sections on an optical disk |
| 01/14/1998 | EP0818777A1 Optical seeking method and apparatus |
| 01/14/1998 | EP0818776A2 Optical disc apparatus accessing method and system therefor |
| 01/14/1998 | EP0818041A1 Spare and calibration sector management for optical worm media |
| 01/14/1998 | CN1170196A Photomagnetic recording medium and film |
| 01/14/1998 | CN1170195A Optical pick-up apparatus |
| 01/14/1998 | CN1170194A Optical disk drive |
| 01/14/1998 | CN1170193A Optical disc apparatus |
| 01/14/1998 | CN1170192A Damper for optical disk drive |
| 01/13/1998 | US5708653 Single-substrate multi-layer optical disk for read-only storage and phase change rewritable storage |
| 01/13/1998 | US5708652 Multi-layer recording medium and method for producing same |
| 01/13/1998 | US5708651 Optical disk having reduced track pitch and optical disk playback apparatus containing the same |
| 01/13/1998 | US5708650 Multiple format interchangeable optical recording medium and method of controlling same |
| 01/13/1998 | US5708649 Optical disk capable of storing information data at difference clock rates |
| 01/13/1998 | US5708648 Optical head apparatus including light focusing and refocusing lens systems |
| 01/13/1998 | US5708647 Laser power supply circuit as well as option recording and/or reading device comprising such a laser power supply circuit |
| 01/13/1998 | US5708646 Optical disk device |
| 01/13/1998 | US5708645 Semiconductor laser device to detect a divided reflected light beam |
| 01/13/1998 | US5708644 Optical head for optical disk drive |
| 01/13/1998 | US5708643 Multiple focus optical pickup system for alternatively reading a multiple number of optical disks |
| 01/13/1998 | US5708642 Optical head device with lens system for increasing beam diameter of light to be incident on objective lens |