G11B5/59616 - CPC Classification Index

ClassID:

197878 ⎘

G11B5/59616 - CPC Classification

Classification description:

Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor; Disposition or mounting of heads relative to record carriers with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks; Circuits Synchronisation; Clocking

Recent Application in this class:

20220399037

2022-12-15

Synchronous writing of patterned media

20220351750

2022-11-03

Write timing for RRO field in a constant density servo system

20220059129

2022-02-24

Write timing for RRO field in a constant density servo system

20190259415

2019-08-22

Magnetic disk controlling device capable of tracking different servo pattern frequencies

20190081642

2019-03-14

Data storage device encoding and interleaving codewords to improve trellis sequence detection

20190068221

2019-02-28

Data storage device encoding and interleaving codewords to improve trellis sequence detection

20170206926

2017-07-20

Systems and methods for missed media sector alignment

20160180873

2016-06-23

Magnetic disk device and determining method of crossing a zone boundary

20150279398

2015-10-01

Locking a disk-locked clock using timestamps of successive servo address marks in a spiral servo track

#10

20150243312

2015-08-27

Clock accuracy determining method and clock accuracy determining device

#11

20150243311

2015-08-27

Systems and methods for synchronization hand shaking in a storage device

#12

20150055239

2015-02-26

DATA STORAGE APPARATUS AND METHOD FOR CORRECTING REPEATABLE RUNOUT

#13

20140168810

2014-06-19

Systems and methods for adaptive threshold pattern detection

#14

20140104719

2014-04-17

Data recovery using no sync mark retry

#15

20130321947

2013-12-05

Write synchronization in bit patterned media using auxiliary read head

#16

20130201576

2013-08-08

Storage device having calibration circuitry providing programmable phase update values

#17

20130182349

2013-07-18

Information recording apparatus and information writing method

#18

20130155826

2013-06-20

Data recording medium, method for generating a reference clock signal, and data storage device

#19

20130033777

2013-02-07

System and method of synchronized writing on bit patterned media with read-write offset

#20

20130010383

2013-01-10

Patterned media with an alternating series of concentric servo zones and overlap zones

#21

20130003215

2013-01-03

Writing a reference pattern to bit patterned media

#22

20130003214

2013-01-03

Systems and methods for inter-track alignment

#23

20120281305

2012-11-08

Systems and methods for servo data detection

#24

20120236428

2012-09-20

Systems and methods for sync mark detection

#25

20120194938

2012-08-02

METHOD OF WRITING INITIAL CLOCK PATTERNS AND MAGNETIC DISK DRIVE

#26

20120120782

2012-05-17

Circuit for generating tracking error signal

#27

20120087224

2012-04-12

METHOD AND APPARATUS FOR DETECTING SYNC DATA OF READ DATA IN A DISK DRIVE

#28

20120082015

2012-04-05

Thermally-assisted recording (TAR) patterned-media disk drive with optical detection of write synchronization and servo fields

#29

20110292535

2011-12-01

Methods and apparatus for synchronization mark detection based on a position of an extreme distance metric

#30

20110211277

2011-09-01

DETECTING CIRCUIT AND INSPECTING APPARATUS

#31

20110209026

2011-08-25

Systems and methods for data recovery using enhanced sync mark location

#32

20110205653

2011-08-25

Systems and Methods for Data Recovery

#33

20110141603

2011-06-16

Head/disk contact determination

#34

20110102930

2011-05-05

Waveform based bit detection for bit patterned media

#35

20110102929

2011-05-05

DISK DRIVE AND METHOD OF TIMING CONTROL FOR SERVO-DATA DETECTION

#36

20110058274

2011-03-10

Hard-disk drive and control method for magnetic recording on a patterned medium of the hard-disk drive

#37

20110038073

2011-02-17

Using readback signals to estimate radial location on a rotating storage device

#38

20110038072

2011-02-17

BPM recording with more than one dot per bit

#39

20110007415

2011-01-13

METHOD AND APPARATUS FOR DETECTING SYNC DATA OF READ DATA IN A DISK DRIVE

#40

20100328804

2010-12-30

MAGNETIC DISK STORAGE DEVICE AND METHOD CONTROLLING OF MAGNETIC DISK STORAGE DEVICE

#41

20100284109

2010-11-11

Method and apparatus for estimating touchdown of a slider in a hard disk drive

#42

20100246048

2010-09-30

Preamplifier and method for synchronization with bit patterned media

#43

20100238578

2010-09-23

METHOD FOR GENERATING WRITE CLOCK SIGNAL IN MAGNETIC DISK DRIVE

#44

20100238577

2010-09-23

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

#45

20100226036

2010-09-09

DISK DRIVE HAVING MAGNETIC DISK OF PATTERNED MEDIA TYPE

#46

20100149675

2010-06-17

Skip block writing for bit patterned media write synchronization

#47

20100142084

2010-06-10

Magnetic medium having an artificial pattern structure using a gradient of a magnetization reversal field and a method of use thereof

#48

20100128384

2010-05-27

Magnetic recording medium and magnetic recording apparatus

#49

20100118690

2010-05-13

Systems and methods for sector address mark detection

#50

20100118433

2010-05-13

WRITE PRECOMPENSATION SYSTEM

#51

20100118428

2010-05-13

Interspersed phase-locked loop fields for data storage media synchronization

#52

20100118427

2010-05-13

ELIMINATING SECTOR SYNCHRONIZATION FIELDS FOR BIT PATTERNED MEDIA

#53

20100118426

2010-05-13

WRITE CLOCK CONTROL SYSTEM FOR MEDIA PATTERN WRITE SYNCHRONIZATION

#54

20100103551

2010-04-29

Data sector phase correction method and disk drive apparatus using the same

#55

20100073801

2010-03-25

Magnetic recording device, control device, and magnetic recording device control method

#56

20100061018

2010-03-11

Thermal assisted recording (TAR) disk drive capable of controlling the write pulses

#57

20090284858

2009-11-19

Magnetic recording apparatus and clock signal generating method

#58

20090244765

2009-10-01

Patterned media magnetic recording disk drive with write clock phase adjustment for data pattern circumferential misalignment

#59

20090195906

2009-08-06

Method and system for adaptive timing recovery

#60

20090190246

2009-07-30

Method of reading data stored in a data storage device and data storage device that performs a data read retry operation

#61

20090116352

2009-05-07

CLOCK GENERATING APPARATUS, MAGNETIC DISK APPARATUS, AND WRITE SYNCHRONIZATION METHOD

#62

20090097150

2009-04-16

Interpolated just-in-time seek trajectories

#63

20090091854

2009-04-09

Write timing system for hard disk drives with bit patterned media

#64

20090002868

2009-01-01

Read after write enhancement for bit patterned media

#65

20090002867

2009-01-01

Alternative sensors for tracking and timing in bit patterned media

#66

20090002865

2009-01-01

Zone based timing recovery for bit patterned media

#67

20080310273

2008-12-18

Circuit for generating tracking error signal

#68

20080231984

2008-09-25

Apparatus and method to minimize amplitude variations associated with media/head response characteristics in servo writing of perpendicular magnetic recording

#69

20080180826

2008-07-31

METHOD FORMING SERVO SYNC MARK PATTERNS AND PREVENTING WRITE FAULTS IN HARD DISK DRIVE

#70

20080174900

2008-07-24

High-order hybrid actuator controller

#71

20080080082

2008-04-03

Synchronization for data communication

#72

20080074773

2008-03-27

Clock extraction method for patterned medium, clock extraction circuit for patterned medium and patterned medium

#73

20080068754

2008-03-20

Apparatus system and method for variable data density patterned media

#74

20080049355

2008-02-28

Data sector phase correction method and disk drive apparatus using the same

#75

20080019031

2008-01-24

Method and apparatus adjusting reference clock frequency and disk drive using same

#76

20070273996

2007-11-29

Reduced convolution for repetitive disturbance rejection

#77

20070236824

2007-10-11

Magnetic recording medium and magnetic recording/reproducing apparatus

#78

20070236823

2007-10-11

Magnetic recording medium and magnetic recording/reproducing apparatus

#79

20070236822

2007-10-11

Magnetic recording medium and magnetic recording/reproducing apparatus

#80

20070230032

2007-10-04

Magnetic recording medium and magnetic recording/reproducing apparatus

#81

20070230031

2007-10-04

Magnetic recording medium and magnetic recording/reproducing apparatus

#82

20070230030

2007-10-04

MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS

#83

20070230029

2007-10-04

Magnetic recording medium and magnetic recording/reproducing apparatus

#84

20070230028

2007-10-04

Magnetic recording medium and magnetic recording/reproducing apparatus

#85

20070230023

2007-10-04

Magnetic recording medium and magnetic recording/reproducing apparatus

#86

20070223134

2007-09-27

Magnetic recording medium and magnetic recording/reproducing apparatus

#87

20070223133

2007-09-27

MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS

#88

20070217058

2007-09-20

Magnetic recording medium and magnetic recording/reproducing apparatus

#89

20070217057

2007-09-20

Magnetic recording medium and magnetic recording/reproducing apparatus

#90

20070217056

2007-09-20

MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS

#91

20070139807

2007-06-21

Media event timer and methods for use therewith

#92

20070139806

2007-06-21

Read/write timing generator and methods for use therewith

#93

20060250723

2006-11-09

Disk drive clock tracking circuit, error compensation circuit and method

#94

20060203370

2006-09-14

Data storage device and write processing method for data storage device

#95

20060203369

2006-09-14

Medium storage device and medium rotation synchronization processing method for medium storage device

#96

20060176599

2006-08-10

Magnetic recording disk drive with patterned media and compensation for write-clock timing error caused by rotational disturbances

#97

20060152845

2006-07-13

Magnetic recording medium and magnetic recording/reproducing apparatus

#98

20060092541

2006-05-04

Magnetic recording disk drive with patterned media and circuit for generating timing pulses from the pattern

#99

20050122624

2005-06-09

Method of forming a disc pack

#100

17391842

2022-12-20

Data storage device self-servo writing by compensating for corrupted spiral track crossing signal

#101

17345759

2022-10-18

Synchronous writing of patterned media

#102

17330675

2022-07-12

Data storage device synchronizing first channel based on sync mark detected in second channel

#103

16051234

2019-12-31

Disc locked clock-based servo timing

#104

15798541

2018-07-10

Data storage drive with low-latency ports coupling multiple servo control processors

#105

15601019

2018-01-09

Primary and secondary servo timing gates used with simultaneously operating readers

#106

14725858

2016-02-23

Template misalignment and eccentricity error compensation for a patterned medium

#107

14526336

2015-08-18

Magnetic recording disk drive with write current overshoot amplitude (OSA) responsive to data transitions

#108

14515220

2015-08-11

Integrated servo field for memory device

#109

14202739

2015-02-03

Bit-locked interface for magnetic recording

#110

14194069

2015-04-07

System and method for power saving modes in multi-sensor magnetic recording

#111

14137314

2015-04-21

Disk drive measuring reader/writer gap by measuring fractional clock cycle over disk radius

#112

14108282

2014-10-14

Systems and methods for sync mark based read offset detection

#113

13797953

2015-06-02

Disk drive initializing servo read channel by reading data preceding servo preamble during access operation