TW565765B - The copy protection of digital data - Google Patents
The copy protection of digital data Download PDFInfo
- Publication number
- TW565765B TW565765B TW091113232A TW91113232A TW565765B TW 565765 B TW565765 B TW 565765B TW 091113232 A TW091113232 A TW 091113232A TW 91113232 A TW91113232 A TW 91113232A TW 565765 B TW565765 B TW 565765B
- Authority
- TW
- Taiwan
- Prior art keywords
- data
- value
- digital data
- code
- changed
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 53
- 230000008859 change Effects 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 16
- 239000013598 vector Substances 0.000 description 14
- 238000012937 correction Methods 0.000 description 13
- 239000011159 matrix material Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 239000000523 sample Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 230000004807 localization Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 206010041235 Snoring Diseases 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000011257 shell material Substances 0.000 description 2
- 208000011580 syndromic disease Diseases 0.000 description 2
- NNJPGOLRFBJNIW-HNNXBMFYSA-N (-)-demecolcine Chemical compound C1=C(OC)C(=O)C=C2[C@@H](NC)CCC3=CC(OC)=C(OC)C(OC)=C3C2=C1 NNJPGOLRFBJNIW-HNNXBMFYSA-N 0.000 description 1
- 108091007065 BIRCs Proteins 0.000 description 1
- 241000252254 Catostomidae Species 0.000 description 1
- 241001247287 Pentalinon luteum Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0092—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
- G11B20/00927—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches
-
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- 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
- G11B20/10527—Audio or video recording; Data buffering arrangements
-
- 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
- G11B20/1806—Pulse code modulation systems for audio signals
- G11B20/1809—Pulse code modulation systems for audio signals 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
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/13—Linear codes
- H03M13/15—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
-
- 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
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/13—Linear codes
- H03M13/15—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
- H03M13/151—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes using error location or error correction polynomials
-
- 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
- H03M13/2906—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 block codes
- H03M13/2921—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 block codes wherein error correction coding involves a diagonal direction
- H03M13/2924—Cross interleaved Reed-Solomon codes [CIRC]
-
- 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
- G11B20/1876—Interpolating methods
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Probability & Statistics with Applications (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Error Detection And Correction (AREA)
- Storage Device Security (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0116278A GB2377511B (en) | 2001-07-03 | 2001-07-03 | The copy protection of digital data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW565765B true TW565765B (en) | 2003-12-11 |
Family
ID=9917869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW091113232A TW565765B (en) | 2001-07-03 | 2002-06-18 | The copy protection of digital data |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20040199855A1 (enExample) |
| EP (1) | EP1410387A1 (enExample) |
| JP (1) | JP2004534347A (enExample) |
| AR (1) | AR034673A1 (enExample) |
| GB (1) | GB2377511B (enExample) |
| TW (1) | TW565765B (enExample) |
| WO (1) | WO2003005355A1 (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2382670A (en) * | 2001-07-25 | 2003-06-04 | Macrovision Corp | A method of copy protection of digital data by altering codewords to introduce impulse errors which are then marked as uncorrectable |
| DE60308667T2 (de) * | 2002-03-28 | 2007-08-23 | Koninklijke Philips Electronics N.V. | Wasserzeichenzeitskalensuchen |
| JP2004214887A (ja) * | 2002-12-27 | 2004-07-29 | Philips Japan Ltd | データ処理装置、データ記録再生装置、データ処理方法及びプログラム |
| GB2397911B (en) * | 2003-01-10 | 2005-03-09 | Macrovision Corp | The copy protection of digital data |
| US8266709B2 (en) | 2009-02-04 | 2012-09-11 | Harris Technology, Llc | Adjustable resolution media format |
| US8930780B2 (en) * | 2012-08-28 | 2015-01-06 | Lsi Corporation | Systems and methods for non-zero syndrome based processing |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5602815A (en) * | 1994-08-09 | 1997-02-11 | Wea Manufacturing, Inc. | Method and apparatus for combining CD-ROM data and digital audio on a single disc |
| JP3430193B2 (ja) * | 1997-01-20 | 2003-07-28 | 株式会社日立製作所 | ディジタル信号再生装置及びディジタル信号再生方法 |
| JP3888473B2 (ja) * | 1997-05-30 | 2007-03-07 | マクロヴィジョン ユーロップ リミティッド | 記録担体のコピー保護方法、コピー保護された記録担体およびアクセス制御情報を検出する方法 |
| US6381713B1 (en) * | 1999-05-11 | 2002-04-30 | Ericsson Inc. | Method for responding to transmission errors in a digital communication system according to characteristics of flawed information fields |
| IL131545A0 (en) * | 1999-08-23 | 2001-01-28 | Ttr Technologies Ltd | Copy-protected digital audio compact disc and method and system for producing same |
| IL133236A0 (en) * | 1999-11-30 | 2001-03-19 | Ttr Technologies Ltd | Copy-protected digital audio compact disc and method and system for producing same |
| US6715122B2 (en) * | 2000-02-23 | 2004-03-30 | Doug Carson & Associates, Inc. | Copy protection through symbol substitution and induced errors |
| GB2415826B (en) * | 2002-03-08 | 2006-06-07 | First 4 Internet Ltd | Data protection system |
| GB2397911B (en) * | 2003-01-10 | 2005-03-09 | Macrovision Corp | The copy protection of digital data |
-
2001
- 2001-07-03 GB GB0116278A patent/GB2377511B/en not_active Expired - Fee Related
-
2002
- 2002-03-21 US US10/482,435 patent/US20040199855A1/en not_active Abandoned
- 2002-03-21 EP EP02713042A patent/EP1410387A1/en not_active Withdrawn
- 2002-03-21 JP JP2003511239A patent/JP2004534347A/ja active Pending
- 2002-03-21 WO PCT/GB2002/001360 patent/WO2003005355A1/en not_active Ceased
- 2002-06-18 TW TW091113232A patent/TW565765B/zh not_active IP Right Cessation
- 2002-07-01 AR ARP020102474A patent/AR034673A1/es not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2377511A (en) | 2003-01-15 |
| EP1410387A1 (en) | 2004-04-21 |
| US20040199855A1 (en) | 2004-10-07 |
| JP2004534347A (ja) | 2004-11-11 |
| GB0116278D0 (en) | 2001-08-29 |
| AR034673A1 (es) | 2004-03-03 |
| WO2003005355A1 (en) | 2003-01-16 |
| GB2377511B (en) | 2005-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GD4A | Issue of patent certificate for granted invention patent | ||
| MM4A | Annulment or lapse of patent due to non-payment of fees |