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| 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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| 03/09/1976 | US3943302 Electron beam recording in thick materials | | 03/09/1976 | US3942867 Optical memory apparatus | | 03/02/1976 | US3941945 Signal playback system transducer with optical resonance cavity | | 03/02/1976 | US3941927 Optical fiber deflection device | | 02/24/1976 | US3940271 Color photographic light-sensitive material | | 02/17/1976 | US3939302 Method and apparatus for recording and/or reproducing a video signal on a photographic record disc | | 02/10/1976 | US3938191 Rotary data base with air bearing | | 02/10/1976 | US3938164 Device for thermally recording a cathode-ray tube image | | 02/03/1976 | US3936140 Arrangement for sequential data storage | | 01/20/1976 | US3934080 Apparatus for reading a disk-shaped record carrier to be played on a turntable | | 01/13/1976 | US3932701 Self-compensating focus system for a reflective video disc | | 01/13/1976 | US3932700 Focus tracking registration for optical reproducing systems | | 01/06/1976 | US3931460 Video disc with multiturn undulating storage track | | 01/06/1976 | US3931459 Video disc | | 01/06/1976 | US3931457 Information carrier having addressed information tracks |
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