| 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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| 03/03/1993 | EP0529589A2 Translating apparatus for an optical pickup device |
| 03/03/1993 | EP0529559A2 Thermal imaging apparatus |
| 03/03/1993 | EP0529056A1 Focus fiber mount. |
| 03/03/1993 | EP0528995A1 Semiconductor processor apparatus with dynamic wafer vapor treatment and particle volatilization |
| 03/03/1993 | CN1069593A 兼容光学扫描装置 Compatible optical scanning device |
| 03/03/1993 | CN1020013C Circuit for reversing magnetic field |
| 03/03/1993 | CN1020012C Coil arrangement |
| 03/03/1993 | CN1020011C Optical tracking device |
| 03/03/1993 | CN1020010C Track control circuit |
| 03/03/1993 | CN1020009C Detection circuit |
| 03/03/1993 | CN1020008C Supporting device for focusing and tracing |
| 03/03/1993 | CN1020007C The method and circuit compensating failure adjust voltage in circuit of focus and/or tracing |
| 03/02/1993 | US5191624 Optical information storing apparatus and method for production of optical deflector |
| 03/02/1993 | US5191589 Laser driver and optical disk drive apparatus |
| 03/02/1993 | US5191575 Plate spring and nut interconnecting for use in an optical pick-up moving apparatus |
| 03/02/1993 | US5191574 Optical memory method and apparatus utilizing frequency channeling and Stark effect |
| 03/02/1993 | US5191572 Optical recording and playback system of dual light source type |
| 03/02/1993 | US5191571 Tracking control method and apparatus for an optical disc system |
| 03/02/1993 | US5191570 Optical head locating mechanism for magnetically locating an optical head |
| 03/02/1993 | US5191568 Disc drive apparatus with tracking control based on multiple reference tracks and with automatic seek time adjustment |
| 03/02/1993 | US5191567 Method for playback of a portion of a recorded disk played before interruption of playback |
| 03/02/1993 | US5191566 Velocity detection method and apparatus therefor |
| 03/02/1993 | US5191565 Optical information recording medium |
| 03/02/1993 | US5191563 Method for increasing track density of magneto-optical storage media |
| 03/02/1993 | US5191484 Optical pick-up objective driving apparatus |
| 03/02/1993 | US5191221 Optical device determining the position and orientation of an object, and optical recording and/or reproducing apparatus including the device |
| 03/02/1993 | US5191204 Multi-beam optical system and method with power detection of overlapping beams |
| 03/02/1993 | US5190849 Optical recording medium containing carboxylic acid-base metallic complex and squarylium-base or croconium-base dye |
| 03/02/1993 | US5190800 Light resistance |
| 03/02/1993 | CA1314100C Managing data storage space on large capacity record media |
| 02/27/1993 | CA2076723A1 Coated material and the use thereof |
| 02/25/1993 | DE4227593A1 Optical scanning system for laser discs - controls laser beam deflection by acousto=optical unit, that has frequency varied w.r.t. feedback from signal reflected back from disc |
| 02/25/1993 | DE4127840A1 Optische abtastvorrichtung Optical scanning device |
| 02/24/1993 | EP0528512A1 Recording medium |
| 02/24/1993 | EP0528449A2 Device, method and apparatus for optical modulation |
| 02/24/1993 | EP0528425A2 Information recording medium and information reproducing apparatus for use therewith |
| 02/24/1993 | EP0528134A1 Optical tape |
| 02/24/1993 | EP0528106A1 Device for automatic casting, coating, painting testing and sorting of workpieces |
| 02/24/1993 | EP0285661B1 Focal spot position detector of an optical data recording/reproducing apparatus |
| 02/24/1993 | EP0207163B1 Apparatus for reading optical recording cards |
| 02/23/1993 | US5189660 Optical data storage system with unitary ferrous frame |
| 02/23/1993 | US5189659 Method and apparatus for recording and reproducing information by intermittent light emission from laser light source |
| 02/23/1993 | US5189658 Device for recording information on an optical data carrier |
| 02/23/1993 | US5189657 Circuit for writing and reproducing a modulation signal onto writable optical disk |
| 02/23/1993 | US5189655 Optical head for optical disk recording/reproducing apparatus including modified wollaston prism |
| 02/23/1993 | US5189654 Automatic gain control apparatus for use in optical disc recording and playback system |
| 02/23/1993 | US5189653 Optical disk device eliminating offset of actuator and offset eliminating method used thereby |
| 02/23/1993 | US5189652 Multi-disc recording and reproducing apparatus having detachable optical head units |
| 02/23/1993 | US5189578 Disk system with sub-actuators for fine head displacement |
| 02/23/1993 | US5189574 Flexible information storing disk apparatus having laminar air flow |
| 02/23/1993 | US5189531 Hologram production |
| 02/23/1993 | US5189293 Optical scanning apparatus including beam focal point position control when out of focus range |
| 02/23/1993 | US5189290 Optical card processing apparatus using tracking error signals to determine proper card orientation |
| 02/23/1993 | US5189153 Substituted phthalocyanines |
| 02/23/1993 | US5188923 Discontinuous islands of noble metal particles where laser beams can be focussed to individual ones; changing reflectivity to record information at heated site |
| 02/23/1993 | US5188922 Optical recording medium |
| 02/23/1993 | US5188875 Information recording medium and adhesive composition therefor |
| 02/23/1993 | US5188863 Direct effect master/stamper for optical recording |
| 02/23/1993 | CA1313912C Optical information recording apparatus provided with means for sampling and holding a servo signal when the intensity of a light bem is varied |
| 02/23/1993 | CA1313792C Method of manufacturing photo-mask and photo-mask manufactured thereby |
| 02/18/1993 | WO1993003482A1 Hub for optical recording medium and optical recording medium |
| 02/18/1993 | WO1993003481A1 Optical recording apparatus |
| 02/18/1993 | WO1993003427A2 Photorefractive systems and methods |
| 02/18/1993 | WO1993003073A1 Azo polymers for reversible optical storage |
| 02/18/1993 | CA2116106A1 Azo polymers for reversible optical storage |
| 02/18/1993 | CA2114226A1 Photorefractive systems and methods |
| 02/17/1993 | EP0527670A1 Magneto-optical read head |
| 02/17/1993 | EP0527602A2 Optical memory |
| 02/17/1993 | EP0527551A1 Methods of varying optical properties, optical devices, information recording media and information recording methods and apparatus |
| 02/17/1993 | EP0527539A2 An optical memory medium |
| 02/17/1993 | EP0527454A1 Information recording medium having recording layer with organic polymer and dye contained therein |
| 02/17/1993 | EP0527381A2 Compatible polymer blends with thermoplastic polycarbonates |
| 02/16/1993 | US5187702 Apparatus for moving an optical system |
| 02/16/1993 | US5187699 Method and apparatus for successively recording two EFM-modulated signals enabling detection of boundary condition for transitioning between signals |
| 02/16/1993 | US5187698 Data reading apparatus for identifying position of data tracks |
| 02/16/1993 | US5187697 Method of reading recorded information from information storage medium with tracks |
| 02/16/1993 | US5187696 Method for setting the loop gain in a focusing servo loop |
| 02/16/1993 | US5187615 Data separator and signal processing circuit |
| 02/16/1993 | US5187600 Apparatus for scanning an optical recording medium with a beam of light |
| 02/16/1993 | US5187298 Enantiotropic, ferroelectric smectic liquid crystal polymers; two thermodynamically stable phases; polyacrylates |
| 02/16/1993 | US5187248 Monomers and their use for the production of a laser-optical recording element which can be repeatedly erased and recorded on |
| 02/16/1993 | US5187052 High speed recording and erasing |
| 02/16/1993 | US5187043 Optical recording medium |
| 02/16/1993 | US5187012 Thermoplastic materials and article made therefrom |
| 02/16/1993 | US5186995 Having elastomeric layer with pigment which absorbs laser beam for recording and reflective retention layer which contains polyarylenevinylene resin and pigment absorbing different wavelength for erasing |
| 02/16/1993 | US5186994 Optical disc |
| 02/16/1993 | US5186976 Heat treatment of synthetic base material before or after providing a recording layer on the surface |
| 02/16/1993 | US5186867 Also thermochromic |
| 02/16/1993 | CA1313710C Method of recording position information of last track recorded with data in directory area |
| 02/11/1993 | DE4126461A1 Inorganic mol. sieve charged with water insol. organic dyestuff - comprises dyestuff having mol. size corresp. at most to pore size of mol. sieve, used as pigment or optical storage material |
| 02/10/1993 | EP0526925A1 Information recording device |
| 02/10/1993 | EP0526647A1 Optical recording medium |
| 02/10/1993 | EP0526641A1 Method for reproducing signal in optically recording medium |
| 02/09/1993 | US5185734 Calibrating and power-protecting laser drive circuits |
| 02/09/1993 | US5185733 Calibrating lasers for optical recording using a maximal readback signal amplitude as a criterion |
| 02/09/1993 | US5185732 Recording medium and recording and reproducing apparatus employing the recording medium |
| 02/09/1993 | US5185731 Optical data recording and reproducing apparatus including optical detector for detecting light beams reflected by a plane parallel plate and then diffracted by a diffraction grating |
| 02/09/1993 | US5185730 Method for reading data from optical disk |
| 02/09/1993 | US5185729 Optical head with improved tracking and focusing error capabilities |
| 02/09/1993 | US5185233 Light absorption; thermal decomposition, fading of dye compound |