| 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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| 03/23/1988 | EP0260569A2 Optical pick-up device |
| 03/23/1988 | EP0260488A1 High speed track access for optical disks using acousto-optic deflector |
| 03/23/1988 | EP0260420A2 Precision measurement and positioning system for disk storage system |
| 03/23/1988 | EP0260327A1 Optical memorization device |
| 03/22/1988 | US4733277 Apparatus for reproducing information from an optical disk |
| 03/22/1988 | US4733067 Semiconductor laser apparatus for optical head |
| 03/22/1988 | US4733066 Device for controlling the movement of a focal point of a light beam used for detecting recorded information |
| 03/22/1988 | US4733065 Optical head device with diffraction grating for separating a light beam incident on an optical recording medium from a light beam reflected therefrom |
| 03/22/1988 | US4732844 Photoresists, optical recording media |
| 03/22/1988 | US4732783 Cyano quinodimethane multilayer media |
| 03/16/1988 | EP0260115A2 Information record method |
| 03/16/1988 | EP0259913A2 Driving signal for coarse servo employing sampled offset signal |
| 03/16/1988 | EP0259860A2 Integrated optic disc pickup |
| 03/16/1988 | EP0259832A2 Optical head |
| 03/16/1988 | EP0259753A2 Mixtures of thermoplastic polycarbonates and thermoplastic styrene-maleic anhydride copolymers, and their use as substrates in optical data memories |
| 03/16/1988 | EP0259666A1 Information recording disc with composite index codes and its playback method |
| 03/16/1988 | EP0259505A1 Optical transducer for stereo optical soundtrack in cinematographic films |
| 03/15/1988 | US4731780 Optical recording element |
| 03/15/1988 | US4731778 Electro-magnetic drive unit comprising a pivotable armature |
| 03/15/1988 | US4731777 Optical disk player |
| 03/15/1988 | US4731774 Disc playback apparatus |
| 03/15/1988 | US4731773 Thermally-induced recording with reduced harmonic distortion |
| 03/15/1988 | US4731772 Optical head using hologram lens for both beam splitting and focus error detection functions |
| 03/15/1988 | US4731771 Tracking servo setting method and apparatus |
| 03/15/1988 | US4731755 Thermal design for reversible phase change optical storage media |
| 03/15/1988 | US4731754 Erasable optical memory material from a ferroelectric polymer |
| 03/15/1988 | US4731620 Lasers, adhesive of chlorinated polyolefin |
| 03/15/1988 | US4731527 An astigmatic focusing system with optical elements oriented to produce astigmatism in a predetermined direction to maximize detector sensitivity |
| 03/15/1988 | US4731013 Injection molding apparatus for the injection molding of data storage discs |
| 03/15/1988 | US4730899 Optical signal reading device |
| 03/10/1988 | WO1988001785A1 A disc device and a disc-like recording medium |
| 03/10/1988 | WO1988001784A1 Focal spot position detector of an optical data recording/reproducing apparatus |
| 03/10/1988 | WO1988001564A1 System for manipulating and transporting unprocessed compact discs or similar |
| 03/10/1988 | DE3629045A1 Handhabungs- und foerdereinrichtung fuer compact-disk-rohlinge o.dgl. Handling and foerdereinrichtung for compact-disk blanks or the like. |
| 03/09/1988 | EP0259151A2 Optical card and process for producing it |
| 03/09/1988 | EP0259148A2 Focus detector |
| 03/09/1988 | EP0258932A2 Optically readable disc-shaped information carrier |
| 03/09/1988 | EP0258890A2 Optical pickup apparatus |
| 03/09/1988 | EP0258461A1 Optical information carrier and method for erasing the information of the same |
| 03/09/1988 | EP0258460A1 Method and optical memorization device for recording and erasing of information on an optical carrier |
| 03/09/1988 | EP0258459A1 Optical information medium |
| 03/09/1988 | EP0258450A1 Device for detecting focus |
| 03/09/1988 | EP0144445B1 Apparatus for driving objective lens of optical disc player |
| 03/08/1988 | US4730298 Moving device for an optical recording system in a high density spiral track-forming apparatus |
| 03/08/1988 | US4730297 Retardation compensating light beam guiding system in an optical storage medium drive apparatus |
| 03/08/1988 | US4730295 Apparatus for reading and/or recording a trackwise arranged optical information structure |
| 03/08/1988 | US4730294 Optical information-recording/reproducing apparatus with cancellation for offset contained in error signal |
| 03/08/1988 | US4730293 Dual beam optical data system |
| 03/08/1988 | US4730290 Defect detecting optical apparatus enabling recording in an alternate sector or track |
| 03/08/1988 | US4730289 Magnetic-optical disc memory system and apparatus for switching header and data information |
| 03/08/1988 | US4730227 Disk file actuator with combined carriage rail and isolator mount for drive magnet |
| 03/08/1988 | US4729940 Method of manufacturing master for optical information carrier |
| 03/08/1988 | US4729938 Optical disc base plate having a primer layer formed of an ultraviolet-cured resin composition |
| 03/08/1988 | CA1233904A1 Power control for optical disc recorder |
| 03/02/1988 | EP0258104A1 Method of determining and of modifying a partition in a memory space of a non-erasable carrier |
| 03/02/1988 | EP0257703A2 Optical disk and optical disk drive |
| 03/02/1988 | EP0257595A2 Optical recording medium |
| 03/02/1988 | EP0257594A2 Write-once data writing system for optical recording medium |
| 03/02/1988 | EP0257215A2 Optical recording medium |
| 03/01/1988 | US4729039 Method and device for producing full tone images from a video input |
| 03/01/1988 | US4728724 Optical data storage medium comprising a chromophore/polymer information layer |
| 03/01/1988 | US4728188 Light source degeradation detecting apparatus for laser device |
| 03/01/1988 | CA1233504A1 Driver circuit for laser diode |
| 02/24/1988 | EP0256827A2 Apparatus for recording and reproducing data into/from an optical disc |
| 02/24/1988 | EP0256807A2 Optical recording card and method of reading the same |
| 02/24/1988 | EP0256685A2 Optical system and components for optical disk reader |
| 02/24/1988 | EP0256554A2 Plastic substrate for optical memory card or disk |
| 02/24/1988 | EP0256143A1 Method of erasing information |
| 02/24/1988 | EP0256110A1 Apparatus and method for increasing storage capacity of recording media. |
| 02/23/1988 | US4727589 Picture data storage/retrieval system |
| 02/23/1988 | US4727533 Optical data storage and retrieval apparatus |
| 02/23/1988 | US4727532 Method and apparatus for recovering information from a videodisc |
| 02/23/1988 | US4727531 Information recording system |
| 02/23/1988 | US4727529 Pickup unit for use in an optical information record/reproduce system |
| 02/23/1988 | US4727528 Optical media tracking method and apparatus for optical storage system |
| 02/23/1988 | US4727417 Endoscope video apparatus |
| 02/23/1988 | US4726858 Alloy with different spectral reflectances |
| 02/16/1988 | US4726008 Optical disk assembly |
| 02/16/1988 | US4726007 Compact disc damper and method |
| 02/16/1988 | US4726006 Disc-shaped information carrier and method of manufacturing it |
| 02/16/1988 | US4726004 Optical information recording and reproducing apparatus with tracking servo system |
| 02/16/1988 | US4725725 For focusing a light beam onto an information recording layer |
| 02/16/1988 | US4725721 Autofocusing control system |
| 02/16/1988 | US4725525 Recording information media comprising chromophores |
| 02/16/1988 | US4725502 Corrosion resistance |
| 02/16/1988 | CA1232967A1 Optically readable, high storage density, information carrier |
| 02/16/1988 | CA1232966A1 Focus control for optical disc system |
| 02/11/1988 | WO1988001092A1 Optical disc recording/reproducing apparatus |
| 02/11/1988 | WO1988001069A1 Method and apparatus for reading data with ccd area arrays |
| 02/11/1988 | DE3724836A1 Optisches aufzeichnungsmedium An optical recording medium |
| 02/11/1988 | DE3724819A1 Optisches aufzeichnungsmedium An optical recording medium |
| 02/10/1988 | EP0255649A2 Information signal recording device |
| 02/10/1988 | EP0255643A2 Metal complex compound useful as a near infrared absorber |
| 02/09/1988 | US4724533 Optical head |
| 02/09/1988 | US4724444 Data storage medium |
| 02/09/1988 | US4724043 Process for forming a master mold for optical storage disks |
| 02/09/1988 | US4723903 Stamper for replicating high-density data recording disks |
| 02/04/1988 | DE3724981A1 Optischer informationsaufzeichnungstraeger Optical informationsaufzeichnungstraeger |
| 02/03/1988 | EP0255403A2 Tracking servo device for optical storage disk |
| 02/03/1988 | EP0255305A2 Focusing error detecting device and method of manufacturing the same |