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)
11/2000
11/02/2000EP1049085A2 Optical device
11/02/2000EP1049084A2 Compound objective lens having two focal points and apparatus using the lens
11/02/2000EP1049083A1 Apparatus for reading from or writing to optical recording media
11/02/2000EP1049082A2 Seek control method in optical storage device
11/02/2000EP1049081A2 Disc drive unit
11/02/2000EP1049080A1 Device and method for information recording/reproducing using near-field light
11/02/2000EP1049079A1 Optical disk, optical disk device and optical disk recording method
11/02/2000EP1049078A2 Reproduction apparatus for optical disk
11/02/2000EP1048684A1 Process for producing polycarbonate and optical-disk substrate
11/02/2000EP1047507A1 Process and device for coating disks
11/02/2000DE19919764A1 Herstellung eienr Preßform für Compact Discs Also one mold for manufacturing compact discs
11/02/2000DE19918801A1 Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger Device for reading from or writing to optical recording media
11/02/2000DE10020624A1 Optical disc has sectors with two address regions, data region, clock signal regions arranged discretely along tangential direction of recording tracks; each sector is divided into segments
11/02/2000DE10020622A1 Optical sensor which produces a micro-spot beam on data recording carrier for recording optical information with high density in order to record larger quantities of data
11/02/2000DE10010521A1 Compact disk production apparatus has conveyor with arm, which moves disk between stockers and recorder, printer
11/02/2000CA2371334A1 Disk recording medium, reproduction device and method for performing reproduction on disk recording medium
11/02/2000CA2370836A1 Optical recording media having increased erasability
11/01/2000CN1272210A Optical disk, reproduction apparatus, and reproduction method
11/01/2000CN1272209A Optical disk, reproduction apparatus, and reproduction method
11/01/2000CN1272208A Storage card and device
11/01/2000CN1272206A Device for reading or writing on optical recording media with disk type recognition means
11/01/2000CN1272204A Optical recording medium
11/01/2000CN1272203A Improved adhesion of amorphous saturated hydrocarbon thermoplastic substrates
11/01/2000CN1271933A Optical device
11/01/2000CN1271932A Photo collecting device
11/01/2000CN1271931A Light head device
11/01/2000CN1271930A Read or wright photo record medium equipment
11/01/2000CN1271929A Disk driving unit
11/01/2000CN1271864A Lens clamp and its preparation method, metallic mould for producing lens clamp and objective lens device
11/01/2000CN1058100C Photo pick-up device
10/2000
10/31/2000USRE36933 Disk reproduction apparatus capable of continuously varying a reproduction speed
10/31/2000US6141721 Method of asynchronous memory access
10/31/2000US6141419 Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk
10/31/2000US6141364 Semiconductor laser device and optical disk apparatus using the same
10/31/2000US6141316 Optical disk for high speed data recording and playback
10/31/2000US6141315 A recording layer in which writing, reading, erasing of information is conducted by irradiation with light
10/31/2000US6141312 Optical tape drive that performs direct read after write operations
10/31/2000US6141311 Anti-dust cover driving device for a CD player
10/31/2000US6141309 Optical memory apparatus having a supporting base with an integral, fixed optical part mounting portion
10/31/2000US6141308 Zero crossing level matching apparatus and method
10/31/2000US6141307 Optical disk discriminating apparatus
10/31/2000US6141306 Optical disc drive and methods of examining the optical disc drive
10/31/2000US6141305 Optical disk recording and reproducing apparatus and method and tracking servo apparatus and method
10/31/2000US6141304 Optical pickup
10/31/2000US6141303 Quadrature signal generator using an adaptive length dual arm correlator for optical storage devices
10/31/2000US6141302 Optical recording/reproducing apparatus including a mask device for masking marginal rays, in a direction perpendicular to a recording medium track, of a light beam returned from the recording medium
10/31/2000US6141301 Apparatus and method for dynamic tracking and focus in an optical tape system
10/31/2000US6141300 Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same
10/31/2000US6141299 Apparatus and method for reproducing information data of different formats from a multi-layer optical disc
10/31/2000US6141189 Laminated steel return path with actuator support features
10/31/2000US6141169 System and method for control of low frequency input levels to an amplifier and compensation of input offsets of the amplifier
10/31/2000US6141153 Optical scanning device and optical apparatus for reading and/or writing information in an information plane provided with such a device
10/31/2000US6140477 Near-infrared ray absorbing polyazo compound
10/31/2000US6140028 Optical disks an reproduction heads for reading information stored on disks with transparent substrates with layers for information
10/31/2000US6140012 Optical recording media with nonoriented proteins
10/31/2000US6140011 Optical information recording medium
10/31/2000US6139933 Optical recording medium comprising a cross-linked buffer layer
10/31/2000CA2049767C Disc-shaped recording medium
10/31/2000CA2049280C Disc recording and/or reproducing apparatus
10/31/2000CA2049114C Recording and/or reproducing apparatus for optical disk
10/26/2000WO2000063910A1 Method for cd-rom recording and reading preventing copying thereof
10/26/2000WO2000063908A1 Method and device for recording information in units
10/26/2000WO2000063899A1 An optical recording medium and method for using same
10/26/2000WO2000063898A1 Track crossing discriminating circuit
10/26/2000WO2000063897A1 Writable optical drive with dynamically variable linear velocity to prevent buffer under-run
10/26/2000WO2000063861A2 System, method and article of manufacture for targetted advertisement based on the electronic content of a laser-centric medium
10/26/2000WO2000063860A1 System, method and article of manufacture for authorizing the use of electronic content utilizing a laser-centric medium and a network server
10/26/2000WO2000063829A1 Electronic tracking of an electronic storage medium
10/26/2000WO2000063772A1 Targeted update of a laser-centric medium
10/26/2000DE19916573A1 Schreib-/Lesemodul für optische Speichersysteme Read / write module for optical storage systems
10/26/2000DE10015953A1 Lens holder for holding objective lens on optical measuring head for recording and/or reproduction on or by optical data recording disk
10/26/2000CA2388592A1 Targeted update of a laser-centric medium
10/26/2000CA2388588A1 System, method and article of manufacture for targetted advertisement based on the electronic content of a laser-centric medium
10/26/2000CA2388569A1 System, method and article of manufacture for authorizing the use of electronic content utilizing a laser-centric medium and a network server
10/26/2000CA2388035A1 Electronic tracking of an electronic storage medium
10/26/2000CA2334921A1 Track crossing discriminating circuit
10/25/2000EP1047070A2 Optical recording medium on which data may be stored seamlessly and method for processing defective area within the medium
10/25/2000EP1047065A2 Device and method for reducing crosstalk and intersymbol interference
10/25/2000EP1047057A2 Process for producing optical recording medium and optical recording medium
10/25/2000EP1047056A1 Optical information recording medium and optical recording method
10/25/2000EP1047055A1 Optical storage medium
10/25/2000EP1047054A1 Data storage device
10/25/2000EP1047052A2 Compatible optical pickup for DVD-RAM reproduction
10/25/2000EP1047051A2 Light emitting module and compatible optical pickup device adopting the same
10/25/2000EP1047050A1 Method of preventing illegal use of optical disk, optical disk based on the same method, and method of producing the optical disk
10/25/2000EP1047049A2 Optical recording medium and recording/reproduction method therefor
10/25/2000EP1046290A1 Reproduction device with a search-reproduction mode
10/25/2000EP1046166A2 Information carrier with a compact header format and apparatus
10/25/2000EP1046163A1 System for copy protection of recorded information
10/25/2000EP1046162A1 Rewritable optical data storage disk having enhanced flatness
10/25/2000EP1046161A1 Device for scanning an optical record carrier having at least two information layers
10/25/2000EP1046160A1 Positioning system and apparatus including the positioning system
10/25/2000EP1046159A1 Method of recording a multi-layer optically recordable information carrier
10/25/2000EP1046083A1 Apparatus, holographic process for duplicating optical and holographic memories, and memory copy obtained thereof
10/25/2000EP1046019A1 Navigation system and navigation data carrier
10/25/2000EP0908058B1 Optical disc
10/25/2000CN2403103Y Optical disk storage card
10/25/2000CN1271453A Aperture stop for a flying optical head
10/25/2000CN1271452A Anti-chipping recording disc, reading method and recording head
10/25/2000CN1271166A Empty detection circuit and method