KR100926962B1 - 디지털 저작물을 저장하는 기록매체 - Google Patents
디지털 저작물을 저장하는 기록매체 Download PDFInfo
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- KR100926962B1 KR100926962B1 KR1020037000918A KR20037000918A KR100926962B1 KR 100926962 B1 KR100926962 B1 KR 100926962B1 KR 1020037000918 A KR1020037000918 A KR 1020037000918A KR 20037000918 A KR20037000918 A KR 20037000918A KR 100926962 B1 KR100926962 B1 KR 100926962B1
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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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
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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
- G11B20/00369—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 wherein a first key, which is usually stored on a hidden channel, e.g. in the lead-in of a BD-R, unlocks a key locker containing a second
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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
- G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
- G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
- G11B20/00789—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of functional copies, which can be accessed at a time, e.g. electronic bookshelf concept, virtual library, video rentals or check-in/check out
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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
- G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
- G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
- G11B20/00797—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of times a content can be reproduced, e.g. using playback counters
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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
- G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
- G11B20/0084—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific time or date
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Library & Information Science (AREA)
- Multimedia (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Storage Device Security (AREA)
Abstract
Description
Claims (11)
- 디지털 저작물을 저장하는 기록매체에 있어서,상기 기록매체는, 상기 디지털 저작물에의 액세스를 취득하기 위한 액세스 정보로서, 상기 디지털 저작물의 사용에 응답하여 재생장치에 의해 변경되는 액세스 정보를 저장하는 제 1 데이터 영역과,상기 액세스 정보를 암호화, 복호화 또는 검증하는데 사용되는 은닉채널 정보를 저장하는 은닉채널로서, 준거 재생장치에 의해서만 재기록가능한 은닉채널을 포함하는 제 2 데이터 영역을 구비하고,상기 액세스 정보가 변경되었을 경우에 상기 은닉채널은 준거 장치의 판독 및 기록부가 재기록하지만, 비준거 재생장치에 의해 재기록가능하지 않고, 그에 따라 상기 액세스 정보가 비준거 장치에 의해 변경될 경우에 재기록되지 않으며, 상기 은닉채널 및 상기 액세스 정보는 비준거 장치가 상기 은닉채널을 변경 또는 파괴하여 상기 디지털 저작물을 사용가능하지 않게 하는 것에 의해 상기 액세스 정보를 변경하도록 동일한 물리적 위치의 상기 기록매체 상에 포함되는 것을 특징으로 하는 기록매체.
- 제 1항에 있어서,소정의 데이터의 소정의 런 길이 또는 런 길이 제한된 코드 시퀀스의 제어심볼의 극성을 제어함으로써 상기 은닉채널이 상기 기록매체 상에 저장되는 것을 특징으로 하는 기록매체.
- 제 1항 또는 제 2항에 있어서,상기 액세스 정보가 변경될 때 상기 은닉채널 정보가 변경되는 것을 특징으로 하는 기록매체.
- 제 1항 또는 제 2항에 있어서,상기 액세스 정보는, 사용권이 실행되기 위해 만족시켜야만 하는 1개 이상의 조건을 규정하는 사용권 정보인 것을 특징으로 하는 기록매체.
- 제 1항 또는 제 2항에 있어서,상기 은닉채널은 비준거 재생장치에 의해 액세스 불가능한 것을 특징으로 하는 기록매체.
- 제 1항에 있어서,상기 기록매체는 기록가능한 광 디스크인 것을 특징으로 하는 기록매체.
- 제 1항에 있어서,상기 기록매체는 판독전용 부분과 기록 부분을 포함하는 하이브리드 기록매체인 것을 특징으로 하는 기록매체.
- 기록매체 상에 디지털 저작물을 기록하는 방법에 있어서,상기 방법은, 준거 장치를 사용하여 상기 기록매체 상에 상기 디지털 저작물을 기록하는 단계와,상기 준거 장치 또는 다른 준거 장치를 사용하여, 상기 디지털 저작물에의 액세스를 취득하기 위한 액세스 정보와 상기 액세스 정보를 암호화, 복호화 또는 검증하는데 사용되는 재기록 가능한 은닉채널 정보가 저장되는 은닉채널을 상기 기록매체 상에 기록하는 단계를 포함하고,상기 은닉채널은 상기 액세스 정보가 변경되었을 경우에 상기 준거 장치의 판독 및 기록부에 의해 재기록되지만, 비준거 재생장치에 의해 재기록 가능하지 않으며, 그에 따라 상기 액세스 정보가 비준거 장치에 의해 변경되었을 경우에 재기록되지 않고, 상기 은닉채널과 상기 액세스 정보는 비준거 장치가 상기 은닉채널을 변경 또는 파괴하여 상기 디지털 저작물을 사용가능하지 않게 하는 것에 의해 상기 액세스 정보를 변경하도록 동일한 물리적 위치의 상기 기록매체 상에 포함되는 것을 특징으로 하는 기록방법.
- 기록매체 상에 디지털 저작물을 기록하는 기록장치에 있어서,상기 디지털 저작물을 상기 기록매체 상에 기록하는 제 1 기록수단과,상기 디지털 저작물에의 액세스를 취득하기 위한 액세스정보와 상기 액세스 정보를 암호화, 복호화 또는 검증하는데 사용되는 재기록 가능한 은닉채널 정보가 저장되는 은닉채널을 상기 기록매체 상에 기록하는 제 2 기록수단을 구비하고,상기 제 2 기록수단은 상기 은닉채널과 상기 액세스 정보를 상기 기록매체 상의 동일한 물리적 위치에 기록하고, 상기 은닉채널은 상기 액세스 정보가 변경되었을 경우에 준거 장치의 판독 및 기록부에 의해 재기록되지만, 비준거 재생장치에 의해 재기록가능하지 않으며, 그에 따라 상기 액세스 정보가 비준거 장치에 의해 변경되지 않은 경우에 재기록되지 않고, 상기 은닉채널과 상기 액세스 정보는 비준거 장치가 상기 은닉채널을 변경 또는 파괴하여 상기 디지털 저작물을 사용가능하지 않게 하는 것에 의해 상기 액세스 정보를 변경하도록 동일한 물리적 위치의 상기 기록매체 상에 포함되는 것을 특징으로 하는 기록장치.
- 디지털 저작물을 저장하는 기록매체를 판독하는 판독장치로서,상기 기록매체가 상기 디지털 저작물에의 액세스를 취득하기 위한 액세스 정보와,상기 액세스 정보를 암호화, 복호화 또는 검증하는데 사용되는 재기록 가능한 은닉채널 정보가 저장되는 은닉채널로서, 상기 액세스 정보와 동일한 물리적 위치에서 기록매체 상에 저장되는 은닉채널을 포함하는 판독장치에 있어서,상기 기록매체로부터 디지털 저작물을 판독하는 제 1 판독수단과,상기 디지털 저작물에의 액세스를 취득하기 위한 액세스 정보와 상기 액세스 정보를 암호화, 복호화 또는 검증하는데 사용되는 재기록 가능한 은닉채널 정보가 저장되는 은닉채널을 상기 기록매체로부터 판독하는 제 2 판독수단을 구비하고,상기 은닉채널은 상기 액세스 정보가 변경되었을 경우에 준거 장치의 판독 및 기록부에 의해 재기록되지만, 비준거 재생장치에 의해 재기록가능하지 않으며, 그에 따라 상기 액세스 정보가 비준거 장치에 의해 변경되지 않은 경우에 재기록되지 않고, 상기 은닉채널과 상기 액세스 정보는 비준거 장치가 상기 은닉채널을 변경 또는 파괴하여 상기 디지털 저작물을 사용가능하지 않게 하는 것에 의해 상기 액세스 정보를 변경하도록 동일한 물리적 위치의 상기 기록매체 상에 포함되는 것을 특징으로 하는 판독장치.
- 제 6항에 있어서,상기 기록매체는 CD 또는 DVD인 것을 특징으로 하는 기록매체.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP01201925.3 | 2001-05-22 | ||
EP01201925 | 2001-05-22 | ||
PCT/IB2002/001772 WO2002095748A2 (en) | 2001-05-22 | 2002-05-17 | Record carrier with hidden channel |
Publications (2)
Publication Number | Publication Date |
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KR20030019597A KR20030019597A (ko) | 2003-03-06 |
KR100926962B1 true KR100926962B1 (ko) | 2009-11-17 |
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KR1020037000918A KR100926962B1 (ko) | 2001-05-22 | 2002-05-17 | 디지털 저작물을 저장하는 기록매체 |
Country Status (13)
Country | Link |
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US (1) | US8364981B2 (ko) |
EP (1) | EP1435095A2 (ko) |
JP (5) | JP4944355B2 (ko) |
KR (1) | KR100926962B1 (ko) |
CN (1) | CN100458948C (ko) |
AR (1) | AR033905A1 (ko) |
AU (1) | AU2002258089A1 (ko) |
BR (1) | BR0205394A (ko) |
MX (1) | MXPA03000471A (ko) |
RU (1) | RU2297677C2 (ko) |
TW (1) | TWI239479B (ko) |
WO (1) | WO2002095748A2 (ko) |
ZA (1) | ZA200309056B (ko) |
Families Citing this family (14)
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KR20040104516A (ko) * | 2002-03-18 | 2004-12-10 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 콘텐트에 대한 접근 통제 방법 및 시스템 |
KR100974449B1 (ko) * | 2003-04-24 | 2010-08-10 | 엘지전자 주식회사 | 광디스크의 복사 방지 정보 관리방법 |
KR100974448B1 (ko) * | 2003-04-24 | 2010-08-10 | 엘지전자 주식회사 | 광디스크의 복사 방지 정보 관리방법 |
KR20040092649A (ko) * | 2003-04-24 | 2004-11-04 | 엘지전자 주식회사 | 광디스크의 복사 방지 정보 관리방법 |
KR100972831B1 (ko) * | 2003-04-24 | 2010-07-28 | 엘지전자 주식회사 | 엔크립트된 데이터의 보호방법 및 그 재생장치 |
WO2005055228A1 (en) | 2003-12-02 | 2005-06-16 | Koninklijke Philips Electronics N.V. | Content protection on a record carrier |
KR20050096040A (ko) * | 2004-03-29 | 2005-10-05 | 삼성전자주식회사 | 휴대형 저장장치와 디바이스간에 디지털 저작권 관리를이용한 콘텐츠 재생방법 및 장치와, 이를 위한 휴대형저장장치 |
JP2008523537A (ja) * | 2004-12-13 | 2008-07-03 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | デジタル著作物の配給及び使用を制御する方法及び装置 |
KR100692589B1 (ko) * | 2005-01-06 | 2007-03-13 | 삼성전자주식회사 | Drm 시스템에 적용되는 컨텐츠 재생장치 및 방법그리고 모바일코드 제공장치 및 방법 |
US7681050B2 (en) * | 2005-12-01 | 2010-03-16 | Telefonaktiebolaget L M Ericsson (Publ) | Secure and replay protected memory storage |
US8301906B2 (en) * | 2006-05-10 | 2012-10-30 | Nero Ag | Apparatus for writing information on a data content on a storage medium |
US20080117751A1 (en) * | 2006-11-22 | 2008-05-22 | Read Christopher J | Jukebox disc deterioration testing |
US7978849B2 (en) * | 2007-11-19 | 2011-07-12 | Kabushiki Kaisha Toshiba | Image forming apparatus, and control method thereof |
CN101599936B (zh) * | 2008-06-05 | 2013-04-24 | 华为技术有限公司 | 信息获取方法及系统和终端 |
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- 2002-05-17 JP JP2002592123A patent/JP4944355B2/ja not_active Expired - Fee Related
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- 2002-05-17 CN CNB028024451A patent/CN100458948C/zh not_active Expired - Fee Related
- 2002-05-17 EP EP02727943A patent/EP1435095A2/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
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JP5690363B2 (ja) | 2015-03-25 |
KR20030019597A (ko) | 2003-03-06 |
JP2011181179A (ja) | 2011-09-15 |
BR0205394A (pt) | 2003-07-01 |
CN1554087A (zh) | 2004-12-08 |
JP5256235B2 (ja) | 2013-08-07 |
JP5256326B2 (ja) | 2013-08-07 |
JP2013109826A (ja) | 2013-06-06 |
JP2004527065A (ja) | 2004-09-02 |
AU2002258089A1 (en) | 2002-12-03 |
RU2003136771A (ru) | 2005-03-27 |
EP1435095A2 (en) | 2004-07-07 |
ZA200309056B (en) | 2005-01-06 |
JP4944355B2 (ja) | 2012-05-30 |
JP5739925B2 (ja) | 2015-06-24 |
WO2002095748A3 (en) | 2004-02-26 |
TWI239479B (en) | 2005-09-11 |
WO2002095748A2 (en) | 2002-11-28 |
US8364981B2 (en) | 2013-01-29 |
CN100458948C (zh) | 2009-02-04 |
MXPA03000471A (es) | 2003-10-14 |
JP2010198727A (ja) | 2010-09-09 |
AR033905A1 (es) | 2004-01-07 |
RU2297677C2 (ru) | 2007-04-20 |
JP2013140666A (ja) | 2013-07-18 |
US20030007437A1 (en) | 2003-01-09 |
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