| 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) |
|---|
| 02/04/1993 | WO1993002454A1 Method for three-dimensional optical |
| 02/04/1993 | DE4225391A1 Laser or compact disc player - scans automatic data from data area or domain to determe whether laser disc or compact disc is involved |
| 02/03/1993 | EP0526250A2 Method of apparatus for playing back recordable optical disc |
| 02/03/1993 | EP0526234A2 Optical recording medium, production thereof, substrate for optical recording medium, and production thereof |
| 02/03/1993 | EP0526224A1 Optical recording medium, process for producing recording medium, and information recording method |
| 02/03/1993 | EP0526185A2 Information recording/reproducing method |
| 02/03/1993 | EP0526113A2 Optical crosstalk attenuation for an optical disk drive |
| 02/03/1993 | EP0526017A2 Apparatus for and method of reproducing information from recordable optical disc |
| 02/03/1993 | EP0525896A2 Compatible optical scanning device |
| 02/03/1993 | EP0525775A2 Optical recording medium driving apparatus |
| 02/03/1993 | EP0525742A2 Objective lens moving actuator |
| 02/03/1993 | EP0525286A1 Surface inspection apparatus |
| 02/03/1993 | EP0525192A1 Optically recording medium |
| 02/03/1993 | EP0525191A1 Optically recording medium |
| 02/03/1993 | EP0324823B1 Reversible infra-red recording medium |
| 02/02/1993 | US5184343 Compensation for dust on an optical disk by increasing laser writing power |
| 02/02/1993 | US5184341 Information recording method having successive data write and data verify operations |
| 02/02/1993 | US5184340 Method and apparatus for recording and reproducing information on an optical medium |
| 02/02/1993 | US5184339 Information recording-reproducing head driving circuit |
| 02/02/1993 | US5184338 Optical disc system with improved track jumping operation |
| 02/02/1993 | US5184337 Optical recording/reproducing apparatus having means for periodically supervising drive current supplied to actuator |
| 02/02/1993 | US5183726 Using photochromic material capable of recording and erasing information utilizing color change; useful for displays, filters for adjusting amount of light, photographic printing and paint |
| 02/02/1993 | US5183597 Method of molding microstructure bearing composite plastic articles |
| 02/02/1993 | US5183547 Sputtering apparatus and system for sputtering employing same |
| 01/27/1993 | EP0524628A1 Optical magnetic disk recording/reproducing apparatus |
| 01/27/1993 | EP0524603A1 Objective lens holding device |
| 01/27/1993 | EP0524348A1 Surface inspection apparatus |
| 01/27/1993 | EP0524315A1 Method for reproducing signal in optically recording medium |
| 01/26/1993 | US5182743 Optical disk arrangement with diffractive tracks allowing positional control |
| 01/26/1993 | US5182742 Recording and/or reproducing apparatus with a disc cartridge temperature sensor |
| 01/26/1993 | US5182741 Optical disk recording/reproducing device utilizing a constant angular velocity method with a constant linear velocity formatted optical disk |
| 01/26/1993 | US5182740 Method and apparatus for correctly storing data recorded on a rotational disc-shaped recording medium despite occurrence of clock synchronization disorder |
| 01/26/1993 | US5182739 Apparatus for maintaining a disk and optical head in orthogonal relation |
| 01/26/1993 | US5182738 Objective lens actuator using a balance weight therein |
| 01/26/1993 | US5182737 System for reading optical recording medium using reference liners which are positioned perpendicular to data tracks |
| 01/26/1993 | US5182736 Deceleration control system for positioning an optical head in an optical disk unit |
| 01/26/1993 | US5182735 Magneto-optic readout apparatus using polarization switching of readout beam |
| 01/26/1993 | US5182669 High density optical disk and method of making |
| 01/26/1993 | US5182444 Split lens displaced long from each other along plane of cut |
| 01/26/1993 | US5182186 Optical information recording medium |
| 01/26/1993 | CA1313265C Recording format for an optical recording medium |
| 01/21/1993 | WO1993001596A1 Process for shortening the access time (track control circuit) |
| 01/21/1993 | WO1993001593A1 Audio record carrier and players for playing said record carrier |
| 01/21/1993 | WO1992021224A3 Optical disk drive assembly having selectable compression and emulation |
| 01/21/1993 | DE4123199A1 Mechanical removal of surface layers from compact disc base - using tool that is moved across surface of disc securely held in carrier with depth of cut equal to layer thickness |
| 01/20/1993 | EP0523985A2 Disc recording apparatus |
| 01/20/1993 | EP0523959A2 Novel phthalocyanine compounds, production method thereof, and near infrared ray absorption materials containing the same |
| 01/20/1993 | EP0523952A2 Optical information recording and reproducing apparatus and recording medium |
| 01/20/1993 | EP0523900A2 method of detecting information from an optical or magnetooptical recording medium, and an optical recording medium |
| 01/20/1993 | EP0523622A2 Mirror drive mechanism in optical disc player |
| 01/20/1993 | EP0523570A2 Optical pickup device |
| 01/20/1993 | EP0523334A2 Optical information recording medium and reproducing apparatus for reproducing information from the medium |
| 01/20/1993 | EP0523319A1 A photo-detecting device |
| 01/20/1993 | CN1068235A Photoelectric pickup |
| 01/20/1993 | CN1068200A Quantitative analysis for growth of spur and bone mineral density and x-ray image system thereof |
| 01/19/1993 | US5181265 Optical coupling apparatus for introducing and coupling an incident light into a wave guide |
| 01/19/1993 | US5181195 Tracking error signal generator with dc offset cancellation |
| 01/19/1993 | US5181194 Writing device for optical memory card |
| 01/19/1993 | US5181193 Optical pickup device for a recording and/or reproducing apparatus |
| 01/19/1993 | US5181161 Signal reproducing apparatus for optical recording and reproducing equipment with compensation of crosstalk from nearby tracks and method for the same |
| 01/19/1993 | US5180909 Optical pickup using diffracted light |
| 01/19/1993 | US5180595 Metal mold for resin substrate for an optical recording medium |
| 01/19/1993 | US5180470 Orienting crystalline materials and single crystals, information storage, improved properties |
| 01/19/1993 | CA1312951C Optical record cards |
| 01/17/1993 | CA2073942A1 Mirror drive mechanism in optical disc player |
| 01/13/1993 | EP0522926A1 Optical disc player system |
| 01/13/1993 | EP0522853A2 Digital data reproducing apparatus and method |
| 01/13/1993 | EP0522499A2 Driving apparatus for optical recording medium with accurate optical head position detection |
| 01/13/1993 | EP0522170A1 Recording/reproducing apparatus |
| 01/13/1993 | EP0456767A4 Erasable optical information storage system |
| 01/12/1993 | US5179547 Phase change optical information recording medium including means for preventing movement of the recorded portion |
| 01/12/1993 | US5179546 Magneto-optical disk and process for manufacturing the same |
| 01/12/1993 | US5179545 Tracking control apparatus for controlling the tracking of a target track |
| 01/12/1993 | US5179504 Shutter mechanism undergoing rotational and translational movements for use in recording medium and/or reproducing apparatus using card-like medium |
| 01/12/1993 | US5179268 Apparatus for detecting inclination of an optical card |
| 01/12/1993 | US5179267 Data reading and/or writing apparatus of type using optical card |
| 01/12/1993 | US5178995 Optical information recording medium |
| 01/12/1993 | US5178926 Hydrogenated vinyl aromatic hydrocarbon polymer composition and optical disc substrate |
| 01/09/1993 | CA2073310A1 Method of detecting information from magnetooptical recording medium, method of detecting information from optical recording medium, and optical recording medium |
| 01/07/1993 | EP0521619A2 Multiple data surface optical data storage system and method |
| 01/07/1993 | EP0521487A1 Information recording medium and reproducing device therefor |
| 01/07/1993 | EP0521454A2 Optical information recording/reproducing apparatus |
| 01/07/1993 | EP0521236A2 Method and apparatus for identifying signal format for use in disk player |
| 01/07/1993 | EP0497898A4 Sulfonated polyaniline salt compositions, processes and uses |
| 01/07/1993 | DE4220694A1 Optical disc for information recording - is divided into two areas of memory with one area having CAV mode and other CLV mode of recording |
| 01/07/1993 | DE4209890A1 Optical disc drive with intensity controlled laser diode - separates received signal into high and low frequency current components that are summed and amplified |
| 01/07/1993 | DE4209888A1 Optical disc drive with controlled laser diode - holds intensity at stable valve by monitoring current of photodiode and adding value to reference signal to provide signal used to regulate laser diode |
| 01/07/1993 | DE4122231A1 Prodn. of optically readable information storage devices - from vinyl] chloride-vinyl] ester] copolymers |
| 01/06/1993 | CN1067761A Type of error signalling for optical information media |
| 01/05/1993 | US5177732 Optical recording using an agglomerating recording medium which changes reflectivity upon recording |
| 01/05/1993 | US5177727 Rotary recording medium having a guide track and recording and reproducing apparatus therefor |
| 01/05/1993 | US5177726 Apparatus for recording information on and/or reproducing information from optical disc including focus servo initialization using wobble pits |
| 01/05/1993 | US5177725 Servo apparatus with an expanded pull-in range |
| 01/05/1993 | US5177724 Optical tape recorder using a resonant flexure scanner |
| 01/05/1993 | US5177723 Pickup movement device for detecting speed using pickup driving coil |
| 01/05/1993 | US5177720 Optical disc recording system |
| 01/05/1993 | US5177719 Data track accessing apparatus |
| 01/05/1993 | US5177718 Optical disk apparatus |
| 01/05/1993 | US5177717 Optical memory medium and its information recording and erasing method and apparatus |
| 01/05/1993 | US5177640 Two-axis moving coil actuator |