| 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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| 03/02/1982 | CA1119296A1 Information signal recording medium of the rotary type |
| 02/24/1982 | EP0046413A2 Recording medium |
| 02/24/1982 | EP0046412A1 Recording member |
| 02/24/1982 | EP0046323A1 Method of writing and reading sector-organized information into and out of a record carrier body and device for performing the method |
| 02/23/1982 | US4317131 System and method for reproducing pictures and related audio information |
| 02/23/1982 | US4317123 Thermal recording material |
| 02/23/1982 | US4316657 Apparatus for electrically detecting focal point of cameras or the like optical devices |
| 02/23/1982 | CA1118890A1 Motion blur compensation for moving media optical data recording system |
| 02/17/1982 | EP0046104A1 Thermo-optical process for information recording, record carrier for carrying out this process and apparatus to read this record carrier |
| 02/17/1982 | EP0046000A1 Video disc support assembly |
| 02/17/1982 | EP0045806A1 Real-time optical disc and method for record and readout. |
| 02/16/1982 | US4316279 Optical recording in thin photoresist |
| 02/16/1982 | US4316278 System for reading or recording indicia on a flexible disc |
| 02/16/1982 | US4315878 Low quality core |
| 02/16/1982 | EP0039725A4 Fluorescent soundtrack readout system. |
| 02/10/1982 | EP0045538A1 Optical apparatus for writing and/or reading recording tracks by means of a radiation beam |
| 02/10/1982 | EP0045537A1 Apparatus for writing and/or reading information on a rotary information disc with the aid of a radiation beam |
| 02/09/1982 | US4315283 High density recording system using side-by-side information and servo tracks |
| 02/09/1982 | US4315269 Thick protective overcoat layer for optical video disc |
| 02/03/1982 | EP0045183A2 Recording material |
| 02/03/1982 | EP0045117A2 Apparatus and method for writing a signal information track on a disc |
| 02/03/1982 | EP0044907A2 Information optically readable storing discs and method for their manufacuture |
| 02/03/1982 | EP0044840A1 Information carrying discs. |
| 02/02/1982 | US4314262 Optical data recording medium |
| 02/02/1982 | US4314260 Laser pyrographic reflective recording layer in a carbon containing absorptive matrix |
| 02/02/1982 | US4314256 Radiation-sensitive material and method for recording information on radiation-sensitive material |
| 01/27/1982 | EP0044603A2 Apparatus and method for writing a signal information track on a disc |
| 01/27/1982 | EP0044457A2 Process for two-photon holographic recording |
| 01/27/1982 | EP0044345A1 Process for making video and similar discs. |
| 01/27/1982 | EP0044327A1 Process and equipment for recording and displaying laser interference images |
| 01/26/1982 | US4313191 Recording medium having a pilot signal with an aligned phase angle in adjacent tracks |
| 01/26/1982 | US4313190 Method for making a composite video disc |
| 01/26/1982 | US4313188 Method of recording an ablative optical recording medium |
| 01/26/1982 | US4312938 Layer of reflective, non-filamentary silver particles over silver filaments; photography |
| 01/26/1982 | US4312823 Method of manufacturing a plastic record carrier having a stratified structure |
| 01/26/1982 | US4312652 Separation system |
| 01/26/1982 | EP0036890A4 Apparatus and method for detecting crossmodulation distortion. |
| 01/26/1982 | CA1116898A1 Optical storage medium |
| 01/20/1982 | EP0044194A1 An optical servo-positioning system |
| 01/20/1982 | EP0044122A2 Method and apparatus for writing a signal information track on a disc |
| 01/20/1982 | EP0044121A2 Method of writing signal information on a disc |
| 01/20/1982 | EP0044074A1 Focus detector |
| 01/20/1982 | EP0044073A1 System for recording digital information in a pulse-length modulation format |
| 01/20/1982 | EP0044072A1 Apparatus and method for controlling focus in a recording system |
| 01/19/1982 | CA1116752A1 Photsensitive material for optical digital recording and high density information storage |
| 01/19/1982 | CA1116748A1 High density video recording disk |
| 01/12/1982 | US4310919 Optical video disc structure |
| 01/12/1982 | US4310916 Optical record carrier and apparatus for reading it |
| 01/12/1982 | US4310912 Servo system for recording and/or reproducing apparatus using a rotatable recording carrier |
| 01/12/1982 | US4310911 Control information detecting method and apparatus in optical-type video disc player |
| 01/12/1982 | US4310910 Optimal polarization for the optical readout of high density video recording |
| 01/12/1982 | CA1116294A1 Apparatus for reading an optical radiation-reflecting record carrier |
| 01/08/1982 | EP0044345A4 Process for making video and similar discs. |
| 01/07/1982 | WO1982000067A1 Apparatus and method for reading optical discs |
| 01/05/1982 | US4309713 Thermal recording elements |
| 01/05/1982 | CA1115839A1 Random access storage device with a movable recording medium |
| 01/05/1982 | CA1115838A1 Information storage and retrieval system |
| 01/05/1982 | CA1115837A1 Error checking method and apparatus for digital data in optical recording systems |
| 12/29/1981 | US4308612 Optical information recording apparatus including error checking circuit |
| 12/29/1981 | US4308557 Video disc system |
| 12/29/1981 | US4308545 Protected optical disc |
| 12/29/1981 | US4308327 Motion picture film having digitally coded soundtrack and method for production thereof |
| 12/29/1981 | US4307930 Light beam scanning device |
| 12/24/1981 | WO1981003712A1 Flexible optical disc and method and apparatus for stabilizing during writing and/or reading of information thereon |
| 12/23/1981 | EP0042307A2 An optical recording element and a method of recording information using the element |
| 12/23/1981 | EP0041982A1 A method for recording signals on bands by means of laser beams and apparatus for carrying out the method. |
| 12/15/1981 | US4306142 Optical modulation device |
| 12/15/1981 | US4306013 Asymmetrical radiation exposure of spin coated photoresist to obtain uniform thickness coating used to replicate spiral grooves in plastic substrate |
| 12/08/1981 | US4305144 Optically reproducing and tracking system for spiral information track |
| 12/08/1981 | US4305081 Multilayer record blank for use in optical recording |
| 12/08/1981 | US4304848 Method for photographic replication of information on an optical data storage medium |
| 12/08/1981 | CA1114062A1 Motion picture sound system |
| 12/02/1981 | EP0040995A2 Optical record-playback device for an information carrier |
| 12/02/1981 | EP0040878A1 Apparatus comprising an electrically controllable reflection device for deflecting a radiation beam |
| 11/24/1981 | US4302830 Optical information reading-out apparatus |
| 11/24/1981 | US4302671 Radiation image read-out device |
| 11/24/1981 | US4302411 Method of producing plate-shaped body |
| 11/24/1981 | US4302096 Graphic forms overlay apparatus |
| 11/18/1981 | EP0039836A2 A scanning head for an optical disc system |
| 11/18/1981 | EP0039725A1 Fluorescent soundtrack readout system. |
| 11/18/1981 | EP0039719A1 Motion picture film having digitally coded soundtrack and method for production thereof. |
| 11/17/1981 | US4301527 Optical head for a videodisc recorder/player |
| 11/17/1981 | US4301487 Rotary head assembly with lubricating double sleeve construction |
| 11/17/1981 | US4301374 Shutter system for optical multi-lens scanner |
| 11/17/1981 | US4301099 Method and device for manufacturing a plastics record carrier |
| 11/17/1981 | CA1112762A1 Thermosensitive data-carrier and method |
| 11/17/1981 | CA1112408A1 Process for producing information carrying discs |
| 11/10/1981 | US4300227 Replicable optical recording medium |
| 11/10/1981 | US4300226 Compensation apparatus for a servo system with periodic command signals |
| 11/10/1981 | US4300143 Thin protective overcoat layer for optical video disc |
| 11/10/1981 | CA1112365A1 Frequency selective optical data storage system |
| 11/10/1981 | CA1112361A1 Optically recordable and readable information carrier and process |
| 11/04/1981 | EP0039094A1 Recording material for storage of digital information and a recording method for storage of digital information |
| 11/03/1981 | US4298975 Optical recording medium and method of optically recording information thereon |
| 11/03/1981 | US4298974 Optical head for a videodisc player/recorder |
| 11/03/1981 | US4298684 Reflective data storage medium made by silver diffusion transfer in silver-halide emulsion incorporating nuclei |
| 11/03/1981 | US4298499 Recovery of catalysts |
| 11/03/1981 | CA1111964A1 Video disc player |
| 10/28/1981 | EP0038499A1 Optical recording and reproducing system |
| 10/20/1981 | US4296491 Information carrier having inter-track identification code information |