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)
10/1999
10/12/1999US5966363 Optical and magneto-optic data storage systems utilizing transmissive media
10/12/1999US5966362 Optical system for recording and reproducing for use in optical information recording medium
10/12/1999US5966361 Spinning disc volume holographic memory
10/12/1999US5966360 Cleaning disc cartridge
10/12/1999US5966358 Signal recording apparatus and signal recording method
10/12/1999US5966357 Disk discrimination method for digital versatile disk system
10/12/1999US5966356 Optimum slice level signal reading apparatus for optical disk
10/12/1999US5966355 Focus servo pull-in apparatus for use in a compatible disk player
10/12/1999US5966354 Drive apparatus for objective lens
10/12/1999US5966353 Optical storage device made thinner by substituting electrical means for capabilities of sensors
10/12/1999US5966347 Apparatus and method for reproducing data from a magneto-optic recording medium
10/12/1999US5965323 Method for preparing optical recording medium
10/12/1999US5965286 Magneto-optical recording medium
10/12/1999US5965229 Optical recording medium
10/12/1999US5965228 Information carrier, method for producing same
10/12/1999CA2034288C Disc cartridge for cleaning an objective lens
10/07/1999WO1999050844A1 Optical data storage system utilizing polarization maintaining optical fiber
10/07/1999WO1999050843A1 Optical data storage system with means for reducing noise from spurious reflections
10/07/1999WO1999050842A1 Low-birefringence optical fiber for use in an optical data storage system
10/07/1999WO1999050841A1 Low noise optical storage system based on an optical polarimetric delay line
10/07/1999WO1999050692A1 Polarizing diffraction grating and magneto-optical head made by using the same
10/07/1999WO1999050368A1 Radiation curable adhesive for digital versatile disc
10/07/1999WO1999037013A9 Optical microswitch having electrostatic microactuator and method for use thereof
10/07/1999WO1999031531A3 Scatter noise reduction in holographic storage systems by speckle averaging
10/07/1999WO1999026236A9 Method for thermal crosstalk control on optical media
10/07/1999DE19902632A1 High density optical recording disc, such as compact disc, digital versatile disc or computer CD-ROM
10/07/1999DE19814777A1 Optische Abtasteinrichtung mit verbesserter Ansprechcharakteristik Optical scanning device with improved response
10/06/1999EP0948204A2 Method for preventing unauthorised copying of images
10/06/1999EP0948155A2 Amplitude multiplexing of digital signals
10/06/1999EP0947985A1 Optical recording element with an interfacial layer between the recording layer and the reflecting layer
10/06/1999EP0947984A2 Method and apparatus for manufacturing information storage devices
10/06/1999EP0947983A2 Swing arm driving type optical recording/reproducing apparatus
10/06/1999EP0947538A2 Optical molding material
10/06/1999EP0947351A1 Memory member
10/06/1999EP0947336A2 Image recording apparatus
10/06/1999EP0946941A1 Complex polymethine dyes and their use
10/06/1999EP0946940A1 Cd-rom drive
10/06/1999EP0946781A1 Vacuum treatment equipment
10/06/1999EP0946780A1 Vacuum treatment equipment
10/06/1999CN2342439Y Damping fixer for reading mechanism of optic disc machine
10/06/1999CN2342438Y High rotary speed optic disc driver with shock-proof device
10/06/1999CN1231052A Optical pickup device
10/06/1999CN1230747A Multiple data surface data storage system and method
10/06/1999CN1230746A Apparatus and method for controlling power of laser diode in optical recording media
10/06/1999CN1230745A Optical disc recording apparatus and method for improving characteristics of cross erasure
10/06/1999CN1230733A Apparatus and method for degrading quality of unauthorized copies of color images and video sequences
10/05/1999US5963705 Disk detecting device and method
10/05/1999US5963704 Recording medium, apparatus and method for recording data on the recording medium, apparatus and method for reproducing data from the recording medium
10/05/1999US5963569 Multiple channel acousto-optic modulators
10/05/1999US5963536 Copy count protection structure for optical recording medium and method for same
10/05/1999US5963535 Disk reproducing apparatus
10/05/1999US5963532 Optical system
10/05/1999US5963531 Optical head apparatus
10/05/1999US5963530 CD recording device with auxillary input
10/05/1999US5963525 Process for reading information
10/05/1999US5963524 Optical disk apparatus
10/05/1999US5963523 Optical recording medium discriminating apparatus using laser beams of different wavelengths
10/05/1999US5963522 Optical disk device and method for detecting and replacing a defective sector within a block containing recording data and error correction data on an optical disk
10/05/1999US5963521 Recording and/or reproducing method and apparatus with dubbing mode
10/05/1999US5963520 Method and apparatus for high speed data recovery from CD-ROMS or like disks or varying qualities
10/05/1999US5963519 Information recording method and apparatus
10/05/1999US5963518 Apparatus for reproducing digital signal
10/05/1999US5963517 Disk reproducing speed control method and a disk reproducing apparatus using the same
10/05/1999US5963516 Tracking control apparatus of optical disc apparatus and method of same
10/05/1999US5963515 Optical pickup device for detecting a tracking error of a main spot on an optical disk
10/05/1999US5963346 Scatter noise reduction in holographic storage systems by two-step write
10/05/1999US5963154 In a video decoding and decompression system
10/05/1999US5962874 Light emitting diode array and optical image forming apparatus with light emitting diode array
10/05/1999US5962657 Complex polymethine dyes and their use
10/05/1999US5962181 Process for the preparation of a metal heat mode recording element
10/05/1999US5962100 Optical information recording medium
10/05/1999US5961898 Molding apparatus and molding method for light-permeable articles
10/05/1999US5961777 Apparatus for manufacturing bonded disks
10/05/1999CA2016558C Optical disk reproducing apparatus
10/05/1999CA2009023C Optical disk recording/reproducing apparatus and its disk rotary driving apparatus
10/05/1999CA2002381C Optical pickup device
09/1999
09/30/1999WO1999049469A1 Optical data storage
09/30/1999WO1999049463A1 Near-field optical head
09/30/1999WO1999049462A1 Near-field optical head
09/30/1999WO1999049461A1 Optical pickup dust-proofing structure
09/30/1999WO1999049460A2 Optical scanning unit comprising a first and a second lens unit
09/30/1999WO1999049459A1 Recording apparatus
09/30/1999WO1999049458A1 Dual format optical disc
09/30/1999WO1999049455A2 Integrated micro-optical systems
09/30/1999WO1999048844A1 Process of preparing discotic liquid crystalline compounds
09/30/1999WO1999026241A9 Method for producing an optical data medium with digital information and a hologram
09/30/1999DE19913336A1 New near infrared absorbing polyazo compounds used e.g. in recording media, photoconductors, filters, transducers or screens
09/30/1999CA2333266A1 Optical data storage
09/29/1999EP0945871A2 Volume holographic memory-based optical information- recording/reproducing apparatus
09/29/1999EP0945870A2 Volume holographic memory-based optical information-recording/reproducing apparatus
09/29/1999EP0945866A2 Pre-pit detecting apparatus
09/29/1999EP0945863A2 Record information reproducing method with content identifiers
09/29/1999EP0945860A2 Optical information recording medium and method for recording and reproducing information thereon
09/29/1999EP0945859A2 Optical head, method for fabricating an optical head, and apparatus for fabricating an optical head
09/29/1999EP0944899A1 Double-bond shifts of substituted (4n)-annulenes for information storage and data processing
09/29/1999EP0944479A1 Use of hydride-containing aluminium oxide for producing optically detectable markings and inscriptions
09/29/1999EP0569412B1 Track control circuit
09/29/1999CN1230278A Floating optic head with dynamic mirror
09/29/1999CN1229980A Optical recording medium, and method of manufacturing same
09/29/1999CN1229979A Objective lens driving device and optical pickup device employing objective lens driving device