Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › 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
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)
09/1986
09/02/1986US4609813 Optical systems employing ovate light beams
09/02/1986US4609812 Prerecorded dual strip data storage card
09/02/1986US4609611 Mixture of metal with gallium sulfide or molybdenum oxide
09/02/1986CA1210862A1 Interactive video disc systems
08/1986
08/28/1986WO1986004997A1 Interferometers
08/27/1986EP0192462A2 Novel oxachalcogenazole dyes, processes for their preparation, and articles containing these dyes
08/27/1986EP0192433A1 Optical head for optical data storage and readout
08/27/1986EP0192256A2 Magnetooptical storage element
08/27/1986EP0192244A1 An optical disc
08/27/1986EP0192215A1 Tetraphenyl-di-thiolene complexes, asymmetrical substituted benzoines and optical recording mediums containing the complexes
08/27/1986EP0191970A1 Recording information media comprising chromophores
08/27/1986CN86100753A 光学的再现方法 The optical reproducing method
08/27/1986CN85109630A Optical modulation system
08/26/1986US4608680 Optical disc player with tilt correction
08/26/1986US4608676 Apparatus for optically reproducing an information signal from a record disk
08/26/1986US4607956 Position detecting apparatus
08/26/1986US4607913 Electrodynamic device for translating a lens system
08/22/1986EP0124580A4 Fine and coarse servo system for access and tracking on an optical disk.
08/20/1986EP0191467A2 Optical disc apparatus
08/20/1986EP0191226A2 Rewritable magneto-optical disc
08/20/1986EP0191215A2 Media for optical information storage comprising an organic macrocyclic chromophore substituted with a film conferring organic substituent
08/20/1986CN86100902A Magnetic-optical disc memory system
08/19/1986US4607359 Optical recording/reproducing apparatus
08/19/1986US4607358 Optical memory apparatus
08/19/1986US4607357 Optical pickup apparatus for recorded information with tilt indication
08/19/1986US4607356 Optical head in a device for recording and reading a data carrier
08/19/1986US4607355 For use in an optical disk file device
08/19/1986US4607290 Image information filing apparatus
08/19/1986US4607264 Recording medium of deformable air-sandwich structure
08/19/1986US4607157 Automatic focus offset correction system
08/19/1986CA1210151A1 Focusing control circuitry for an optical memory system
08/14/1986WO1986004721A1 Focus regulation for an apparatus for disc-shaped rotating information supports
08/14/1986WO1986004720A1 Method for controlling access to recorded data
08/13/1986EP0190774A1 Record carrier body provided with preformed optically detectable servo-track portions and sector addresses
08/13/1986EP0190698A1 Reproduction method and apparatus of optically recorded signal
08/13/1986EP0190444A1 Optical-recording medium
08/13/1986EP0190439A2 Focus servo loop correction
08/13/1986EP0190438A2 Focus servo loop off-set compensation
08/13/1986EP0190349A1 Apparatus for recording data
08/13/1986EP0190332A1 Interactive multi-user laser disc system
08/12/1986US4606018 Optical recording medium
08/12/1986US4606017 Multilayer- transparent plates, synthetic resin, and second thin film of amorphous resin
08/12/1986US4606016 Write protection and data detection using differential detector
08/12/1986US4605607 Optical recording media
08/12/1986CA1209698A1 Magneto-optic memory device
08/12/1986CA1209697A1 Optical recording medium
08/06/1986EP0189948A1 Record-carrier body provided with a relief structure of optically detectable servo-track portions and sector addresses and apparatus for forming said structure
08/06/1986EP0189933A2 Servo system of storage apparatus for controllably projecting an optical beam to an optical disk
08/06/1986EP0189932A2 Track servo system for controllably projecting an optical beam to an optical disk
08/06/1986EP0189905A2 Method of manufacturing recording discs
08/06/1986EP0189811A1 Optical information recording and reproducing apparatus
08/06/1986EP0189462A1 Optical storage structure
08/05/1986US4604739 Optical focus detection employing rotated interference patterns
08/05/1986US4603526 Ground securing device
08/05/1986CA1209265A1 Method and apparatus for encoding a binary digital information signal
08/05/1986CA1209263A1 Optical reproducing apparatus
07/1986
07/31/1986WO1986004446A1 Recording/reproducing apparatus using optical disk
07/31/1986WO1986004436A1 Apparatus for reading optical card
07/30/1986EP0189341A1 Photographic colour film numerical memory and optical read-out device therefor
07/30/1986EP0189188A2 Optical recording medium
07/30/1986EP0189187A2 Magnetic-optical disc memory system
07/30/1986EP0189135A2 Recording method and device of optical recording medium
07/30/1986EP0188785A2 Use of polymers with liquid-crystal properties as information supports
07/30/1986EP0188627A1 Apparatus for recording and/or reproducing optical cards
07/30/1986EP0188625A1 Method of producing optical data recording medium
07/30/1986EP0188624A1 Apparatus for detecting tracking error of optical head
07/30/1986EP0188549A1 Optical storage structure.
07/30/1986EP0188523A1 Improved substrate for rigid disk storage media and method and apparatus for making the same
07/30/1986EP0093427B1 Optical information processor
07/29/1986US4603414 Apparatus for making a data record carrier
07/29/1986US4603413 Digital sum value corrective scrambling in the compact digital disc system
07/29/1986US4603410 Error signal generating device for use in an apparatus for optically reading information with a resistance network connected to photo detector elements
07/29/1986US4603099 Method for recording motion picture images and laser written data
07/29/1986US4602848 Optical apparatus with 5-degree of-freedom positioning device
07/23/1986EP0188331A2 Optical recording medium
07/23/1986EP0188276A1 Actuator apparatus for an optical data storage device
07/23/1986EP0188100A2 Optical recording medium formed of chalcogen oxide and method for producing same
07/23/1986EP0188088A2 Servo controlling circuit
07/23/1986EP0188001A2 Optical information recording medium
07/23/1986EP0064196B1 Optical data recording and reproducing apparatus
07/22/1986CA1208361A1 Optical focus position control in optical disc apparatus
07/17/1986WO1986004178A1 Reading device for the optical scanning of information recorded on a movable disc-shaped medium
07/16/1986EP0187716A2 Semiconductor laser array device
07/16/1986EP0187664A2 Optical arrangement for forming an elongated laser beam spot on erasable optical disks
07/16/1986EP0187191A2 Information recording medium and method
07/15/1986US4600831 Apparatus to focus light on a surface based on color
07/15/1986US4600682 Multilayer, reflection, aluminum, adhesion, dusts, defocusing, spheres, matrices
07/15/1986US4600625 Optical information recording medium
07/15/1986US4600280 Digital audio recording/playback system for motion picture film
07/09/1986EP0186911A2 Reversible memory system
07/09/1986CN85109508A Optical information memory medium and methods and apparatus for recording and erasing information
07/08/1986US4599718 Melting and filling
07/08/1986US4599717 Direct read after write verify using differential detection
07/08/1986US4599715 Method and apparatus for sound track reproduction
07/08/1986US4599714 Photo-magnetic reproducing apparatus
07/08/1986US4599410 Oxachalcogenazole dyes and processes for their preparation
07/08/1986US4599298 Graphic arts imaging constructions using vapor-deposited layers
07/08/1986CA1207443A1 Optically readable record carriers
07/08/1986CA1207440A1 Disc player with search noise suppression
07/03/1986WO1986003875A1 Method and apparatus for handling information
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