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)
12/1992
12/09/1992	EP0517490A2 Multiple data surface optical medium and data storage system
12/09/1992	EP0517451A1 Laser astigmatism compensation
12/09/1992	EP0517230A2 Disc-shaped recording medium and apparatus for reproducing track addresses recorded on the disc-shaped recording medium
12/09/1992	EP0517227A1 Method for information storage in an optically readable memory
12/09/1992	EP0517099A1 Error motive signalling of optical information carriers
12/09/1992	EP0516985A1 Synthesis of squarylium compounds
12/09/1992	EP0516907A1 Write-once-read-many optical disk
12/09/1992	EP0516906A2 An optical disc and pickup apparatus therefor
12/09/1992	EP0516813A1 Control device for optical disks
12/09/1992	EP0500717A4 Two-photon laser scanning microscopy
12/09/1992	CN1066931A Method for shortening access time
12/09/1992	CN1066930A 光学扫描装置 Optical scanning means
12/09/1992	CN1019428B Optical scanning method for treating information medium scanned by three-beam
12/08/1992	US5170390 Optical recording element and driving system
12/08/1992	US5170389 Semiconductor laser driving circuit with control circuit power voltage monitor for preventing inadvertent recording
12/08/1992	US5170387 Apparatus for reading an information pattern from a record carrier and signal-processing circuit for use in such apparatus
12/08/1992	US5170385 Recording medium with unembossed area indicating sector divisions
12/08/1992	US5170384 Tracking control for optical information recording and reproducing apparatus
12/08/1992	US5170383 Magneto-optical data recording system
12/08/1992	US5170382 Magneto-optical recording apparatus for creating magnetic domains with reduced tails
12/08/1992	US5169745 Optical information recording medium
12/08/1992	US5169744 Having microcrystalline naphthoquinonimine dye and hydrophobic polymeric binder
12/08/1992	US5168887 Single wafer processor apparatus
12/08/1992	CA1311300C Information recording discs
12/05/1992	WO1992022057A1 Medium, method and apparatus for storing and retrieving information
12/05/1992	CA2087531A1 Medium, method and apparatus for storing and retrieving information
12/05/1992	CA2066153A1 Multiple data surface data storage system and method
12/05/1992	CA2066152A1 Multiple data surface optical data storage system and method
12/03/1992	DE4218036A1 Optical recording material for number of wavelengths - retains information in layers formed as cylinders in annular grooves on glass substrate
12/03/1992	DE4205188A1 Feed mechanism for optical disc pick=up - has module moving on guides around curved gear tooth rack unit to access both sides of disc
12/02/1992	EP0516557A1 Optical disc drive
12/02/1992	EP0516390A2 Lens drive apparatus in optical pickup and method of producing the same
12/02/1992	EP0516329A2 Optical disc and method for producing the optical disc
12/02/1992	EP0516328A1 Optical pick-up device
12/02/1992	EP0516318A2 Apparatus for controlling semiconductor laser operating temperature
12/02/1992	EP0516178A2 Optical information recording medium in which a protective layer comprises a mixture layer containing ZnS and SiO2
12/02/1992	EP0516125A2 Rewritable disk and disk apparatus
12/02/1992	EP0515972A1 Polymerizable liquid crystal materials and polymer compositions displaying ferroelectric smectic liquid crystal phases
12/02/1992	EP0515422A1 Optical scanning device.
12/02/1992	CN1066734A 光学扫描装置 Optical scanning means
12/02/1992	CN1066733A 光学扫描装置 Optical scanning means
12/01/1992	US5168491 Method for controlling radiation power of a laser beam irradiated onto a recording medium
12/01/1992	US5168490 Record carrier with optically readable phase structure having tracks with different phase depths and apparatus for reading such a record carrier
12/01/1992	US5168489 Recorded data reader employing a polarized beam splitter
12/01/1992	US5168488 Optical recording and reproducing apparatus
12/01/1992	US5168487 Optical recording and/or reproducing apparatus
12/01/1992	US5168486 Recording device for recording a blank disk from an optical disk
12/01/1992	US5168485 Device for optically reading optical recording medium
12/01/1992	US5168031 Phthalocyanine dyes
12/01/1992	US5167996 Bonding two transparent resin layers, one of which has recording layer on interior surface
12/01/1992	US5167792 Master holder of stamper electroforming apparatus and electroforming method
12/01/1992	CA1311052C Feedback control apparatus in an optical recording and reproducing device
11/1992
11/26/1992	WO1992021125A1 Optical data storage and retrieval system and method
11/26/1992	WO1992017549A3 Polyketomethine dyes
11/26/1992	DE4206268A1 Glass compsn. capable of being surface hardened - by ion exchange using oxide(s) of silicon, aluminium, lithium, sodium and zirconium
11/25/1992	EP0515095A1 Polymer blends for optical applications
11/25/1992	EP0515014A1 Information signal recording apparatus and apparatus for reproducing recorded information signal
11/25/1992	EP0514799A1 Process for producing an optical recording medium
11/25/1992	EP0514773A2 Apparatus for optically processing data
11/25/1992	EP0514733A1 Optical recording medium
11/25/1992	EP0514703A2 A bearing ring with low sliding friction for an optical disk
11/25/1992	EP0514619A1 Optical-head drive
11/25/1992	EP0514589A2 Method and apparatus for erasing information from optical recording tape with a thermo-deforming layer
11/25/1992	CN1019241B Magnetic light recorder
11/24/1992	US5166989 Integrated polarization detection system
11/24/1992	US5166935 Method of determining correctness and contents of control data structures in moving media data storage systems
11/24/1992	US5166921 Optical disk carrying tracking information in multiple formats and apparatus for analyzing same
11/24/1992	US5166916 In a recording medium playback system
11/24/1992	US5166915 Process for track jumping
11/24/1992	US5166914 Data recording/reproducing apparatus with two-dimensional equalizer for crosstalk cancellation
11/24/1992	US5166913 Optical disk device for record and reproduction of additional information besides reproducing of basic information
11/24/1992	US5166807 Apparatus for recording and reproducing code data for use in video disc recorder
11/24/1992	US5166804 Reproduction apparatus designating audio and/or video signals to be reproduced
11/24/1992	US5166506 Method for determining an imaging system focus error
11/24/1992	US5166359 Azulenemethine dyes and an optical recording medium containing the novel dyes
11/24/1992	US5166339 Processes for the preparation of titanium phthalocyanines
11/24/1992	US5166035 Optical information memory medium
11/24/1992	US5166034 Multilayer heat sensitive elements
11/24/1992	US5166014 Multilayer optical readable disk formed from a photosensitive resin with a protective coating, removal and engraving
11/24/1992	US5165340 Multicolor printing system for the silk-screen printing of compact discs
11/22/1992	CA2068618A1 Optical recording medium and production thereof
11/19/1992	EP0514253A1 Optically readable information carrier, and reading apparatus for such a carrier
11/19/1992	EP0514211A1 Optical recording medium, recording system and reproducing system
11/19/1992	EP0513785A2 Control apparatus of laser diode
11/19/1992	EP0513370A1 Halogenated phthalocyanine compound, production thereof, and optical recording medium produced therefrom
11/19/1992	EP0513062A1 Data storage medium and methods for recording and reading of data.
11/19/1992	DE4138109A1 Optical recording disc mfr. - forming sandwich of non-conductive, recording and protective film on substrate, and covering with protective plate
11/17/1992	US5165089 Optical disk players having readback circuits with noise rejection and read signal retiming
11/17/1992	US5165088 Optical pickup with bilateral and vertical symmetry
11/17/1992	US5164936 Optical pickup system with vibration protection
11/17/1992	US5164933 Reading signal processing circuit in optical information reproducing apparatus
11/17/1992	US5164932 Acquiring a best focus using a focus signal offset
11/17/1992	US5164931 Method and apparatus for control of positioning
11/17/1992	US5164930 Optical pickup
11/17/1992	US5164928 Error recovery in a cartridge handling system
11/17/1992	US5164646 Tracking servo system
11/17/1992	US5164577 Optical recording medium with region for identifying defective written data
11/17/1992	US5164465 Sulfonated polyaniline salt compositions, processes for their preparation and uses thereof
11/17/1992	US5164290 Optical recording medium
11/17/1992	US5164287 Photochromic material and rewritable optical recording medium

1 ... 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 ... 1028