CN1612253B - 信息再生方法及信息再生装置 - Google Patents
信息再生方法及信息再生装置 Download PDFInfo
- Publication number
- CN1612253B CN1612253B CN2004100393539A CN200410039353A CN1612253B CN 1612253 B CN1612253 B CN 1612253B CN 2004100393539 A CN2004100393539 A CN 2004100393539A CN 200410039353 A CN200410039353 A CN 200410039353A CN 1612253 B CN1612253 B CN 1612253B
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- CN
- China
- Prior art keywords
- level
- asymmetry
- correction
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- value
- 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
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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
- G11B20/10203—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter baseline correction
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K3/00—Baths; Douches; Appurtenances therefor
- A47K3/001—Accessories for baths, not provided for in other subgroups of group A47K3/00 ; Insertions, e.g. for babies; Tubs suspended or inserted in baths; Security or alarm devices; Protecting linings or coverings; Devices for cleaning or disinfecting baths; Bath insulation
- A47K3/004—Trays
-
- 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
-
- 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
- G11B20/10212—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter compensation for data shift, e.g. pulse-crowding effects
Abstract
Description
Claims (8)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-372885 | 2003-10-31 | ||
JP2003372885 | 2003-10-31 | ||
JP2003372885A JP3897118B2 (ja) | 2003-10-31 | 2003-10-31 | 情報再生方法及び情報再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1612253A CN1612253A (zh) | 2005-05-04 |
CN1612253B true CN1612253B (zh) | 2010-12-01 |
Family
ID=34544057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2004100393539A Expired - Fee Related CN1612253B (zh) | 2003-10-31 | 2004-01-30 | 信息再生方法及信息再生装置 |
Country Status (4)
Country | Link |
---|---|
US (2) | US7440379B2 (zh) |
JP (1) | JP3897118B2 (zh) |
KR (1) | KR100977364B1 (zh) |
CN (1) | CN1612253B (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005116005A (ja) * | 2003-10-03 | 2005-04-28 | Mitsubishi Electric Corp | ディスク再生装置 |
JP4407461B2 (ja) | 2004-10-21 | 2010-02-03 | 株式会社日立製作所 | 光ディスク装置 |
JP4735139B2 (ja) | 2005-09-02 | 2011-07-27 | マックス株式会社 | 用紙処理装置 |
US7161522B1 (en) * | 2005-09-20 | 2007-01-09 | Lsi Logic Corporation | Severe asymmetry compensator for optical recording PRML read channel |
JP5317076B2 (ja) * | 2005-11-30 | 2013-10-16 | 三星電子株式会社 | 情報再生装置 |
JP2007280571A (ja) | 2006-04-12 | 2007-10-25 | Hitachi Ltd | 光ディスク装置及び再生信号処理方法 |
US7969848B1 (en) * | 2007-03-21 | 2011-06-28 | Marvell International Ltd. | System and method of decoupling asymmetry from baseline compensation |
US8330642B2 (en) * | 2007-07-09 | 2012-12-11 | Carnegie Mellon University | Imaging by time reversal beamforming |
JP6458354B2 (ja) * | 2014-05-13 | 2019-01-30 | 住友電気工業株式会社 | 歪補償装置の製造方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6289059B1 (en) * | 1997-05-08 | 2001-09-11 | Sony Corporation | Information reproducing apparatus and reproducing method |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3558168B2 (ja) * | 1992-10-30 | 2004-08-25 | ソニー株式会社 | 光学式情報再生装置 |
US5563862A (en) * | 1994-05-31 | 1996-10-08 | Sony Corporation | Write once optical disc recording apparatus with reduced data error rate because the value of asymmetry is equalized as additional data is recorded thereon |
JPH09231635A (ja) | 1996-02-28 | 1997-09-05 | Nikon Corp | 情報再生装置 |
JP3218368B2 (ja) * | 1996-09-17 | 2001-10-15 | 富士通株式会社 | データ再生装置 |
JP2000298836A (ja) | 1999-04-14 | 2000-10-24 | Sony Corp | ドライブ装置 |
US7318045B2 (en) * | 2000-02-29 | 2008-01-08 | Accenture Llp | Event-driven trade link between trading and clearing systems |
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 |
GB2392066B (en) * | 2002-08-16 | 2005-11-09 | Toshiba Res Europ Ltd | Equaliser apparatus and methods |
-
2003
- 2003-10-31 JP JP2003372885A patent/JP3897118B2/ja not_active Expired - Fee Related
-
2004
- 2004-01-29 KR KR1020040005610A patent/KR100977364B1/ko not_active IP Right Cessation
- 2004-01-30 CN CN2004100393539A patent/CN1612253B/zh not_active Expired - Fee Related
- 2004-02-10 US US10/774,587 patent/US7440379B2/en not_active Expired - Fee Related
-
2008
- 2008-10-01 US US12/285,307 patent/US7944791B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6289059B1 (en) * | 1997-05-08 | 2001-09-11 | Sony Corporation | Information reproducing apparatus and reproducing method |
Non-Patent Citations (2)
Title |
---|
N.Ide Department1,optical disc development division,av/tvdevelopment group sonycorporation,Kitashinagawa,Shinagawa-ku.Technical Digital of ISOM 2002 0-7803-7379-0.Technical Digital of ISOM 2002,2002,269-271. |
N.Ide Department1,optical disc development division,av/tvdevelopment group sonycorporation,Kitashinagawa,Shinagawa-ku.Technical Digital of ISOM 2002 0-7803-7379-0.Technical Digital of ISOM 2002,2002,269-271. * |
Also Published As
Publication number | Publication date |
---|---|
US20050094539A1 (en) | 2005-05-05 |
US20090046557A1 (en) | 2009-02-19 |
JP2005135549A (ja) | 2005-05-26 |
US7944791B2 (en) | 2011-05-17 |
KR20050041830A (ko) | 2005-05-04 |
KR100977364B1 (ko) | 2010-08-20 |
CN1612253A (zh) | 2005-05-04 |
US7440379B2 (en) | 2008-10-21 |
JP3897118B2 (ja) | 2007-03-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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: 20150325 |
|
C41 | Transfer of patent application or patent right or utility model | ||
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan Patentee after: Hitachi, Ltd. Patentee after: HITACHI-LG DATA STORAGE, Inc. Address before: Tokyo, Japan Patentee before: Hitachi, Ltd. Patentee before: Hitachi LG Data Storage Inc. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20150325 Address after: Kanagawa Patentee after: HITACHI CONSUMER ELECTRONICS Co.,Ltd. Patentee after: HITACHI-LG DATA STORAGE, Inc. Address before: Tokyo, Japan Patentee before: Hitachi, Ltd. Patentee before: HITACHI-LG DATA STORAGE, Inc. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20170130 |
|
CF01 | Termination of patent right due to non-payment of annual fee |