DE69723477D1 - Anordnung und verfahren zur rauschvorhersagenden maximal-wahrscheinlichkeitsdetektion - Google Patents
Anordnung und verfahren zur rauschvorhersagenden maximal-wahrscheinlichkeitsdetektionInfo
- Publication number
- DE69723477D1 DE69723477D1 DE69723477T DE69723477T DE69723477D1 DE 69723477 D1 DE69723477 D1 DE 69723477D1 DE 69723477 T DE69723477 T DE 69723477T DE 69723477 T DE69723477 T DE 69723477T DE 69723477 D1 DE69723477 D1 DE 69723477D1
- Authority
- DE
- Germany
- Prior art keywords
- noise
- protective
- arrangement
- maximum likelihood
- likelihood detection
- 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 - Lifetime
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
- G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
- G11B20/10055—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
- G11B20/10175—PR4, PR(1,0,-1), i.e. partial response class 4, polynomial (1+D)(1-D)=(1-D2)
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Error Detection And Correction (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB1997/000554 WO1998052330A1 (en) | 1997-05-15 | 1997-05-15 | Apparatus and method for noise-predictive maximum likelihood detection |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69723477D1 true DE69723477D1 (de) | 2003-08-14 |
DE69723477T2 DE69723477T2 (de) | 2004-05-27 |
Family
ID=11004566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69723477T Expired - Lifetime DE69723477T2 (de) | 1997-05-15 | 1997-05-15 | Anordnung und verfahren zur rauschvorhersagenden maximal-wahrscheinlichkeitsdetektion |
Country Status (5)
Country | Link |
---|---|
US (1) | US6625235B1 (de) |
EP (1) | EP0981880B1 (de) |
JP (1) | JP3540329B2 (de) |
DE (1) | DE69723477T2 (de) |
WO (1) | WO1998052330A1 (de) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6763061B1 (en) * | 2000-07-31 | 2004-07-13 | 3Com Corporation | Frequency domain technique for narrowband noise cancellation in DMT receivers |
US6661858B1 (en) * | 2000-09-12 | 2003-12-09 | Beaudin Andre | DC restoration circuit for a radio receiver |
JP4324316B2 (ja) * | 2000-10-23 | 2009-09-02 | 株式会社日立グローバルストレージテクノロジーズ | 垂直磁気記録再生装置 |
JPWO2003012789A1 (ja) * | 2001-07-27 | 2004-11-25 | 富士通株式会社 | 信号処理方法、信号処理回路及び情報記録再生装置 |
DE10141597B4 (de) | 2001-08-24 | 2017-11-09 | Lantiq Deutschland Gmbh | Verfahren zum Rekonstruieren von über eine Übertragungsstrecke übertragenen Daten in einem Empfänger und entsprechende Vorrichtung |
US20030156635A1 (en) * | 2002-02-20 | 2003-08-21 | Fernandez-Corbaton Ivan Jesus | Adaptive filtering with DC bias compensation |
US20030185292A1 (en) * | 2002-04-02 | 2003-10-02 | Fernandez-Corbaton Ivan Jesus | Adaptive filtering with DC bias compensation |
US7139146B2 (en) * | 2002-05-28 | 2006-11-21 | Sony Corporation | Signal processing apparatus and method, and digital data reproducing apparatus |
DE10251288B4 (de) * | 2002-11-04 | 2005-08-11 | Advanced Micro Devices, Inc., Sunnyvale | Equalizerschaltung mit Kerbkompensation für einen Direktmischempfänger |
US7116504B1 (en) | 2003-03-25 | 2006-10-03 | Marvell International Ltd. | DC-offset compensation loops for magnetic recording system |
US7369813B2 (en) | 2003-05-14 | 2008-05-06 | Telefonaktiebolaget L M Ericsson (Publ) | Fast calibration of electronic components |
US7289568B2 (en) * | 2003-11-19 | 2007-10-30 | Intel Corporation | Spectrum management apparatus, method, and system |
US7545862B2 (en) * | 2004-02-16 | 2009-06-09 | Sony Corporation | Adaptive equalizer, decoding device, and error detecting device |
US7522680B2 (en) * | 2005-02-09 | 2009-04-21 | International Business Machines Corporation | Apparatus, system, and method for asymmetric maximum likelihood detection |
US7561640B2 (en) * | 2005-04-08 | 2009-07-14 | Seagate Technology Llc | Method and apparatus for interative noise whitening with causal and anti-causal prediction filters |
US7394608B2 (en) * | 2005-08-26 | 2008-07-01 | International Business Machines Corporation | Read channel apparatus for asynchronous sampling and synchronous equalization |
US7522367B2 (en) * | 2005-11-23 | 2009-04-21 | International Business Machines Corporation | Asynchronous read channel shaped toward generalized partial response characteristics |
US8976913B2 (en) * | 2008-09-17 | 2015-03-10 | Lsi Corporation | Adaptive pattern dependent noise prediction on a feed forward noise estimate |
US20110090779A1 (en) * | 2009-10-16 | 2011-04-21 | Mediatek Inc. | Apparatus for generating viterbi-processed data |
US20110167323A1 (en) * | 2010-01-07 | 2011-07-07 | Mediatek Inc. | Error-Correcting Apparatus and Method Thereof |
US8670199B2 (en) | 2010-04-02 | 2014-03-11 | International Business Machines Corporation | Data-dependent noise-predictive maximum likelihood detection (DD-NPML) for magnetic recording |
US8248903B2 (en) * | 2010-04-21 | 2012-08-21 | Mediatek Inc. | Decoding apparatus and method thereof |
EP2772033A4 (de) | 2011-10-27 | 2015-07-22 | Lsi Corp | Softdfe-signalverarbeitung |
RU2012102842A (ru) | 2012-01-27 | 2013-08-10 | ЭлЭсАй Корпорейшн | Инкрементное обнаружение преамбулы |
US8432780B1 (en) | 2012-05-10 | 2013-04-30 | Mediatek Inc. | Viterbi decoding apparatus using level information generator supporting different hardware configurations to generate level information to Viterbi decoder and related method thereof |
US8797670B2 (en) | 2012-06-19 | 2014-08-05 | International Business Machines Corporation | Adaptive soft-output detector for magnetic tape read channels |
US8743500B2 (en) | 2012-06-19 | 2014-06-03 | International Business Machines Corporation | Adaptive soft-output detector for magnetic tape read channels |
US8743499B2 (en) | 2012-06-19 | 2014-06-03 | International Business Machines Corporation | Adaptive soft-output detector for magnetic tape read channels |
US8743498B2 (en) | 2012-06-19 | 2014-06-03 | International Business Machines Corporation | Adaptive soft-output detector for magnetic tape read channels |
US9129610B2 (en) * | 2012-08-21 | 2015-09-08 | Bose Corporation | Filtering for detection of limited-duration distortion |
US9923595B2 (en) | 2013-04-17 | 2018-03-20 | Intel Corporation | Digital predistortion for dual-band power amplifiers |
US9813223B2 (en) | 2013-04-17 | 2017-11-07 | Intel Corporation | Non-linear modeling of a physical system using direct optimization of look-up table values |
US9318147B1 (en) * | 2013-10-10 | 2016-04-19 | Seagate Technology Llc | Read read-only fields while writing |
US8947812B1 (en) | 2014-03-27 | 2015-02-03 | Western Digital Technologies, Inc. | Data storage device comprising equalizer filter and inter-track interference filter |
US9183877B1 (en) | 2015-03-20 | 2015-11-10 | Western Digital Technologies, Inc. | Data storage device comprising two-dimensional data dependent noise whitening filters for two-dimensional recording |
US11831473B2 (en) * | 2022-03-28 | 2023-11-28 | Credo Technology Group Limited | Reduced-complexity maximum likelihood sequence detector suitable for m-ary signaling |
US11831475B1 (en) * | 2022-06-10 | 2023-11-28 | Credo Technology Group Limited | Receiver using pseudo partial response maximum likelihood sequence detection |
US11862194B1 (en) | 2022-12-01 | 2024-01-02 | International Business Machines Corporation | Adaptive data detection on a nonlinear channel |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2623638B2 (ja) | 1988-02-25 | 1997-06-25 | 松下電器産業株式会社 | 復号装置 |
US5115452A (en) * | 1990-08-02 | 1992-05-19 | At&T Bell Laboratories | Phase jitter correction arrangement |
JP2932830B2 (ja) | 1991-05-29 | 1999-08-09 | 日本電気株式会社 | 非線形歪等化用適応型等化器 |
JPH057128A (ja) | 1991-06-27 | 1993-01-14 | Nec Corp | 等化器 |
US5818876A (en) * | 1993-02-01 | 1998-10-06 | Motorola, Inc. | Method and apparatus of adaptive maximum likelihood sequence estimation using a variable convergence step size |
WO1994029989A1 (en) * | 1993-06-14 | 1994-12-22 | International Business Machines Corporation | Adaptive noise-predictive partial-response equalization for channels with spectral nulls |
JPH076511A (ja) | 1993-06-21 | 1995-01-10 | Matsushita Electric Ind Co Ltd | 等化・復号装置 |
JPH0715355A (ja) | 1993-06-25 | 1995-01-17 | Matsushita Electric Ind Co Ltd | 等化・復号装置 |
JPH0738614A (ja) | 1993-07-23 | 1995-02-07 | Matsushita Electric Ind Co Ltd | ディジタル情報検出装置および磁気再生装置 |
JPH08307283A (ja) * | 1995-03-09 | 1996-11-22 | Oki Electric Ind Co Ltd | 最尤系列推定器及び最尤系列推定方法 |
EP0852089B1 (de) * | 1995-09-18 | 2006-08-09 | Hitachi Global Storage Technologies Netherlands B.V. | Vorrichtung und verfahren zur rauschvorhersagenden maximal-wahrscheinlichkeitsdetektion |
US6029058A (en) * | 1996-07-19 | 2000-02-22 | The Board Of Trustee Of The Leland Stanford Junior University | Spectrum control for direct conversion radio frequency reception |
-
1997
- 1997-05-15 JP JP54896098A patent/JP3540329B2/ja not_active Expired - Fee Related
- 1997-05-15 EP EP97918303A patent/EP0981880B1/de not_active Expired - Lifetime
- 1997-05-15 DE DE69723477T patent/DE69723477T2/de not_active Expired - Lifetime
- 1997-05-15 US US09/403,628 patent/US6625235B1/en not_active Expired - Fee Related
- 1997-05-15 WO PCT/IB1997/000554 patent/WO1998052330A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
JP3540329B2 (ja) | 2004-07-07 |
JP2000513182A (ja) | 2000-10-03 |
EP0981880A1 (de) | 2000-03-01 |
WO1998052330A1 (en) | 1998-11-19 |
US6625235B1 (en) | 2003-09-23 |
DE69723477T2 (de) | 2004-05-27 |
EP0981880B1 (de) | 2003-07-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B. |
|
8328 | Change in the person/name/address of the agent |
Representative=s name: BEETZ & PARTNER PATENTANWAELTE, 80538 MUENCHEN |