| 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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| 09/03/1985 | US4539665 Tracking servo control unit for an information reproducing apparatus |
| 09/03/1985 | US4539664 Control system for optical information signal reproduction device |
| 09/03/1985 | US4539662 Method and system for optically recording and playing back information on a recording medium having magnetization film thereon |
| 09/03/1985 | US4539573 Protective construction for optical disk units |
| 09/03/1985 | US4539572 Direct-read-and-write |
| 09/03/1985 | US4539079 Controlled radial thickness distribution |
| 09/03/1985 | US4538882 Two-dimensional suspension |
| 09/03/1985 | CA1193008A1 Information-recording process and apparatus |
| 09/03/1985 | CA1193007A1 Optical information storage |
| 08/29/1985 | WO1985003731A1 Ground securing device |
| 08/28/1985 | EP0153226A1 Process for producing numerical recordings, and articles produced by that process |
| 08/28/1985 | EP0152535A2 Method and apparatus for encoding an information storage medium with audio test signals |
| 08/27/1985 | US4538257 Adaptively stabilized recording for direct read after write optical memories |
| 08/27/1985 | US4538252 Donor molecule changes dielectric constant when irradiated |
| 08/27/1985 | US4538159 Heat deformable layer of a dye and binder |
| 08/27/1985 | US4537670 Apparatus for making a stamping master for video disk replication |
| 08/27/1985 | CA1192662A1 Erasable recording medium comprising a dimer acid polyamide resin |
| 08/27/1985 | CA1192592A1 Two axis linear motor for optical focusing and tracking system in optical recording |
| 08/21/1985 | EP0152284A2 Noise reduction in optical sound track systems |
| 08/21/1985 | EP0152245A2 Optical disk control apparatus |
| 08/21/1985 | EP0152204A2 Coating process |
| 08/21/1985 | EP0152203A1 Coating process |
| 08/21/1985 | EP0152165A2 Defect inspecting apparatus for inspecting defects in optical type disc |
| 08/21/1985 | EP0152142A2 Method for reproducing information from an optically readable record carrier and apparatus for use in said method |
| 08/20/1985 | US4536868 Protected optical disk with a free layer holder |
| 08/20/1985 | US4536866 Information retrieval system and apparatus |
| 08/20/1985 | US4536864 Apparatus for reading an optically coded disc-shaped record carrier |
| 08/20/1985 | US4536863 Method and apparatus for recovering information from a videodisc |
| 08/20/1985 | US4536471 Optical information recording medium |
| 08/20/1985 | US4536415 Treating with ion-free oxidizing gas; non-electrolytic deposited metal reflection layer |
| 08/20/1985 | US4535548 Method and means for drying coatings on heat sensitive materials |
| 08/20/1985 | CA1192307A1 Erasable optical recording medium |
| 08/20/1985 | CA1192306A1 Optical disc player |
| 08/20/1985 | CA1192305A1 Servo system including velocity and phase servo circuits for digital audio record disc reproducing apparatus |
| 08/14/1985 | EP0151220A1 Servo system for the positioning of an optical beam |
| 08/13/1985 | US4535439 Optical having index mark and sector mark |
| 08/13/1985 | US4535434 Optical disc and disc drive mechanism |
| 08/13/1985 | US4535431 Optical track follower device with sampling |
| 08/13/1985 | US4535366 Universal video data playback |
| 08/13/1985 | US4535030 With esters of beta-acryloxypropionic acid and diacrylate copolymer |
| 08/13/1985 | US4534685 Tracer control system |
| 08/13/1985 | CA1191949A1 Optical reproducing device having a focus servo system |
| 08/07/1985 | EP0150829A1 Optical disk |
| 08/07/1985 | EP0150604A1 Optical recording member |
| 08/07/1985 | EP0150306A1 Information storage disk transducer position control |
| 08/07/1985 | EP0150293A1 Substrate for optical recording media |
| 08/06/1985 | US4534031 Coded data on a record carrier and method for encoding same |
| 08/06/1985 | US4534021 Angularly multiplexed optical recording medium |
| 08/06/1985 | US4533826 Opto-electronic focusing-error detection device |
| 08/06/1985 | CA1191602A1 Disc reproducing apparatus |
| 08/06/1985 | CA1191597A2 Method for forming video discs |
| 08/06/1985 | CA1191371A1 Modulating a laser beam |
| 08/01/1985 | WO1985003376A1 Optical data storage and readout apparatus |
| 08/01/1985 | WO1985003244A1 Coating process |
| 08/01/1985 | WO1985003243A1 Ptfe coating process |
| 07/31/1985 | EP0149888A1 Servo control system for a data recording system and a data recording system provided therewith |
| 07/31/1985 | EP0149755A2 Optical information recording and reproducing apparatus |
| 07/31/1985 | EP0149626A1 Optical disc unit with flexible cover sheet |
| 07/30/1985 | US4532621 Device and method for recording information on a disk |
| 07/30/1985 | US4532619 Method and apparatus for reducing semiconductor laser optical noise |
| 07/30/1985 | US4532616 Method for optically encoding digital data on a substrate and the data record carrier formed thereby |
| 07/30/1985 | US4532608 Memory device |
| 07/30/1985 | US4532528 Archival optical storage medium |
| 07/30/1985 | US4532522 Optical recording apparatus |
| 07/30/1985 | CA1191256A1 Moving diffraction grating for an information track centering system for optical recording |
| 07/23/1985 | US4531206 Method and apparatus for detecting tracking error |
| 07/23/1985 | US4531205 Optoelectronic method of reading data on a magnetic medium and circuit for performing said method |
| 07/23/1985 | US4531183 Information recording material |
| 07/23/1985 | US4531136 Optical medium |
| 07/23/1985 | US4531099 Amplifier |
| 07/17/1985 | EP0148278A1 Light pickup |
| 07/16/1985 | US4530082 Optical disc write/read employing passive focus maintenance |
| 07/16/1985 | US4530080 Optical recording/reproducing system |
| 07/16/1985 | US4530079 Track following system for optical disc drive |
| 07/16/1985 | US4530073 Disc reproducing apparatus |
| 07/16/1985 | US4530018 Information recording/reproducing apparatus with disk having sections of different angular velocity |
| 07/16/1985 | US4529991 Method for copying optical information |
| 07/16/1985 | US4529688 Ablative optical recording media |
| 07/16/1985 | US4529684 Benzenedithiol nickel complex |
| 07/16/1985 | CA1190658A1 High performance multi-processor system |
| 07/16/1985 | CA1190645A1 Mobile pre-etched data carrier and an optical tracking device using such a carrier |
| 07/16/1985 | CA1190644A1 Galvo position sensor for improved track selection in optical data disk system |
| 07/10/1985 | EP0148028A2 Optical information reproducing apparatus |
| 07/10/1985 | EP0147945A1 Data storage medium |
| 07/10/1985 | EP0147853A2 Objective lens driving device |
| 07/10/1985 | EP0147749A2 Optical head |
| 07/10/1985 | EP0147620A2 Optical head |
| 07/09/1985 | US4528654 Dustproof case for an optical information tape including a clamping lens |
| 07/09/1985 | US4528588 Method and apparatus for marking the information content of an information carrying signal |
| 07/09/1985 | US4528445 Head for optical card reader |
| 07/09/1985 | CA1190321A1 Magneto-optical head assembly |
| 07/09/1985 | CA1190276A1 Thermo-optical method for writing information and an information medium for the application of said method |
| 07/03/1985 | EP0147090A2 Optical recording method; optical medium and method for reading said medium |
| 07/03/1985 | EP0147083A2 Photostable cyanine dye and optical recording medium |
| 07/03/1985 | EP0147065A2 Optical recording medium and recording and reproducing apparatus therefor |
| 07/03/1985 | EP0147006A2 Switching laser beam apparatus for optical recording |
| 07/03/1985 | EP0146762A1 Optical Head |
| 07/02/1985 | US4527263 Eccentricity correction for an optical disk device |
| 07/02/1985 | US4527173 Erasable, reusable optical recording element and method |
| 07/02/1985 | CA1189970A1 Narrow-bodied, single-and twin-windowed portable laser scanning head for reading bar code symbols |