G11B20/10398 - CPC Classification Index

ClassID:

198827 ⎘

G11B20/10398 - 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 signal quality assessment jitter, timing deviations or phase and frequency errors

Sub-classes:

G11B20/10407 » {by verifying the timing of signal transitions, e.g. rising or falling edges, or by analysing signal slopes} 9
G11B20/10416 » {by verifying the timing of peak values} 2
G11B20/10425 » {by counting out-of-lock events of a PLL} 204
G11B20/10435 » {by verifying the timing of predetermined signal patterns, e.g. sync patterns} 12
G11B20/10444 » {by verifying the timing of zero crossings} 2

Recent Application in this class:

20250342858

2025-11-06

DISK DEVICE AND DISK DEVICE CONTROL METHOD

20230144494

2023-05-11

Audio signal processing device, audio signal processing method, and recording medium

20230109304

2023-04-06

Measurement device, measurement method, recording medium, and phonograph record

20190130942

2019-05-02

Clock data recovery in multilane data receiver

20170256280

2017-09-07

Optical disc apparatus controlling irradiation position based on cross-correlation value between reproduction signal and decoded signal

20160062388

2016-03-03

Selectable phase or cycle jitter detector

20150170707

2015-06-18

System and method for testing data storage systems utilizing micro-transitions

20150036472

2015-02-05

Reproducing apparatus and reproducing method

20140320995

2014-10-30

IMPLEMENTING DATA FREQUENCY AND DATA BITS PER SECTOR (BPS) CALIBRATION FOR NON-CIRCULAR DISK TRACKS

#10

20140268409

2014-09-18

Determining a skew error signal (SES) offset used to determine an SES to adjust heads in a drive unit

#11

20140211601

2014-07-31

Quality evaluation method, information recording medium, optical disc device and recording/reproducing system

#12

20140129868

2014-05-08

Selectable phase or cycle jitter detector

#13

20140016226

2014-01-16

Determining a skew error signal (SES) offset used to determine an SES to adjust heads in a drive unit

#14

20130188463

2013-07-25

Bi-directional pattern dependent noise prediction

#15

20130107690

2013-05-02

Information recording/reproducing device and method

#16

20120224466

2012-09-06

Semiconductor device, write strategy generating method, and write strategy generating program

#17

20120201112

2012-08-09

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

#18

20120194937

2012-08-02

Magnetic recording apparatus and recording method of magnetic recording apparatus

#19

20120194936

2012-08-02

Evaluation method of perpendicular magnetic recording medium and manufacturing method of perpendicular magnetic recording medium

#20

20120162805

2012-06-28

Disk storage device, controller of the same, controlling method performed by the same, and electronic device

#21

20120075739

2012-03-29

High-rate transition control code for magnetic recording channels

#22

20120063284

2012-03-15

Systems and methods for track to track phase alignment

#23

20120063024

2012-03-15

Systems and methods for handling sector gaps in inter-track interference compensation

#24

20120063023

2012-03-15

Systems and methods for block-wise inter-track interference compensation

#25

20120063022

2012-03-15

Systems and methods for inter-track interference compensation

#26

20120019945

2012-01-26

Method and system for measuring noise of a magnetic head

#27

20120002528

2012-01-05

Variable delay circuit, recording apparatus, and delay amount calibration method

#28

20110176401

2011-07-21

System and method for suppressing jitter

#29

20110149704

2011-06-23

Signal evaluation method and signal evaluation apparatus

#30

20110128646

2011-06-02

Synchronized rewriting of data

#31

20110103524

2011-05-05

Signal receiving apparatus and signal transmitting system

#32

20110085427

2011-04-14

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

#33

20110085262

2011-04-14

DLC-head offset compensation while writing

#34

20110075289

2011-03-31

High-rate transition control code for magnetic recording channels

#35

20100328800

2010-12-30

Magnetic recording apparatus and magnetic recording evaluating apparatus

#36

20100290328

2010-11-18

Reproducing power adjusting method, optical information recording/reproducing apparatus and information recording media

#37

20100002556

2010-01-07

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

#38

20090225639

2009-09-10

Signal evaluation method and signal evaluation apparatus

#39

20090002868

2009-01-01

Read after write enhancement for bit patterned media

#40

20050201239

2005-09-15

Optical disk recording/playback apparatus and optical disk evaluation method using a temporary memory

#41

18889827

2025-07-29

Harmonic sensor phase error detection for data storage devices

#42

16274669

2020-02-11

Timing loop for adjacent track interference cancellation

#43

14244557

2015-05-19

Viterbi decoder method and apparatus with RI detector in servo channel

#44

14094235

2017-09-12

Precompensation based on nearby data

#45

14076155

2016-05-31

Transducer write field curvature characterization and compensation

#46

13896112

2014-11-04

Systems and methods for optimizing optical recording