| Patents for G11B 11 - Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group; Record carriers therefor (14,351) |
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| 01/26/2000 | EP0974962A2 Magneto-optical storage medium with double masking |
| 01/26/2000 | EP0974961A2 Magneto-optical recording medium and recording and reproducing method and optical head designed for the magneto-optical recording medium |
| 01/26/2000 | EP0974960A1 Apparatus for reproducing information and method for reproducing information |
| 01/26/2000 | EP0974958A1 Optical disc device |
| 01/26/2000 | EP0606498B1 Magneto-optic recording medium and method of its manufacture |
| 01/26/2000 | CN1242861A Optical disc type recording medium |
| 01/25/2000 | US6018512 System and method of encoding for identifying a given surface among several identically patterned disk surfaces |
| 01/25/2000 | US6018511 Magneto-optical recording medium and readout method of the same |
| 01/25/2000 | US6018505 Magneto-optical disc apparatus |
| 01/25/2000 | US6017645 Composite material for magnetooptic recording its preparation and its use |
| 01/25/2000 | US6017620 Magneto-optical recording medium |
| 01/25/2000 | US6017619 Perpendicular magnetic anisotropy, high coercivity, low curie point, and high kerr rotation |
| 01/25/2000 | US6016959 Card drive apparatus and card |
| 01/19/2000 | CN1241772A Optical disc system and method for controlling bias coil and light source to process information on storage medium |
| 01/19/2000 | CN1241771A Optical disc system having current monitoring circuit with controller for laser driver and method for operating same |
| 01/19/2000 | CN1241770A Laser driver for controlling electrical current directed to laser in optical dis system |
| 01/18/2000 | US6016303 Optical disc having a protective layer which is thicker at its outer periphery |
| 01/18/2000 | US6016297 Information reproduction method and apparatus that move light beam toward outer perimeter of optical disk in response to tracking error |
| 01/18/2000 | US6016239 Transducer apparatus including transducer with recording medium contact line perpendicular to transducer pivot axis |
| 01/18/2000 | CA2134927C Magnetooptical recording medium allowing super-resolution, and information reproduction method using the medium |
| 01/13/2000 | WO2000002196A1 System and method for write location defect compensation in computer storage media |
| 01/13/2000 | DE19830936A1 Magneto-optical storage device with double masking to allow storage of data in two or more vertically superposed magnetic layers |
| 01/12/2000 | EP0971345A1 Optical disk, method for recording and reproducing write-once information on and from optical disk, optical disk reproducing device, optical disk recording and reproducing device, device for recording write-once information on optical disk, and optical disk recording device |
| 01/12/2000 | EP0971343A2 Method and apparatus for moving a carriage assembly from an initial position to a target position |
| 01/12/2000 | CN1241279A Optical disk, method and device for recording write-once information on and from optical disk, method for reproducing same, optical disk reproducing, recording and recording and reproducing devices |
| 01/12/2000 | CN1048349C Device for driving magnetic brasing coil head of small magnetic disc recording and playing set |
| 01/11/2000 | US6014726 Storage apparatus adapted to interface with a host apparatus for processing two different types of recording media |
| 01/11/2000 | US6014350 Information reproducing or recording apparatus provided with memory for storing data, and information reproducing or recording method using the same apparatus |
| 01/11/2000 | US6014348 Method and apparatus of reading written information from magneto-optical writing media |
| 01/11/2000 | US6014255 Polarizing beam splitter and magneto-optic reading device using the same |
| 01/05/2000 | EP0969455A1 Optical head unit for optical disk apparatus |
| 01/05/2000 | EP0969452A1 Information reproducer, information recorder and reference mark detection circuit |
| 01/05/2000 | CN1240295A Optical disc driving system and the insulator for damping unhoped mechanical force affection |
| 01/05/2000 | CN1240290A Compact disc system having current monitoring circuit assembly and operation method thereof |
| 01/05/2000 | CN1048107C Circuit of command of modulation of magnetic field or enregistering of magnet-optical |
| 01/04/2000 | US6011764 Optical disk and optical disk apparatus |
| 01/04/2000 | US6011673 Vertical positioning system for a magnetic head base |
| 01/04/2000 | US6010780 Magneto-optical memory medium |
| 12/30/1999 | DE19915698A1 Optical information storage device e.g. for reproduction of information stored on magnetooptical recording medium |
| 12/28/1999 | US6009064 Optical head having dielectric transition layer in near-field optical storage system |
| 12/28/1999 | US6009063 Universal portable minidisk drive system |
| 12/28/1999 | US6009061 Cartridge-loading apparatus with improved base plate and cartridge receiver latch |
| 12/28/1999 | US6009051 Magnetic head device |
| 12/28/1999 | US6009050 Reading method for magneto-optical recording disc, magneto-optical recording disc driving device and magneto-optical recording medium |
| 12/28/1999 | US6007878 Depositing the inorganic dielectric film on the substrate in plasma chamber; depositing the recording layer on the inorganic dielectric film |
| 12/23/1999 | WO1999066502A1 Improved multilayer optical medium for near-field optical recording and reading |
| 12/22/1999 | EP0965987A2 Magneto-optical recording medium |
| 12/22/1999 | EP0965986A2 "Magneto-optical readout method, and magneto-optical readout head and method for making same" |
| 12/22/1999 | EP0965983A2 Optical pickup apparatus, tracking apparatus and optical disk apparatus |
| 12/22/1999 | EP0579843B1 Optical pickup apparatus for magneto-optical storage |
| 12/22/1999 | CN1239300A Method and apparatus for retrieving data from storage device |
| 12/22/1999 | CN1239299A Method and apparatus for retrieving data from storage device |
| 12/22/1999 | CN1239298A Method and apparatus for retrieving data from storage device |
| 12/22/1999 | CN1239297A Method and apparatus for retrieving data from storage device |
| 12/22/1999 | CN1239295A Focus capture for optical disc system |
| 12/22/1999 | CN1239294A Focus capture for optical disc system |
| 12/22/1999 | CN1239288A Method of changing rotational rate of storage medium from initial rate to desired rate |
| 12/22/1999 | CN1239287A Servo control system for information storage device |
| 12/22/1999 | CN1239286A Focusing method and system for focus capture and focus control in optical disc system including detection of quad sum signal to close focus |
| 12/22/1999 | CN1239285A Analog to digital converter and assembly for use in optical drive system and method therefore |
| 12/21/1999 | US6005830 System for checking the recoding state of data on a magneto-optical disk |
| 12/16/1999 | WO1999065021A2 Magneto-optical data storage system |
| 12/16/1999 | WO1999065019A2 Parallel coded spread spectrum communication for data storage |
| 12/16/1999 | DE19925486A1 Optical disc drive system with pivotted arm |
| 12/14/1999 | US6002656 Device for inspecting the surface of disc-shaped recording medium |
| 12/14/1999 | US6002653 Magneto-optical head unit capable of compensating the Kerr ellipticity |
| 12/14/1999 | US6001953 Polycarbonates suitable for use in optical articles |
| 12/14/1999 | US6001467 Dielectric film, magneto-optic memory film, dielectric film and reflective films where the memory film is an alloy of gadolinium, terbium, and iron in which the ratio between gd and tb is controlled; improved quality signal reproduction |
| 12/09/1999 | WO1999063539A1 Efficient linearization of saturation channels |
| 12/09/1999 | WO1999063536A2 Very-high-density memory device utilizing a scintillating data-storage medium |
| 12/09/1999 | WO1999063534A1 Optical recording medium |
| 12/09/1999 | WO1999063530A1 A magneto-optical recording system employing linear recording and playback channels |
| 12/09/1999 | WO1999048096A3 Recording/reproduction and/or editing of real time information on/from a disc like record carrier |
| 12/09/1999 | DE19925590A1 Magneto-optical recording medium |
| 12/08/1999 | EP0962922A1 Compositions for protective films and optical recording media |
| 12/08/1999 | CN1238060A Recording medium and its reproducer |
| 12/07/1999 | US5999513 Optical disc substrate having relatively thicker central supporting portion and relatively thinner recording portion |
| 12/07/1999 | US5999512 Magnetooptical disk having a thermal diffusion layer to suppress thermal transmission between adjacent information tracks |
| 12/07/1999 | US5999505 Information processing device for continuously and discontinuously processing recorded data and recording medium therefor |
| 12/07/1999 | US5999502 Optical information recording/reproducing apparatus having focus servo control compensation for lands and grooves |
| 12/07/1999 | US5999303 Micro-machined mirror using tethered elements |
| 12/07/1999 | CA2113877C Information recording medium and method of fabricating the same |
| 12/02/1999 | WO1999049455A3 Integrated micro-optical systems |
| 12/02/1999 | DE19921791A1 Das Feld verstärkender Magnetpol für eine optische Aufzeichnung The field-enhancing magnetic pole for an optical recording |
| 12/01/1999 | CN1237261A Objective actuator |
| 11/30/1999 | US5995474 Flying type optical head integrally formed with light source and photodetector and optical disk apparatus with the same |
| 11/30/1999 | US5995472 Laser beam forming temperature distribution of two peaks on a magneto-optical recording medium |
| 11/30/1999 | US5995470 Method of recording and reproducing information signals and apparatus for editing the same |
| 11/30/1999 | US5995461 Method and system for simultaneous storage and/or retrieval (storval) of a plurality of data on a disk means |
| 11/30/1999 | US5995333 Positioning a magnetic head base of a magneto-optical disk drive |
| 11/30/1999 | US5993971 Optical information record medium |
| 11/30/1999 | US5993937 Magneto-optic recording medium and method of fabricating the same |
| 11/30/1999 | US5993616 Method for producing a magneto-optical recording medium |
| 11/30/1999 | CA2271543C Multiple data surface optical data storage system |
| 11/30/1999 | CA2271542C Multiple data surface optical data storage system |
| 11/30/1999 | CA2271541C Multiple data surface optical data storage system |
| 11/30/1999 | CA2271540C Multiple data surface optical data storage system |
| 11/30/1999 | CA2041366C Recording and/or reproducing apparatus for using magneto-optical disc |
| 11/25/1999 | DE19816278C1 Rotary drive transmission shaft |
| 11/24/1999 | EP0959463A1 Optical pickup device |