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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07/24/1984 | US4461552 Film sound track recording and playback system |
07/24/1984 | CA1171316A1 Thermo-optic information writing process and information support for implementing this process |
07/24/1984 | CA1171276A1 Information recording material |
07/19/1984 | WO1984002795A1 Recording medium for optical data storage |
07/19/1984 | WO1984002794A1 Recording medium for optical data storage |
07/18/1984 | EP0113426A1 Method and apparatus for analyzing the information transfer characteristics of a recording medium |
07/18/1984 | EP0113425A1 Method of and apparatus for establishing the characteristics of a prerecorded two-channel audio program |
07/17/1984 | US4460990 Apparatus for reading an optical record carrier |
07/17/1984 | US4460989 Apparatus for improving focus during playback of an optical data record |
07/17/1984 | US4460988 Data accessing system for optical disk mass memory |
07/17/1984 | US4460977 Optical memory playback apparatus |
07/17/1984 | US4460927 Optical reading device for reading an information carrier with motion effect facilities |
07/17/1984 | US4460665 Multilayer, thin films, cyanine dyes |
07/17/1984 | US4460636 Optical information record member |
07/17/1984 | US4460252 Electrically controlled optical deflector |
07/17/1984 | CA1170873A1 Laminate optical disc and fabrication method |
07/11/1984 | EP0112883A1 Focus and tracking control apparatus for optical disc writing/reading |
07/10/1984 | US4459690 Multi-beam optical record and playback apparatus having an improved beam splitter |
07/10/1984 | US4458980 Optical reproducing head |
07/05/1984 | WO1984002586A1 Reflective optical data storage and laser recording medium |
07/04/1984 | EP0112595A1 Electrodynamic device for translating an objective |
07/04/1984 | EP0112402A1 Light waveguide with a submicron aperture, method for manufacturing the waveguide and application of the waveguide in an optical memory |
07/03/1984 | US4458345 Process for optical information storage |
07/03/1984 | US4458144 Apparatus for reading information stored in a track pattern on a radiation reflecting record |
07/03/1984 | US4458004 Optical information recording medium |
07/03/1984 | US4457794 Depositing film on pregrooved substrate |
06/27/1984 | EP0111988A1 Magneto-optic memory device |
06/27/1984 | EP0111557A1 Laser video disc storage and retrieval system |
06/26/1984 | US4456981 Modulation system for optical recording |
06/26/1984 | US4456914 Method and apparatus for storing information on a storage medium |
06/26/1984 | US4456659 Ultraviolet curable films of an acylic-modified polybutadiene, a hydroxy acrylate and an acrylic diluent |
06/26/1984 | US4456375 Optical disc measurement by refraction |
06/21/1984 | WO1984002421A1 Coated media for optical recording, with "soft/hard" overcoat |
06/21/1984 | WO1984002420A1 Image forming and data storage |
06/21/1984 | WO1984002419A1 Improvements relating to data storage and recording |
06/21/1984 | WO1984002395A1 Coated media for optical recording with acrylic overcoat |
06/21/1984 | WO1984002289A1 Coated media for optical recording and associated coating techniques |
06/21/1984 | WO1984002288A1 Coated media for optical recording, associated acrylic coatings and related application methods |
06/20/1984 | EP0111077A1 Device for heat-bonding utilizing temperature-controlled pressure |
06/20/1984 | EP0111010A1 Optical disc reproducer |
06/20/1984 | EP0111006A1 Optical head control signal generator |
06/19/1984 | US4455632 Apparatus for optically reading a record carrier with two types of information areas |
06/19/1984 | US4455085 Method and apparatus for detecting a focussing condition of an objective lens |
06/19/1984 | CA1169555A1 Device for processing optical information and method of manufacturing a coma correction plate as used in such a device |
06/13/1984 | EP0110730A2 Improvements relating to data storage and recording |
06/13/1984 | EP0110729A2 Image forming and data storage |
06/13/1984 | EP0110477A1 Clock-controlled filtering arrangement |
06/13/1984 | EP0110367A2 Coded data on a record carrier and method for encoding same |
06/12/1984 | US4454415 Tracking mirror assembly and control system for an optical data storage disc |
06/12/1984 | CA1169148A1 Tracking device |
06/07/1984 | WO1984002221A1 Data storage devices |
06/07/1984 | WO1984002220A1 Coated media for optical recording and method of fabricating |
06/07/1984 | WO1984002201A1 Medium for recording visual images and laser written data |
06/05/1984 | US4453246 Retaining rings for optical disc assemblies |
06/05/1984 | US4453241 Optical scanning unit for reading information from an optical recording |
06/05/1984 | US4453239 Method and apparatus for controlling the focusing and tracking of a light beam using a main and secondary light beam in association with multiple detectors |
06/05/1984 | US4452819 Disc coating method |
06/05/1984 | US4452748 Process for obtaining a copy disk from an original recording carried by a matrix |
06/05/1984 | CA1168745A1 Stigmatic optical device |
05/30/1984 | EP0109547A2 Method of applying a coating to heat sensitive materials |
05/29/1984 | US4451915 Optical storage system employing a multi-layer optical medium |
05/29/1984 | US4451914 Optical storage system employing a multi-layer optical medium |
05/29/1984 | US4451913 Video disc read back scanner |
05/29/1984 | US4451836 Optical disc write/read apparatus |
05/29/1984 | EP0098296A4 Optical recording media. |
05/29/1984 | CA1168359A1 Optical information disk |
05/29/1984 | CA1168358A1 Optical disk cassette |
05/23/1984 | EP0109245A2 Radiation sensitive record disc with improved internal structure |
05/23/1984 | EP0109194A1 Optical information reproducing apparatus |
05/23/1984 | EP0109130A2 Apparatus for controlling the write beam on an optical data recording system |
05/23/1984 | EP0108960A2 Improved fluid bearing for axially movable head |
05/22/1984 | US4450553 Multilayer information disc |
05/22/1984 | US4450547 Focal position detecting optical apparatus |
05/22/1984 | US4450452 Data recording medium |
05/22/1984 | US4449916 Device for manufacturing information recording mediums |
05/16/1984 | EP0108457A1 Method for the production of an optical recording element |
05/16/1984 | EP0108456A1 Optical recording disc |
05/16/1984 | EP0108258A1 A master disk for optical disk manufacture, and a method and the system for manufacturing the same |
05/15/1984 | US4449215 Apparatus for varying track spacing in multi-track optical record systems |
05/15/1984 | US4449213 Optical reading apparatus |
05/15/1984 | US4449212 Multi-beam optical record and playback apparatus |
05/15/1984 | US4449204 Information processing apparatus using a semiconductor laser diode |
05/15/1984 | US4449139 Optical disc unit, fabrication method and cooperating write and/or read apparatus |
05/15/1984 | US4449138 Information recording medium |
05/15/1984 | US4448827 Optically readable information disc comprising an envelope of cross-linked synthetic resin |
05/10/1984 | WO1984001849A1 Fine and coarse servo system for access and tracking on an optical disk |
05/10/1984 | WO1984001848A1 Optical disc |
05/09/1984 | EP0107913A1 Radiation-sensitive carrier body utilized as stamper structure |
05/09/1984 | EP0107754A1 Apparatus for magneto-optical information storage |
05/08/1984 | US4447899 Optical disc method, media and apparatus for writing and/or reading information |
05/08/1984 | US4447722 Optical information reading device |
05/08/1984 | US4447138 Objective system for video disc |
05/02/1984 | EP0107461A1 Optical signal reading device |
05/02/1984 | EP0107379A1 Data storage medium |
05/01/1984 | US4446549 Alkanedioldiacrylate lacquer information track |
05/01/1984 | US4446548 Apparatus for the point-by-point scanning of an object |
05/01/1984 | US4446546 Focus initialization system for optical recording |
05/01/1984 | US4446545 Apparatus for reading a disk-shaped record carrier |
05/01/1984 | US4446487 Method of and apparatus for reading out image information |
05/01/1984 | US4446223 Recording and information record elements comprising oxoindolizine and oxoindolizinium dyes |