JP2003022625A5 - - Google Patents

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Publication number
JP2003022625A5
JP2003022625A5 JP2001208681A JP2001208681A JP2003022625A5 JP 2003022625 A5 JP2003022625 A5 JP 2003022625A5 JP 2001208681 A JP2001208681 A JP 2001208681A JP 2001208681 A JP2001208681 A JP 2001208681A JP 2003022625 A5 JP2003022625 A5 JP 2003022625A5
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JP
Japan
Prior art keywords
data
sampling
preamble pattern
signal processing
processing circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2001208681A
Other languages
English (en)
Japanese (ja)
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JP2003022625A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2001208681A priority Critical patent/JP2003022625A/ja
Priority claimed from JP2001208681A external-priority patent/JP2003022625A/ja
Priority to US10/038,833 priority patent/US6785074B2/en
Publication of JP2003022625A publication Critical patent/JP2003022625A/ja
Priority to US10/924,815 priority patent/US7142379B2/en
Publication of JP2003022625A5 publication Critical patent/JP2003022625A5/ja
Pending legal-status Critical Current

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JP2001208681A 2001-07-10 2001-07-10 磁気記録用プリアンブルパターン及び磁気記録装置 Pending JP2003022625A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2001208681A JP2003022625A (ja) 2001-07-10 2001-07-10 磁気記録用プリアンブルパターン及び磁気記録装置
US10/038,833 US6785074B2 (en) 2001-07-10 2002-01-08 Preamble pattern and magnetic recording system using the pattern
US10/924,815 US7142379B2 (en) 2001-07-10 2004-08-25 Preamble pattern and magnetic recording system using the pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001208681A JP2003022625A (ja) 2001-07-10 2001-07-10 磁気記録用プリアンブルパターン及び磁気記録装置

Publications (2)

Publication Number Publication Date
JP2003022625A JP2003022625A (ja) 2003-01-24
JP2003022625A5 true JP2003022625A5 (enExample) 2005-05-19

Family

ID=19044459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001208681A Pending JP2003022625A (ja) 2001-07-10 2001-07-10 磁気記録用プリアンブルパターン及び磁気記録装置

Country Status (2)

Country Link
US (2) US6785074B2 (enExample)
JP (1) JP2003022625A (enExample)

Families Citing this family (19)

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Publication number Priority date Publication date Assignee Title
US7085121B2 (en) 2002-10-21 2006-08-01 Hrl Laboratories, Llc Variable capacitance membrane actuator for wide band tuning of microstrip resonators and filters
KR100519805B1 (ko) * 2002-11-26 2005-10-11 한국전자통신연구원 다중레벨 변조 기법을 위한 타이밍 동기루프 제어 장치를이용한 심볼 타이밍 동기 장치 및 그 방법
EP1566806A4 (en) * 2002-11-29 2007-09-05 Fujitsu Ltd DATA PLAYING DEVICE WITH PHASE DIFFERENTIAL CORRECTION DEVICE AND DATA HEAD DETECTOR
US7002761B1 (en) * 2003-03-27 2006-02-21 Marvell International Ltd. Demodulation compensation for spiral servo tracks in hard disk drives
CN100466067C (zh) * 2003-08-29 2009-03-04 富士通株式会社 数据再现设备
US7595948B1 (en) * 2003-10-24 2009-09-29 Marvell International Ltd. Thermal asperity detection for perpendicular magnetic recording
JP2006179128A (ja) * 2004-12-22 2006-07-06 Toshiba Corp 磁気記録媒体、磁気記録再生装置および磁気記録媒体を製造するためのスタンパ
US7889823B2 (en) * 2005-03-03 2011-02-15 Seagate Technology Llc Timing recovery in a parallel channel communication system
US7768732B2 (en) * 2005-04-12 2010-08-03 Stmicroelectronics, Inc. Gain controller for a gain loop of a read channel and related gain loops, read channels, systems, and methods
US7773324B2 (en) * 2005-04-12 2010-08-10 Stmicroelectronics, Inc. Phase acquisition loop for a read channel and related read channel, system, and method
US7564931B2 (en) * 2005-05-10 2009-07-21 Seagate Technology Llc Robust maximum-likelihood based timing recovery
US7602567B2 (en) * 2007-06-28 2009-10-13 Lsi Corporation Feed-forward DC restoration in a perpendicular magnetic read channel
US8569221B2 (en) * 2007-08-30 2013-10-29 Kimberly-Clark Worldwide, Inc. Stain-discharging and removing system
US8159768B1 (en) 2008-06-25 2012-04-17 Western Digital Technologies, Inc. Detecting a servo address mark (SAM) in a servo field sync-up operation
US8203800B2 (en) * 2009-03-05 2012-06-19 Western Digital (Fremont), Llc Servo design in data storage media
JP4724241B2 (ja) * 2009-07-09 2011-07-13 株式会社東芝 ディスク記憶装置及びデータ検出方法
US8730605B1 (en) * 2011-01-13 2014-05-20 Marvell International Ltd. Write zero phase start for phase synchronization in bit patterned recording
CN106774801A (zh) 2016-12-09 2017-05-31 郑州云海信息技术有限公司 一种硬盘错峰启动系统
US11979163B2 (en) * 2022-10-03 2024-05-07 Western Digital Technologies, Inc. Oversampled phase lock loop in a read channel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3778549D1 (de) * 1987-11-13 1992-05-27 Ibm Schnelle takterfassung fuer partial-response-signalisierung.
US5258933A (en) 1992-08-27 1993-11-02 Quantum Corporation Timing control for PRML class IV sampling data detection channel
US5552942A (en) 1994-08-23 1996-09-03 Quantum Corporation Zero phase start optimization using mean squared error in a PRML recording channel
JPH08315517A (ja) 1995-05-19 1996-11-29 Toshiba Corp ディスク記録再生装置のデータ再生処理システム
JP2000021096A (ja) 1998-07-03 2000-01-21 Hitachi Ltd 磁気ディスク装置及びそれに用いる半導体デバイス
ES2332873T3 (es) * 2000-05-16 2010-02-15 Koninklijke Philips Electronics N.V. Soporte de informacion y dispositivos y metodo para explorar el soporte de informacion.

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