| 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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| 10/16/1984 | US4477821 For use with a recording means |
| 10/16/1984 | US4477819 Marking aluminum and germanium layers with laser beam |
| 10/16/1984 | US4477555 Optical information recording medium |
| 10/16/1984 | US4477328 Oligomeric acrylate or methacrylate coating on synthetic resin substrate |
| 10/16/1984 | CA1176370A1 Method for recording signals on bands by means of laser beams and apparatus for carrying out the method |
| 10/16/1984 | CA1176320A1 Signal wave control circuit |
| 10/11/1984 | WO1984003988A1 Disc-shaped recording medium |
| 10/11/1984 | WO1984003987A1 Apparatus for recording and reproducing optical data |
| 10/11/1984 | WO1984003986A1 Optical data storage |
| 10/11/1984 | WO1984003985A1 Center supported actuator carriage assembly |
| 10/10/1984 | EP0121426A2 Optical recording medium and method of optical recording and erasing using same medium |
| 10/10/1984 | EP0121368A2 Optical information recording medium |
| 10/10/1984 | EP0046323B1 Method of writing and reading sector-organized information into and out of a record carrier body and device for performing the method |
| 10/09/1984 | US4476555 Tracking servo apparatus for an optical information reproducing system |
| 10/09/1984 | US4476214 Optical information disk comprising tellurium, selenium and antimony |
| 10/09/1984 | CA1175706A1 Light induced capacitance changes in donor polymers (or small molecules) films and its use for information storage in video disks and the like |
| 10/03/1984 | EP0120539A1 Optical recording disc |
| 10/03/1984 | EP0120514A1 Optically readable information disc comprising an envelope of cross-linked synthetic resin |
| 10/03/1984 | EP0120389A2 Method of driving a semiconductor laser |
| 10/02/1984 | US4475183 Optical disk retrieval methods, media and systems employing digital data of high fractional bandwidth |
| 10/02/1984 | US4475182 Focus servo control system for automatically adjusting a relative distance between an objective lens unit and a recording surface of an optical recording medium |
| 10/02/1984 | US4475179 Optical disc write/read methods and apparatus with improved focus and tracking control |
| 10/02/1984 | US4475132 Interactive video disc systems |
| 10/02/1984 | CA1175227A1 One step optical imaging method |
| 09/26/1984 | EP0119829A2 Improvements in apparatus for reproducing motion picture film photographic sound-tracks |
| 09/26/1984 | EP0119809A1 Cover assembly for optical recording medium |
| 09/26/1984 | EP0119740A2 Optical recording medium of high sensitivity |
| 09/26/1984 | EP0119657A1 Method for the storage on and the reproduction from an optically readable record carrier, record carrier for use in the method and apparatus for use in the method |
| 09/26/1984 | EP0119656A1 Optical recording disc |
| 09/26/1984 | EP0119488A1 Position detecting apparatus |
| 09/25/1984 | US4473829 Method of recording a digital information signal on a record carrier having a radiation-sensitive information layer, apparatus for carrying out the method, and optical record carrier provided with such a digital information signal |
| 09/25/1984 | US4473633 Transparent support with silicon dioxide and indium layer |
| 09/25/1984 | US4473274 Objective lens assembly for optical disc player |
| 09/25/1984 | CA1174882A1 Plane grating polarizing beamsplitter |
| 09/19/1984 | EP0119101A2 Improvements in stereophonic motion picture photographic sound-tracks and apparatus for recording and playing back photographic sound tracks |
| 09/19/1984 | EP0118936A1 Method of encoding a recording signal, record carrier provided with a recording signal encoded in accordance with the method, apparatus for carrying out the method, and apparatus for reproducing a signal encoded in accordance with the method |
| 09/19/1984 | EP0118930A1 Method of manufacturing metal matrices |
| 09/19/1984 | EP0118881A2 Binder-mixtures for optical recording layers and elements |
| 09/19/1984 | EP0118626A1 Apparatus for recording and/or reading information on an optically readable disc |
| 09/18/1984 | US4472024 Apparatus for driving objective lens |
| 09/18/1984 | CA1174492A1 Optical playback apparatus, focusing elements, and focusing system for producing a prescribed energy distribution along an axial focal zone |
| 09/13/1984 | WO1984003583A1 System for sensing the rotational position of a rotating disk having coarse seek tracks |
| 09/13/1984 | WO1984003582A1 Position control structure for flexible, edge-constrained optical discs |
| 09/13/1984 | WO1984003581A1 Apparatus for reproducing data signal |
| 09/13/1984 | WO1984003580A1 Data transfer system using digital disc |
| 09/12/1984 | EP0118146A1 Optically readable storage disc |
| 09/12/1984 | EP0118143A1 Method and device for manufacturing an information carrier of a synthetic material having a laminated structure |
| 09/12/1984 | EP0117910A1 Apparatus for signal evaluation by accumulation at one rate and releasing and testing at a slower rate |
| 09/12/1984 | EP0117909A1 Method of and apparatus for evaluating the audio characteristics under the control of a video picture frame number |
| 09/12/1984 | EP0117908A1 Method of and apparatus for analyzing the signal transfer characteristics of a signal processing unit |
| 09/11/1984 | US4471477 Apparatus for optically scanning a disc-shaped record carrier |
| 09/11/1984 | US4470940 Mold release agents |
| 09/05/1984 | EP0117715A1 Optical disc players |
| 09/05/1984 | EP0117576A1 Optically readable disc |
| 09/04/1984 | US4470137 Apparatus for rotatably supporting a recording member |
| 09/04/1984 | US4470053 Protuberant optical recording medium |
| 08/30/1984 | WO1984003388A1 Information storage medium and method of recording and retrieving information thereon |
| 08/30/1984 | WO1984003387A1 Apparatus for controlling tracking of recorded disc reproduction device |
| 08/29/1984 | EP0116936A2 Method for recording data and camera for creating a data record on a photosensitive medium |
| 08/29/1984 | EP0116753A1 Improvements in or relating to apparatus to focus light on a surface |
| 08/28/1984 | US4468709 Dual-loop jitter correction circuit for correcting the time base error of an information signal |
| 08/22/1984 | EP0116467A2 Optical disc players |
| 08/22/1984 | EP0116381A1 Recording element having a pyrypium or thiopyryliumsquarylium dye layer and new pyrylium or thiopyryliumsquarylium compounds |
| 08/22/1984 | EP0116204A1 Servo system for an optical memory |
| 08/22/1984 | EP0116135A1 Method of evaluating and apparatus for analyzing recording characteristics of a recording medium with a prescribed analog electrical signal |
| 08/21/1984 | US4467467 Video recorder-playback machine |
| 08/21/1984 | US4467463 Optical device for controlling a light beam |
| 08/21/1984 | US4467462 Signal detection system for use in an optically reproducing apparatus |
| 08/21/1984 | US4467383 Magnetooptic memory medium |
| 08/21/1984 | US4467376 Process for the recording on, and reading of, store tapes |
| 08/16/1984 | WO1984003169A1 Optical storage and switching devices using organic charge transfer salts |
| 08/15/1984 | EP0115666A2 Optical focus position control in optical disc apparatus |
| 08/14/1984 | US4466088 Galvo position sensor for track selection in optical data disk system |
| 08/14/1984 | US4466087 Optical memory system for a reading/writing, verifying and tracking module |
| 08/14/1984 | US4465767 Optical information recording medium |
| 08/14/1984 | CA1172749A1 Digital formatting system |
| 08/08/1984 | EP0115458A2 Optical focussing device for read-out of a record carrier in procession |
| 08/08/1984 | EP0115067A2 Polymers with slight water absorption |
| 08/08/1984 | EP0115066A2 Moulding Material based on acrylic resins with slight water absorption |
| 08/08/1984 | EP0114839A1 A high performance multi-processor system. |
| 08/08/1984 | EP0039725B1 Fluorescent soundtrack readout system |
| 08/07/1984 | US4464757 Method and device for writing and reading sector-organized information into and from a record carrier body |
| 08/07/1984 | US4464741 Optical focusing-error detection device |
| 08/07/1984 | US4464714 System for transmitting digital information, coding arrangement for use in that system, decoding arrangement for use in that system and record carrier for use in that system |
| 08/07/1984 | US4464567 Photoelectric information and focus detector |
| 08/07/1984 | US4464050 Apparatus for detecting optically defects |
| 08/01/1984 | EP0114509A1 Record disc reproducing apparatus |
| 08/01/1984 | EP0114508A1 Record disc reproducing apparatus |
| 07/31/1984 | US4463389 System for recording and playing back continuous-play and stop-motion signals |
| 07/31/1984 | US4463089 Colloid matrix, metallic partille dispersion, and second metal protective coating |
| 07/31/1984 | US4463083 Protective layers having high mechanical properties without reducing sensitivity |
| 07/31/1984 | US4462660 Modulating a laser beam |
| 07/31/1984 | CA1171964A1 Stretched-film optical recording disc |
| 07/31/1984 | CA1171959A1 Producing a replicate video disc by a method of photographic contact printing |
| 07/25/1984 | EP0114082A2 Apparatus for recording and/or reading information by means of a radiation beam |
| 07/25/1984 | EP0113759A1 Optical disc write/read employing passive focus maintenance |
| 07/24/1984 | US4462096 Pickup assembly for disc player |
| 07/24/1984 | US4462095 Moving diffraction grating for an information track centering system for optical recording |
| 07/24/1984 | US4462036 Optical disc assemblies for optical disc write/read apparatus |
| 07/24/1984 | US4461807 Recording material |