Patents
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)
08/2004
08/19/2004US20040160888 Recording medium having substrate with thickness dependent on numerical aperture of object lens, method of forming the optical medium and optical recording/reproducing apparatus
08/19/2004US20040160887 High-capacity optical read/write pick-up mechanism and associated methods
08/19/2004US20040160886 High-speed optical read/write pick-up mechanisms and associated methods
08/19/2004US20040160885 Objective lens for optical pickup apparatus, optical pickup apparatus and optical information recording reproducing apparatus
08/19/2004US20040160884 Optical disc having uniform structure
08/19/2004US20040160882 Optical recording medium having dual information surfaces
08/19/2004US20040160881 Optical recording medium having dual information surfaces
08/19/2004US20040160880 Optical disk device
08/19/2004US20040160879 Recording apparatus for use with optical recording medium and method thereof
08/19/2004US20040160878 Apparatus and method for controlling data write operations in optical storage system
08/19/2004US20040160877 Optical disk apparatus and characteristic determining method
08/19/2004US20040160876 Method for determining a tilt angle of an optical pickup head
08/19/2004US20040160875 Recording method, program, storage medium, and information recording apparatus
08/19/2004US20040160874 Method of automatically optimizing writing on optical recording medium and optical recording/reproducing apparatus for performing the same
08/19/2004US20040160873 Method and system for creating an optical drive write strategy for an unknown optical media
08/19/2004US20040160870 Method, apparatus, and medium including computer readable code for processing data in a drive
08/19/2004US20040160869 Information recording method and apparatus
08/19/2004US20040160868 Information recording medium, and method and apparatus for managing defect thereof
08/19/2004US20040160867 Information recording and reproducing apparatus, disc apparatus and defect area replacement method
08/19/2004US20040160866 Circuit for tracking error signal detection on an optical storage medium
08/19/2004US20040160865 Method and arrangement for compensating scanning disturbances on optical recording media
08/19/2004US20040160864 Optical disk apparatus having compensation for objective lens dislocation
08/19/2004US20040160863 Parameter setting apparatus and parameter setting method, information recording apparatus and information recording method, and information recording medium
08/19/2004US20040160799 Write-once optical disc, and method and apparatus for allocating spare area on write-once optical disc
08/19/2004US20040160510 Disc media marking
08/19/2004US20040160284 Oscillator and high-frequency superposing module for driving laser diode
08/19/2004US20040159770 Method of and apparatus for adjusting the focus position of an optical pickup
08/19/2004US20040159707 Layer structure and method of manufacture for optical memory strip (OMS)
08/19/2004CA2514514A1 Interactive electronic device with optical page identification system
08/18/2004EP1447807A2 Method and apparatus of recording data in the optical recording medium
08/18/2004EP1447806A1 Reproduction-only recording medium, reproduction device, reproduction method
08/18/2004EP1447800A1 Optical recording substrate; optical recording medium; and manufacturing method thereof
08/18/2004EP1447799A1 Optical information recording medium
08/18/2004EP1447798A2 Objective lens for optical pickup apparatus, optical pickup apparatus and optical information recording reproducing apparatus
08/18/2004EP1447797A2 Optical disk and optical disk apparatus
08/18/2004EP1447795A1 Optical recording medium
08/18/2004EP1446801A2 Optical disk , card or media and method for coating of said optical disk, card or media
08/18/2004EP1446800A1 Writable high-capacity optical storage media containing metal complexes
08/18/2004EP1446799A2 Appliance for recording or playing back information having means for detecting or moving the scanning location on a disc with a wobble track
08/18/2004EP1446798A2 Appliance for recording or playing back information having means for signal generation from a wobble signal
08/18/2004EP1446455A2 Scratch-resistant coating method for optical storage media
08/18/2004EP1018112A4 Embedded multimedia control code method and apparatus
08/18/2004EP0824753B1 Objective lens and scanning device using such an objective lens
08/18/2004CN2634589Y Anti-fake optical disc
08/18/2004CN1522440A Optical recording/reproducing medium, stamper for manufacturing optical recording/reproducing medium, and optical recording/reproducing device
08/18/2004CN1522439A 光学扫描装置 The optical scanning device
08/18/2004CN1522438A 光盘装置 Optical disc device
08/18/2004CN1522437A Optical pickup and disc drive apparatus
08/18/2004CN1522436A Record carrier and apparatus for scanning the record carrier
08/18/2004CN1521749A Optical recording medium and method for producing the same
08/18/2004CN1521748A Optical information recording medium
08/18/2004CN1521747A Optical information-recording medium, novel oxonol compound
08/18/2004CN1521746A Novel optical disc and mating instrument
08/18/2004CN1521745A Multiple wavelength multi-level read only optical disc using photochromic materials
08/18/2004CN1521744A Optical disc with edges
08/18/2004CN1521743A Optical recording medium dye and optical recording medium using same
08/18/2004CN1521742A Optical pick-up device
08/18/2004CN1521741A Optical pick-up device using all-reflecting condenser
08/18/2004CN1521740A Optical pick-up device
08/18/2004CN1521739A Driving device for optical pick-up head and coupling device thereof
08/18/2004CN1521738A High density recording method for optical recording medium
08/18/2004CN1521737A Search method of continuous recordable address for optical record medium
08/18/2004CN1521736A Recordable multi-layer disc
08/18/2004CN1521735A Information-recording method and information-recording medium
08/18/2004CN1521156A High density compact disc and its recording compound
08/18/2004CN1163067C Apparatus for video CD (compact disc)
08/18/2004CN1163066C Recording and/or reproduction apparatus and method for optical recording media
08/18/2004CN1162861C Apparatus and method for recording data on predetermined recording medium
08/18/2004CN1162860C Air supporting slide block for CD driver
08/18/2004CN1162857C Digital multipurpose disc voice frequency disc of storage voice frequency and reproducing device
08/18/2004CN1162856C Signal processing circuits
08/18/2004CN1162855C Method for forming thin wall member
08/18/2004CN1162854C Optical disk satisfying plural standards
08/18/2004CN1162853C Integrated optical component and optical pickup device
08/18/2004CN1162852C Optical head device and its light receiving method
08/18/2004CN1162851C Objective glass, reproducing apparatus and method thereof
08/18/2004CN1162850C Adaptive writing method for high density optical recording medium
08/18/2004CN1162849C Optical head device compatible with optical recording medium with different thickness
08/18/2004CN1162848C Optical picking up device and CD driving device
08/18/2004CN1162847C Cyclic track servo system and method for CD drive
08/18/2004CN1162846C Radial-inclined detector and detecting method
08/18/2004CN1162845C Servo controlling apparatus, servo controlling method and information representing apparatus
08/18/2004CN1162844C Method and device for detecting laser spot moving direction in CD record/reproduction device
08/18/2004CN1162843C Apparatus for reading and / or writing data from recording medium having a plurality of signal recording surface
08/18/2004CN1162842C Optical record method
08/18/2004CN1162779C Address information recording/recovering method and optical record-playback apparatus
08/17/2004US6779189 Optical disk changer
08/17/2004US6778969 Method and apparatus for encrypting and recording received content information on a recording medium using both medium identification information and a cipher key for encryption
08/17/2004US6778570 Laser driving apparatus and method
08/17/2004US6778568 Semiconductor module and method of mounting semiconductor laser element on the same
08/17/2004US6778486 Laser module, optical head and optical information recording and reproducing apparatus
08/17/2004US6778485 Optical storage device having liquid crystal layers varying light in phase between 0 and π
08/17/2004US6778482 Moving position detecting apparatus of a mobile element and a disk apparatus using the same
08/17/2004US6778479 Media recognition control method for optical types
08/17/2004US6778478 Optical disk recording apparatus and method of recording data on optical disk
08/17/2004US6778477 Reproduction power control method, reproduction power control device, and record reproducing device incorporating the same
08/17/2004US6778476 Information playback apparatus
08/17/2004US6778475 Optical detector, optical pickup and optical information reproducing apparatus using optical pickup for detecting at least three light beams separated from one or more light sources
08/17/2004US6778474 Optical pickup device, optical disc apparatus and method of detecting track discrimination signal
08/17/2004US6778473 Optical disk recording and/or reproducing apparatus and access method