JP2006516788A - 記録媒体の複写防止情報管理方法と、複写防止情報が記録された記録媒体及びその記録媒体の再生方法 - Google Patents
記録媒体の複写防止情報管理方法と、複写防止情報が記録された記録媒体及びその記録媒体の再生方法 Download PDFInfo
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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
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
- G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark
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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
- 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
- G11B20/00297—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
- G11B20/00311—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-out area [LOA]
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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
- G11B20/00326—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 embossed on the 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
- 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
- G11B20/00485—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier
- G11B20/00492—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein content or user data is encrypted
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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
Abstract
Description
Claims (18)
- 記録媒体に暗号化されたデータを記録すると共に、その暗号化されたデータを解読するのに必要な複写防止情報を予め定めた第1の領域に記録するとともに、その第1の領域以外の第2の領域に少なくとも1回以上記録することを特徴とする記録媒体への複写防止情報記録方法。
- 前記第1の領域は、前記記録媒体で決められているPIC領域であることを特徴とする請求項1に記載の記録媒体への複写防止情報記録方法。
- 前記第2の領域は、前記記録媒体で決められているリードイン領域で、PIC領域以外の領域を含むことを特徴とする請求項1に記載の記録媒体への複写防止情報記録方法。
- 前記第2の領域は、前記記録媒体で決められているリードアウト領域を含むことを特徴とする請求項1に記載の記録媒体への複写防止情報記録方法。
- 前記記録媒体で決められているPIC領域に記録媒体に対するディスク情報を記録するが、第1の領域以外にも前記ディスク情報を複写して記録することを特徴とする請求項1に記載の記録媒体への複写防止情報記録方法。
- 前記記録媒体で決められているPIC領域に前記記録媒体に関するディスク情報を記録するが、そのディスク情報に前記第2の領域に記録された複写防止情報の位置情報を含めて記録することを特徴とする請求項1に記載の記録媒体への複写防止情報記録方法。
- 暗号化されたデータが記録されたデータ領域と;
前記暗号化されたデータを解読するのに必要な複写防止情報が記録された第1の領域と;
前記複写防止情報が複写されて記録された少なくとも一つの第2の領域を含むことを特徴とする記録媒体。 - 前記1の領域は、前記記録媒体で決められているPIC領域であることを特徴とする請求項7に記載の記録媒体。
- 前記2領域は、前記記録媒体で決められているリードイン領域で、PIC領域以外の領域を含むことを特徴とする請求項7に記載の記録媒体。
- 前記2の領域は、前記記録媒体で決められているリードアウト領域を含むことを特徴とする請求項7に記載の記録媒体。
- 前記1領域には、前記複写防止情報が複写された前記2の領域内の位置に対する情報を含むことを特徴とする請求項7に記載の記録媒体。
- ディスク装置で記録媒体を再生する方法において、
暗号化されたデータが収録された記録媒体を駆動させる第1の段階と;
前記記録媒体の第1の領域に記録されている、前記暗号化されたデータを解読するのに必要な複写防止情報を検出する第2の段階と;
前記複写防止情報の検出にエラーが発生すると、前記第1の領域でない他の第2の領域で、複写された複写防止情報を検出してその検出された複写防止情報を用いて前記暗号化されたデータを解読出力する第3の段階とを含むことを特徴とする記録媒体の再生方法。 - 前記1の領域は、前記記録媒体で決められているPIC領域であることを特徴とする請求項12に記載の記録媒体の再生方法。
- 前記第2の領域は、前記記録媒体で決められているリードイン領域で、PIC領域以外の領域を含むことを特徴とする請求項12記載の記録媒体の再生方法。
- 前記第2の領域は、前記記録媒体で決められているリードアウト領域を含むことを特徴とする請求項12に記載の記録媒体の再生方法。
- 前記第3の段階は、前記第1の領域に記録されている、前記記録媒体に対するディスク情報に含まれている、前記複写された複写防止情報の位置情報を把握した後に、その位置に複写された複写防止情報を読みだしてデータ解読に用いることを特徴とする請求項12に記載の記録媒体の再生方法。
- 前記第3の段階は、装置内にあらかじめ定めらている、前記複写された複写防止情報の位置情報を確認した後に、その位置に複写された複写防止情報を読みだしてデータ解読に用いることを特徴とする請求項12に記載の記録媒体の再生方法。
- 前記第3の段階は、前記複写された複写防止情報の検出に失敗すると、さらに他の領域で、複写された複写防止情報を検出することを特徴とする請求項12に記載の記録媒体の再生方法。
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KR1020030004930A KR100952949B1 (ko) | 2003-01-24 | 2003-01-24 | 고밀도 광디스크의 복사 방지 정보 관리방법 |
PCT/KR2004/000113 WO2004066298A1 (en) | 2003-01-24 | 2004-01-24 | Method of managing copy protection information of a recording medium, recording medium with copy protection information for contents recorded thereon, and reproducing method for the recording medium |
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JP2006076370A Division JP4790457B2 (ja) | 2003-01-24 | 2006-03-20 | 記録媒体の複写防止情報管理方法と、複写防止情報が記録された記録媒体及びその記録媒体の再生方法 |
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JP2006516788A5 JP2006516788A5 (ja) | 2006-08-17 |
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JP2006076370A Expired - Fee Related JP4790457B2 (ja) | 2003-01-24 | 2006-03-20 | 記録媒体の複写防止情報管理方法と、複写防止情報が記録された記録媒体及びその記録媒体の再生方法 |
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JP2006076370A Expired - Fee Related JP4790457B2 (ja) | 2003-01-24 | 2006-03-20 | 記録媒体の複写防止情報管理方法と、複写防止情報が記録された記録媒体及びその記録媒体の再生方法 |
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Country | Link |
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US (2) | US8090103B2 (ja) |
EP (2) | EP1586094B1 (ja) |
JP (2) | JP2006516788A (ja) |
KR (1) | KR100952949B1 (ja) |
CN (2) | CN1698115B (ja) |
AT (1) | ATE494613T1 (ja) |
AU (1) | AU2004206485B2 (ja) |
BR (1) | BRPI0403961A (ja) |
CA (1) | CA2487408C (ja) |
DE (1) | DE602004030917D1 (ja) |
MX (1) | MXPA04012594A (ja) |
RU (2) | RU2328778C2 (ja) |
WO (1) | WO2004066298A1 (ja) |
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RU2006109209A (ru) | 2007-09-27 |
ATE494613T1 (de) | 2011-01-15 |
RU2322707C2 (ru) | 2008-04-20 |
EP1650758A2 (en) | 2006-04-26 |
EP1586094A1 (en) | 2005-10-19 |
EP1650758B1 (en) | 2011-01-05 |
BRPI0403961A (pt) | 2005-03-01 |
MXPA04012594A (es) | 2005-07-01 |
RU2005121703A (ru) | 2006-01-20 |
RU2328778C2 (ru) | 2008-07-10 |
EP1650758A3 (en) | 2006-11-29 |
KR100952949B1 (ko) | 2010-04-15 |
US20050209971A1 (en) | 2005-09-22 |
CN1698115A (zh) | 2005-11-16 |
EP1586094B1 (en) | 2013-08-21 |
EP1586094A4 (en) | 2006-12-27 |
KR20040067699A (ko) | 2004-07-30 |
CA2487408C (en) | 2012-10-23 |
WO2004066298A1 (en) | 2004-08-05 |
US20060143480A1 (en) | 2006-06-29 |
AU2004206485B2 (en) | 2009-01-08 |
CA2487408A1 (en) | 2004-08-05 |
CN1822172A (zh) | 2006-08-23 |
JP2006196179A (ja) | 2006-07-27 |
JP4790457B2 (ja) | 2011-10-12 |
US8090103B2 (en) | 2012-01-03 |
US8009832B2 (en) | 2011-08-30 |
CN1698115B (zh) | 2012-07-11 |
DE602004030917D1 (de) | 2011-02-17 |
AU2004206485A1 (en) | 2004-08-05 |
AU2004206485A2 (en) | 2004-08-05 |
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