| 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) |
|---|
| 07/14/1993 | EP0551011A2 Recording error determination method and data recording apparatus |
| 07/13/1993 | US5228024 Magneto-optical disk possessing enhanced anti-reflective and anti-oxidative properties |
| 07/13/1993 | US5227938 High resolution magneto-optic read head |
| 07/13/1993 | CA1320269C Magneto-optic recording structure and method |
| 07/08/1993 | WO1993013523A1 Magneto-optical overwrite recording process by which c/n ratio is improved, and magneto-optical overwrite recording apparatus which operates in this process |
| 07/07/1993 | EP0550267A1 A magnetic head driving device |
| 07/07/1993 | EP0550096A2 Magneto-optical scanning device |
| 07/07/1993 | EP0550036A2 Optical apparatus |
| 07/07/1993 | EP0549897A1 Substrate for optical recording medium and magneto-optical recording medium using same |
| 07/07/1993 | CN1074058A Tribo-attractive contact slider for an optical read/write system |
| 07/06/1993 | US5226030 Magneto-optical recording and reproducing device |
| 07/06/1993 | US5226029 Electric charge image recording medium and recording/reproducing apparatus |
| 07/06/1993 | US5226024 Disk recording and/or reproducing apparatus |
| 07/06/1993 | US5225289 Opto-magnetic recording medium having plurality of exchange-coupled magnetic layers |
| 07/06/1993 | CA1319986C Magneto-optical recording apparatus and energizing circuit for use in such a magneto-optical recording apparatus |
| 07/06/1993 | CA1319985C Method of and apparatus for recording an information signal |
| 07/06/1993 | CA1319984C Optically readable record carrier with servo track |
| 07/06/1993 | CA1319983C Method of and apparatus for successively recording efm-modulated signals |
| 06/30/1993 | EP0549562A2 Method and apparatus for recording and reproducing information |
| 06/30/1993 | EP0549246A2 Multilayer film materials system |
| 06/30/1993 | EP0549237A2 Optical disk storage system and head apparatus therefor |
| 06/30/1993 | EP0549236A2 Optical disk storage system and head apparatus therefor |
| 06/30/1993 | EP0549144A2 Magnetic head for magnetooptical recording |
| 06/30/1993 | EP0549138A1 Magneto-optical disk and the reproducing method thereof |
| 06/30/1993 | CN1021492C Magneto-optical recording or/and reproducing set |
| 06/29/1993 | US5224087 Apparatus for recording compressed digital information to an optical disc |
| 06/29/1993 | US5224086 Spindle servo system for magneto-optical recording/playback apparatus |
| 06/29/1993 | US5224080 Method , apparatus, and medium for magneto-optical recording |
| 06/29/1993 | US5224079 Recording apparatus for magneto-optical disc and disc cartridge misinsertion preventing mechanism |
| 06/29/1993 | US5224068 Recording method for magneto-optic memory medium |
| 06/29/1993 | US5223999 Record holder for a magneto-optical recording device with a retractable magnetic head |
| 06/29/1993 | US5223983 Compound prism including interfaces with curvatures of the order of a laser wave length |
| 06/24/1993 | WO1993012523A1 Optical scanning device |
| 06/24/1993 | WO1993012522A1 Apparatus for recording and reproducing optical information |
| 06/24/1993 | WO1993012520A1 Magnetic disk medium with designed textured surfaces and controlled surface roughness and method of providing same |
| 06/23/1993 | EP0547915A2 Information recording method and apparatus |
| 06/23/1993 | EP0547624A2 Magneto-optical head system |
| 06/17/1993 | DE4140806A1 Optische abtastvorrichtung Optical scanning device |
| 06/16/1993 | EP0546818A1 Information recording and reproduction apparatus |
| 06/16/1993 | EP0546189A1 Opto-magnetic data recording system |
| 06/16/1993 | EP0545945A1 Process for shortening the access time (track control circuit) |
| 06/16/1993 | CN1021260C Method and apparatus for recording information signal |
| 06/15/1993 | US5220554 Reproduced signal processing apparatus |
| 06/15/1993 | US5220550 Optical beam system for optical disk drives |
| 06/15/1993 | US5220544 Magnetic optical disk player having improved magnetic field orientations |
| 06/15/1993 | US5220543 Compact optical disc recording/reproducing system |
| 06/15/1993 | US5220467 Circuit arrangement for reversing a magnetic field |
| 06/15/1993 | US5220222 Magnetic bushings for an optical access actuator |
| 06/10/1993 | WO1993011474A1 Control method and circuit |
| 06/10/1993 | WO1993011470A1 Oriented biological material for optical information storage and processing |
| 06/09/1993 | EP0545735A1 An optical pickup apparatus and a hologram element used for same |
| 06/09/1993 | EP0545722A1 Magneto-optical disk |
| 06/09/1993 | EP0545690A2 Reproduction-only magnetooptical disk, and reproduction method and reproduction apparatus therefor |
| 06/09/1993 | EP0545579A1 External magnetic field generation apparatus and a magneto-optical recording apparatus |
| 06/09/1993 | EP0545524A1 Hologram system |
| 06/09/1993 | EP0545371A1 Optical tape |
| 06/09/1993 | EP0545133A2 Optical pickup device and focusing servo device employed therein |
| 06/09/1993 | EP0544731A1 Optical scanning device. |
| 06/09/1993 | DE4139945A1 Regelverfahren und regelkreis Control method and loop |
| 06/08/1993 | US5218599 Method of recording and reproduction of information using a recording medium available for information overlap recording, a recording medium and a recording and reproducing apparatus using the method |
| 06/08/1993 | US5218595 Device for reading oblong segments of an advancing storage medium |
| 06/08/1993 | US5218591 Optical disk apparatus for shaping pits recorded on an optical disk |
| 06/08/1993 | US5218587 Magnetic optical recording/reproducing apparatus |
| 06/08/1993 | US5218582 Magneto-optic readout using a polarization-preserving optical guide |
| 06/08/1993 | US5218581 Magneto-optical recording medium and method for reproducing signal using an external magnetic field from such a medium |
| 06/08/1993 | US5218488 Method and apparatus for producing write and erase magnetic field for disk drive |
| 06/05/1993 | CA2083976A1 Optical tape |
| 06/02/1993 | EP0544504A2 A disc reproducing apparatus and recording apparatus |
| 06/02/1993 | EP0544302A2 A magnetic head holding apparatus for recording a magneto-optical disc |
| 06/02/1993 | EP0544299A2 Data recording/reproducing apparatus capable of simultaneously performing both reproducing and recording from and in a single recording medium |
| 06/02/1993 | EP0544017A1 Method for recording on disc |
| 06/01/1993 | US5216663 Magneto-optic recording medium and manufacturing method |
| 06/01/1993 | US5216643 Rotary arm and optical head for a magneto-optic disk drive |
| 06/01/1993 | US5216562 Multi-beam optical recording system and method |
| 06/01/1993 | US5215808 Optical tape recording media with integral dust-defocusing transparent film |
| 05/27/1993 | WO1993010531A1 Small size constant torque voice coil motor |
| 05/27/1993 | WO1993010530A1 Magnetooptical recording media |
| 05/27/1993 | WO1993010527A1 Magnetooptical disk apparatus and recording medium |
| 05/26/1993 | EP0543800A2 Magneto optical memory element |
| 05/26/1993 | EP0543580A2 Magneto-optical recording apparatus capable of reproducing recording information while recording |
| 05/26/1993 | EP0543505A1 Plural-beam optical head |
| 05/26/1993 | EP0542910A1 Thermomagnetic recording system having high storage density and direct-overwrite capability. |
| 05/26/1993 | CN1020976C Method and device for sub-micron processing surface |
| 05/25/1993 | US5213862 Forming a disk by injection molding poly-1,4-dimethylene-2,3-diethylcyclopentane |
| 05/19/1993 | EP0542730A2 Optical disc and disc drive apparatus for writing/reading data into/from the disc |
| 05/19/1993 | EP0542558A2 Optical information recording/reproducing apparatus |
| 05/19/1993 | EP0542423A2 Improved recording disk hub bond |
| 05/19/1993 | EP0542176A2 Magneto-optical recording medium |
| 05/19/1993 | CN1020820C Magnetooptical recording media and initialization methods thereof |
| 05/18/1993 | US5212680 Mass storage device employing array of transducers "cocked" in relation to reciprocal movement axis |
| 05/18/1993 | US5212572 Optical data storage system with compact holographic polarization-sensing or reflectivity-sensing optical storage head |
| 05/13/1993 | WO1993009535A1 Focus detecting mechanism and optical head and optical storage using the same |
| 05/12/1993 | EP0541241A2 Track jump operation in two-head-type video disc player |
| 05/12/1993 | EP0541209A2 Optical head servo device |
| 05/12/1993 | EP0540847A1 Improvement in magneto-optical recording medium |
| 05/11/1993 | US5210724 Optomagnetic recording method and apparatus which precludes an interface magnetic wall within block magnetic wall |
| 05/05/1993 | EP0540275A2 A circuit apparatus for driving a magnetic head |
| 05/05/1993 | EP0540264A2 Magneto-optical recording apparatus |
| 05/05/1993 | EP0539966A2 A magneto-optical disc control system and method |
| 05/04/1993 | US5208800 Mode splitter and magneto-optical signal detection device |