| 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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| 03/08/1994 | US5293287 Apparatus and methods for backside stabilization of flexible optical media in information storage system |
| 03/08/1994 | US5293038 Optical pick-up head apparatus wherein hollographic optical element and photodetector are formed on semiconductor substrate |
| 03/08/1994 | US5292616 Optical card of closed type |
| 03/08/1994 | US5292615 Phthalocyanine color, and polymethine cyanine dye as absorber |
| 03/08/1994 | US5292592 Optical information recording medium in which a protective layer comprises a Ni-Cr alloy layer |
| 03/08/1994 | US5292568 Electroconductive particles |
| 03/08/1994 | US5292550 UV setting resin coating |
| 03/08/1994 | CA1327645C Device for reversible optical data storage |
| 03/03/1994 | WO1994005008A1 Compositions of bacteriorhodopsin variants with increased memory time and their use |
| 03/03/1994 | WO1994004960A1 Motion picture digital sound system and method with primary sound storage edit capability |
| 03/03/1994 | WO1994004365A1 Data-recordal using laser beams |
| 03/03/1994 | DE4329351A1 Optical recording medium with good reproduction - has photochromic layer contg. a bis(thienyl:ethene anhydride) with a light-activated ring opening/closing site |
| 03/03/1994 | DE4329143A1 High density optical disc - stores information for reading by two polarising light beams operating on two substrates as deflection layers for even and odd tracks respectively |
| 03/03/1994 | DE4228833A1 Signal processing circuit balancing method - using circuit with one stage always operating normally, while another stage is balanced |
| 03/02/1994 | EP0584834A2 Optical disc recording/reproducing apparatus |
| 03/02/1994 | EP0506699B1 Optical scanning device |
| 03/02/1994 | CN2158129Y Cylinder type optical memory |
| 03/02/1994 | CN1083253A Method for reducing lead-in a laser disk reproducing apparatus |
| 03/02/1994 | CN1083252A Zoned record carrier |
| 03/02/1994 | CN1023920C Optical scanning device |
| 03/01/1994 | WO1994006608A1 Process and device for mechanically removing a layer from the substrate material of a disk-shaped information carrier |
| 03/01/1994 | US5291567 Electro-optic waveguide deflector using a nonlinear optic film or liquid-crystal overlay cell for use in an optical pickup head |
| 03/01/1994 | US5291473 Optical storage media light beam positioning system |
| 03/01/1994 | US5291471 Recording/reproducing system using phase encoding of optical storage medium |
| 03/01/1994 | US5291470 Optical information recording method |
| 03/01/1994 | US5291467 Disc recording apparatus for recording a signal without losing the signal during an occurrence of a track jump |
| 03/01/1994 | US5291466 Automatic control system for a tracking servo unbalance of optical disk player |
| 03/01/1994 | US5291464 Speed and position control apparatus for positioning a movable object |
| 03/01/1994 | US5291463 Optical card reproducing apparatus for reproducing information with a two-dimensional solid-state imaging device |
| 03/01/1994 | US5291268 Method and apparatus for determining a path difference in a Michelson interferometer |
| 03/01/1994 | US5290877 Information recording medium and adhesive composition therefor |
| 02/23/1994 | EP0583845A1 Information storage system |
| 02/23/1994 | EP0583754A1 Disk player |
| 02/23/1994 | EP0583638A1 CD-player |
| 02/23/1994 | EP0583416A1 Optical data storage and retrieval system and method |
| 02/23/1994 | EP0345352B1 Track-jump device for a disc device |
| 02/23/1994 | CN1082751A Eccentrieity compensator for optical disk player and compensating method therefor |
| 02/23/1994 | CN1082741A Device for optically scanning a surface |
| 02/22/1994 | US5289479 Laser light beam generating apparatus |
| 02/22/1994 | US5289456 Method of forming a magneto-optical disk hub in which the inner peripheral edge portion of the spindle opening is strengthened and made abrasion resistant |
| 02/22/1994 | US5289454 Optical disc addressing devices a method of use thereof |
| 02/22/1994 | US5289453 Coverting pulse contained in digital signals into pulse train modulation of laser power to over write |
| 02/22/1994 | US5289451 Optical information recording/reproduction apparatus including means for detecting the type of recording medium |
| 02/22/1994 | US5289450 Method of and apparatus for playing back recordable optical disc |
| 02/22/1994 | US5289449 Circuit for controlling optical pickup position in optical disc apparatus after power is turned off |
| 02/22/1994 | US5289447 Track cross signal generation circuit of optical disk device for correctly outputting track cross signal and correctly and stably carrying out seek operation even within high-speed region of beam |
| 02/22/1994 | US5289446 Device for scanning a record carrier |
| 02/22/1994 | US5289445 Suspension system for focus actuator of an optical disk drive |
| 02/22/1994 | US5289444 Galvanomirror unit |
| 02/22/1994 | US5289443 Apparatus for playing optical recording media of different recording densities |
| 02/22/1994 | US5289442 Optical scanner with a long fast access stroke |
| 02/22/1994 | US5289440 Optical reading device and optical recording device |
| 02/22/1994 | US5289407 Method for three dimensional optical data storage and retrieval |
| 02/22/1994 | US5289319 Apparatus and method for detecting physical orientation of a position system and for calibrating an optimum control for the system that is usable in optical disk recorders |
| 02/22/1994 | US5289313 Optical head using semiconductor laser array as light source |
| 02/22/1994 | US5289231 Apparatus for manufacturing disc medium |
| 02/22/1994 | US5289088 DC linear motor |
| 02/22/1994 | US5289001 Laser beam scanning apparatus having a variable focal distance device and the variable focal distance device for use in the apparatus |
| 02/22/1994 | US5288982 Method for changing a file name of a directory in a non-rewritable record medium |
| 02/22/1994 | CA1327248C Molding compositions of low double refraction |
| 02/17/1994 | WO1994003891A1 Device and method for disc recording |
| 02/17/1994 | DE4323971A1 CD player objective lens with correction for chromatic aberration - uses cascaded annular surfaces on lens to vary optical path length within lens |
| 02/17/1994 | DE4226868A1 Zubereitungen von Bakteriorhodopsin-Varianten mit erhöhter Speicherzeit und deren Verwendung Preparations of bacteriorhodopsin variants with increased storage time and their use |
| 02/16/1994 | EP0583036A2 Device for optically scanning a surface |
| 02/16/1994 | EP0582996A1 Light-amount control device for an optical-disk recording reproduction apparatus |
| 02/16/1994 | EP0582720A1 Disk reproducing apparatus |
| 02/16/1994 | EP0436018B1 Disk-like recording medium |
| 02/16/1994 | EP0352333B1 Data recording medium |
| 02/16/1994 | CN1082238A Modulating method |
| 02/16/1994 | CN1082235A A device for processing disc-shaped registration carriers |
| 02/16/1994 | CN1082234A An installation for manufacturing registration carriers |
| 02/16/1994 | CN1082233A Recording and reproduction of items of information using rom-ram storage media |
| 02/16/1994 | CN1023844C Method of and device for providing record carrier with pattern of areas having modified optical properties |
| 02/15/1994 | US5287367 Apparatus for controlling semiconductor laser |
| 02/15/1994 | US5287342 Apparatus and method for reproducing information |
| 02/15/1994 | US5287341 Rotating optical head apparatus |
| 02/15/1994 | US5287340 Differential amplifier for optical detectors in an optical data storage system |
| 02/15/1994 | US5287339 Optical information processing apparatus for holding a lens at a predetermined position along a tracking path at pulling-in of focusing control |
| 02/15/1994 | US5287338 Error signal generation for light beam reflected from optical disk with plurality of light detecting elements |
| 02/15/1994 | US5287337 Optical pickup having flexible wiring plate with focusing effective length which eliminates plate restoring force induce pickup tilt during focusing |
| 02/15/1994 | US5287335 Optical disk device for record and reproduction of additional information besides reproduction of basic one |
| 02/15/1994 | US5286965 Anticollision system for objective lens in an optical data recording apparatus |
| 02/15/1994 | US5286583 Forming thin film on transparent substrate, covering with photoresist, exposing to light of different intensities, developing, etching exposed thin film, eliminating resist in separate steps for each light intensity |
| 02/09/1994 | EP0582446A2 Optical data recording/reproducing apparatus and storage medium for it |
| 02/09/1994 | EP0582059A2 Magneto-optical head assembly |
| 02/09/1994 | EP0581871A1 Method and apparatus for optical imaging and measurement |
| 02/09/1994 | CN1081769A Magneto-optical recording materials system |
| 02/08/1994 | US5285517 Surface treated by silver ion exchange in acidic solution; contains photosensitivity inhibitors and RS-Suppression agents |
| 02/08/1994 | US5285462 Laser beam emitting device |
| 02/08/1994 | US5285438 Motionless parallel readout head for an optical disk recorded with arrayed one-dimensional holograms |
| 02/08/1994 | US5285435 Controlling positioning of recording/reproducing head by combining a position differentiation and a drive current integration |
| 02/08/1994 | US5285434 Objective lens driving apparatus for optical pickup |
| 02/08/1994 | US5285433 Apparatus with position detecting means for recording and/or reproducing data on and/or from optical card |
| 02/08/1994 | US5285432 Track jump control circuit |
| 02/08/1994 | US5285431 Information storage device with head position detection outside a user utilizable region and an optical disk drive device having target velocity-controlled head actuation |
| 02/08/1994 | US5285308 Spatial light modulators for incoherent/coherent multiplexed holographic recording and readout |
| 02/08/1994 | US5285274 Optical waveguide recording medium and apparatus for playing the same |
| 02/08/1994 | US5285062 Laser/detector hybrid with mirror source and diffracted return beam |
| 02/08/1994 | US5284943 Containing Si, Ge or Sn |
| 02/08/1994 | US5284884 Antistatic resin-forming composition and protective layer of optical recording medium |