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) |
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07/13/1994 | EP0605891A2 Recordable optical element using low absorption materials |
07/13/1994 | EP0535157A4 Method and apparatus for storing text data in subcode packs |
07/13/1994 | CN1089365A Waveform shaping method and apparatus for optical recording |
07/12/1994 | US5329517 Optical information recording and reproducing apparatus utilizing a plurality of recording light spots |
07/12/1994 | US5329512 Temperature detection of a magneto-optic recording medium for controlling irradiation of an erasure region |
07/12/1994 | US5329511 Optical head cleaning cartridge |
07/12/1994 | US5329509 Optical disk unit |
07/12/1994 | US5329508 Regenerating device for optical recording medium in which overlapping regions are read out by a light beam in a time sharing manner to provide servo control of the positional relationship between the light beam and the medium |
07/12/1994 | US5329507 Solid state optical disk reader |
07/12/1994 | US5328994 Azinoneutromethines |
07/12/1994 | US5328816 Process for producing optical recording medium |
07/12/1994 | US5328813 Method for the preparation of optical recording media containing overcoat |
07/12/1994 | US5328802 Multilayer containing a cyanine dye and metal complex quencher |
07/12/1994 | US5328741 Optical recording medium |
07/12/1994 | US5328740 Magneto-optical recording medium and method for processing the surface |
07/07/1994 | WO1994015334A1 Data recording medium, recorder, reader and recording method |
07/07/1994 | WO1994015333A1 Waveform shaping method and apparatus for optical recording |
07/07/1994 | WO1994015319A1 Identity card with a visible authenticating mark and a process for manufacturing the same |
07/07/1994 | WO1994014998A1 Protective film for articles and method |
07/06/1994 | EP0605239A1 Information recording and/or reproducing apparatus |
07/06/1994 | EP0605222A1 Disc data reproducing apparatus and signal processing circuit |
07/06/1994 | EP0605125A2 Two-sided optical disks and devices for using the disks |
07/06/1994 | EP0605025A1 Injection moulding or injection-compression moulding machine |
07/06/1994 | EP0604517A1 Recovering audio signals from a variable-area optical record. |
07/06/1994 | EP0604424A1 Vapour deposition. |
07/06/1994 | CN1089051A Unit for driving of objective |
07/05/1994 | US5327417 Optical disk drive and read/write apparatus |
07/05/1994 | US5327416 Surface selection mechanism for optical storage system |
07/05/1994 | US5327414 Signal recording method for optical disk and apparatus therefor |
07/05/1994 | US5327413 Ruggedized homogeneous thin dielectric film focus sensor |
07/05/1994 | US5327411 Write control method and apparatus for writing optical disk data |
07/05/1994 | US5327410 Direction-determination logic as for a signal pickup in recorded signal recovery apparatus |
07/05/1994 | US5327408 Optical disk with sector servo patterns compensating for variations in pattern size and/or radial velocity |
07/05/1994 | US5327407 Tracking control apparatus for generating sawtooth tracking control signal from sinusoidal tracking error signal |
07/05/1994 | US5327406 Data recording method and data recording medium |
07/05/1994 | US5327182 Method and apparatus for reading photographically recorded digital audio soundtracks |
07/05/1994 | US5327124 Method of secondary modulation of a train of recorded data |
07/05/1994 | US5326679 Light absorbing layer having cyanine dyes and quencher compounds |
07/05/1994 | US5326678 Nonionic dye |
07/05/1994 | US5326677 Optical retrieval apparatus using a tellurium (IV) leuco dye |
07/05/1994 | US5326676 Indoaniline |
07/05/1994 | US5326661 Polysiloxanes, polysilanes, addition polymers with pendant groups |
07/05/1994 | US5326660 Erasable optical recording media |
07/05/1994 | US5326240 Metal mold device for molding a disc substrate |
07/05/1994 | CA1330591C Recording system as well as record carrier and recording apparatus for use in the system |
07/05/1994 | CA1330495C Opto-electronic focussing-error detection system |
06/30/1994 | DE4344932A1 Disc appts., e.g. for CD or mini=disc |
06/29/1994 | EP0604335A1 Athermalized beam source and collimator lens assembly |
06/29/1994 | EP0604328A1 Passively athermalized optical assembly incorporating laminate fiber compensation ring |
06/29/1994 | EP0604063A2 Optical information reproduction apparatus and optical information reproduction method |
06/29/1994 | EP0603968A1 Focus offset optimization for reading optically recorded data |
06/29/1994 | EP0603949A1 Data recorder with segment synchronization |
06/29/1994 | EP0603842A1 Optical recording device and optical reproduction device |
06/29/1994 | EP0603779A1 Optical recording medium |
06/29/1994 | EP0603685A2 Recording system for a singalong disc player |
06/29/1994 | EP0603458A1 Optical head assembly for optical information player |
06/29/1994 | EP0603274A1 Optical elements and a method of producing them |
06/29/1994 | EP0544731B1 Optical scanning device |
06/29/1994 | EP0494879B1 Coil arrangement for a focussing or track control circuit |
06/29/1994 | EP0294489B1 Optical disc and optical disc unit |
06/29/1994 | CN1088593A Process for the preparation of polycarbonates |
06/29/1994 | CN1025255C Disc shape recording medium and apparatus of recording and playing |
06/28/1994 | US5325353 Optical recording medium |
06/28/1994 | US5325352 Recording of mastering information for performing a disc mastering process |
06/28/1994 | US5325351 Optical recording medium having a reflective layer made of Cu-Ag or Cu-Au alloy |
06/28/1994 | US5325348 Wavelength converting element and system for recording and reproducing optical information |
06/28/1994 | US5325347 Data recording method and data reproducing apparatus with contiguous data recording |
06/28/1994 | US5325346 Digital servo apparatus for optical disc player |
06/28/1994 | US5325342 Surface-enhanced raman optical data storage system |
06/28/1994 | US5325324 Three-dimensional optical memory |
06/28/1994 | US5325116 Device for writing to and reading from optical storage media |
06/28/1994 | US5324926 Optical card having alternative information record region |
06/28/1994 | US5324548 Method for making optical recording mediums |
06/28/1994 | US5324188 Roller stamper for molding a substrate sheet to become an information recording medium |
06/28/1994 | US5324087 Sucked substrate detecting apparatus |
06/28/1994 | CA1330464C Active energy ray-curable composition and optical recording medium having cured product of the composition |
06/28/1994 | CA1330435C Substituted phthalocyanine |
06/26/1994 | CA2111646A1 Optical recording medium |
06/23/1994 | WO1994014161A1 Protective covers for optical discs |
06/23/1994 | WO1994014159A1 Disk recording medium and reproduction method and apparatus thereof |
06/23/1994 | WO1994014092A1 Methods and devices for using photorefractive materials at infrared wavelengths |
06/23/1994 | DE4243234A1 Recording and reproduction appts., e.g. CD player |
06/22/1994 | EP0603171A2 Apparatus and method for recording information on an optical recording medium |
06/22/1994 | EP0603168A2 System for recording digital data |
06/22/1994 | EP0602720A1 Scanning device and optical player comprising the scanning device |
06/22/1994 | EP0602677A2 Magnet-optical disc drive device |
06/22/1994 | EP0548120B1 Process and device for adjusting radial and tangential angles of light beams |
06/22/1994 | EP0485448B1 Magneto-optical recording and/or reproducing device |
06/22/1994 | CN1088342A Disk recording medium and reproducing method and apparatus thereof |
06/22/1994 | CA2085974A1 Multi-bit cellular reflectivity modulation for optical media |
06/21/1994 | US5323380 Information recording disc and system |
06/21/1994 | US5323378 Compact optical pickup |
06/21/1994 | US5323374 Method of magneto-optical recording |
06/21/1994 | US5323373 Optical pickup device |
06/21/1994 | US5323372 Method of optical writing and reading on information carrier with high density storage |
06/21/1994 | US5323369 Objective lens driving apparatus designed to minimize rolling effects of an optical pick-up |
06/21/1994 | US5323368 Track crossing apparatus and method using the difference between pick-up velocity and a predetermined velocity |
06/21/1994 | US5323365 Recording method for opto-magnetic disk |
06/21/1994 | US5322993 Tilt-error detector |
06/21/1994 | US5322900 Polystyrene and ethyl methacrylate homo- or copolymer |