KR20050111591A - 액세스 정보를 포함하는 정보매체 - Google Patents
액세스 정보를 포함하는 정보매체 Download PDFInfo
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- KR20050111591A KR20050111591A KR1020057015091A KR20057015091A KR20050111591A KR 20050111591 A KR20050111591 A KR 20050111591A KR 1020057015091 A KR1020057015091 A KR 1020057015091A KR 20057015091 A KR20057015091 A KR 20057015091A KR 20050111591 A KR20050111591 A KR 20050111591A
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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
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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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
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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
-
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
- G11B20/00297—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD
- G11B20/00304—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD the key being stored in the lead-in area [LIA]
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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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
- G11B20/00405—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored by varying characteristics of the recording track, e.g. by altering the track pitch or by modulating the wobble track
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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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
- G11B20/00579—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the data encoding, e.g., modulation schemes violating run-length constraints, causing excessive DC content, or involving uncommon codewords or sync patterns
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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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
- G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
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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
- G11B20/12—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
- G11B2020/1288—Formatting by padding empty spaces with dummy data, e.g. writing zeroes or random data when de-icing optical discs
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- 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
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
- Storage Device Security (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Abstract
Description
Claims (14)
- 사용자 정보를 보유하는 정보매체로서, 이 정보매체가 사용자 정보를 액세스하기 위한 액세스 정보 비트들의 형태를 갖는 액세스 정보를 포함하고, 이 액세스 정보 비트들이 파라미터의 변동으로 정보매체 상에 저장되며, 이 변동이 적분검출에 의해 검출가능한 정보매체에 있어서,상기 액세스 정보 비트들이 소정의 스크램블링 방법에 따라 스크램블되는 것을 특징으로 하는 정보매체.
- 제 1항에 있어서,반전된 특정한 소정의 액세스 정보 비트들을 정보매체에 저장함으로써 상기 액세스 정보가 스크램블되는 것을 특징으로 하는 정보매체.
- 제 1항에 있어서,비트들의 순서를 소정의 의사랜덤 방식으로 변경함으로써 액세스 정보가 스크램블되는 것을 특징으로 하는 정보매체.
- 제 1항, 제 2항 또는 제 3항 중 어느 한 항에 있어서,상기 정보매체가 워블된 프리그루브를 더 포함하고, 상기 액세스 정보 비트들이 워블된 프리그루브의 반경방향의 변동으로 저장되는 것을 특징으로 하는 정보매체.
- 제 1항에 있어서,상기 스크램블링 방법이 정보매체 상에 은닉된 것을 특징으로 하는 정보매체.
- 제 5항에 있어서,상기 스크램블링 방법이 워블된 프리그루브의 반경방향의 편위로 은닉된 것을 특징으로 하는 정보매체.
- 제 5항 또는 제 6항에 있어서,상기 정보매체가, 액세스 정보 비트들을 스크램블할 때 사용하는 소정의 스크램블링 방법을 표시하는 스크램블링 방법 비트들을 포함하는 특수한 영역을 포함하는 것을 특징으로 하는 정보매체.
- 제 7항에 있어서,상기 스크램블링 방법 비트들은 정보매체 상에 파라미터의 변동으로 저장되며, 이 변동은 적분검출에 의해 검출될 수 있는 것을 특징으로 하는 정보매체.
- 제 7항 또는 제 8항에 있어서,특수 영역은 8 스크램블링 방법 비트들을 포함하는 것을 특징으로 하는 정보매체.
- 제 1항 내지 제 9항 중 어느 한 항에 있어서,상기 정보매체는 영구 정보 및 제어(PIC) 데이터 영역을 포함하며, 액세스 정보가 이 PIC 영역에 저장되는 것을 특징으로 하는 정보매체.
- 제 10항에 있어서,상기 액세스 정보는, 사전에 기록된 피트들/랜드들로 PIC 영역에 저장되거나, 사전에 기록된 고주파 변조된 그루브들로 저장되는 것을 특징으로 하는 정보매체.
- 제 1항 내지 제 11항 중 어느 한 항에 기재된 정보매체로부터 정보를 판독하는 장치에 있어서,정보매체에서 사용자 정보 및 액세스 정보를 판독하는 판독부와, 소정의 스크램블링 방법에 따라 스크램블된 액세스 정보 비트들을 디스크램블하며 디스크램블된 액세스 정보에 따라 사용자 정보에 대한 액세스를 제공하는 액세스 제어수단을 구비한 것을 특징으로 하는 판독장치.
- 제 12항에 있어서,상기 액세스 제어수단이 VERILOG 블록에 통합된 것을 특징으로 하는 판독장치.
- 제 12항 또는 제 13항에 있어서,소정의 스크램블링 방법들의 목록을 포함하는 룩업표를 더 구비한 것을 특징으로 하는 판독장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1022743 | 2003-02-20 | ||
NL1022743 | 2003-02-20 |
Publications (2)
Publication Number | Publication Date |
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KR20050111591A true KR20050111591A (ko) | 2005-11-25 |
KR101016988B1 KR101016988B1 (ko) | 2011-02-25 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020057015091A KR101016988B1 (ko) | 2003-02-20 | 2004-02-05 | 액세스 정보를 포함하는 정보매체 |
Country Status (13)
Country | Link |
---|---|
US (1) | US8718277B2 (ko) |
EP (2) | EP1959448B1 (ko) |
JP (2) | JP4672645B2 (ko) |
KR (1) | KR101016988B1 (ko) |
CN (2) | CN101577132B (ko) |
AT (1) | ATE539436T1 (ko) |
CY (1) | CY1113006T1 (ko) |
DK (1) | DK1597727T3 (ko) |
ES (1) | ES2379551T3 (ko) |
PT (1) | PT1597727E (ko) |
SI (1) | SI1597727T1 (ko) |
TW (1) | TWI364968B (ko) |
WO (1) | WO2004075187A1 (ko) |
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2004
- 2004-02-05 KR KR1020057015091A patent/KR101016988B1/ko active IP Right Grant
- 2004-02-05 DK DK04708423.1T patent/DK1597727T3/da active
- 2004-02-05 EP EP08157945.0A patent/EP1959448B1/en not_active Expired - Lifetime
- 2004-02-05 EP EP04708423A patent/EP1597727B1/en not_active Expired - Lifetime
- 2004-02-05 PT PT04708423T patent/PT1597727E/pt unknown
- 2004-02-05 SI SI200431846T patent/SI1597727T1/sl unknown
- 2004-02-05 CN CN200910137854.3A patent/CN101577132B/zh not_active Expired - Lifetime
- 2004-02-05 CN CN2004800046813A patent/CN1751347B/zh not_active Expired - Lifetime
- 2004-02-05 WO PCT/IB2004/050079 patent/WO2004075187A1/en active Application Filing
- 2004-02-05 US US10/545,640 patent/US8718277B2/en active Active
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Also Published As
Publication number | Publication date |
---|---|
US20060190741A1 (en) | 2006-08-24 |
PT1597727E (pt) | 2012-03-22 |
CN101577132A (zh) | 2009-11-11 |
JP4824730B2 (ja) | 2011-11-30 |
JP2006518525A (ja) | 2006-08-10 |
EP1597727B1 (en) | 2011-12-28 |
SI1597727T1 (sl) | 2012-05-31 |
US8718277B2 (en) | 2014-05-06 |
WO2004075187A1 (en) | 2004-09-02 |
TW200423670A (en) | 2004-11-01 |
EP1597727A1 (en) | 2005-11-23 |
DK1597727T3 (da) | 2012-04-16 |
JP4672645B2 (ja) | 2011-04-20 |
CY1113006T1 (el) | 2016-04-13 |
ATE539436T1 (de) | 2012-01-15 |
EP1959448A3 (en) | 2009-07-29 |
EP1959448B1 (en) | 2013-04-10 |
TWI364968B (en) | 2012-05-21 |
CN1751347A (zh) | 2006-03-22 |
EP1959448A2 (en) | 2008-08-20 |
KR101016988B1 (ko) | 2011-02-25 |
JP2009009696A (ja) | 2009-01-15 |
ES2379551T3 (es) | 2012-04-27 |
CN1751347B (zh) | 2011-12-07 |
CN101577132B (zh) | 2015-05-27 |
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