CN100573689C - 信息再生方法以及采用了这种方法的信息再生装置 - Google Patents
信息再生方法以及采用了这种方法的信息再生装置 Download PDFInfo
- Publication number
- CN100573689C CN100573689C CNB03149899XA CN03149899A CN100573689C CN 100573689 C CN100573689 C CN 100573689C CN B03149899X A CNB03149899X A CN B03149899XA CN 03149899 A CN03149899 A CN 03149899A CN 100573689 C CN100573689 C CN 100573689C
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- regenerated signal
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- 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
- G11B20/10148—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 partial response PR(1,3,3,1)
-
- 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
- G11B20/10009—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
-
- 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
- G11B20/10083—PR1 or PR(1,1,), i.e. partial response class 1, polynomial 1+D
-
- 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
- G11B20/10101—PR2 or PR(1,2,1), i.e. partial response class 2, polynomial (1+D)2=1+2D+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
- 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
- G11B20/10111—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 partial response PR(1,2,2,1)
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
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)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003115871 | 2003-04-21 | ||
JP2003115871A JP4095487B2 (ja) | 2003-04-21 | 2003-04-21 | 情報再生方法及びそれを用いた情報再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1540658A CN1540658A (zh) | 2004-10-27 |
CN100573689C true CN100573689C (zh) | 2009-12-23 |
Family
ID=33157091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB03149899XA Expired - Fee Related CN100573689C (zh) | 2003-04-21 | 2003-07-30 | 信息再生方法以及采用了这种方法的信息再生装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7391699B2 (zh) |
JP (1) | JP4095487B2 (zh) |
CN (1) | CN100573689C (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4045269B2 (ja) * | 2004-10-20 | 2008-02-13 | 株式会社日立製作所 | 記録方法及び光ディスク装置 |
JP4407461B2 (ja) * | 2004-10-21 | 2010-02-03 | 株式会社日立製作所 | 光ディスク装置 |
US20070086315A1 (en) * | 2005-10-19 | 2007-04-19 | Mediatek Inc. | Optical disc apparatuses |
CN101079273B (zh) * | 2006-03-14 | 2010-09-08 | 株式会社理光 | 数据再现方法、数据再现装置、光盘和数据记录/再现装置 |
JP5170819B2 (ja) * | 2006-04-21 | 2013-03-27 | 株式会社リコー | 情報再生装置、情報記録再生装置、及び情報再生方法 |
US7721186B2 (en) * | 2006-04-28 | 2010-05-18 | International Business Machines Corporation | Redundancy protection for data recorded across multiple layers of recording media |
JP5089939B2 (ja) * | 2006-08-11 | 2012-12-05 | ソニーオプティアーク株式会社 | 記録再生装置、評価値演算方法 |
JP2008159231A (ja) * | 2006-12-26 | 2008-07-10 | Toshiba Corp | 光ディスク記録再生装置、及び光ディスク記録再生方法 |
US8599663B1 (en) * | 2007-10-15 | 2013-12-03 | Marvell International Ltd. | High speed forward sense sampling in optical drives using placed data patterns |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09330565A (ja) | 1996-06-11 | 1997-12-22 | Hitachi Ltd | ディジタル磁気記録再生装置 |
JP3218368B2 (ja) | 1996-09-17 | 2001-10-15 | 富士通株式会社 | データ再生装置 |
JP2000030376A (ja) | 1998-07-14 | 2000-01-28 | Sony Corp | 仮識別回路およびこの仮識別回路を用いたビタビ復号器 |
JP2000285612A (ja) * | 1999-01-28 | 2000-10-13 | Victor Co Of Japan Ltd | データ復号装置及びデータ復号方法 |
JP3687425B2 (ja) | 1999-07-21 | 2005-08-24 | 日本ビクター株式会社 | ディジタル信号再生装置 |
US6678230B2 (en) * | 2000-10-31 | 2004-01-13 | Matsushita Electric Industrial Co., Ltd. | Waveform equalizer for a reproduction signal obtained by reproducing marks and non-marks recorded on a recording medium |
JP2002175673A (ja) | 2000-12-07 | 2002-06-21 | Nec Corp | Pll回路、データ検出回路及びディスク装置 |
JP2002230917A (ja) * | 2001-01-30 | 2002-08-16 | Fujitsu Ltd | 磁気記録/再生装置 |
JP3647761B2 (ja) | 2001-03-07 | 2005-05-18 | 富士通株式会社 | データ再生方法及びデータ再生装置並びに光磁気ディスク装置 |
-
2003
- 2003-04-21 JP JP2003115871A patent/JP4095487B2/ja not_active Expired - Fee Related
- 2003-07-30 CN CNB03149899XA patent/CN100573689C/zh not_active Expired - Fee Related
- 2003-08-20 US US10/643,975 patent/US7391699B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN1540658A (zh) | 2004-10-27 |
US7391699B2 (en) | 2008-06-24 |
JP4095487B2 (ja) | 2008-06-04 |
US20040208106A1 (en) | 2004-10-21 |
JP2004326839A (ja) | 2004-11-18 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: HITACHI LTD. Free format text: FORMER OWNER: HITACHI,LTD. Effective date: 20130923 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20130923 Address after: Tokyo, Japan Patentee after: HITACHI CONSUMER ELECTRONICS Co.,Ltd. Address before: Tokyo, Japan Patentee before: Hitachi, Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20210730 |
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CF01 | Termination of patent right due to non-payment of annual fee |