ClassID:

198041

G11B7/08505 - CPC Classification

Classification description:

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; Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection Methods for track change, selection or preliminary positioning by moving the head

Sub-classes:
Recent Application in this class:
#1
20170256279
2017-09-07

Quadrature track error signal for optical recording media and devices

#2
20160163347
2016-06-09

Information recording and playback device

#3
20160140995
2016-05-19

Servo processor receiving photodetector signals

#4
20150206551
2015-07-23

Information recording apparatus, information recording method, information reproducing apparatus, and information reproducing method

#5
20150146509
2015-05-28

Quadrature track error signal for optical recording media and devices

#6
20140078875
2014-03-20

Optical disk device with independent servo layer focus and tracking control on a multilayered disc

#7
20130077458
2013-03-28

Optical read/write apparatus

#8
20120113780
2012-05-10

METHOD AND APPARATUS FOR ACCESSING DATA FROM DISC WITH LINKING AREA

#9
20120072930
2012-03-22

Device for reducing power consumption of optical drive and method for the same

#10
20120051202
2012-03-01

Optical disc discrimination method, optical disc device and integrated circuit

#11
20120030473
2012-02-02

Unique block header patterns for media verification

#12
20110317529
2011-12-29

Information storage medium, apparatus for reproducing recordings, and method for reproducing recordings

#13
20110249540
2011-10-13

Laser power management for super-RENS optical recording media

#14
20110228655
2011-09-22

Compensation method in radial direction on label side of optical disc

#15
20110211434
2011-09-01

Method of recognizing track pitch of optical disk

#16
20110188358
2011-08-04

Optical disk drive device and additional recording method

#17
20110075528
2011-03-31

Optical disc apparatus for executing recording or reproducing onto/from a multilayered optical disc having at least 3 layers

#18
20110063958
2011-03-17

Servo control using digital signal processing for optical disk drive

#19
20110051575
2011-03-03

FOCUS JUMP METHOD AND OPTICAL DISC APPARATUS

#20
20100290324
2010-11-18

Optical pickup and optical disk apparatus

#21
20100214888
2010-08-26

Random access control method and optical disc driver

#22
20100195456
2010-08-05

OPTICAL DISC CONTROL DEVICE

#23
20100195451
2010-08-05

Optical disk playback device

#24
20100165820
2010-07-01

OPTICAL PICKUP APPARATUS AND METHOD OF CONTROLLING THE SAME

#25
20100157756
2010-06-24

Optical disc apparatus and optical disc drive control method

#26
20100149939
2010-06-17

OPTICAL DISC RECORDING METHOD AND OPTICAL DISC APPARATUS

#27
20100135148
2010-06-03

Device for reducing power consumption of optical drive and method for the same

#28
20100128586
2010-05-27

METHOD AND APPARATUS FOR ACCESSING DATA FROM DISC WITH LINKING AREA

#29
20100110867
2010-05-06

DISC PLAYBACK APPARATUS

#30
20100034061
2010-02-11

OPTICAL STORAGE APPARATUS AND CONTROL CHIP FOR ACCESSING AN OPTICAL DISC AND METHOD THEREOF

#31
20100026778
2010-02-04

DRAWING DEVICE AND METHOD, AND COMPUTER PROGRAM

#32
20100020659
2010-01-28

Method and apparatus for preventing data reproducibility

#33
20100008194
2010-01-14

Reading method and device for optical disk drives

#34
20090290477
2009-11-26

OPTICAL DISK REPRODUCING DEVICE

#35
20090290457
2009-11-26

Optical focus error offset to reduce radial to vertical crosstalk

#36
20090279395
2009-11-12

Optical disk drives and method for controlling track-seeking for optical disk drives

#37
20090274025
2009-11-05

Methods and devices for controlling access to an optical disc

#38
20090213703
2009-08-27

Track calculation method for fixing track jumps of optical discs of different capacities

#39
20090201778
2009-08-13

Optical disk playback device

#40
20090196139
2009-08-06

Apparatus, system, and method for locating and fast-searching units of digital information in volume, optical-storage disks

#41
20090092026
2009-04-09

Optical disc device and control circuit for optical disc device

#42
20090072818
2009-03-19

Position sensor, optical head device, head moving mechanism, information recording and reproduction device and position control system

#43
20090059978
2009-03-05

Laser diode control method, laser diode control device, and information recording/playback apparatus

#44
20090059740
2009-03-05

WRITABLE ADDRESS LOCATING METHODS AND OPTICAL RECORDING APPARATUS UTILIZING THE SAME

#45
20090010146
2009-01-08

Optical disk drive for scanning an optical disk carrying a groove with a wobble

#46
20090003184
2009-01-01

Method of Moving Tracks, Method and Apparatus of Recording and/or Playback

#47
20090003151
2009-01-01

System and method for controlling a tracking servo during label printing

#48
20080316877
2008-12-25

Control Method for an Optical Drive with Different Bandwidths

#49
20080285421
2008-11-20

Optical disk drive

#50
20080284365
2008-11-20

Servo system for a two-dimensional micro-electromechanical system (MEMS)-based scanner and method therefor

#51
20080259748
2008-10-23

OPTICAL DISC AND OPTICAL DISC APPARATUS

#52
20080259747
2008-10-23

Detecting apparatus for detecting statuses of optical disc and method thereof

#53
20080253268
2008-10-16

Method and system for recording data by a plurality of laser beams on an optical disc

#54
20080253243
2008-10-16

Controlling an Optical Disc Drive

#55
20080247288
2008-10-09

Optical Disk Drive and Tracking Error Detection Method For an Optical Disk Drive

#56
20080198709
2008-08-21

Random access control method and optical disc drive

#57
20080123505
2008-05-29

OPTICAL DISK APPARATUS AND OPTICAL DISK REPRODUCTION METHOD

#58
20080123208
2008-05-29

METHOD FOR OPTIMIZING PARAMETER OF INFORMATION STORAGE APPARATUS

#59
20080112287
2008-05-15

OPTICAL DISK AND OPTICAL DISK DRIVE DEVICE

#60
20080101167
2008-05-01

Optical drive servo with a servo processor receiving photodetector signals

#61
20080095018
2008-04-24

Optical disc device

#62
20080037389
2008-02-14

Method for determining track searching direction

#63
20080031116
2008-02-07

Information management method for information recording medium, recording method, and information recording/reproducing apparatus thereby

#64
20080025166
2008-01-31

Disk device, and position determination method for pickup head

#65
20080019233
2008-01-24

Method for identifying recording contents of an optical disk

#66
20080002547
2008-01-03

Optical disk apparatus and method

#67
20070286057
2007-12-13

Method of printing label on optical disk, optical disk unit, and optical disk

#68
20070286003
2007-12-13

Temperature Gain Compensation System and Method for Disc Label Laser Etching Process

#69
20070280086
2007-12-06

Laser power control system and method

#70
20070279480
2007-12-06

OPTICAL DISK APPARATUS

#71
20070258338
2007-11-08

System and method for detecting the location of an optical pick-up head

#72
20070247685
2007-10-25

Access Method for Multi-Layer Holographic Recording Medium

#73
20070223357
2007-09-27

Head Range Controlled Jumping

#74
20070223334
2007-09-27

System and method for controlling optical pickup unit

#75
20070223327
2007-09-27

OPTICAL DISC DRIVE AND METHOD OF CONTROLLING ACTUATOR

#76
20070223321
2007-09-27

Rail Friction Calibration

#77
20070217768
2007-09-20

Optical disc image forming apparatus

#78
20070211611
2007-09-13

System and method for generating an output signal indicating a specific area on an optical disc utilizing an adjustable specific time

#79
20070211580
2007-09-13

DRIVING APPARATUS FOR OPTICAL PICKUP UNIT AND OPTICAL DISC DRIVE USING THE SAME

#80
20070206460
2007-09-06

Optical element feeding device driving method and optical disk apparatus

#81
20070201334
2007-08-30

Optical pickup control apparatus and method

#82
20070201318
2007-08-30

Disk access device

#83
20070188911
2007-08-16

Off track write protection using filtered position error signal

#84
20070171773
2007-07-26

Optical disc and optical disc recording/reproducing device technical field

#85
20070153646
2007-07-05

Optical Recording Apparatus With Drawing Capability of Visible Image on Disk Face

#86
20070121467
2007-05-31

Optical disk image forming method, optical disk image forming apparatus, and computer readable recording medium storing optical disk image forming program

#87
20070121439
2007-05-31

Optical disc drive and method for controlling the position of a lens

#88
20070081206
2007-04-12

Holographic recording method, holographic recording apparatus, holographic memory reproducing method, holographic memory reproducing apparatus, holographic recording and reproducing apparatus, and holographic recording medium

#89
20070076086
2007-04-05

Calibration of lens position in an optical disc drive

#90
20070069679
2007-03-29

Servo system for a two-dimensional micro-electromechanical system (MEMS)-based scanner and method therefor

#91
20070064554
2007-03-22

Optical disk drive and method of determining working distance

#92
20070064337
2007-03-22

Storage apparatus, storage apparatus control method, and computer product

#93
20070025219
2007-02-01

Information playback apparatus and information playback method

#94
20070025218
2007-02-01

Method of reducing disc lead-in time in optical recording/reproducing apparatus

#95
20070016787
2007-01-18

Unique block header patterns for media verification

#96
20070014208
2007-01-18

Data recording/reproducing method in recording media

#97
20070014207
2007-01-18

METHOD OF TRACK SEEKING IN AN OPTICAL DISC DRIVE

#98
20070002701
2007-01-04

Optical disk and optical disk drive device

#99
20070002700
2007-01-04

Optical disk, optical disk access device and access method

#100
20060294534
2006-12-28

Optical disk and optical disk drive device

#101
20060291101
2006-12-28

Head position control method, head position control device, and disk device

#102
20060290985
2006-12-28

Method and apparatus for printing on a label side of a disc medium

#103
20060285464
2006-12-21

Circuit for detecting recorded area

#104
20060280067
2006-12-14

Audio data search control device

#105
20060280059
2006-12-14

Optical pickup device

#106
20060262673
2006-11-23

Calibration of fine actuator of optical drive

#107
20060250898
2006-11-09

Disc position determination methods and related devices

#108
20060239156
2006-10-26

Recording/reproducing method and disc

#109
20060233079
2006-10-19

Optical information recording apparatus and method

#110
20060197824
2006-09-07

Constant angular velocity disk label printing

#111
20060193237
2006-08-31

Optical recording apparatus with drawing capability of visible image on disk face

#112
20060193219
2006-08-31

Diffraction grating, optical pickup device, and optical disk apparatus

#113
20060171267
2006-08-03

Optical disk apparatus

#114
20060132593
2006-06-22

Constant angular velocity disk label printing

#115
20060126466
2006-06-15

Information recording apparatus, information reproducing apparatus, information recording method, and information reproducing method with an improved track jump performance

#116
20060126456
2006-06-15

Method for executing a track jump of an explorer head to retireve data from aa carrier

#117
20060109762
2006-05-25

Method and apparatus for recording and/or reproducing information

#118
20060109758
2006-05-25

Optical disk apparatus

#119
20060082875
2006-04-20

Optical element for condensing incident light

#120
20060077797
2006-04-13

Optical disk recording/reproduction device and search method for information recording area of optical disk in the same

#121
20060076918
2006-04-13

Servo system for a two-dimensional micro-electromechanical system (MEMS)-based scanner and method therefor

#122
20060072899
2006-04-06

Rotation speed control for recording information

#123
20060072417
2006-04-06

Device for reducing power consumption of optical drive and method for the same

#124
20060044970
2006-03-02

Disc player and method of reproducing information on disc

#125
20060039247
2006-02-23

Method for adjusting deviation on seeking BCA in optical disk

#126
20060023576
2006-02-02

Optical disk device and track-on method thereof

#127
20060017803
2006-01-26

Optical disk device

#128
20060007798
2006-01-12

Disk player

#129
20060002271
2006-01-05

Apparatus for controlling an optical disk drive by calculating a target frequency of a DPLL signal

#130
20060002265
2006-01-05

Optical disc device

#131
20050286373
2005-12-29

Information processing device, disc unit, information processing method, information processing program and recording medium containing the program

#132
20050281183
2005-12-22

Constant angular velocity disk label printing

#133
20050281182
2005-12-22

Optical media printing using a vibration signal

#134
20050281181
2005-12-22

Optical media label printing using different power levels

#135
20050281152
2005-12-22

Scanning optical media during label printing

#136
20050281149
2005-12-22

System and method for controlling a tracking servo during label printing

#137
20050265179
2005-12-01

Optical disk apparatus and rotation speed control method thereof

#138
20050265137
2005-12-01

Disc drive apparatus

#139
20050259539
2005-11-24

Disk reproduction device

#140
20050249073
2005-11-10

Information processing device, disc unit, information processing method, information processing program and recording medium containing the program

#141
20050249058
2005-11-10

Method and apparatus for performing target search on optical storage disc

#142
20050243666
2005-11-03

System and method for detecting and recovering from an off-format state in an optical disc drive

#143
20050243442
2005-11-03

Objective lens drive device

#144
20050237878
2005-10-27

Method and apparatus for determining position of optical pick-up head

#145
20050237867
2005-10-27

Optical disc apparatus

#146
20050195697
2005-09-08

Optical disk apparatus

#147
20050185538
2005-08-25

Method and device for canceling a land-groove offset component of a focusing error signal in an optical storage system

#148
20050185231
2005-08-25

Holographic recording medium, holographic reading system, and data reading method from the holographic recording medium

#149
20050174910
2005-08-11

Method for controlling stepping motor

#150
20050174905
2005-08-11

Disc apparatus

#151
20050169138
2005-08-04

Apparatus and method of performing pause motion of optical pickup

#152
20050163036
2005-07-28

Optical information recording medium and optical information recording and reproducing apparatus

#153
20050128929
2005-06-16

Optical recording medium and optical information processor

#154
20050122867
2005-06-09

Optical disk and optical disk drive device

#155
20050117477
2005-06-02

Motor control apparatus, disk apparatus and acceleration detection device

#156
20050117467
2005-06-02

Carriage servo apparatus, information reproduction apparatus and carriage servo control method

#157
20050105422
2005-05-19

Optical disk and optical disk drive device

#158
20050078567
2005-04-14

Method of adaptively controlling sled home-in mode and disc drive using the same

#159
20050073922
2005-04-07

Appliance for recording or playing back information having means for detecting or moving the scanning location on a disc with a wobble track

#160
20050063286
2005-03-24

Control module for an automatic gain control device of an optical disc playback apparatus

#161
20050041542
2005-02-24

Optical display device

#162
20050036411
2005-02-17

Optical disc playback apparatus performing defocus adjustment of objective lens

#163
20050036227
2005-02-17

Method and system of a head for a storage media

#164
20050030839
2005-02-10

Seek method of optical disks and optical storage device