| 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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| 10/05/1994 | EP0618582A2 Information processing apparatus |
| 10/05/1994 | EP0618571A1 Optical disk apparatus |
| 10/05/1994 | EP0618570A1 Apparatus for recording and/or reading information by means of a radiation beam |
| 10/05/1994 | EP0618569A1 Focusing servo system and focus servo acquisition enable method |
| 10/05/1994 | EP0617830A1 Information recording method and apparatus |
| 10/05/1994 | EP0617801A1 Digital sound system for motion pictures with analog sound track emulation |
| 10/05/1994 | CN2178931Y Automatic cleaning device for digit interrogatory recording disk surface |
| 10/05/1994 | CN1093192A Optical disc regenerating apparatus |
| 10/04/1994 | US5353277 Optical disk having intertrack heat conduction suppression |
| 10/04/1994 | US5353274 Beam diameter expansion of a multi-beam optical information system |
| 10/04/1994 | US5353273 Multi-channel optical head and data storage system |
| 10/04/1994 | US5353272 Apparatus and method for a modified half-aperture focus/tracking/data sensor system |
| 10/04/1994 | US5353271 Method and apparatus for recording or reproducing information on or from recording medium |
| 10/04/1994 | US5353270 Writable optical disk recording apparatus |
| 10/04/1994 | US5353267 Magneto-optical light detector apparatus |
| 10/04/1994 | US5353247 Optical mass storage system and memory cell incorporated therein |
| 10/04/1994 | US5352881 Focus control device in optical recording and reproducing apparatus having an optical-beam-position judging device |
| 10/04/1994 | US5352880 Optical card having a mirror section with a pair of auxiliary guide tracks |
| 10/04/1994 | US5352551 Optical recording media; solid organic solvent decomposes or vaporizes due to laser beam able to change its absorption spectrum and/or photoconductivity |
| 10/04/1994 | CA2008593C Laser optical pickup apparatus |
| 10/04/1994 | CA1332211C Volume phase reflection holograms and methods for fabricating them |
| 09/29/1994 | WO1994022138A1 Compatible recording and/or playback device |
| 09/29/1994 | WO1994019166A3 Changing device for manufacturiing information carriers by injection moulding |
| 09/28/1994 | EP0617424A1 Head system suitable for magnetic or optical high-density recording devices |
| 09/28/1994 | EP0617420A1 Optical head |
| 09/28/1994 | EP0617419A1 Biaxial actuator for optical pickup |
| 09/28/1994 | EP0617418A1 Biaxial actuator |
| 09/28/1994 | EP0617417A2 Apparatus for driving objective lens |
| 09/28/1994 | EP0617416A1 Information processing apparatus |
| 09/28/1994 | EP0617415A2 Apparatus for recording/reproducing information in a card |
| 09/28/1994 | EP0617411A2 Methods for making damped load beams |
| 09/28/1994 | EP0616719A1 Buffering method and system for resonant scanner |
| 09/28/1994 | EP0616718A1 Optical scanning device. |
| 09/28/1994 | EP0426879B1 Optical recording and/or reproducing apparatus |
| 09/28/1994 | EP0422227B1 Optical disc recording/reproducing apparatus |
| 09/28/1994 | CN2178376Y Tilt adjuster for pickup of laser disc |
| 09/28/1994 | CN1092742A Fluorated carbon article, production and application of same |
| 09/28/1994 | CN1026006C Production of transparent polymer used in optical articles |
| 09/27/1994 | US5351264 Optical apparatus for emitting light and automatic adjustment apparatus therefor |
| 09/27/1994 | US5351231 Programmable mark detection and windowing for optical disk controllers |
| 09/27/1994 | US5351230 Optical information system focal point displacement detecting means having Fresnel zone plates with rectilinear grating |
| 09/27/1994 | US5351229 Tribo-attractive contact slider for an optical read/write system |
| 09/27/1994 | US5351227 Optical recording/reproducing apparatus in which data will not become unable to be read out in case an SDL fails to be renewed |
| 09/27/1994 | US5351226 Method and apparatus for reproducing information from a recordable optical disc regardless of whether an index area is detected as being present on the disk and a method of generating index information during reproduction of the information on the disk |
| 09/27/1994 | US5351225 Optical recording and reproducing apparatus having a plurality of light spots |
| 09/27/1994 | US5351224 Adjustment of tracking servo and focusing servo in optical data recording/reproducing apparatus |
| 09/27/1994 | US5351223 Tracking induction system and method for optical disc drivers |
| 09/27/1994 | US5351222 Disk storage apparatus including a single power supply hysteresis comparator having a symmetrical characteristic |
| 09/27/1994 | US5351132 Method of recording and reproducing information on a video disk utilizing table of contents data |
| 09/27/1994 | US5350917 Opto-magnetic recording polarization optical apparatus including a laser diode and a light absorbing film |
| 09/27/1994 | US5350916 Optoelectronic device and method of manufacturing same with an electrically insulating medium having a strip-shaped flexible foil |
| 09/27/1994 | US5350843 Halogenated phthalocyanine compound, method for preparing same |
| 09/27/1994 | US5350790 Aromatic carboxylic acid |
| 09/27/1994 | CA2012513C Write control method and apparatus for writing optical disk data |
| 09/27/1994 | CA1332200C Non-linear optical active diols and polyurethanes prepared therefrom |
| 09/21/1994 | EP0616327A1 Information recording device |
| 09/21/1994 | EP0616323A2 Digital recording and/or reproducing apparatus |
| 09/21/1994 | EP0615631A1 Motion picture digital sound system and method with primary sound storage edit capability. |
| 09/20/1994 | US5349592 Super-resolution optical element for use in image forming apparatus |
| 09/20/1994 | US5349577 Optical record medium including data record region and directory record region and method of managing file data |
| 09/20/1994 | US5349471 Hybrid refractive/diffractive achromatic lens for optical data storage systems |
| 09/20/1994 | US5349175 Focus sensing apparatus using electrical AGC to enhance differential focus error signal |
| 09/20/1994 | US5348841 Organic dye-in-polymer (DIP) medium for write-once-read-many (WORM) optical discs |
| 09/20/1994 | US5348840 Optical recording medium |
| 09/20/1994 | US5348783 Optical information recording medium |
| 09/20/1994 | CA2013385C Optical/magnetic composite head having magnetic and optical heads in one integrated unit |
| 09/20/1994 | CA2006806C Track counter for optical disk |
| 09/15/1994 | WO1994020502A1 Spiropyran compound, optically active spiropyran compound, and use thereof |
| 09/15/1994 | WO1994020288A1 Mould for manufacturing disc-shaped information carriers |
| 09/14/1994 | EP0615243A1 Offset amount measuring apparatus |
| 09/14/1994 | EP0615242A2 Apparatus for and method of recording signals onto a disk medium |
| 09/14/1994 | EP0615234A2 Infrared-sensitive liquid-crystalline polyesters suitable for use in optical data storage, processes for the preparation of same, and an apparatus containing an infrared-sensitive liquid-crystalline polyester |
| 09/14/1994 | EP0615233A1 Recordable optical element having a leuco dye |
| 09/14/1994 | EP0615232A1 Optical recording and reading device |
| 09/14/1994 | EP0595999A4 Method for three-dimensional optical storage and retrieval of data |
| 09/14/1994 | EP0485404B1 Optical scanning device |
| 09/14/1994 | EP0485403B1 Mount for an optical element |
| 09/14/1994 | EP0381768B1 Laser diode driving apparatus |
| 09/13/1994 | US5347510 Method of manufacturing a master plate where its guide groove has an inclined angle |
| 09/13/1994 | US5347509 Recovering digital information represented by multi-dimensionally encoded symbols carried by an information storage medium |
| 09/13/1994 | US5347508 Optical information storage disk for use with electronic article surveillance systems |
| 09/13/1994 | US5347506 Optical disk player including a plurality of independent pick-ups |
| 09/13/1994 | US5347505 Optical medium recording method and apparatus employing pulse width delay and/or advancement |
| 09/13/1994 | US5347504 Optical disk apparatus for optically recording or reproducing information on an optical recording medium |
| 09/13/1994 | US5347503 Optical information processing apparatus for correcting linearity of a photosensor output with respect to power of an emitted light beam |
| 09/13/1994 | US5347502 Focusing control system for use in an information recording and reproducing apparatus |
| 09/13/1994 | US5347501 Servo apparatus of an optical disc having calibration for gain control |
| 09/13/1994 | US5347500 Compact optical pickup head with tracking error signal generator |
| 09/13/1994 | US5347297 Apparatus and method for optimizing performance in an optical storage system read/write head |
| 09/13/1994 | US5347207 Disc shaped recording medium having a zero track address and multibit opposite polarity track addresses and an address discrimination circuit for reading such recording medium |
| 09/13/1994 | US5346789 Oriented biological material for optical information storage and processing |
| 09/13/1994 | US5346740 Optical information recording medium |
| 09/13/1994 | US5346654 Mehod of forming indicia on compact disks and indicia-bearing compact disks |
| 09/13/1994 | CA1332003C Optical information reproducing apparatus |
| 09/08/1994 | DE4306248A1 Compensating actuator control |
| 09/07/1994 | EP0614176A1 Optical disk reproducing method and apparatus |
| 09/07/1994 | EP0614098A2 Optical device |
| 09/07/1994 | EP0613413A1 Process and device for mechanically removing a layer from the substrate material of a disk-shaped information carrier. |
| 09/07/1994 | EP0276326B1 Optical disc recording/reproducing apparatus |
| 09/07/1994 | CN1091852A A device for manufacturing a mould for a disc-shaped registration carrier |