G11B7/0941 - CPC Classification Index

#1

20220262398

2022-08-18

Detection apparatus, optical drive, and detection method

#2

20210327465

2021-10-21

Optical disk reproducing device

#3

20180089013

2018-03-29

Robot that diagnoses failure, failure diagnosis system, failure diagnosis method, and recording medium

#4

20170148478

2017-05-25

Servo Processor Receiving Photodetector Signals

#5

20160225400

2016-08-04

Optical disc device and spherical aberration error signal detection method

#6

20160189745

2016-06-30

Phase error detector and optical disc device

#7

20160140995

2016-05-19

Servo processor receiving photodetector signals

#8

20160042758

2016-02-11

METHOD FOR DETERMINING PHASE DIFFERENCE OF TRACKING ERROR SIGNAL

#9

20150138942

2015-05-21

Optical disk information device and information processing device

#10

20150131423

2015-05-14

Optical disc device, control method thereof, program, and information storage medium

#11

20140286148

2014-09-25

Optical disc device

#12

20130308432

2013-11-21

Method and apparatus for generating tracking error signal and optical information storage system including the apparatus

#13

20130033974

2013-02-07

Servo control device, optical disk device, and data transfer method

#14

20130028063

2013-01-31

Optical disk apparatus

#15

20130016594

2013-01-17

Optical disk apparatus

#16

20120314551

2012-12-13

Optical disc apparatus

#17

20120263025

2012-10-18

OPTICAL DISC DEVICE

#18

20120243391

2012-09-27

Optical disc device

#19

20120140607

2012-06-07

SIGNAL PROCESSING APPARATUS FOR OPTICAL DISC AND METHOD THEREOF

#20

20120026849

2012-02-02

OPTICAL DISC DEVICE

#21

20120008478

2012-01-12

Optical disc drive and method of controlling power of laser light in recording to optical disc

#22

20120008477

2012-01-12

Optical disc drive and method of controlling laser light power in optical disc drive

#23

20110305123

2011-12-15

Optical pickup control circuit and optical disc drive device

#24

20110299373

2011-12-08

APPARATUS HAVING SWITCHABLE SERVO GAINS AND OFFSETS FOR OPTICAL DISK DRIVE AND METHOD THEREOF

#25

20110292777

2011-12-01

METHOD FOR CALIBRATING TRACKING ERROR SIGNAL IN OPTICAL DISK DRIVE

#26

20110255386

2011-10-20

Optical disc device

#27

20110249541

2011-10-13

OPTICAL DISC UNIT AND SERVO CONTROL METHOD FOR ACTUATOR THEREOF

#28

20110188363

2011-08-04

Automatic power control system for optical disc drive and method thereof

#29

20110122747

2011-05-26

Automatic power control system for optical disc drive and method thereof

#30

20110116351

2011-05-19

Servo controller and optical disk device

#31

20110110205

2011-05-12

Apparatus for controlling servo signal gains of an optical disc drive and method of the same

#32

20110085427

2011-04-14

FOCUS POSITION CONTROL APPARATUS, OPTICAL DISC APPARATUS USING THE SAME, AND FOCUS POSITION CONTROL METHOD

#33

20110063958

2011-03-17

Servo control using digital signal processing for optical disk drive

#34

20110038244

2011-02-17

WRITING METHOD FOR MULTILAYER OPTICAL DISC

#35

20110019512

2011-01-27

Optical disk reproducing device and optical disk recording and reproducing device

#36

20100309766

2010-12-09

Tracking control device, tracking control method, and optical disc apparatus

#37

20100302920

2010-12-02

Optical disk drive

#38

20100296376

2010-11-25

Optical disc device

#39

20100284258

2010-11-11

Interlayer movement apparatus, and integrated circuit for interlayer movement apparatus

#40

20100238777

2010-09-23

Optical disk device, method of controlling optical head, and control device for optical head

#41

20100208566

2010-08-19

METHOD AND APPARATUS FOR PERFORMING LAYER CHANGES FOR AN OPTICAL DISK DRIVE

#42

20100188943

2010-07-29

Optical storage apparatus and method for automatically adjusting loop gain thereof

#43

20100182881

2010-07-22

RECORDING DEVICE, AND OPTICAL DISK SIGNAL PROCESSING METHOD

#44

20100172222

2010-07-08

INFORMATION REPRODUCING APPARATUS, SERVO ADJUSTING METHOD, AND THE LIKE

#45

20100149937

2010-06-17

Multi-layered optical disk and optical disk device capable of addressing a focus lead-in operation

#46

20100149935

2010-06-17

Optical Disc Device

#47

20100118671

2010-05-13

TILT CONTROL METHOD, INTEGRATED CIRCUIT AND OPTICAL DISC DEVICE

#48

20100046332

2010-02-25

Signal processing device for optical disks and optical disk apparatus

#49

20100039913

2010-02-18

Method for performing servo defect compensating operation by compensating servo-related signal derived from reading optical medium and related optical disc drive system with DSP

#50

20100039908

2010-02-18

Automatic power control system for optical disc drive and method thereof

#51

20100014397

2010-01-21

Optical disc driving device

#52

20090316556

2009-12-24

Driving apparatus and method, program, and recording medium

#53

20090316550

2009-12-24

Recording/reproducing apparatus and tracking control method

#54

20090303850

2009-12-10

Optical disc medium and optical disc device

#55

20090296542

2009-12-03

Optical disc apparatus and correction servo control signal generation method

#56

20090268574

2009-10-29

OPTICAL DISC DRIVE AND METHOD OF CONTROLLING THE SAME

#57

20090262610

2009-10-22

Apparatus having switchable servo gains and offsets for optical disk drive and method thereof

#58

20090245036

2009-10-01

SERVO CONTROL DEVICE, SERVO CONTROL METHOD, AND SERVO CONTROL PROGRAM

#59

20090238049

2009-09-24

Average servo control method and system, and target level determination method applied in thereof

#60

20090213705

2009-08-27

Optical disc device

#61

20090207709

2009-08-20

Focus control device, and optical disc device

#62

20090207708

2009-08-20

Optical disc device

#63

20090196133

2009-08-06

SIGNAL PROCESSING APPARATUS FOR OPTICAL DISC AND METHOD THEREOF

#64

20090196130

2009-08-06

INFORMATION RECORDING/REPRODUCING APPARATUS

#65

20090180372

2009-07-16

Near field optical recording/reproducing apparatus and method of normalizing gap error signal of the same

#66

20090161504

2009-06-25

Optical disc drive device and tilt correction device

#67

20090154313

2009-06-18

Optical disc apparatus

#68

20090154308

2009-06-18

OPTICAL DISC APPARATUS, GAIN SETTING METHOD AND PROGRAM

#69

20090154306

2009-06-18

OPTIMIZING FOCUS CROSSTALK CANCELLING

#70

20090141597

2009-06-04

NEAR FIELD OPTICAL RECORDING DEVICE AND A METHOD OF OPERATING A NEAR FIELD OPTICAL RECORDING DEVICE

#71

20090129218

2009-05-21

OPTICAL DISK DEVICE

#72

20090122685

2009-05-14

Information recording and/or reproducing apparatus having two photodetectors to control the light intensity of two light sources with different wavelengths

#73

20090110374

2009-04-30

Optical disc recording and playback apparatus

#74

20090103409

2009-04-23

COMPENSATING GAIN OF AN OPTICAL RECORDING APPARATUS

#75

20090073827

2009-03-19

Automatic power control system for optical disc drive and method thereof

#76

20090067307

2009-03-12

Recording device and method, reproducing device and method, recording/reproducing device and method, and computer program

#77

20090059744

2009-03-05

OPTICAL DISC ACTUATOR CONTROL

#78

20090059741

2009-03-05

Servo control apparatus and method, and disk recording or playback apparatus

#79

20090046549

2009-02-19

Optical disc apparatus, crosstalk correction method and integrated circuit

#80

20090040887

2009-02-12

OPTICAL DISK REPRODUCTION APPARATUS

#81

20090028011

2009-01-29

Optical disk device

#82

20090003167

2009-01-01

Tracking error signal detection device and optical disc apparatus

#83

20090003163

2009-01-01

Optical disk drive for writing a re-writable optical disk and method thereof

#84

20090003152

2009-01-01

OPTICAL DISC APPARATUS, CONTROLLER OF OPTICAL DISC APPARATUS, AND CONTROL METHOD OF OPTICAL DISC APPARATUS

#85

20080298181

2008-12-04

OPTICAL DISC APPARATUS AND OPTICAL DISC APPARATUS CONTROL METHOD

#86

20080284365

2008-11-20

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

#87

20080279538

2008-11-13

Dvd Reading Apparatus

#88

20080259750

2008-10-23

Optical pick-up head, optical information apparatus, and optical information reproducing method

#89

20080253238

2008-10-16

Optical disc device and reproduction method

#90

20080247280

2008-10-09

Optical Drive with Constant Radial Bandwidth

#91

20080232205

2008-09-25

Recording type optical disc medium and optical disc device for the same

#92

20080231332

2008-09-25

Clock Signal Generation Device, Semiconductor Integrated Circuit, and Data Reproduction Method

#93

20080225657

2008-09-18

Optical Disc Actuator Control at Optimal Bandwidth

#94

20080205240

2008-08-28

Focusing controller apparatus and method for an optical disk drive

#95

20080181063

2008-07-31

OPTICAL DISC APPARATUS

#96

20080175108

2008-07-24

OPTICAL INFORMATION STORAGE MEDIUM SYSTEM AND METHOD OF GENERATING TRACKING ERROR SIGNAL

#97

20080163278

2008-07-03

Optical head apparatus and optical information apparatus

#98

20080159101

2008-07-03

OPTICAL DISK DEVICE AND CONTROL METHOD THEREOF

#99

20080137495

2008-06-12

Optical device and optical disc apparatus utilizing the optical device

#100

20080130435

2008-06-05

Disc Drive Apparatus With Non-Linear Observer

#101

20080117756

2008-05-22

Gain Adjusting Method and Apparatus for adjusting the Signal Gain of an Optical Disk Pick-up Signal

#102

20080106984

2008-05-08

Actuator Position Control Method and Corresponding Apparatus

#103

20080101169

2008-05-01

OPTICAL DISC DEVICE AND METHOD FOR FOCUS CONTROL

#104

20080101167

2008-05-01

Optical drive servo with a servo processor receiving photodetector signals

#105

20080089195

2008-04-17

Optical pick-up head, optical information apparatus, and optical information reproducing method

#106

20080084798

2008-04-10

Optical pick-up head, optical information apparatus, and optical information reproducing method

#107

20080074977

2008-03-27

Optical Disc Apparatus

#108

20080074966

2008-03-27

Optical Pickup

#109

20080068957

2008-03-20

Method for detecting servo error, apparatus therefor, disk which maintains quality of servo error signal, method of controlling servo of disk recording/reproducing apparatus, method of detecting tracking error, and method of detecting tilt error

#110

20080068950

2008-03-20

Optical disc apparatus and semiconductor device

#111

20080068944

2008-03-20

Optical pick-up head, optical information apparatus, and optical information reproducing method

#112

20080068940

2008-03-20

METHOD FOR LOCKING ONTO A TRACK AFTER AN OPTICAL PICKUP OF AN OPTICAL DISC DRIVE PASSES THROUGH A DEFECTIVE SECTION OF AN OPTICAL DISC

#113

20080056079

2008-03-06

OPTICAL DISC DRIVE AND METHOD OF CONTROLLING THE SAME

#114

20080049570

2008-02-28

MINIMUM DEFLECTION ACCELERATION POINT DETECTION, FOCUS PULL-IN, AND LAYER JUMP METHODS, AND OPTIONAL DISC DRIVE CAPABLE OF PERFORMING THE METHODS

#115

20080037380

2008-02-14

Optical disk apparatus and servo control method

#116

20080013428

2008-01-17

Servo System, Record Carrier and Playback Device

#117

20070291600

2007-12-20

Optical disk apparatus and tracking method

#118

20070280067

2007-12-06

APPARATUS HAVING SWITCHABLE SERVO GAINS AND OFFSETS FOR OPTICAL DISK DRIVE AND METHOD THEREOF

#119

20070280066

2007-12-06

Apparatus for controling servo signal gains of an optical disc drive and method of same

#120

20070280059

2007-12-06

Apparatus and methods for light spot servo signal detection

#121

20070279274

2007-12-06

Automatic power control system for optical disc drive and method thereof

#122

20070274174

2007-11-29

Optical disk device and optical disk gain adjusting method

#123

20070253305

2007-11-01

Optical disk apparatus

#124

20070242576

2007-10-18

Method and apparatus of determining bias voltage of servo signal in optical disc drive

#125

20070223328

2007-09-27

Apparatus and method for stabilizing operation of disc driver in section for setting mode conversion

#126

20070217302

2007-09-20

Optical recording apparatus

#127

20070201328

2007-08-30

Information/recording/reproducing apparatus including ΔΣ conversion circuit

#128

20070195664

2007-08-23

Optical pick-up head, optical information apparatus, and optical information reproducing method

#129

20070195663

2007-08-23

Optical pick-up head, optical information apparatus, and optical information reproducing method

#130

20070189131

2007-08-16

Optical disc device

#131

20070133366

2007-06-14

Optical disc apparatus and optical pickup unit

#132

20070127330

2007-06-07

Method of focus error signal adjustment in optical disk device and optical disk drive

#133

20070115792

2007-05-24

Differential push-pull gain controlling method and apparatus to reduce the effects of rotational eccentricity

#134

20070109936

2007-05-17

Optical disc servo that is robust for defects

#135

20070104062

2007-05-10

Method and apparatus for reproducing information from recording medium

#136

20070104050

2007-05-10

Focus control device and tracking control device

#137

20070091772

2007-04-26

Gain setting method for optical disk reproducing apparatus

#138

20070070837

2007-03-29

Disc drive apparatus

#139

20070070834

2007-03-29

Signal processing method and signal processing apparatus

#140

20070069679

2007-03-29

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

#141

20070058502

2007-03-15

SERVO SYSTEM AND RELATED METHOD OF ADJUSTING THE MAGNITUDE OF DETECTING SIGNALS OUTPUTTED FROM A PICK-UP HEAD BEFORE UTILIZING THE DETECTING SIGNALS TO GENERATE SERVO SIGNALS

#142

20070053256

2007-03-08

Method and device for adjusting an amplification for producing a focus error signal

#143

20070041289

2007-02-22

Optical disc apparatus

#144

20070030772

2007-02-08

Optical disc apparatus

#145

20070030769

2007-02-08

Wobble signal reproducing circuit

#146

20070025230

2007-02-01

Compensation methods based on laser diode controlling input

#147

20070002703

2007-01-04

Optical disk apparatus and method of adjusting the same

#148

20070001640

2007-01-04

Digital servo system with moving average filter

#149

20070001639

2007-01-04

Digital servo system with pre-processing old control states

#150

20060291101

2006-12-28

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

#151

20060285452

2006-12-21

OPTICAL DISK APPARATUS

#152

20060280081

2006-12-14

Recording medium, recording apparatus, and reading apparatus

#153

20060274635

2006-12-07

Recording medium, recording apparatus, and reading apparatus

#154

20060274634

2006-12-07

Recording medium, recording apparatus, and reading apparatus

#155

20060262678

2006-11-23

Focal control adjusting method and optical disk apparatus

#156

20060221782

2006-10-05

Disk drive apparatus and spherical aberration correcting method

#157

20060203633

2006-09-14

Optical disk drive and correcting method for differential push-pull tracking error signals of the optical disk drive

#158

20060187773

2006-08-24

Information recording or reproducing device and recording or reproducing method

#159

20060171273

2006-08-03

Method for compensating frequency response of an actuator in an optical disc drive

#160

20060171267

2006-08-03

Optical disk apparatus

#161

20060158973

2006-07-20

Actuator position control method and corresponding apparatus

#162

20060140075

2006-06-29

Optical information recording medium manfacturing method therefor, manufacturing apparatus therefor, and optical information recording and reproducing apparatus

#163

20060133234

2006-06-22

Optical disc apparatus

#164

20060126455

2006-06-15

Tracking device

#165

20060114771

2006-06-01

Method and system for adjusting the servo control by monitoring the spot status on photo detector of optical pickup head

#166

20060104162

2006-05-18

Method for driving an actuator, actuator drive, and apparatus comprising an actuator

#167

20060098540

2006-05-11

Optical information recording/reproducing apparatus comprising spherical aberration mechanism

#168

20060092797

2006-05-04

Optical disk reproducing apparatus

#169

20060092789

2006-05-04

Method for detecting servo error, apparatus therefor, disk which maintains quality of servo error signal, method of controlling servo of disk recording/reproducing apparatus, method of detecting tracking error, and method of detecting tilt error

#170

20060077801

2006-04-13

METHOD AND DEVICE FOR TRACKING AND FOCUSING ENHANCEMENT OF DISK DRIVES

#171

20060077798

2006-04-13

Optical disk apparatus and photodetection signal processing method

#172

20060077075

2006-04-13

Servo system, apparatus comprising a servo system, sigma delta modulator, and integrated circuit comprising a sigma delta modulator

#173

20060076918

2006-04-13

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

#174

20060044994

2006-03-02

Method and apparatus for definition of signal for record medium

#175

20060013119

2006-01-19

Optical recording medium having relationship between pit depths, wavelength and refractive index

#176

20060013083

2006-01-19

Apparatus and method for stabilizing operation of disc driver in section for setting mode conversion

#177

20050276177

2005-12-15

Recording/reproduction apparatus and recording/reproduction method

#178

20050265148

2005-12-01

Method and optical disk drive for promptly protecting voice coil motor thereof from over current

#179

20050254401

2005-11-17

Controller device with switchable characteristic

#180

20050254362

2005-11-17

Disc reproduction device

#181

20050243666

2005-11-03

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

#182

20050240952

2005-10-27

Lens driving device for optical read and/or write system and optical read/write system

#183

20050237879

2005-10-27

Optical disk device, loop gain setting method, and loop gain setting program

#184

20050232090

2005-10-20

Apparatus and setup method for reproducing information recorded in optical recording medium, and computer product

#185

20050219972

2005-10-06

Optical disk apparatus

#186

20050199778

2005-09-15

Optical pick-up head, optical information apparatus, and optical information reproducing method

#187

20050180279

2005-08-18

Optical disk recording/reproducing apparatus

#188

20050169129

2005-08-04

Method for detecting servo error, apparatus therefor, disk which maintains quality of servo error signal, method of controlling servo of disk recording/reproducing apparatus, method of detecting tracking error, and method of detecting tilt error

#189

20050162997

2005-07-28

Method and system for controlling disk servo

#190

20050157615

2005-07-21

Optical disk recording/reproducing apparatus

#191

20050128916

2005-06-16

Recording and/or reproducing apparatus and method with a signal quality determining device and method

#192

20050128907

2005-06-16

PLL circuit and an optical disk apparatus thereof

#193

20050128901

2005-06-16

Optical disk apparatus and an optical disk recording and reproducing method

#194

20050117502

2005-06-02

Information playback apparatus, in-line circuit, and method for implementing in-line circuit on information playback apparatus

#195

20050117482

2005-06-02

Apparatus for reading from or writing to optical recording media having means of disk type identification

#196

20050117474

2005-06-02

Tracking learning/adjusting method and optical disk device

#197

20050105451

2005-05-19

Method and device for generating a stable power control signal

#198

20050105436

2005-05-19

stability of a write control signal

#199

20050105431

2005-05-19

Optical disk drive for writing a re-writable optical disk and method thereof

#200

20050105417

2005-05-19

Apparatus having switchable servo gains and offsets for optical disk drive and method thereof

#201

20050105416

2005-05-19

Focusing controller and method thereof for an optical disk drive

#202

20050105415

2005-05-19

Focusing controller apparatus and method for an optical disk drive

#203

20050105412

2005-05-19

Method and device for adjusting a control parameter of a servo of an optical drive

#204

20050105411

2005-05-19

Tracking gain control method and tracking control circuit

#205

20050099903

2005-05-12

Optical disc drive with a system behavior detection module

#206

20050068861

2005-03-31

Track-locking method and apparatus for optical disk drive

#207

20050063287

2005-03-24

Optical disk reproducing apparatus, and offset adjustment method

#208

20050052963

2005-03-10

COMPENSATOR CIRCUIT FOR AN OPTICAL STORAGE DEVICE

#209

20050025001

2005-02-03

Optical recording and reproduction apparatus including stable and inexpensive servo control mechanism

#210

20050018559

2005-01-27

Focus-balance calibration method

#211

20050013215

2005-01-20

Method for adjusting a control parameter and optical disc drive server system using the same

#212

20050002304

2005-01-06

Automatic detecting device for land pre-pits signals

#213

14593601

2016-05-10

Adaptive control of tracking servo system of optical heads in optical storage devices