DE69433095D1 - Plattenlaufwerk mit adaptivem lese-/schreibkanal zur optimierung der leistung zwischen kopf, medium und kanal - Google Patents

Plattenlaufwerk mit adaptivem lese-/schreibkanal zur optimierung der leistung zwischen kopf, medium und kanal

Info

Publication number
DE69433095D1
DE69433095D1 DE69433095T DE69433095T DE69433095D1 DE 69433095 D1 DE69433095 D1 DE 69433095D1 DE 69433095 T DE69433095 T DE 69433095T DE 69433095 T DE69433095 T DE 69433095T DE 69433095 D1 DE69433095 D1 DE 69433095D1
Authority
DE
Germany
Prior art keywords
channel
head
medium
disk drive
optimize performance
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.)
Expired - Fee Related
Application number
DE69433095T
Other languages
English (en)
Other versions
DE69433095T2 (de
Inventor
Michael Mcneil
W Davis
Larry Koudele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maxtor Corp
Original Assignee
Maxtor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maxtor Corp filed Critical Maxtor Corp
Publication of DE69433095D1 publication Critical patent/DE69433095D1/de
Application granted granted Critical
Publication of DE69433095T2 publication Critical patent/DE69433095T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10481—Improvement or modification of read or write signals optimisation methods
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • G11B20/182—Testing using test patterns
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording
DE69433095T 1993-12-01 1994-12-01 Plattenlaufwerk mit adaptivem lese-/schreibkanal zur optimierung der leistung zwischen kopf, medium und kanal Expired - Fee Related DE69433095T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16049693A 1993-12-01 1993-12-01
PCT/US1994/013826 WO1995015552A1 (en) 1993-12-01 1994-12-01 Disk drive employing adaptive read/write channel for optimizing head-media-channel performance
US160496 2002-05-31

Publications (2)

Publication Number Publication Date
DE69433095D1 true DE69433095D1 (de) 2003-10-02
DE69433095T2 DE69433095T2 (de) 2004-06-03

Family

ID=22577105

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69433095T Expired - Fee Related DE69433095T2 (de) 1993-12-01 1994-12-01 Plattenlaufwerk mit adaptivem lese-/schreibkanal zur optimierung der leistung zwischen kopf, medium und kanal

Country Status (6)

Country Link
US (2) US5995305A (de)
EP (1) EP0740830B1 (de)
JP (1) JPH09507603A (de)
AU (1) AU1430595A (de)
DE (1) DE69433095T2 (de)
WO (1) WO1995015552A1 (de)

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US6178054B1 (en) * 1998-06-05 2001-01-23 Seagate Technology Llc Selecting write fault thresholds by head and disc location in a disc drive
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JP4077993B2 (ja) 1999-07-30 2008-04-23 株式会社日立グローバルストレージテクノロジーズ 性能評価方法及び性能評価装置並びにこれらを用いた記録再生装置
US7002890B2 (en) * 2000-03-29 2006-02-21 Lsi Logic Corporation High density analog recording using write symbols having distinguishable readout waveforms
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US6781780B1 (en) * 2001-06-21 2004-08-24 Western Digital Technologies, Inc. Method and system for preventing data loss from an off-track write condition in a disk drive by rewriting data buffered from an adjacent track
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US6771441B2 (en) * 2001-08-09 2004-08-03 Seagate Technology Llc Track mis-registration measurement for a disc drive
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JP2003167796A (ja) * 2001-11-29 2003-06-13 Hitachi Ltd ファイバーチャネルに接続されるデバイス、及びこのデバイスのマージンテスト方法、並びに、ファイバーチャネルに接続されるデバイスを有するシステムの障害部位特定方法
US6995943B1 (en) * 2001-12-11 2006-02-07 Maxtor Corporation Off-track error recovery method and apparatus for disk drive
KR100688492B1 (ko) * 2002-05-11 2007-03-09 삼성전자주식회사 하드 디스크 드라이브를 위한 오프 트랙 발생 예방 방법및 장치
US6954326B2 (en) * 2002-05-23 2005-10-11 Seagate Technology Llc Dynamically improving data storage device performance
US7230781B2 (en) * 2003-01-13 2007-06-12 Iomega Corporation Information storage system, and a method of operating it
US7583458B2 (en) * 2004-07-28 2009-09-01 Agere Systems Inc. Channel optimization metrics
US7353010B1 (en) 2004-12-22 2008-04-01 Atheros Communications, Inc. Techniques for fast automatic gain control
US7209305B2 (en) * 2005-01-06 2007-04-24 Hitachi Global Storage Technologies Netherlands, B.V. Method for determining unique write inhibit thresholds for individual heads for maximizing file servo performance
TWI299490B (en) * 2005-03-17 2008-08-01 Via Tech Inc Method and device for protecting a servo in reading signals on a defect disc
KR100712510B1 (ko) * 2005-05-09 2007-04-27 삼성전자주식회사 하드디스크 드라이브의 기록강도 제어 방법 및 이에 적합한프로그램을 기록한 기록 매체
US7747907B2 (en) * 2005-09-20 2010-06-29 Seagate Technology Llc Preventive recovery from adjacent track interference
US7567397B2 (en) * 2006-09-11 2009-07-28 Hitachi Global Storage Technologies Netherlands B.V. Adjacent Track Interference (ATI) identification methodology
US7561358B2 (en) * 2006-11-16 2009-07-14 Samsung Electronics Co., Ltd. Multi-register read channel optimization
JP2008276875A (ja) * 2007-04-27 2008-11-13 Fujitsu Ltd 磁気ディスク装置によるデータの書き込み方法、オフトラックマージン設定方法、磁気ディスク装置、および、オフトラックマージン設定装置
US8203800B2 (en) * 2009-03-05 2012-06-19 Western Digital (Fremont), Llc Servo design in data storage media
KR101551620B1 (ko) * 2009-04-06 2015-09-09 시게이트 테크놀로지 엘엘씨 연속 시간 필터의 필터 계수 조절 방법 및 이에 따른 데이터 저장 장치
US8964321B2 (en) 2013-05-31 2015-02-24 International Business Machines Corporation Iterative data storage read channel architecture having dropout mitigation
US9214187B2 (en) 2013-05-31 2015-12-15 International Business Machines Corporation Cycle-slip resilient iterative data storage read channel architecture
US8988798B2 (en) 2013-05-31 2015-03-24 International Business Machines Corporation Iterative data storage read channel architecture
US9070377B1 (en) * 2013-12-12 2015-06-30 Seagate Technology Llc Cooling periods used during the writing of bit boundaries to a magnetic recording media
US10482918B1 (en) 2018-08-17 2019-11-19 Seagate Technology Llc Changing bit spacing for selected symbols written to a magnetic recording medium

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Also Published As

Publication number Publication date
EP0740830B1 (de) 2003-08-27
EP0740830A1 (de) 1996-11-06
DE69433095T2 (de) 2004-06-03
JPH09507603A (ja) 1997-07-29
AU1430595A (en) 1995-06-19
EP0740830A4 (de) 2002-01-02
WO1995015552A1 (en) 1995-06-08
US5995305A (en) 1999-11-30
US6404570B1 (en) 2002-06-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: BOCKHORNI & KOLLEGEN, 80687 MUENCHEN

8339 Ceased/non-payment of the annual fee