| 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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| 09/07/1994 | CN1091761A Thermochromic infrared dyes |
| 09/06/1994 | USRE34719 Optical recording apparatus for forming grooves and pits in an optically recordable disc |
| 09/06/1994 | US5345436 Recording medium of flat surface with resin filled ring grove |
| 09/06/1994 | US5345435 Optical disc and method for recording on optical disc |
| 09/06/1994 | US5345434 Method and apparatus for correcting edge interval of record signal in an optical record/read-out apparatus |
| 09/06/1994 | US5345433 Optical disc recording apparatus and optical disc reproducing apparatus |
| 09/06/1994 | US5345432 Optical head |
| 09/06/1994 | US5345072 Focus detection device for reading information from an optical recording medium |
| 09/06/1994 | US5344683 Preformed pits along a track center |
| 09/06/1994 | US5344682 Optical recording medium |
| 09/06/1994 | US5344304 Mold for molding of substrate for information recording medium |
| 09/01/1994 | WO1994019800A1 Optical disc apparatus |
| 09/01/1994 | WO1994019797A1 Multiple beam optical memory system with solid-state lasers _____ |
| 09/01/1994 | WO1994019796A1 Multiple beam optical memory system |
| 09/01/1994 | WO1994019166A2 Changing device for manufacturiing information carriers by injection moulding |
| 09/01/1994 | DE4313478C1 Selectively variable optical data store and method for its production |
| 08/31/1994 | EP0613137A2 Apparatus for recording defective-position indicating signal on disk medium |
| 08/31/1994 | EP0613136A2 Data recording and reproducing method |
| 08/31/1994 | EP0613135A2 Optical disc system |
| 08/31/1994 | EP0613129A1 High stability gold based alloy reflectors for use in a writable compact disk |
| 08/31/1994 | EP0613128A1 Optical information carrier |
| 08/31/1994 | EP0613127A1 Double-sided optical media for a disk storage drive |
| 08/31/1994 | EP0613126A1 Optical information recording medium and method of reading the same information |
| 08/31/1994 | EP0613125A2 Optical pickup device |
| 08/31/1994 | EP0613124A2 Shock-resistant, electrostatically actuated pick-up for optical recording and playback |
| 08/31/1994 | EP0613123A2 Device for recording and/or reading information by means of a radiation beam, plate-shaped element suitable for use in the device, and disc player comprising the device |
| 08/31/1994 | EP0613122A2 Optical card information recording/reproducing apparatus |
| 08/31/1994 | EP0612459A1 Video multiplexing system |
| 08/31/1994 | EP0612458A1 Data formats on optical video tape |
| 08/31/1994 | EP0612457A1 Bidirectional sinusoidal scanning system. |
| 08/31/1994 | EP0515422B1 Optical scanning device |
| 08/31/1994 | EP0446284B1 Dithering optical data logger |
| 08/31/1994 | CN1091525A Beam-shaping optical element and radiation source unit and scanning unit including said element |
| 08/30/1994 | US5343460 Information processing device and information processing method |
| 08/30/1994 | US5343459 Varying a scanning beam as a function of bearing temperature of an optical lens actuator |
| 08/30/1994 | US5343458 Method of storing digital video, audio and control information on an an optical storage medium |
| 08/30/1994 | US5343455 Digital signal overlapped or joined recording method and apparatus |
| 08/30/1994 | US5343454 Tracking control apparatus for correcting tracking error signal according to approximate equation of a function of track address |
| 08/30/1994 | US5343453 Method for accessing desired track on disk with plurality of recording zones with head, and apparatus therefore |
| 08/30/1994 | US5343452 Data recording/reproducing apparatus of simultaneously performing both reproducing and recording from and in a single recording medium |
| 08/30/1994 | US5343447 Self-cooling optomagnetic disk device with locking internal mechanism |
| 08/30/1994 | US5343332 Apparatus for adjusting optical axis including a beam shaping prism |
| 08/30/1994 | US5342974 Reacting 1,4,5,8-tetrachloroanthraquione with monohalogenated aniline in presence of carboxylic acid salt, benzyl alcohol and copper catalyst |
| 08/30/1994 | US5342714 Improving recording density |
| 08/30/1994 | US5342682 Method of molding optical recording drums |
| 08/30/1994 | US5342669 Optical information recording medium |
| 08/30/1994 | CA1331807C Optical information recording method and medium |
| 08/25/1994 | DE4305141A1 Device for generating sounds and/or images |
| 08/24/1994 | EP0612071A2 Information reproducing method |
| 08/24/1994 | EP0612069A2 Magneto-optical disc |
| 08/24/1994 | EP0612068A2 Optical head device and birefringent diffraction grating polarizer and polarizing hologram element used therein |
| 08/24/1994 | EP0612067A2 Optical disc recording apparatus |
| 08/24/1994 | EP0612065A1 Recordable optical element having a leuco dye |
| 08/24/1994 | EP0612064A2 An optical pickup apparatus |
| 08/24/1994 | EP0612063A1 Focus balance automatic adjusting device and method |
| 08/24/1994 | EP0612062A1 Patterning process, electro-deposition original plate used therefor, process for producing optical recording medium, and process for producing color filter |
| 08/24/1994 | EP0611472A1 Optical data storage disc. |
| 08/24/1994 | EP0404942B1 Optical disk and movement control of its optical spot |
| 08/24/1994 | EP0232134B1 Optical disc and disc drive apparatus for writing/reading data into/from the disc |
| 08/24/1994 | CN1091223A Data destruction preventing method, recording apparatus provided with data destruction preventing capability, and disc recorded with guard band |
| 08/24/1994 | CN1091220A A disk recording system and a method of controlling the rotation of a turntable in such a disk recording system |
| 08/23/1994 | US5341362 Optical memory device having guide tracks shaped for increasing the quality of information signals |
| 08/23/1994 | US5341360 Method and apparatus for calibrating laser write power by averaging upper and lower knees of a calibration profile |
| 08/23/1994 | US5341358 Optical recording medium and optical recording method using the same |
| 08/23/1994 | US5341356 Method and device for recording information volumes in a track of a record carrier, and a device for reading the record carrier |
| 08/23/1994 | US5341355 Multibeam optical pickup and servo method thereof |
| 08/23/1994 | US5341354 Apparatus for recording/reproducing optical information on/from optical card |
| 08/23/1994 | US5341353 Actuator position detector, actuator position controller and track search controller |
| 08/23/1994 | US5341246 Apparatus for adjusting an optical axis including plates on opposite sides of a beam shaping prism |
| 08/23/1994 | US5341053 Linear motor with permanent magnets |
| 08/23/1994 | US5340698 Optical disk |
| 08/23/1994 | US5340631 Comprising cyanine dyes and cyclodextrins |
| 08/23/1994 | US5340303 Faster cycling sprue for centerhole - tearout optical disk injection molds |
| 08/23/1994 | CA2019936C Semiconductor laser driving circuit |
| 08/23/1994 | CA2001143C Optical pickup device having multiple diffraction regions |
| 08/19/1994 | CA2115724A1 Optical information carrier |
| 08/18/1994 | DE4404635A1 Floating optical scanning head, which is integrally formed with a light source and a photodetector, and optical disc (disk) device having such a scanning head |
| 08/17/1994 | EP0611145A1 Optical waveguide |
| 08/17/1994 | EP0610813A1 Material of a cyclo-olefin copolymer and process for its preparation |
| 08/16/1994 | US5339319 Rotary type storage apparatus and control method thereof |
| 08/16/1994 | US5339306 Detecting interferential diffraction of a reflected beam from a polymer liquid crystal recording medium |
| 08/16/1994 | US5339305 Disk-based optical correlator and method |
| 08/16/1994 | US5339304 Optical disc having two-step pit structure and pickup apparatus |
| 08/16/1994 | US5339303 Apparatus for reproducing information from optical disk on which information in recorded by mark length recording |
| 08/16/1994 | US5339302 RF signal-compensated system for reading an optical disc player with an absolute time detector |
| 08/16/1994 | US5339301 Optically readable record carrier for recording information, method and apparatus for manufacturing such, apparatus for recording and reading information on a such a record carrier |
| 08/16/1994 | US5339300 Optical data recording apparatus and an optical data recording/reproducing method performing servo control with both a recording light beam and a reproducing light beam |
| 08/16/1994 | US5339299 Optical disk drive apparatus for searching a target track |
| 08/16/1994 | US5339298 Over-write capable magnetooptical recording method with widened power margin, and magnetooptical recording apparatus used in this method |
| 08/16/1994 | US5339177 Incoherent/coherent source array for multiplexed holographic recording and readout |
| 08/16/1994 | US5339167 Reproduction speed controller for image signal reproducing apparatus |
| 08/16/1994 | US5338848 For optical recording media used with lasers |
| 08/16/1994 | US5338646 Optical memory device having an improved light reflection or optical memory layer |
| 08/16/1994 | US5338178 Nickel electro-plating layer; less defects |
| 08/16/1994 | US5337865 Viscoelastic substance and objective lens driving apparatus with the same |
| 08/13/1994 | CA2115194A1 Material of a cycloolefin copolymer and a process for its preparation |
| 08/11/1994 | DE4303172A1 CD programming system (CPS) |
| 08/10/1994 | EP0610125A1 Master disks for producing dies, particularly for optical disks, and their method of manufacture |
| 08/10/1994 | EP0610055A2 Compound objective lens having two focal points and apparatus using the lens |
| 08/10/1994 | EP0609882A1 Automatic bias adjustment for focus servo circuit |