| 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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| 06/09/1992 | US5121371 Optical servo system for magnetic disk |
| 06/09/1992 | US5121370 Apparatus and method for accurately scanning a light beam across tracks of a recording medium |
| 06/09/1992 | US5121231 Incoherent/coherent multiplexed holographic recording for photonic interconnections and holographic optical elements |
| 06/09/1992 | US5121219 Spindle servo utilizing a vertical sync mark |
| 06/09/1992 | US5121016 Linear motor |
| 06/09/1992 | US5120136 Optical tape recorder having an acousto-optic device for scanning a radiant energy beam onto a media |
| 06/09/1992 | CA1303219C Information recording method for recording data and directories in a plurality of blocks comprising divided recording areas |
| 06/09/1992 | CA1303218C Device for driving and controlling optical head for use in optical disksystem |
| 06/08/1992 | WO1992013342A1 Recording/reproducing apparatus |
| 06/04/1992 | CA2031337A1 Optical head |
| 06/03/1992 | EP0488684A1 Image reproducing apparatus for musical accompaniment |
| 06/03/1992 | EP0488648A2 Optical information recording/reproducing apparatus |
| 06/03/1992 | EP0488504A1 CD-ROM and CD-ROM reproducing system |
| 06/03/1992 | EP0488451A1 Master disc |
| 06/03/1992 | EP0488407A2 Optical system for converging light beams to form a single beam spot on an optical disc |
| 06/03/1992 | EP0488388A2 Hub for optical disk and optical disk |
| 06/03/1992 | EP0488239A1 Method for manufacturing a stamper |
| 06/03/1992 | EP0488231A1 Sulfur compound-coordinate bonded organic coloring matter, compositions of same, and photorecording media containing same |
| 06/03/1992 | EP0488166A2 Embossing metal mold and manufacturing method thereof |
| 06/03/1992 | EP0488153A1 Optical recording medium |
| 06/03/1992 | EP0488111A2 Optical disk system |
| 06/03/1992 | EP0487848A1 A loading apparatus having a suction-hold mechanism |
| 06/03/1992 | EP0487816A2 Tracking error detecting system for an optical disk player |
| 06/03/1992 | EP0165320B1 Disk-shaped recording medium and apparatus for reproducing the same |
| 06/02/1992 | US5119363 Optical disk having an index mark |
| 06/02/1992 | US5119362 Disc player with a pickup feeding apparatus |
| 06/02/1992 | US5119361 Optical information readout apparatus |
| 06/02/1992 | US5119360 Controlling a laser used with an optical disk apparatus |
| 06/02/1992 | US5119359 Method and apparatus for fabricating an optical disc master and an optical disc |
| 06/02/1992 | US5119356 Information recording and reproducing apparatus including detection of whether an information recording medium has been normally loaded into the apparatus |
| 06/02/1992 | US5119355 Optical information processing apparatus |
| 06/02/1992 | US5119353 Compact disc with additional memory addressable by disc player |
| 06/02/1992 | US5119352 Magneto optic data storage read out apparatus and method |
| 06/02/1992 | US5119291 Modular data storage directories for large-capacity data storage units wherein the index to the records in a sector is located in the next adjacent sector |
| 06/02/1992 | US5118771 Erasable optical disk having an improved optically transparent substrate |
| 06/02/1992 | US5118586 Photo-recording media and photo-recording method |
| 06/02/1992 | US5118549 Metal light reflecting layer; corrosion resistance |
| 06/02/1992 | US5118548 Substrate for information-recording media |
| 06/02/1992 | US5118541 Erasable optical disk media and method of recording/erasing the same |
| 06/02/1992 | CA1302564C Information recording medium |
| 06/02/1992 | CA1302563C Information recording method and apparatus for re- recording information on track positioned at least two tracks ahead when abnormality of tracking servo is detected |
| 06/02/1992 | CA1302562C Optical head |
| 06/02/1992 | CA1302560C Apparatus for reproducing information from a record carrier |
| 05/29/1992 | WO1992009079A1 Optical disc device |
| 05/28/1992 | CA2056321A1 Image reproducing apparatus, image information recording medium, and musical accompaniment playing apparatus |
| 05/27/1992 | EP0487321A2 Optical disk drive |
| 05/27/1992 | EP0487296A2 High density disk apparatus |
| 05/27/1992 | EP0487294A2 Optical disk apparatus |
| 05/27/1992 | EP0487206A1 Apparatus for detecting position of light spot |
| 05/27/1992 | EP0487138A2 Method of manufacturing an optically readable disc, and arrangement for carrying out the method |
| 05/27/1992 | EP0486538A1 Circuit arrangement for automatic gain control. |
| 05/27/1992 | CN1061484A Optical disk apparatus and optical head |
| 05/26/1992 | US5117416 Recording method for multi-layer recording film |
| 05/26/1992 | US5117415 Optical card, a card holder and an apparatus for recording, reproducing and erasing information on and from the optical card |
| 05/26/1992 | US5117413 Coil drive for pivotable mounted optical scanner |
| 05/26/1992 | US5117412 Optical disc with servo pattern providing enhanced reliability of servo clock detection and apparatus for accessing the optical disc |
| 05/26/1992 | US5117411 Lens cleaner for a compact disk player |
| 05/26/1992 | US5117410 Optical disc apparatus with rapid and stable accessing capability |
| 05/26/1992 | US5116674 Electrically conducting metal film on substrate coated with layer of porous metal oxide by anodic oxidation; optical recording media |
| 05/26/1992 | US5116665 Multilayer protective coating for a substrate, process for protecting a substrate by a plasma deposition of such a coating, coatings obtained and applications thereof |
| 05/26/1992 | US5116210 Optical-disk manufacturing apparatus |
| 05/26/1992 | CA1301925C Optical information recording and reproducing apparatus |
| 05/26/1992 | CA1301922C Optical disk drive apparatus having counter disable at seek start-up |
| 05/26/1992 | CA1301921C Wavelength selective optical recording and reproducing device |
| 05/26/1992 | CA1301920C Wavelength selective optical recording and reproducing |
| 05/26/1992 | CA1301505C Wavelength selective optical data storage system |
| 05/22/1992 | WO1992009919A1 Apparatus for recording, storing and electronically accessing images |
| 05/22/1992 | WO1992009661A1 Squarylium and croconylium dyes |
| 05/22/1992 | CA2070280A1 Squarylium and croconylium dyes |
| 05/21/1992 | DE4133772A1 Optical disc esp. CD reading unit - applies DC to drive semiconductor laser and modulates by HF current related to formula length of optical air path |
| 05/20/1992 | EP0486482A2 Optical recording card and method of producing the same |
| 05/20/1992 | EP0486275A2 Objective lens driver |
| 05/20/1992 | EP0486265A2 Polarization detection system |
| 05/20/1992 | EP0486192A2 A semiconductor laser system with a non linear crystal resonator |
| 05/20/1992 | EP0486060A2 Recording/reproducing system using wavelength/depth selective optical storage medium |
| 05/20/1992 | EP0485994A2 Optical disc access control apparatus |
| 05/20/1992 | EP0485404A1 Optical scanning device. |
| 05/20/1992 | EP0485403A1 Mount for an optical element. |
| 05/20/1992 | EP0147065B1 Optical recording medium and recording and reproducing apparatus therefor |
| 05/19/1992 | US5115424 Optical storage medium with provision for limitation of thermal conduction |
| 05/19/1992 | US5115423 Optomagnetic recording/reproducing apparatus |
| 05/19/1992 | US5115422 Information reproducing apparatus for detecting a reproduced area on a disc |
| 05/19/1992 | US5115421 Optical recording/reproducing apparatus |
| 05/19/1992 | US5115420 Utilizing wasted laser light in optical systems |
| 05/19/1992 | US5115419 Disc playback device capable of continuously playing back a plurality of discs |
| 05/19/1992 | US5115363 Head/gimbal assembly having low stiffness cross band flexure |
| 05/19/1992 | US5115154 Frequency and/or phase characteristic control circuit having controlled current multiplying ratio |
| 05/19/1992 | US5115147 Driver for light emitting device for providing a stable beam output |
| 05/19/1992 | US5115041 Substrate for optical recording media and molding composition therefor |
| 05/19/1992 | US5114829 Multilayer optical recording disk exposure with laser, reflection |
| 05/19/1992 | US5114828 Methyl methacrylate-methyl acrylate copolymer primer layer |
| 05/19/1992 | US5114813 Method of forming stable images in electron beam writable glass compositions |
| 05/19/1992 | US5114531 Method of producing masks for rom type optical recording cards and method of inspecting masks |
| 05/19/1992 | CA1301325C Method for reading data pages on a data surface |
| 05/19/1992 | CA1301324C Optical information recording and reproducing apparatus |
| 05/19/1992 | CA1301321C Optical information recording and reproducing apparatus |
| 05/19/1992 | CA1301320C Write-once data writing system for optical recording medium |
| 05/19/1992 | CA1301319C Optical recording medium reading device |
| 05/14/1992 | WO1992007706A1 A device in injection moulding machines |
| 05/13/1992 | EP0485366A2 Process for preparing optical data cards |