| 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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| 04/25/1984 | EP0106673A2 Optical and reversible recording and reproducing apparatus |
| 04/25/1984 | EP0106641A1 Polymerizable composition for information carrying systems |
| 04/24/1984 | US4445209 Dithered focusing systems |
| 04/24/1984 | US4445208 Signal detecting system in optical information reading apparatus |
| 04/24/1984 | US4445144 Method for detecting eccentricity in a video disc and in a video disc player |
| 04/24/1984 | CA1166060A1 Information recording element including a dye layer containing methyl vinyl ether-maleic anhydride copolymeric binder |
| 04/18/1984 | EP0105374A1 Optical recording/reproduction disc |
| 04/17/1984 | US4443873 Optical system for optical disc reader |
| 04/17/1984 | US4443870 Optical memory system providing track following |
| 04/17/1984 | US4443869 In an information playback system |
| 04/17/1984 | US4443806 Disk, radiation sensitive, lasers |
| 04/17/1984 | US4443721 Electrodynamic device for translating an objective |
| 04/17/1984 | CA1165873A1 Pickup assembly for disc player |
| 04/17/1984 | CA1165872A1 Method of writing and reading sector-organized information into and out of a record carrier body and device for performing the method |
| 04/17/1984 | CA1165871A1 Optically inscribable record carrier |
| 04/17/1984 | CA1165870A1 Device for locating a desired information track |
| 04/11/1984 | EP0105130A2 Writing beam focus monitor |
| 04/10/1984 | US4442516 Drive mechanism for disc player with bearing supported slider |
| 04/10/1984 | CA1165438A1 Optical device for the recording and reading of data media and optical memory system incorporating such a device |
| 04/04/1984 | EP0104914A1 Recording and/or reproducing apparatus for discs |
| 04/04/1984 | EP0084534A4 High density recording medium and method for making same. |
| 04/03/1984 | US4441179 Information storage member structure |
| 04/03/1984 | US4441175 Partial beam focus sensing in an optical recording system |
| 04/03/1984 | US4440586 Method of manufacturing a die for duplicating plastics information carriers |
| 04/03/1984 | CA1164651A1 Audio-visual teaching apparatus |
| 03/28/1984 | EP0103935A1 Method and device for balancing circular plate-shaped objects |
| 03/28/1984 | EP0103929A2 Optical unit for guidance and alignment of a radiator beam |
| 03/28/1984 | EP0103892A2 Optical recording medium and method of making same |
| 03/27/1984 | US4439848 Focusing system for video disc player |
| 03/27/1984 | CA1164560A1 Reversible thermo-optical memory structure |
| 03/27/1984 | CA1164558A1 Record carrier with an optically readable information structure |
| 03/21/1984 | EP0103401A2 Recording media |
| 03/14/1984 | EP0102799A1 Optical disk recording and reproducing method and optical disk used in the same |
| 03/14/1984 | EP0102608A2 Expansion circuit for digital signals |
| 03/14/1984 | EP0102607A1 Disc playback apparatus |
| 03/13/1984 | US4437177 Small-sized video or audio pickup device having a beam deflector disposed within a focusing device support |
| 03/13/1984 | CA1163490A1 Composition containing nitrocellulose, red i dye and solvent, for use in making an ablative imaging medium |
| 03/13/1984 | CA1163489A1 Process for making an imaging medium solution by heating a combination including a dye dispersion and a nitrocellulose solution |
| 03/07/1984 | EP0102231A1 Optical disk and method of recording and reproduction for the disk |
| 03/07/1984 | EP0102057A1 Optical disc apparatus |
| 03/06/1984 | US4435801 Information record with a thick overcoat |
| 03/06/1984 | US4435797 In a high density storage system |
| 03/06/1984 | US4435343 Method for manufacturing an information memory disk |
| 03/06/1984 | CA1163367A1 Apparatus for reproducing digitally coded information recorded on an optically readable disc-shaped record carrier |
| 03/06/1984 | CA1163094A1 Interferometer |
| 03/06/1984 | CA1163063A1 Method of and apparatus for manufacturing a disc- shaped plastics record carrier |
| 02/28/1984 | US4434477 Mechanically addressed optical memory |
| 02/28/1984 | US4434429 Information recording member and method of fabricating the same |
| 02/22/1984 | EP0100995A2 Optical disk |
| 02/21/1984 | US4433423 High quality delta modulator |
| 02/21/1984 | US4433403 Optical disc recording and retrieval system |
| 02/21/1984 | US4433340 Melt deforming tellurium and carbon mixture layer in response to intensity of energy beam |
| 02/15/1984 | EP0100549A2 Method for formatting optically encoded digital data on a substrate and the data record carrier formed thereby |
| 02/14/1984 | US4432085 Dual input telescope for multi-beam optical record and playback apparatus |
| 02/14/1984 | US4432083 Optical memory system having track following |
| 02/14/1984 | US4432082 Optical memory system having a long seek capability |
| 02/14/1984 | US4432002 Data recording medium and manufacturing method therefor |
| 02/14/1984 | US4431275 Optical recording and read-out lens system for optical recording type disks |
| 02/07/1984 | US4430659 Protuberant optical recording medium |
| 02/07/1984 | US4430401 Method for producing a recording disc stamper |
| 02/07/1984 | US4430363 Process of making information carrying systems |
| 02/07/1984 | CA1161953A1 Grooved label for video disc |
| 02/01/1984 | EP0099651A2 Optical data storage |
| 02/01/1984 | EP0099576A2 Optical information processor |
| 01/31/1984 | US4429378 Optical pickup device for use in a video and/or audio disc player |
| 01/31/1984 | US4428647 Multi-beam optical system using lens array |
| 01/31/1984 | CA1161555A1 Apparatus for optically reading a disc-shaped record carrier in particular for rapidly locating a desired programme section |
| 01/31/1984 | CA1161554A1 Case with an information carrier consisting of a tape one side of which has a structure carrying optically readable information as well as an apparatus for writing, reading or erasing such information |
| 01/25/1984 | EP0099208A2 An information recording material |
| 01/25/1984 | EP0099123A2 Optical recording and reproducing head |
| 01/25/1984 | EP0099085A1 Optical disk |
| 01/24/1984 | US4428075 Methods of preformatting an optical disk |
| 01/24/1984 | US4428069 Apparatus for preformatting an optical disk |
| 01/24/1984 | CA1160875A1 Pivoting mirror device |
| 01/24/1984 | CA1160874A1 Optical focusing device |
| 01/19/1984 | WO1984000243A1 Focus and tracking control apparatus for optical disc writing/reading |
| 01/19/1984 | WO1984000242A1 Optical disc write/read employing passive focus maintenance |
| 01/19/1984 | WO1984000221A1 A high performance multi-processor system |
| 01/18/1984 | EP0098349A2 Frequency detecting circuit for digital information reproducing system |
| 01/18/1984 | EP0098296A1 Optical recording media. |
| 01/17/1984 | US4426696 Optical playback apparatus focusing system for producing a prescribed energy distribution along an axial focal zone |
| 01/17/1984 | US4426694 Beam position detecting device for optical disc apparatus |
| 01/17/1984 | US4426693 Light source intensity control in an optical recording and reproducing apparatus |
| 01/17/1984 | US4426690 Optical reproducing device having focus servo system |
| 01/17/1984 | CA1160751A1 Method of modulation and demodulation of data and apparatus for the same |
| 01/17/1984 | CA1160496A1 Information recording medium including a crystalling film of a se/te alloy |
| 01/11/1984 | EP0098125A1 Recording media for optical information |
| 01/11/1984 | EP0098076A1 Beam access apparatus for optical disc system |
| 01/11/1984 | EP0098046A1 Archival record films for digital data storage using low power write-laser |
| 01/11/1984 | EP0098045A1 Gold archival record films for digital data storage using low power write-laser |
| 01/11/1984 | EP0097929A1 Optical information recording medium for semiconductor laser |
| 01/11/1984 | EP0097774A2 Transducing system |
| 01/10/1984 | US4425637 Optical recording apparatus |
| 01/10/1984 | US4425636 Method and apparatus for reproducing optically an information recorded on a record medium along tracks |
| 01/10/1984 | US4425587 Videodisc playback apparatus |
| 01/10/1984 | US4425583 Video disc player having time base variations eliminated in both audio and video signals |
| 01/10/1984 | US4425570 Reversible recording medium and information record |
| 01/10/1984 | US4425043 Device for detecting the position of an object |
| 01/10/1984 | US4425023 Beam spot scanning device |
| 01/04/1984 | EP0097510A2 Erasable optical recording medium |