G11B2220/252 - CPC Classification Index

ClassID:

199293 ⎘

G11B2220/252 - CPC Classification

Classification description:

Record carriers by type; Disc-shaped record carriers characterised in that the disc is based on a specific recording technology; Magnetic discs Patterned or quantised magnetic media, i.e. bits are stored in predefined single domain elements

Recent Application in this class:

20220044700

2022-02-10

On head microelectronics for write synchronization

20200365176

2020-11-19

On head microelectronics for write synchronization

20180315445

2018-11-01

On head microelectronics for write synchronization

20180082706

2018-03-22

On head microelectronics for write synchronization

20160148635

2016-05-26

Heat assisted magnetic recording for bit-patterned media

20130188274

2013-07-25

Communication path latency measurement using capacitive coupling

20130128372

2013-05-23

Method and system for error checking in bit-patterned media

20130033777

2013-02-07

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

20130010382

2013-01-10

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

#10

20130003215

2013-01-03

Writing a reference pattern to bit patterned media

#11

20120224277

2012-09-06

Interleaved automatic gain control for asymmetric data signals

#12

20120194939

2012-08-02

PATTERNED MEDIUM INSPECTION METHOD AND INSPECTION APPARATUS

#13

20120194937

2012-08-02

Magnetic recording apparatus and recording method of magnetic recording apparatus

#14

20120147493

2012-06-14

Phase calibration system for disk drives

#15

20120099216

2012-04-26

System, method and apparatus for storage architecture for bit patterned media using both erase band and shingled magnetic recording

#16

20120036395

2012-02-09

Detecting data-write errors

#17

20110292546

2011-12-01

TIMING TRACK FOR MASTER TEMPLATE SUBSTRATE

#18

20110286125

2011-11-24

Patterned-media magnetic recording disk drive with data island misplacement information in the servo sectors

#19

20110249355

2011-10-13

Device and method for error detection

#20

20110141610

2011-06-16

Write synchronization in patterned magnetic media

#21

20110080670

2011-04-07

On head microelectronics for write synchronization

#22

20110058274

2011-03-10

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

#23

20110038072

2011-02-17

BPM recording with more than one dot per bit

#24

20110019300

2011-01-27

Pulse writing for bit patterned and continuous media recording

#25

20100328800

2010-12-30

Magnetic recording apparatus and magnetic recording evaluating apparatus

#26

20100302669

2010-12-02

Transducer design with a sensor close to write pole

#27

20100276390

2010-11-04

METHOD OF MASTERING PRECISE DOT ARRAY FOR BIT-PATTERNED MEDIA

#28

20100238584

2010-09-23

Simultaneous bit pattern determination and head positional information detection on patterned media

#29

20100238578

2010-09-23

METHOD FOR GENERATING WRITE CLOCK SIGNAL IN MAGNETIC DISK DRIVE

#30

20100238577

2010-09-23

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

#31

20100238576

2010-09-23

Magnetic bit-patterned disk and disk drive

#32

20100211830

2010-08-19

Multi-input multi-output read-channel architecture for recording systems

#33

20100118429

2010-05-13

Reduced read/write transition overhead for storage media

#34

20100110573

2010-05-06

Synchronous writing with timing error detection in bit patterned media disk drives

#35

20100103554

2010-04-29

MEDIA ACCESS METHOD AND MAGNETIC STORAGE APPARATUS

#36

20100046109

2010-02-25

INFORMATION STORAGE APPARATUS AND REPRODUCTION METHOD

#37

20100027605

2010-02-04

Off-track aware equalizer design for bit-patterned media

#38

20090296255

2009-12-03

Phase adjusting device, magnetic storage medium, and storage device

#39

20090251816

2009-10-08

Patterned medium inspection method and inspection device

#40

20090244765

2009-10-01

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

#41

20090237829

2009-09-24

INFORMATION RECORDING MEDIUM

#42

20090046547

2009-02-19

System, method, and apparatus for characterizing, tracking, and segregating known defective disk regions on patterned disks

#43

20090009901

2009-01-08

Retry and re-read for write synchronization

#44

20090003144

2009-01-01

Method and system for error checking in a bit-patterned media

#45

20090002868

2009-01-01

Read after write enhancement for bit patterned media

#46

20090002867

2009-01-01

Alternative sensors for tracking and timing in bit patterned media

#47

20080068754

2008-03-20

Apparatus system and method for variable data density patterned media

#48

20060092541

2006-05-04

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

#49

14861369

2017-04-18

Selective powering techniques for heat assisted magnetic recording