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)
12/1986
12/17/1986	EP0205210A1 Device for guiding an information carrier in tape form
12/17/1986	EP0205202A1 Apparatus for projecting a light beam onto an optically readable record carrier
12/17/1986	EP0205188A2 An information writing and reading method comprising an optical disc memory with liquid crystal
12/17/1986	EP0205187A2 Optical disc memory with liquid crystal
12/17/1986	EP0205039A2 Optical storage device and method of manufacturing
12/17/1986	EP0204876A1 Optical data storage medium having a highly reflective organic information layer
12/17/1986	CN86102702A Reproducing devices for recording information
12/16/1986	US4630252 Control apparatus for optical disc player for locating blank tracks
12/16/1986	US4630250 Method and apparatus for searching an address signal on video and/or audio disc
12/16/1986	US4629672 Electrography; optical recording media photsensitivity; durability
12/16/1986	US4629668 Optically read recording medium and method for making same
12/16/1986	US4629649 Using germanium-tin material
12/16/1986	CA1215467A1 Apparatus for improving focus during playback of an optical data record
12/10/1986	EP0204495A2 Astigmatism correction in laser diodes
12/10/1986	EP0204378A1 Method for manufacturing a recordable optical memory disc
12/10/1986	EP0204255A2 Optical recording disc and method of the production thereof
12/09/1986	US4628497 Apparatus for reproducing information from an optically readable record carrier
12/09/1986	US4628367 Method and device for reading digital data in an optical mass memory system using electrophotography
12/09/1986	US4627809 Metal mold and stamper for injection molding of a plastic disc for a high-density information recording carrier
12/09/1986	US4627725 Optical axis monitoring system
12/09/1986	US4627688 Beam splitter
12/09/1986	CA1215175A1 Optical data retrieval system using multi-spectral light sources
12/09/1986	CA1215000A1 Protective construction for optical disk units
12/09/1986	CA1214934A1 Information recording medium
12/09/1986	CA1214933A1 Quadrilayer optical draw medium
12/03/1986	EP0203826A2 Optical recording medium and method of recording thereon
12/03/1986	EP0203816A2 Optical disc drive apparatus
12/03/1986	EP0203788A2 Information recording and reproducing apparatus
12/03/1986	EP0203562A2 An information recording and reproducing apparatus
12/03/1986	EP0203176A1 Interactive multi-user laser disc system
12/02/1986	US4627041 Automatic focusing system for reading information from a recording medium
12/02/1986	US4627040 Optical disk tracking apparatus
12/02/1986	US4627039 Head positioning servo system for optical recording with coarse and fine control
12/02/1986	US4627038 Optical disk storage unit having a servo system with different velocity inputs
12/02/1986	US4626930 Rotary recording medium having different video signals recorded on mutually adjacent tracks and reproducing apparatus therefor
12/02/1986	US4626679 Optical head and method of detecting the focus thereof
12/02/1986	US4626673 Device for accurately focussing a laser beam
12/02/1986	US4626671 Lens system for optically recorded storage card reader
12/02/1986	US4626496 Optical information recording medium
12/02/1986	US4626361 Binder-mixtures for optical recording layers and elements
12/02/1986	US4625384 Method of making a recording disc
12/02/1986	CA1214873A1 Optical sound track playback apparatus and method
12/02/1986	CA1214872A1 Optical disc structure and related method of manufacture
12/02/1986	CA1214869A1 Apparatus for reproducing recorded data
11/1986
11/26/1986	EP0202914A2 Process for effecting erasure of optical information media
11/26/1986	EP0202689A2 Device for processing optical data
11/25/1986	US4625303 Automatic focusing device
11/25/1986	US4625217 Optical recording media
11/25/1986	US4624914 Optical information recording medium of Te, O and Pd and method for making same
11/25/1986	US4624526 Optical pickup device
11/25/1986	CA1214549A1 Apparatus for reading an optically coded disc-shaped record carrier
11/20/1986	EP0201917A2 Optical system for an optical memory
11/20/1986	EP0201860A2 Multilayered article including crystallization inhibiting layer and method for fabricating same
11/20/1986	EP0201603A1 System for detecting tracking error of an optical head
11/19/1986	CN86102770A Position-sensitive radiation detector
11/18/1986	US4623994 Scanning servo system for optical-disc information reproducing apparatus
11/18/1986	US4623993 Reducing listeners discomfort resulting from track loss in compact disc players
11/18/1986	US4623896 Proportional density recording medium
11/18/1986	US4623784 Laser recording apparatus with off-center lens and error detection
11/18/1986	US4623610 Positive image-forming method using 4-methyl-1-pentene polymer
11/12/1986	EP0201117A1 Method of providing a substrate of an optically readable information disc with an optically detectable structure
11/12/1986	EP0201093A1 Pre-engraved information carrier and optical read device therefor
11/12/1986	EP0200848A2 Multi-laser mount
11/12/1986	EP0200833A1 Optical data storage medium comprising a chromophore/polymer information layer
11/12/1986	CN85103311A Driving device of optical system used in optical recording and duplicated apparatus
11/12/1986	CA1213979A Coarse position error signal generation in an optical disk storage system employing course servo tracks
11/12/1986	CA1213978A Fine and coarse servo system for access and tracking on an optical disk
11/12/1986	CA1213977A System for sensing the rotational position of a rotating disk having coarse seek tracks
11/11/1986	US4622661 Optically readable storage disc
11/11/1986	US4622659 Focus detection and control apparatus for maintaining accurate focusing in an optical memory system by detecting reflected beam diameter variations at spaced predetermined locations
11/11/1986	US4622564 Optical information recording apparatus
11/11/1986	US4622284 Process of using metal azide recording media with laser
11/11/1986	US4622261 Laser recording material
11/06/1986	WO1986006535A1 Method of recording data onto an optical data recording card
11/05/1986	EP0200434A1 Method for reading out optically recorded data and device therefor
11/05/1986	EP0199824A1 Resin material used for an optical device
11/05/1986	EP0199820A1 Disc device
11/05/1986	CN85103577A Readout system of data-storage
11/05/1986	CN85103576A Information write-read device by means of radiating light spot to a rotating information plane
11/04/1986	US4621353 Optical memory system providing improved focusing control and improved beam combining and separating apparatus
11/04/1986	US4621352 Optical memory device
11/04/1986	US4621351 Beam alignment system
11/04/1986	US4621032 Method of forming a data storage medium and data storage device by congruent sublimation
11/04/1986	CA1213669A1 Protected optical disk with a free layer holder
10/1986
10/29/1986	EP0199565A2 Semiconductor laser apparatus for optical heads
10/29/1986	EP0199425A1 Record carrier and apparatus for manufacturing such a record carrier
10/29/1986	EP0199136A2 Optical recording disc
10/29/1986	EP0198894A1 Optical data reader.
10/29/1986	CN86102890A Disc-shaped information carrier and method of manufacturing it
10/28/1986	US4620200 Scan beam velocity-compensation recording system
10/28/1986	US4619990 Polymeric dyes with pendent chromophore groups capable of undergoing thermoplastic deformation
10/28/1986	US4619890 Optical recording element having a polymerized crosslinked homopolymer smoothing layer
10/28/1986	US4619804 Interjecting between substrate and transparent mold a radiation curable liquid and curing
10/28/1986	CA1213368A1 Optical reproducing apparatus
10/28/1986	CA1213163A1 Recording medium for optical data storage
10/23/1986	WO1986006203A1 Process for fabricating glass tooling
10/23/1986	WO1986006201A1 Automatic correction system for the servo-circuit of a device with optical scanning of a rotating information support
10/23/1986	WO1986006200A1 Automatic correction system for the servo-circuit of a device with optical scanning of a rotating information support
10/23/1986	WO1986006198A1 Process for fabricating optical recording disk
10/23/1986	WO1986006189A1 Control circuit

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