JP2013080553A5 - - Google Patents
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- JP2013080553A5 JP2013080553A5 JP2012215775A JP2012215775A JP2013080553A5 JP 2013080553 A5 JP2013080553 A5 JP 2013080553A5 JP 2012215775 A JP2012215775 A JP 2012215775A JP 2012215775 A JP2012215775 A JP 2012215775A JP 2013080553 A5 JP2013080553 A5 JP 2013080553A5
- Authority
- JP
- Japan
- Prior art keywords
- data
- inter
- track interference
- data path
- read
- 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.)
- Withdrawn
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- 230000000116 mitigating effect Effects 0.000 claims 5
Claims (10)
- 磁気記録システムにおけるトラック間干渉の軽減のための方法であって、
トラック間干渉キャンセル・データを取得することと、
前記トラック間干渉キャンセル・データを、前記磁気記録システムの書き込みデータ経路の少なくとも一部を用いてトラック間干渉軽減回路に提供すること
を含む、方法。 - 前記トラック間干渉キャンセル・データは、ユーザ・データ、媒体データ、ADCデータ、およびY−データのうちの1つまたは複数を含む、請求項1に記載の方法。
- 前記書き込みデータ経路は、読み取りデータ経路が読み取り動作を実行するのと実質的に同時に動作する、請求項1または2に記載の方法。
- 前記提供するステップは、読み取り動作中に実行される、請求項1〜3のいずれかに記載の方法。
- 前記トラック間干渉の軽減は、所与の読み取り動作に対して、1つまたは複数の隣接するセクタに関して選択的に実行される、請求項1〜4のいずれかに記載の方法。
- 磁気記録システムにおけるトラック間干渉の軽減のための装置であって、
読み取りデータ経路と、
トラック間干渉キャンセル・データを、前記磁気記録システムのトラック間干渉軽減回路に提供するための書き込みデータ経路
を含む、装置。 - 前記書き込みデータ経路は、前記読み取りデータ経路が読み取り動作を実行するのと実質的に同時に動作する、請求項6に記載の装置。
- 前記トラック間干渉の軽減を開始するための、リード・ゲート信号と実質的に同時にアサートされる第1の制御信号を生成するための手段をさらに含む、請求項6または7に記載の装置。
- 前記トラック間干渉の軽減のための、前の読み取り動作からのデータおよび後処理されたデータのうちの1つまたは複数の使用を示す第2の制御信号を生成するための手段をさらに含む、請求項6〜8のいずれかに記載の装置。
- 読み取りデータ経路と、
前記読み取りデータ経路による前の読み取り動作からの記憶されたデータおよび記憶された後処理されたデータのうちの1つまたは複数の使用を示す再試行制御信号を生成するための手段
を含む、磁気記録システム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/250,246 US8873177B2 (en) | 2011-09-30 | 2011-09-30 | Hardware-based methods and apparatus for inter-track interference mitigation in magnetic recording systems |
US13/250,246 | 2011-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013080553A JP2013080553A (ja) | 2013-05-02 |
JP2013080553A5 true JP2013080553A5 (ja) | 2015-09-24 |
Family
ID=47044824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012215775A Withdrawn JP2013080553A (ja) | 2011-09-30 | 2012-09-28 | 磁気記録システムにおけるトラック間干渉の軽減のためのハードウェアに基づく方法および装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8873177B2 (ja) |
EP (1) | EP2590169A1 (ja) |
JP (1) | JP2013080553A (ja) |
KR (1) | KR20130035917A (ja) |
CN (1) | CN103093781A (ja) |
TW (1) | TW201329966A (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5694210B2 (ja) * | 2012-02-01 | 2015-04-01 | 株式会社東芝 | 磁気ディスク装置、リードライト制御方法、及びコントローラ |
US9269394B2 (en) * | 2012-07-19 | 2016-02-23 | Marvell International Ltd. | Methods for reading data from a storage medium using a reader and storage devices |
US9001442B2 (en) | 2013-03-15 | 2015-04-07 | Seagate Technology Llc | Detection of adjacent track interference using size-adjustable sliding window |
US8964322B2 (en) | 2013-07-15 | 2015-02-24 | Seagate Technology Llc | Size adjustable inter-track interference cancellation |
US9626998B2 (en) * | 2013-07-30 | 2017-04-18 | Marvell International Ltd. | Write interference reduction when reading while writing to a hard disk drive media |
US8947805B1 (en) * | 2014-03-18 | 2015-02-03 | HGST Netherlands B.V. | Low complexity inter-track interference cancellation receiver for magnetic multiple-input, multiple-output (MIMO) channel |
US8976476B1 (en) | 2014-04-11 | 2015-03-10 | Lsi Corporation | Storage device with read channel circuitry configured to provide continuity protection for subsector stitching |
CN103955433A (zh) * | 2014-05-09 | 2014-07-30 | 华为技术有限公司 | 盖瓦磁记录硬盘、盖瓦磁记录硬盘写数据的方法及装置 |
US8976473B1 (en) | 2014-05-21 | 2015-03-10 | Seagate Technology Llc | Inter-track interference cancellation based on predetermined data patterns in adjacent tracks |
JP6782190B2 (ja) * | 2017-04-25 | 2020-11-11 | 株式会社東芝 | ディスク装置、コントローラ回路、及び制御方法 |
TWI710904B (zh) * | 2019-02-18 | 2020-11-21 | 宏碁股份有限公司 | 資料寫入方法與儲存裝置 |
JP2021034092A (ja) * | 2019-08-29 | 2021-03-01 | 株式会社東芝 | 磁気ディスク装置、及び磁気ディスク装置のリードエラーリトライ方法 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5459679A (en) * | 1994-07-18 | 1995-10-17 | Quantum Corporation | Real-time DC offset control and associated method |
WO2001059767A1 (fr) * | 2000-02-10 | 2001-08-16 | Hitachi, Ltd. | Dispositif magnetique d'enregistrement/reproduction |
US20050264906A1 (en) | 2004-05-25 | 2005-12-01 | Haratsch Erich F | Method and apparatus for reduced-state Viterbi detection in a read channel of a magnetic recording system |
US7002762B2 (en) | 2004-02-12 | 2006-02-21 | University Of Maryland | Method for intersymbol interference removal in data recovery |
US20070104078A1 (en) | 2004-11-03 | 2007-05-10 | Koninklijke Philips Electronics N.V. | Apparatus and method for reading information from an information carrier |
US7685360B1 (en) * | 2005-05-05 | 2010-03-23 | Seagate Technology Llc | Methods and structure for dynamic appended metadata in a dynamically mapped mass storage device |
US7253986B2 (en) * | 2005-08-30 | 2007-08-07 | International Business Machines Corporation | System and method for deconvolution of multiple data tracks |
JP4331202B2 (ja) * | 2006-12-25 | 2009-09-16 | 株式会社東芝 | 再生装置及び再生方法 |
US7623312B2 (en) * | 2007-09-28 | 2009-11-24 | Kabushiki Kaisha Toshiba | Hard disk drive off track event method and device |
US8300339B1 (en) * | 2009-10-01 | 2012-10-30 | Marvell International Ltd. | Method and system for compensating for adjacent tracks during reading of data |
US8638513B1 (en) * | 2010-04-08 | 2014-01-28 | Marvell International Ltd. | Method and system for compensating for adjacent tracks during reading of data |
US8681439B2 (en) | 2010-09-13 | 2014-03-25 | Lsi Corporation | Systems and methods for handling sector gaps in inter-track interference compensation |
US8665543B2 (en) * | 2010-10-29 | 2014-03-04 | Sk Hynix Memory Solutions Inc. | Inter-track interference cancelation for shingled magnetic recording |
JP5112501B2 (ja) * | 2010-11-30 | 2013-01-09 | 株式会社東芝 | 磁気ディスク装置、信号処理回路及び信号処理方法 |
US8611032B2 (en) * | 2010-12-23 | 2013-12-17 | Western Digital Technologies, Inc. | Directional write retry for shingled disk drive application |
US8659847B1 (en) * | 2011-02-25 | 2014-02-25 | Sk Hynix Memory Solutions Inc. | Component reuse for ITI cancellation |
-
2011
- 2011-09-30 US US13/250,246 patent/US8873177B2/en active Active
-
2012
- 2012-09-26 EP EP12186138.9A patent/EP2590169A1/en not_active Withdrawn
- 2012-09-27 KR KR1020120107537A patent/KR20130035917A/ko not_active Application Discontinuation
- 2012-09-28 CN CN2012105439675A patent/CN103093781A/zh active Pending
- 2012-09-28 TW TW101136056A patent/TW201329966A/zh unknown
- 2012-09-28 JP JP2012215775A patent/JP2013080553A/ja not_active Withdrawn
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