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G11B7/00
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Parent Industries
G
PHYSICS
G11
Information storage
G11B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
Current Industry
G11B7/00
Recording or reproducing by optical means
Sub Industries
G11B7/002
Recording, reproducing or erasing systems characterised by the shape or form of the carrier
G11B7/0025
with cylinders or cylinder-like carriers or cylindrical sections or flat carriers loaded onto a cylindrical surface
G11B7/003
with webs , filaments or wires
G11B7/0031
using a rotating head
G11B7/0032
for moving-picture soundtracks
G11B7/0033
with cards or other card-like flat carriers
G11B7/0037
with discs
G11B7/00375
arrangements for detection of physical defects
G11B7/004
Recording, reproducing or erasing methods Read, write or erase circuits therefor
G11B7/0045
Recording
G11B7/00451
involving ablation of the recording layer
G11B7/00452
involving bubble or bump forming
G11B7/00453
involving spectral or photochemical hole burning
G11B7/00454
involving phase-change effects
G11B7/00455
involving reflectivity, absorption or colour changes
G11B7/00456
Recording strategies
G11B7/00458
Verification
G11B7/005
Reproducing
G11B7/0051
involving phase depth effects
G11B7/0052
involving reflectivity, absorption or colour changes
G11B7/0053
Reproducing non-user data
G11B7/0055
Erasing
G11B7/00552
involving colour change media
G11B7/00555
involving liquid crystal media
G11B7/00557
involving phase-change media
G11B7/006
Overwriting
G11B7/0062
Overwriting strategies
G11B7/0065
Recording, reproducing or erasing by using optical interference patterns
G11B7/007
Arrangement of the information on the record carrier
G11B7/00718
Groove and land recording
G11B7/00736
Auxiliary data
G11B7/00745
Sectoring or header formats within a track
G11B7/00772
on record carriers storing information in the form of optical interference patterns
G11B7/00781
Auxiliary information
G11B7/0079
Zoned data area
G11B7/013
for discrete information, i.e. where each information unit is stored at a distinct discrete location
G11B7/08
Disposition or mounting of heads or light sources relatively to record carriers
G11B7/081
for time base error correction by moving the light beam
G11B7/082
Aligning the head or the light source relative to the record carrier otherwise than during transducing
G11B7/083
relative to record carriers storing information in the form of optical interference patterns
G11B7/085
with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation
G11B7/08505
Methods for track change, selection or preliminary positioning by moving the head
G11B7/08511
with focus pull-in only
G11B7/08517
with tracking pull-in only
G11B7/08523
with both tracking and focusing pull-in
G11B7/08529
Methods and circuits to control the velocity of the head as it traverses the tracks
G11B7/08535
to maintain constant velocity during the traverse
G11B7/08541
involving track counting to determine position
G11B7/08547
Arrangements for positioning the light beam only without moving the head
G11B7/08552
using electro-optical elements
G11B7/08558
using acousto-optical elements
G11B7/08564
using galvanomirrors
G11B7/0857
Arrangements for mechanically moving the whole head
G11B7/08576
Swinging-arm positioners
G11B7/08582
Sled-type positioners
G11B7/08588
with position sensing by means of an auxiliary system using an external scale
G11B7/08594
to access both sides of the disc with the same head assembly
G11B7/09
with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation
G11B7/0901
for track following only
G11B7/0903
Multi-beam tracking systems
G11B7/0904
Dithered tracking systems
G11B7/0906
Differential phase difference systems
G11B7/0908
for focusing only
G11B7/0909
by astigmatic methods
G11B7/0911
by far-field method
G11B7/0912
by push-pull method
G11B7/0914
by non-optical methods
G11B7/0916
Foucault or knife-edge methods
G11B7/0917
Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
G11B7/0925
Electromechanical actuators for lens positioning
G11B7/0927
for focusing only
G11B7/0929
for tracking only
G11B7/093
for focusing and tracking
G11B7/0932
Details of sprung supports
G11B7/0933
Details of stationary parts
G11B7/0935
Details of the moving parts
G11B7/0937
Piezo-electric actuators
G11B7/0938
servo format
G11B7/094
Methods and circuits for servo offset compensation
G11B7/0941
Methods and circuits for servo gain or phase compensation during operation
G11B7/0943
Methods and circuits for performing mathematical operations on individual detector segment outputs
G11B7/0945
Methods for initialising servos, start-up sequences
G11B7/0946
specially adapted for operation during external perturbations not related to the carrier or servo beam
G11B7/0948
specially adapted for detection and avoidance or compensation of imperfections on the carrier
G11B7/095
specially adapted for discs
G11B7/0953
to compensate for eccentricity of the disc or disc tracks
G11B7/0956
to compensate for tilt, skew, warp or inclination of the disc
G11B7/10
Interchangeable mountings
G11B7/12
Heads
G11B7/121
Protecting the head
G11B7/122
Flying-type heads
G11B7/123
Integrated head arrangements
G11B7/124
the integrated head arrangements including waveguides
G11B7/1245
the waveguides including means for electro-optical or acousto-optical deflection
G11B7/125
Optical beam sources therefor
G11B7/126
Circuits, methods or arrangements for laser control or stabilisation
G11B7/1263
Power control during transducing
G11B7/1267
Power calibration
G11B7/127
Lasers Multiple laser arrays
G11B7/1275
Two or more lasers having different wavelengths
G11B7/128
Modulators
G11B7/13
Optical detectors therefor
G11B7/131
Arrangement of detectors in a multiple array
G11B7/133
Shape of individual detector elements
G11B7/135
Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
G11B7/1353
Diffractive elements
G11B7/1356
Double or multiple prisms
G11B7/1359
Single prisms
G11B7/1362
Mirrors
G11B7/1365
Separate or integrated refractive elements
G11B7/1367
Stepped phase plates
G11B7/1369
Active plates
G11B7/1372
Lenses
G11B7/1374
Objective lenses
G11B7/1376
Collimator lenses
G11B7/1378
Separate aberration correction lenses Cylindrical lenses to generate astigmatism Beam expanders
G11B7/1381
Non-lens elements for altering the properties of the beam
G11B7/1384
Fibre optics
G11B7/1387
using the near-field effect
G11B7/139
Numerical aperture control means
G11B7/1392
Means for controlling the beam wavefront
G11B7/13922
passive
G11B7/13925
active
G11B7/13927
during transducing
G11B7/1395
Beam splitters or combiners
G11B7/1398
Means for shaping the cross-section of the beam
G11B7/14
specially adapted to record on, or to reproduce from, more than one track simultaneously
G11B7/22
Apparatus or processes for the manufacture of optical heads
G11B7/24
Record carriers characterised by shape, structure or physical properties, or by the selection of the material
G11B7/24003
Shapes of record carriers other than disk shape
G11B7/24006
Cylindrical or shaft-shaped
G11B7/24009
Tapes, long films or long sheets
G11B7/24012
Optical cards
G11B7/24015
Air-sandwiched disks
G11B7/24018
Laminated disks
G11B7/24021
provided with a special shape or structure for centering or eccentricity prevention
G11B7/24024
Adhesion or bonding
G11B7/24027
Layers Shape, structure or physical properties thereof
G11B7/2403
Layers Shape, structure or physical properties thereof
G11B7/24033
Electrode layers
G11B7/24035
Recording layers
G11B7/24038
Multiple laminated recording layers
G11B7/24041
with different recording characteristics
G11B7/24044
for storing optical interference patterns
G11B7/24047
Substrates
G11B7/2405
being also used as track layers of pre-formatted layers
G11B7/24053
Protective topcoat layers lying opposite to the light entrance side
G11B7/24056
Light transmission layers lying on the light entrance side and being thinner than the substrate
G11B7/24059
specially adapted for near-field recording or reproduction
G11B7/24062
Reflective layers
G11B7/24065
Layers assisting in recording or reproduction below the optical diffraction limit
G11B7/24067
Combinations of two or more layers with specific interrelation
G11B7/2407
Tracks or pits Shape, structure or physical properties thereof
G11B7/24073
Tracks
G11B7/24076
Cross sectional shape in the radial direction of a disk
G11B7/24079
Width or depth
G11B7/24082
Meandering
G11B7/24085
Pits
G11B7/24088
for storing more than two values
G11B7/24091
Combinations of pits and tracks with specific interrelation
G11B7/24094
Indication parts or information parts for identification
G11B7/24097
Structures for detection, control, recording operation or replay operation Special shapes or structures for centering or eccentricity prevention Arrangements for testing, inspecting or evaluating Containers, cartridges or cassettes
G11B7/241
characterised by the selection of the material
G11B7/242
of recording layers
G11B7/243
comprising inorganic materials only
G11B7/2433
Metals or elements of groups 13, 14, 15 or 16 of the Periodic System
G11B7/2437
Non-metallic elements
G11B7/244
comprising organic materials only
G11B7/245
containing a polymeric component
G11B7/246
containing dyes
G11B7/2463
azulene
G11B7/2467
azo-dyes
G11B7/247
methine or polymethine dyes
G11B7/2472
cyanine
G11B7/2475
merocyanine
G11B7/2478
oxonol
G11B7/248
porphines azaporphines
G11B7/249
containing organometallic compounds
G11B7/2492
neutral compounds
G11B7/2495
as anions
G11B7/2498
as cations
G11B7/25
containing liquid crystals
G11B7/251
comprising inorganic materials dispersed in an organic matrix
G11B7/252
of layers other than recording layers
G11B7/253
of substrates
G11B7/2531
comprising glass
G11B7/2532
comprising metals
G11B7/2533
comprising resins
G11B7/2534
polycarbonates [PC]
G11B7/2535
polyesters
G11B7/2536
polystyrene [PS]
G11B7/2537
epoxy resins
G11B7/2538
polycycloolefins [PCO]
G11B7/2539
biodegradable polymers
G11B7/254
of protective topcoat layers
G11B7/2542
consisting essentially of organic resins
G11B7/2545
containing inorganic fillers
G11B7/2548
consisting essentially of inorganic materials
G11B7/256
of layers improving adhesion between layers
G11B7/257
of layers having properties involved in recording or reproduction
G11B7/2572
consisting essentially of organic materials
G11B7/2575
resins
G11B7/2578
consisting essentially of inorganic materials
G11B7/258
of reflective layers
G11B7/2585
based on aluminium
G11B7/259
based on silver
G11B7/2595
based on gold
G11B7/26
Apparatus or processes specially adapted for the manufacture of record carriers
G11B7/261
Preparing a master
G11B7/263
Preparing and using a stamper
G11B7/265
Apparatus for the mass production of optical record carriers
G11B7/266
Sputtering or spin-coating layers
G11B7/268
Post-production operations
G11B7/28
Re-recording
Industries
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Patents Grants
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Issue date
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Issue date
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Issue date
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Patent number
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Issue date
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Issue date
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Patent number
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Issue date
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Issue date
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Issue date
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Patent number
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Issue date
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Heat treatment of NFT and surrounding material
Patent number
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Issue date
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Issue date
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G02 - OPTICS
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G11 - INFORMATION STORAGE
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Issue date
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Patent number
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Issue date
Dec 5, 2023
Sony Group Corporation
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G11 - INFORMATION STORAGE
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Patent number
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Issue date
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Issue date
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Patent number
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Issue date
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G11 - INFORMATION STORAGE
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Patent number
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Issue date
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G11 - INFORMATION STORAGE
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Issue date
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Issue date
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Issue date
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Issue date
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Issue date
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Issue date
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B82 - NANO-TECHNOLOGY
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Publication date
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Publication date
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Publication date
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Publication date
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Publication number
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Publication date
Feb 22, 2024
Panasonic Intellectual Property Management Co., Ltd.
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Publication number
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Publication date
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Panasonic Intellectual Property Management Co., Ltd.
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G11 - INFORMATION STORAGE
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Publication number
20240055020
Publication date
Feb 15, 2024
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Kenneth Singer
G11 - INFORMATION STORAGE
Information
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Publication number
20240055021
Publication date
Feb 15, 2024
Ceramic Data Solutions GmbH
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G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL MEMORY, OPTICAL DIFFRACTION ELEMENT, AND RECORDING METHOD
Publication number
20240038264
Publication date
Feb 1, 2024
FUJIKURA LTD.
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G11 - INFORMATION STORAGE
Information
Patent Application
LENS DRIVING APPARATUS
Publication number
20240019660
Publication date
Jan 18, 2024
LG Innotek Co., Ltd.
Ji Hoon Kim
G11 - INFORMATION STORAGE
Information
Patent Application
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Publication number
20240021214
Publication date
Jan 18, 2024
Yuuichi KUZE
G11 - INFORMATION STORAGE
Information
Patent Application
HOLOGRAPHIC STORAGE
Publication number
20230360674
Publication date
Nov 9, 2023
Microsoft Technology Licensing, LLC
Douglas James KELLY
G11 - INFORMATION STORAGE
Information
Patent Application
GENERATING MULTIPLE BEAMS OF A HARMONIC FREQUENCY
Publication number
20230327391
Publication date
Oct 12, 2023
Microsoft Technology Licensing, LLC
Richard John BLACK
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL STORAGE MEDIUM, METHOD FOR PREPARING OPTICAL STORAGE MEDIUM...
Publication number
20230282234
Publication date
Sep 7, 2023
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G11 - INFORMATION STORAGE
Information
Patent Application
DATA READ/WRITE SYSTEM AND METHOD
Publication number
20230282233
Publication date
Sep 7, 2023
Huawei Technologies Co., Ltd
Hongwei TANG
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC TAPE CARTRIDGE, CARTRIDGE MANAGEMENT SYSTEM, READING METHO...
Publication number
20230282227
Publication date
Sep 7, 2023
FUJIFILM CORPORATION
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G11 - INFORMATION STORAGE
Information
Patent Application
DATA RECORDING DEVICE AND DATA RECORDING METHOD
Publication number
20230274765
Publication date
Aug 31, 2023
Kabushiki Kaisha Toshiba
Hiroaki SUGITA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Nanoparticle-Based Holographic Photopolymer Materials and Related A...
Publication number
20230266512
Publication date
Aug 24, 2023
DIGILENS INC.
Gerald Buxton
G11 - INFORMATION STORAGE
Information
Patent Application
INFORMATION RECORDING MEDIUM AND PLAYBACK DEVICE
Publication number
20230260545
Publication date
Aug 17, 2023
Sharp Kabushiki Kaisha
Hirohisa YAMADA
G11 - INFORMATION STORAGE
Information
Patent Application
Increased Storage Capacity for a Method for Long-Term Storage of In...
Publication number
20230260546
Publication date
Aug 17, 2023
Ceramic Data Solutions GmbH
Christian Pflaum
G11 - INFORMATION STORAGE
Information
Patent Application
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Publication number
20230223046
Publication date
Jul 13, 2023
Huawei Technologies Co., Ltd
Jia XU
G02 - OPTICS
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Patent Application
OPTICAL PATH CORRECTION SUBASSEMBLY, OPTICAL DETECTION ASSEMBLY, AN...
Publication number
20230147804
Publication date
May 11, 2023
MPI Corporation
PO-YI TING
G11 - INFORMATION STORAGE
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Patent Application
HOLOGRAPHIC STORAGE
Publication number
20230120717
Publication date
Apr 20, 2023
Microsoft Technology Licensing, LLC
Jiaqi CHU
G11 - INFORMATION STORAGE