JP4268619B2 - 記録媒体、再生装置および記録装置 - Google Patents
記録媒体、再生装置および記録装置 Download PDFInfo
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- JP4268619B2 JP4268619B2 JP2006049098A JP2006049098A JP4268619B2 JP 4268619 B2 JP4268619 B2 JP 4268619B2 JP 2006049098 A JP2006049098 A JP 2006049098A JP 2006049098 A JP2006049098 A JP 2006049098A JP 4268619 B2 JP4268619 B2 JP 4268619B2
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- 238000012937 correction Methods 0.000 claims abstract description 435
- 238000000034 method Methods 0.000 abstract description 32
- 239000000470 constituent Substances 0.000 description 91
- 238000001514 detection method Methods 0.000 description 61
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- 238000011144 upstream manufacturing Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 12
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 3
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- 239000004065 semiconductor Substances 0.000 description 2
- 230000009131 signaling function Effects 0.000 description 2
- 241000285902 Anas wyvilliana Species 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
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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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1833—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information
-
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
-
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1803—Error detection or correction; Testing, e.g. of drop-outs by redundancy in data representation
-
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1866—Error detection or correction; Testing, e.g. of drop-outs by interleaving
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
-
- 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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
- G11B2020/1287—Synchronisation pattern, e.g. VCO fields
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
- H03M13/2954—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using Picket codes or other codes providing error burst detection capabilities, e.g. burst indicator codes and long distance codes [LDC]
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Theoretical Computer Science (AREA)
- Error Detection And Correction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Detection And Correction Of Errors (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Description
d≧2×t+1
の関係が成立する。各第1の誤り訂正符号には32バイトのパリティが付加されているので、2つの第1の誤り訂正符号間の最小距離は33になる。したがって、上記関係から、第1の誤り訂正符号は、符号長=248個(バイト)中の任意の16個(バイト)まで訂正できる訂正能力を有する。
d≧2×t+e+1
の関係が成立する。上記の第1の誤り訂正符号では、最小距離d=33であるから、すべての訂正を消失訂正で行った場合(t=0の場合)、最大32個の訂正能力(e=32)を有することになる。
d≧2×t+1
の関係が成立する。各第1の誤り訂正符号111には32バイトのパリティが付加されているので、2つの第1の誤り訂正符号間の最小距離は33になる。したがって、上記関係から、第1の誤り訂正符号111は、符号長=248個(バイト)中の任意の16個(バイト)まで訂正できる訂正能力を有する。
d≧2×t+e+1
の関係が成立する。上記の第1の誤り訂正符号では、最小距離d=33であるから、すべての訂正を消失訂正で行った場合(t=0の場合)、最大32個の訂正能力(e=32)を有することになる。
(a)同期信号115eが正常に検出され、第2の誤り訂正符号の構成シンボル112eに誤りが検出されなかった場合、第1の誤り訂正符号の構成シンボル111iに対して消失フラグは付加しない。
(g)第2の誤り訂正符号の構成シンボル112fに誤りが検出されず、同期信号115fが正常に検出された場合、第1の誤り訂正符号の構成シンボル111kに対して消失フラグは付加しない。
101 符号化部
102 変調部
103 記録回路
104 第1の符号化回路
105 第2の符号化回路
106 変調回路
107 同期信号生成回路
108 インターリーブ回路
109 ユーザデータ
110 制御情報
111 第1の誤り訂正符号
112 第2の誤り訂正符号
115 同期信号
116 データストリーム
117 光ヘッド
118 光ディスク
600 再生装置
603 再生回路
604 復調回路
605 同期信号検出回路
606 誤り訂正回路
607 WORK RAM
608 インターフェース制御回路
609 制御CPU
616 入力IF制御回路
617 全体制御回路
618 消失フラグ生成回路
622 バス/メモリ制御回路
623 出力IF制御回路
624 第1の符号誤り訂正回路
625 消失訂正回路
626 第2の符号誤り訂正回路
Claims (3)
- 第1の情報を符号化することによって得られる第1の誤り訂正符号と、第2の情報を符号化することによって得られる第2の誤り訂正符号と、所定の同期信号とを含むデータストリームが記録された記録媒体であって、
前記第1の誤り訂正符号は第1の訂正能力を有し、
前記第2の誤り訂正符号は前記第1の訂正能力よりも高い第2の訂正能力を有し、
前記データストリーム中では、前記第1の誤り訂正符号は、常に前記所定の同期信号と前記第2の誤り訂正符号によって挟まれて記録されるように、前記第1の誤り訂正符号に対して、前記第2の誤り訂正符号と前記所定の同期信号とが交互にインターリーブされ、
前記所定の同期信号の長さと、前記第2の誤り訂正符号の長さは等しい、記録媒体。 - 請求項1に記載の記録媒体に記録されたデータストリームを再生する再生装置。
- 請求項1に記載の記録媒体に記録されたデータストリームを再生し、前記データストリームに含まれる情報に基づいて記録を行う記録装置。
Priority Applications (1)
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JP2006049098A JP4268619B2 (ja) | 2001-07-19 | 2006-02-24 | 記録媒体、再生装置および記録装置 |
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JP2001220510 | 2001-07-19 | ||
JP2006049098A JP4268619B2 (ja) | 2001-07-19 | 2006-02-24 | 記録媒体、再生装置および記録装置 |
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JP2002206142A Division JP3993035B2 (ja) | 2001-07-19 | 2002-07-15 | データ記録方法、記録媒体、および再生装置 |
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JP2008256617A Division JP4814925B2 (ja) | 2001-07-19 | 2008-10-01 | データ記録方法、記録媒体、および再生装置 |
Publications (3)
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JP2006202473A JP2006202473A (ja) | 2006-08-03 |
JP2006202473A5 JP2006202473A5 (ja) | 2008-08-07 |
JP4268619B2 true JP4268619B2 (ja) | 2009-05-27 |
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Family Applications (5)
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JP2002206142A Expired - Lifetime JP3993035B2 (ja) | 2001-07-19 | 2002-07-15 | データ記録方法、記録媒体、および再生装置 |
JP2004280631A Expired - Lifetime JP3621090B1 (ja) | 2001-07-19 | 2004-09-27 | データ記録方法、記録媒体、および再生装置 |
JP2006049098A Expired - Lifetime JP4268619B2 (ja) | 2001-07-19 | 2006-02-24 | 記録媒体、再生装置および記録装置 |
JP2008256617A Expired - Lifetime JP4814925B2 (ja) | 2001-07-19 | 2008-10-01 | データ記録方法、記録媒体、および再生装置 |
JP2010194518A Withdrawn JP2011018436A (ja) | 2001-07-19 | 2010-08-31 | データ記録方法、記録媒体、および再生装置 |
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JP2002206142A Expired - Lifetime JP3993035B2 (ja) | 2001-07-19 | 2002-07-15 | データ記録方法、記録媒体、および再生装置 |
JP2004280631A Expired - Lifetime JP3621090B1 (ja) | 2001-07-19 | 2004-09-27 | データ記録方法、記録媒体、および再生装置 |
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JP2008256617A Expired - Lifetime JP4814925B2 (ja) | 2001-07-19 | 2008-10-01 | データ記録方法、記録媒体、および再生装置 |
JP2010194518A Withdrawn JP2011018436A (ja) | 2001-07-19 | 2010-08-31 | データ記録方法、記録媒体、および再生装置 |
Country Status (9)
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US (10) | US7111222B2 (ja) |
EP (5) | EP2367173A1 (ja) |
JP (5) | JP3993035B2 (ja) |
KR (8) | KR100859279B1 (ja) |
CN (4) | CN100358038C (ja) |
AT (1) | ATE534993T1 (ja) |
AU (1) | AU2002317513A1 (ja) |
ES (1) | ES2375104T3 (ja) |
WO (1) | WO2003009289A2 (ja) |
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