WO2008146421A1 - 情報再生装置及び映像表示装置 - Google Patents

情報再生装置及び映像表示装置 Download PDF

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Publication number
WO2008146421A1
WO2008146421A1 PCT/JP2007/072012 JP2007072012W WO2008146421A1 WO 2008146421 A1 WO2008146421 A1 WO 2008146421A1 JP 2007072012 W JP2007072012 W JP 2007072012W WO 2008146421 A1 WO2008146421 A1 WO 2008146421A1
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WO
WIPO (PCT)
Prior art keywords
maximum
asml
small
likelihood
taps
Prior art date
Application number
PCT/JP2007/072012
Other languages
English (en)
French (fr)
Inventor
Hiroki Mouri
Original Assignee
Panasonic Corporation
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 Panasonic Corporation filed Critical Panasonic Corporation
Priority to US12/531,441 priority Critical patent/US20100066722A1/en
Priority to CN2007800527944A priority patent/CN101657855B/zh
Priority to JP2009516151A priority patent/JPWO2008146421A1/ja
Publication of WO2008146421A1 publication Critical patent/WO2008146421A1/ja

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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
    • 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
    • G11B20/10055—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
    • G11B20/10222—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation
    • 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
    • G11B20/10268—Improvement or modification of read or write signals bit detection or demodulation methods
    • G11B20/10287—Improvement or modification of read or write signals bit detection or demodulation methods using probabilistic methods, e.g. maximum likelihood detectors
    • 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2545—CDs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

　非同期型リードチャネルシステムにおいて、参照値補間型の最尤復号器ＡＳＭＬは、例えば７タップで回路規模の小さいものが採用される。前記最尤復号器ＡＳＭＬの前段には、非線形波形等化器ＳＥＱが配置される。前記非線形波形等化器ＳＥＱは、例えば４タップのＦＩＲフィルタで構成されていて、小振幅で高周波数な信号成分のみを大きく増幅するように、入力ディジタル信号を非線形波形等化する。この非線形波形等化後の信号が前記参照値補間型の最尤復号器ＡＳＭＬに入力されて、最尤復号される。従って、前記参照値補間型最尤復号器を少ないタップ数で小回路規模に構成した場合であっても、誤り訂正能力の高い最尤復号が可能になる。
PCT/JP2007/072012 2007-05-30 2007-11-13 情報再生装置及び映像表示装置 WO2008146421A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/531,441 US20100066722A1 (en) 2007-05-30 2007-11-13 Information reproduction appartus and video display apparatus
CN2007800527944A CN101657855B (zh) 2007-05-30 2007-11-13 信息再现装置和图像显示装置
JP2009516151A JPWO2008146421A1 (ja) 2007-05-30 2007-11-13 情報再生装置及び映像表示装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007143741 2007-05-30
JP2007-143741 2007-05-30

Publications (1)

Publication Number Publication Date
WO2008146421A1 true WO2008146421A1 (ja) 2008-12-04

Family

ID=40074699

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/072012 WO2008146421A1 (ja) 2007-05-30 2007-11-13 情報再生装置及び映像表示装置

Country Status (4)

Country Link
US (1) US20100066722A1 (ja)
JP (1) JPWO2008146421A1 (ja)
CN (1) CN101657855B (ja)
WO (1) WO2008146421A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8930166B1 (en) * 2011-12-06 2015-01-06 Lockheed Martin Corporation Method and apparatus for efficient extraction of information from signals
JP5998812B2 (ja) * 2012-10-01 2016-09-28 株式会社ソシオネクスト クロック生成装置、クロック生成装置の動作方法およびシステム

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001312824A (ja) * 2000-04-26 2001-11-09 Sharp Corp 信号再生方法および信号再生装置ならびにディスク記録再生装置
WO2006019073A1 (ja) * 2004-08-20 2006-02-23 Matsushita Electric Industrial Co., Ltd. 情報再生装置
JP2006172545A (ja) * 2004-12-14 2006-06-29 Ricoh Co Ltd 制御方法、情報再生装置、プログラム及び記録媒体
JP2007102859A (ja) * 2005-09-30 2007-04-19 Toshiba Samsung Storage Technology Corp 光ディスク装置および光ディスクの再生方法
WO2007043124A1 (ja) * 2005-09-30 2007-04-19 Fujitsu Limited オーバーサンプリング・トランスバーサル等化器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2593695Y2 (ja) * 1993-05-21 1999-04-12 ティアック株式会社 磁気ヘッド装置
US5802118A (en) * 1996-07-29 1998-09-01 Cirrus Logic, Inc. Sub-sampled discrete time read channel for computer storage systems
JPH1055544A (ja) * 1996-08-09 1998-02-24 Toshiba Corp 光学的情報再生装置
EP2194532A3 (en) * 2003-01-31 2011-09-28 Panasonic Corporation Recording medium, reproduction device, program, and reproduction method for an interactive graphics stream
JP2004326952A (ja) * 2003-04-25 2004-11-18 Matsushita Electric Ind Co Ltd 情報記憶再生装置
JP4945955B2 (ja) * 2005-08-19 2012-06-06 ソニー株式会社 タップ係数設計方法及びタップ係数設計装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001312824A (ja) * 2000-04-26 2001-11-09 Sharp Corp 信号再生方法および信号再生装置ならびにディスク記録再生装置
WO2006019073A1 (ja) * 2004-08-20 2006-02-23 Matsushita Electric Industrial Co., Ltd. 情報再生装置
JP2006172545A (ja) * 2004-12-14 2006-06-29 Ricoh Co Ltd 制御方法、情報再生装置、プログラム及び記録媒体
JP2007102859A (ja) * 2005-09-30 2007-04-19 Toshiba Samsung Storage Technology Corp 光ディスク装置および光ディスクの再生方法
WO2007043124A1 (ja) * 2005-09-30 2007-04-19 Fujitsu Limited オーバーサンプリング・トランスバーサル等化器

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
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KASHIWABARA Y.: "HD DVD no Saisei Shingo Shori Gijutsu", TOSHIBA REVIEW, vol. 60, no. 1, 1 January 2005 (2005-01-01), pages 25 *
TSUJIKAWA H. ET AL.: "SoC Sekkei Gijutsu", MATSUSHITA TECHNICAL JOURNAL, vol. 52, no. 1, 18 February 2006 (2006-02-18), pages 635 - 639 *
YAMAMOTO A. E TAL.: "Robust Read Channel System Directly Processing Asynchronous Sampling Data", JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 45, no. 2B, 24 February 2006 (2006-02-24), pages 1054 - 1057 *

Also Published As

Publication number Publication date
CN101657855B (zh) 2011-06-22
CN101657855A (zh) 2010-02-24
US20100066722A1 (en) 2010-03-18
JPWO2008146421A1 (ja) 2010-08-19

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