ClassID:

198813

G11B20/10268 - 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 bit detection or demodulation methods

Sub-classes:
Recent Application in this class:
#1
20250273242
2025-08-28

Global Secondary Path Locking Technique Enabling High Read Concurrency For Read-Mostly Workloads

#2
20240265945
2024-08-08

Reader bias based locking technique enabling high read concurrency for read-mostly workloads

#3
20230206953
2023-06-29

Reader bias based locking technique enabling high read concurrency for read-mostly workloads

#4
20220406331
2022-12-22

Magnetic disk device and method

#5
20220044701
2022-02-10

Reader bias based locking technique enabling high read concurrency for read-mostly workloads

#6
20220020394
2022-01-20

Optical disk device

#7
20210327469
2021-10-21

Magnetic disk device capable of correcting servo demodulation position

#8
20210327468
2021-10-21

Magnetic disk device capable of correcting servo demodulation position

#9
20210320663
2021-10-14

Drive substrate for camera and broadcast camera

#10
20210287716
2021-09-16

Global secondary path locking technique enabling high read concurrency for read-mostly workloads

#11
20210224355
2021-07-22

Machine-learning optimization of data reading and writing

#12
20200411049
2020-12-31

Reader bias based locking technique enabling high read concurrency for read-mostly workloads

#13
20200286517
2020-09-10

Magnetic disk device capable of correcting servo demodulation position

#14
20200185004
2020-06-11

Magnetic disk device and linearity error correction method

#15
20200152236
2020-05-14

Reader bias based locking technique enabling high read concurrency for read-mostly workloads

#16
20200097455
2020-03-26

Global secondary path locking technique enabling high read concurrency for read-mostly workloads

#17
20190347160
2019-11-14

Erasure code-based partial write-in

#18
20190251994
2019-08-15

Magnetic data processing device and magnetic data processing method

#19
20190114307
2019-04-18

Machine-learning optimization of data reading and writing

#20
20190088286
2019-03-21

Phase slip recovery

#21
20180130493
2018-05-10

Bimodal modulation

#22
20160217821
2016-07-28

Bimodal modulation

#23
20160189734
2016-06-30

Allowing fast data zone switches on data storage devices

#24
20160124811
2016-05-05

Signal processing device, magnetic information playback device, and signal processing method

#25
20160118074
2016-04-28

Holographic data reproduction apparatus and method thereof

#26
20160055872
2016-02-25

Methods for storing and accessing address information in a servo layer of a storage medium

#27
20160035372
2016-02-04

Reading narrow data tracks with multiple wide readers

#28
20160004221
2016-01-07

Methods and apparatus for coherent holographic data channels

#29
20150380049
2015-12-31

Method for determining bit rate and apparatus therefor

#30
20150310890
2015-10-29

Method of predicting a noise component associated with a readback signal from a dedicated servo medium, noise predictor thereof, and hard disk drive system

#31
20150310889
2015-10-29

Run-length limited (RLL) codes

#32
20150228303
2015-08-13

Read channel sampling utilizing two quantization modules for increased sample bit width

#33
20150199991
2015-07-16

Multiple track detection

#34
20150195481
2015-07-09

Reproducing device, control device, control method, and computer-readable storage medium

#35
20150149860
2015-05-28

Iterative data storage read channel architecture

#36
20150143208
2015-05-21

Signal quality evaluation apparatus, signal quality evaluation method, and reproducing device

#37
20150081626
2015-03-19

Systems and methods for recovered data stitching

#38
20150062730
2015-03-05

Array-reader based magnetic recording systems with quadrature amplitude modulation

#39
20150043321
2015-02-12

Channel bitword processor, PRML decoder, and optical information recording/reproducing device

#40
20150043098
2015-02-12

Multi-sensor data transducer

#41
20150029608
2015-01-29

Array-reader based magnetic recording systems with frequency division multiplexing

#42
20150012800
2015-01-08

Systems and methods for correlation based data alignment

#43
20150003225
2015-01-01

Signal processing apparatus capable of suppressing non-linear noise component during reading optical recording medium

#44
20140362461
2014-12-11

Systems and methods for floating variance branch metric calculation

#45
20140347761
2014-11-27

Data decoding control apparatus, data storage apparatus and data decoding method

#46
20140340778
2014-11-20

Data duplication in tape drives

#47
20140300985
2014-10-09

Method of processing address information for a data storage device, and storage medium, modulator, demodulator, and data storage device

#48
20140268400
2014-09-18

Systems and methods for loop feedback

#49
20140268392
2014-09-18

Data detection in adjacent tracks

#50
20140226230
2014-08-14

Adaptive soft-output detector for magnetic tape read channels

#51
20140126083
2014-05-08

Tape storage device having at least one redundant read data element

#52
20140104720
2014-04-17

Enhanced quality-sorting scheduler

#53
20140101483
2014-04-10

Systems and methods for modified quality based priority scheduling during iterative data processing

#54
20140071558
2014-03-13

Power management for storage device read channel

#55
20140068395
2014-03-06

Systems and methods for selectable positive feedback data processing

#56
20140063636
2014-03-06

Systems and methods for conditional positive feedback data decoding

#57
20140056116
2014-02-27

Decoding method and decoding device

#58
20140032999
2014-01-30

Systems and methods for information divergence based data processing

#59
20140032998
2014-01-30

Systems and methods for improved short media defect detection

#60
20140025904
2014-01-23

Systems and methods for gate aware iterative data processing

#61
20140019695
2014-01-16

Systems and methods for rapid erasure retry decoding

#62
20140006878
2014-01-02

Systems and methods for enhanced accuracy NPML calibration

#63
20130335848
2013-12-19

Adaptive soft-output detector for magnetic tape read channels

#64
20130332790
2013-12-12

LDPC Decision Driven Equalizer Adaptation

#65
20130329312
2013-12-12

Multi-zone servo processor

#66
20130290798
2013-10-31

Systems and methods for short media defect detection using non-binary coded information

#67
20130283113
2013-10-24

Systems and methods for back step data decoding

#68
20130271823
2013-10-17

Modulated signal detecting apparatus and modulated signal detecting method

#69
20130250447
2013-09-26

Determining inter-track coherence using output signals from first and second tracks

#70
20130235484
2013-09-12

Multi-path data processing system

#71
20130229725
2013-09-05

System and method for reading a magnetic tape

#72
20130208377
2013-08-15

Systems and methods for adaptive decoder message scaling

#73
20130205185
2013-08-08

Systems and methods for low latency media defect detection

#74
20130182347
2013-07-18

Signal processing apparatus, signal processing method, and magnetic disk apparatus

#75
20130151923
2013-06-13

Systems and methods for scalable data processing shut down

#76
20130111306
2013-05-02

Detector with soft pruning

#77
20130106637
2013-05-02

Oversampled data processing circuit with multiple detectors

#78
20130063835
2013-03-14

Systems and methods for generating predictable degradation bias

#79
20120293885
2012-11-22

Position demodulator and position demodulation method

#80
20120213048
2012-08-23

Method and apparatus for detecting land pre-pits

#81
20120106607
2012-05-03

Systems and methods for variable thresholding in a pattern detector

#82
20110249354
2011-10-13

DISK STORAGE APPARATUS AND METHOD FOR SERVO CONTROLLING

#83
20110032632
2011-02-10

Timing recovery detector

#84
20100322353
2010-12-23

Nonlinear post-processors for channels with signal-dependent noise

#85
18585362
2025-03-18

Digital timing recovery in hard disk drive read channel for preamble reduction

#86
17885310
2023-07-04

Magnetic disk device that corrects position of head by demodulation

#87
16290431
2020-01-14

Reader bias based locking technique enabling high read concurrency for read-mostly workloads

#88
16236029
2019-10-22

Signal detection method of staggered two-dimensional bit-patterned media, recording medium and apparatus for performing the method

#89
15720036
2018-03-27

System and method for providing an output signal without or with reduced jitter based upon an input signal notwithstanding phase changes in a clock signal

#90
14724993
2016-06-21

Relaxing media design constraints with two-dimensional magnetic recording

#91
14446047
2015-08-11

Reading narrow data tracks with multiple wide readers

#92
14304347
2015-06-30

Disk drive configuring one-dimensional and two-dimensional recording areas based on read element spacing

#93
14062808
2015-03-03

Systems and methods for data dependent inter-track interference cancellation