ClassID:

198807

G11B20/10212 - CPC Classification

Classification description:

Signal processing not specific to the method of recording or reproducing; Circuits therefor; Digital recording or reproducing; Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter compensation for data shift, e.g. pulse-crowding effects

Recent Application in this class:
#1
20230043380
2023-02-09

Signal processing device, signal processing method, and program

#2
20180061451
2018-03-01

Apparatus for minimizing cross track interference for optical tape

#3
20180012627
2018-01-11

MANAGING FAR AND NEAR TRACK ERASURE BY DYNAMIC CONTROL OF A WRITE CURRENT PARAMETER OF A MAGNETIC DISK DRIVE

#4
20170366203
2017-12-21

HOLOGRAPHIC DATA STORAGE SYSTEM AND METHOD

#5
20170162224
2017-06-08

Multi-track data readers with iterative inter-track interference cancellation

#6
20170103781
2017-04-13

Changing characteristics of signal patterns to reduce adjacent track interference

#7
20170062002
2017-03-02

Magnetic disk device and write control method

#8
20160379680
2016-12-29

Write encroachment mitigation system

#9
20160314814
2016-10-27

Systems and methods for side-track aided data recovery

#10
20160307595
2016-10-20

Post-write scan operations for interlaced magnetic recording

#11
20160307594
2016-10-20

MAGNETIC DISK DEVICE AND METHOD OF CONTROLLING MAGNETIC DISK

#12
20160163352
2016-06-09

Systems and methods for multi-dimensional equalization constraint

#13
20160155468
2016-06-02

Optical medium reproduction apparatus and method of reproducing optical medium

#14
20160155467
2016-06-02

MAGNETIC DISK DEVICE AND OPERATING METHOD THEREOF

#15
20160125905
2016-05-05

APPARATUS AND METHOD FOR DETECTING A SYMBOL ON A TWO-DIMENSIONAL STORAGE MEDIUM

#16
20160111125
2016-04-21

Reception terminal and a method for compensating inter-symbol interference and computer readable recording medium for performing the same

#17
20160019931
2016-01-21

Generating position error signal based on data tracks for rotating magnetic data storage

#18
20150279416
2015-10-01

Magnetization control for magnetic shield in magnetic recording head

#19
20150279415
2015-10-01

Systems and methods for skew tolerant multi-head data processing

#20
20150221333
2015-08-06

Reader separation dependent linear and track density push for array reader based magnetic recording

#21
20150187385
2015-07-02

Systems and methods for multi-head balancing in a storage device

#22
20150170706
2015-06-18

Systems and methods for ATI characterization

#23
20150138942
2015-05-21

Optical disk information device and information processing device

#24
20150113201
2015-04-23

Method and system for preserving data of a storage device

#25
20150055242
2015-02-26

METHOD AND SYSTEM FOR ESTIMATING THE POSITION ERROR SIGNAL (PES) METRIC FOR A MAGNETIC STORAGE SYSTEM

#26
20150043098
2015-02-12

Multi-sensor data transducer

#27
20150015984
2015-01-15

Storage Media Inter-Track interference Cancellation

#28
20150015983
2015-01-15

Size adjustable inter-track interference cancellation

#29
20140355404
2014-12-04

Optical medium reproducing apparatus and optical medium reproducing method

#30
20140268392
2014-09-18

Data detection in adjacent tracks

#31
20140233131
2014-08-21

Protecting information written to recording medium

#32
20140160590
2014-06-12

Detecting track information from overlapping signals read from a data storage medium

#33
20140153126
2014-06-05

Systems and methods for old data inter-track interference compensation

#34
20130021689
2013-01-24

Storage media inter-track interference cancellation

#35
20120250480
2012-10-04

Method for adjusting recording condition, optical disc device, and information recording method

#36
20120250174
2012-10-04

INFORMATION RECORDING DEVICE AND INFORMATION RECORDING METHOD

#37
20120243393
2012-09-27

Optical information recording method, optical information reproduction method and optical disk device

#38
20120230173
2012-09-13

OPTICAL DISK REPRODUCING APPARATUS

#39
20120201112
2012-08-09

Reproduction signal evaluation method, reproduction signal evaluation unit, and optical disk device adopting the same

#40
20120126876
2012-05-24

Gain control with multiple integrators

#41
20120026850
2012-02-02

Optical disc reproduction apparatus

#42
20120026623
2012-02-02

Dibit extraction for estimation of channel parameters

#43
20120002527
2012-01-05

Adjusting method for recording condition and optical disc device

#44
20120002526
2012-01-05

Method of evaluating reproduce signal and optical disc drive

#45
20110249357
2011-10-13

Protecting information written to recording medium

#46
20110228662
2011-09-22

Optical disk reproducing apparatus

#47
20110164487
2011-07-07

INFORMATION RECORDING/REPRODUCING DEVICE AND INFORMATION RECORDING/ REPRODUCING METHOD

#48
20110149704
2011-06-23

Signal evaluation method and signal evaluation apparatus

#49
20110093517
2011-04-21

Systems and methods for adaptive target search

#50
20110090774
2011-04-21

WRITE SIGNAL GENERATOR WITH DELAY CALIBRATION

#51
20110051576
2011-03-03

Optical disk device

#52
20100329090
2010-12-30

Target level setting method for a signal used in maximum-likelihood decoding in PRML processing of a signal reproduced from an optical information recording medium, playback device for an optical information recording medium, and target level setting program for a signal used in maximum-likelihood decoding in PRML processing

#53
20100284257
2010-11-11

Adjusting method for recording condition and optical disc device

#54
20100284256
2010-11-11

Method for improving readability of an optical disc, and associated optical storage apparatus

#55
20100260025
2010-10-14

Adjusting method for recording condition and optical disc device

#56
20100238578
2010-09-23

METHOD FOR GENERATING WRITE CLOCK SIGNAL IN MAGNETIC DISK DRIVE

#57
20100238577
2010-09-23

Method and apparatus for measuring phase shift in a disk drive having bit-patterned media

#58
20100195462
2010-08-05

Method of evaluating reproduce signal and optical disc drive

#59
20100176865
2010-07-15

Gain control with multiple integrators

#60
20100169730
2010-07-01

Phase error detection device, phase error detecting method, integrated circuit and optical disc device

#61
20100165805
2010-07-01

METHOD AND APPARATUS FOR DETERMINING AN OPTIMUM POWER LEVEL

#62
20100149940
2010-06-17

CLOCK SIGNAL GENERATION DEVICE

#63
20100117827
2010-05-13

METHOD FOR CURRENT REDUCTION FOR AN ANALOG CIRCUIT IN A DATA READ-OUT SYSTEM

#64
20100097904
2010-04-22

Information reproducing apparatus and method, and computer program

#65
20100085851
2010-04-08

METHOD AND APPARATUS FOR EVALUATING INFORMATION RECORDING MEDIUM

#66
20100074080
2010-03-25

Information reproducing apparatus and method, and computer program

#67
20100054716
2010-03-04

Information readout apparatus and information reproducing method

#68
20100002556
2010-01-07

Reproduction signal evaluation method, reproduction signal evaluation unit, and optical disk device adopting the same

#69
20090323494
2009-12-31

INFORMATION REPRODUCING APPARATUS AND METHOD, AND COMPUTER PROGRAM

#70
20090316561
2009-12-24

Optical information recording method, optical information reproduction method and optical disk device

#71
20090303853
2009-12-10

Optical information recording/reproduction apparatus and recording condition adjusting method

#72
20090274247
2009-11-05

Detection of synchronization mark from output of matched filter upstream of Viterbi detector

#73
20090274028
2009-11-05

Multi-bit phase alignment for synchronization mark pattern matching

#74
20090225639
2009-09-10

Signal evaluation method and signal evaluation apparatus

#75
20090161245
2009-06-25

Frequency domain approach for efficient computation of fixed-point equalization targets

#76
20090047993
2009-02-19

METHOD OF USING MUSIC METADATA TO SAVE MUSIC LISTENING PREFERENCES

#77
20090046557
2009-02-19

PRML (Partial Response Maximum Likelihood) information reproducing method and information reproducing apparatus for implementing the same

#78
20090046555
2009-02-19

WRITE SIGNAL GENERATOR WITH DELAY CALIBRATION

#79
20090019102
2009-01-15

Coefficient memory for least mean square finite impulse response filter

#80
20090019101
2009-01-15

Coefficient control for filter in magnetic media read channel

#81
20080205219
2008-08-28

JITTER MEASURING APPARATUS AND METHOD, SIGNAL PERIOD MEASURING APPARATUS AND METHOD, AND OPTICAL DISK PLAYER

#82
20080198720
2008-08-21

Optical disk reproducing apparatus

#83
20080159120
2008-07-03

Controller of optical disk device

#84
20080137722
2008-06-12

Oversampled channel response identification

#85
20080123727
2008-05-29

Apparatus and Method of Equalisation

#86
20080094261
2008-04-24

Method of code generation, and method and apparatus for code modulation

#87
20080056091
2008-03-06

MULTIVALUED INFORMATION RECORDING REPRODUCING METHOD

#88
20080043589
2008-02-21

Information reproducing apparatus and method

#89
20080037393
2008-02-14

Playback signal processing device

#90
20080019249
2008-01-24

APPARATUS FOR REPRODUCING DATA ON RECORDING MEDIUM AND METHOD FOR REPRODUCING DATA ON THE MEDIUM

#91
20070297307
2007-12-27

Write Correction Circuit and Write Correction Method

#92
20070297298
2007-12-27

Optical disk recording device which detects pre-pit distribution and shifts recording position accordingly

#93
20070286048
2007-12-13

Reproducing apparatus and method with reduced bit error rate

#94
20070250555
2007-10-25

Apparatus and method of equalisation

#95
20070239392
2007-10-11

Parameter calibrating apparatus and method for a controller

#96
20070223351
2007-09-27

METHOD FOR PROCESSING SIGNAL IN A DISK DRIVE

#97
20070206710
2007-09-06

Signal processing apparatus and a signal storage system

#98
20070195675
2007-08-23

Optical disc reproducing apparatus for correcting asymmetric errors in data reproduced from optical discs

#99
20070177292
2007-08-02

Using at least one servo channel to provide timing recovery and timing information to data channels

#100
20070127739
2007-06-07

Method of setting equalizer for audio file and method of reproducing audio file

#101
20070109950
2007-05-17

Method and apparatus for signal equalization in a light storage system

#102
20070098185
2007-05-03

High frequency signal construction method and apparatus

#103
20070097822
2007-05-03

Evaluation and adjustment methods in optical disc apparatus, and optical disc apparatus

#104
20070094549
2007-04-26

Phase error determination method and digital phase-locked loop system

#105
20070088992
2007-04-19

Phase error determination method and digital phase-locked loop system

#106
20070081438
2007-04-12

DVD−R/RW and DVD+R/RW recorders

#107
20070070865
2007-03-29

Digital partial response asymmetry compensation

#108
20070047127
2007-03-01

Dynamically adapting a read channel equalizer

#109
20070047120
2007-03-01

Dibit extraction

#110
20070041116
2007-02-22

Tap coefficient determining method and apparatus, and digital signal phase locking method and apparatus

#111
20060285459
2006-12-21

Method and apparatus for determining an optimum power level

#112
20060285241
2006-12-21

Reproducing method, reproducing apparatus, recording and reproducing apparatus, and magnetic recording medium

#113
20060262689
2006-11-23

Reproduction signal evaluation method

#114
20060262688
2006-11-23

Reproduction signal evaluation method

#115
20060262686
2006-11-23

DIGITAL DATA SLICING CIRCUIT AND SLICING METHOD

#116
20060239655
2006-10-26

Optical disc playback apparatus

#117
20060236023
2006-10-19

Record apparatus, record method, and program for writing data to optical disc in a second unit larger than a first unit

#118
20060233287
2006-10-19

Jitter sensitive maximum-sequence detection

#119
20060208766
2006-09-21

Jitter detection apparatus

#120
20060203674
2006-09-14

Record carrier, device and method for correcting signed deviation

#121
20060187800
2006-08-24

Optical disk reproducing device selectively using a channel bit frequency or a frequency that is half of the channel bit frequency

#122
20060187799
2006-08-24

Optical disk reproducing device that demodulates digital data by switching between a channel bit frequency and a frequency that is half of the channel bit frequency

#123
20060132116
2006-06-22

Waveform analyzer

#124
20060092539
2006-05-04

Determination of magnetic tape write quality employing write equalization transitions

#125
20060023583
2006-02-02

Channel optimization metrics

#126
20050270677
2005-12-08

Write compensation circuit and signal interpolation circuit of recording device

#127
20050265199
2005-12-01

Information recording medium recording method, information recording/playback apparatus, and information recording medium

#128
20050259551
2005-11-24

Information reproduction apparatus and information reproduction method

#129
20050254389
2005-11-17

Optical desk apparatus

#130
20050201241
2005-09-15

Recording medium, recording apparatus and recording method

#131
20050185558
2005-08-25

Recording medium, recording apparatus and recording method

#132
20050180286
2005-08-18

Recording medium, recording apparatus and recording method

#133
20050141378
2005-06-30

Disk apparatus and method using plural tap coefficient equalization

#134
20050094539
2005-05-05

PRML (partial response maximum likelihood) information reproducing method and information reproducing apparatus for implementing the same

#135
20050022076
2005-01-27

Phase error determination method and digital phase-locked loop system

#136
16274669
2020-02-11

Timing loop for adjacent track interference cancellation

#137
15911696
2018-12-04

Magnetic recording device capable of adjusting high frequency patterns of first and second polarities

#138
15339189
2017-12-05

Unequal error correction code in multi-track recording

#139
15281219
2017-11-14

Skew compensation in a patterned medium

#140
15193050
2018-04-17

Asynchronous interference cancellation

#141
14974985
2017-04-18

Systems and methods for real time ITI compensation in a multi-dimensional equalizer

#142
14928717
2017-01-03

Determining a HAMR laser power that reduces adjacent track interference

#143
14877290
2016-07-12

Reducing overcounting of track-level damage caused by adjacent-track and far-track interference

#144
14719052
2016-09-06

Write encroachment mitigation system

#145
14522451
2015-09-08

Data management for data storage device with different track density regions

#146
14448844
2015-08-04

Adaptive mitigation of adjacent track interference (ATI) on a recording medium

#147
14244557
2015-05-19

Viterbi decoder method and apparatus with RI detector in servo channel

#148
14227896
2015-02-03

Data storage device comprising equalizer filter and inter-track interference filter

#149
14089912
2016-01-26

Disk drive compensating for inter-track interference in analog read signal

#150
14076155
2016-05-31

Transducer write field curvature characterization and compensation