JP4458293B2 - 情報記録媒体 - Google Patents
情報記録媒体 Download PDFInfo
- Publication number
- JP4458293B2 JP4458293B2 JP2006529082A JP2006529082A JP4458293B2 JP 4458293 B2 JP4458293 B2 JP 4458293B2 JP 2006529082 A JP2006529082 A JP 2006529082A JP 2006529082 A JP2006529082 A JP 2006529082A JP 4458293 B2 JP4458293 B2 JP 4458293B2
- Authority
- JP
- Japan
- Prior art keywords
- information
- recording
- area
- recorded
- encrypted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B20/1258—Formatting, e.g. arrangement of data block or words on the record carriers on discs where blocks are arranged within multiple radial zones, e.g. Zone Bit Recording or Constant Density Recording discs, MCAV discs, MCLV discs
-
- 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
- G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
- G11B20/00115—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers wherein the record carrier stores a unique medium identifier
-
- 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
-
- 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
-
- 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
- G11B20/00282—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 the content area, e.g. program area, data area or user area
-
- 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]
-
- 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
- G11B20/00528—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 wherein each title is encrypted with a separate encryption key for each title, e.g. title key for movie, song or data file
-
- 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
Description
以下、本発明の情報記録媒体について説明する。
前記再生制御情報は、前記複数の第2記録情報のうち少なくとも一つを特定して再生させる。
以下、本発明の情報記録媒体の実施例について図1から図3を参照して説明する。
次に、図4を参照して、本発明の情報記録媒体に対して、記録動作を行う情報記録装置、並びに、配信動作を行う情報配信装置を備えた配信システムの全体構成について説明する。ここに、図4は、本発明の情報記録媒体に対して、記録動作を行う情報記録装置、並びに、配信動作を行う情報配信装置を備えた配信システムの全体構成を示したブロック図である。尚、図4におけるステップ番号は、後述される図5におけるステップ番号と対応している。また、本実施例に係る配信システムにおいては、DAO(Disk At Once)方式を採用してもよい。
次に、図5に加えて前述した図4を適宜参照して、本発明の情報記録媒体に対して、記録動作を行う情報記録装置、並びに、配信動作を行う情報配信装置を備えた配信システムの配信処理について説明する。ここに、図5は、本発明の情報記録媒体、情報記録装置、並びに、情報配信装置における配信処理を示したフローチャートである。尚、図5におけるステップ番号は、図4におけるステップ番号と対応している。
先ず、図5において、光ディスク100が装填されると、先ず、後述される情報記録装置のCPU(Central Processing Unit)250の制御下で、光ピックアップ202によりシーク動作が行われる(ステップS101)。
情報配信装置300では、先ず、SSL等によって暗号化されたメディアIDを受信する(ステップS201)。
再び、情報記録装置200においては、情報配信装置によって配信された、SSL等によって暗号化された暗号化コンテンツ及びファイルシステムが受信される(ステップS107)。
次に、図6を参照して、本発明の情報記録媒体を記録再生する情報記録再生装置について説明する。この情報記録再生装置200aは、前述した情報記録装置200を含む。ここに、図6は、本発明の情報記録媒体を記録再生する情報記録再生装置の全体構成を示すブロック図である。光ディスク100には、第1クロック信号CK1に同期したピットデータDPが記録マークの長短によって記録されている。この例の記録マークはピットであり、トラックはピット列によって構成される。トラックは、例えばウォブル信号WBに応じて蛇行した形状になっている。ウォブル信号WBは第1クロック信号CK1に同期している。
次に、図7を参照して、本発明の情報記録媒体を再生する情報記録再生装置の実施例による再生動作について説明する。ここに、図7は、本発明の情報再生装置の実施例の一具体例による再生動作の流れを示したフローチャートである。
Claims (3)
- 暗号化情報が予め記録された暗号化情報記録領域と、
再生制御情報に従って再生されると共に、前記暗号化情報に基づいて暗号化された第1記録情報を記録可能な記録情報記録領域と、
前記再生制御情報に従って前記第1記録情報が再生される前に再生される第2記録情報が予め記録された再生専用領域と、
を備え、
前記第2記録情報は、複数種類の前記第1記録情報に夫々対応する複数だけ前記再生専用領域に予めプリ記録されており、
前記再生制御情報は、前記複数の第2記録情報のうち少なくとも一つを特定して再生させることを特徴とする情報記録媒体。 - 前記複数の第2記録情報は、相互に異なる複数の暗号化情報によって夫々暗号化されて前記再生専用領域に予めプリ記録されており、
前記複数の暗号化情報のうち一の暗号化情報が、前記暗号化情報記録領域に予めプリ記録されていることを特徴とする請求項1に記載の情報記録媒体。 - 前記複数の第2記録情報は、一の暗号化情報によって全て暗号化されて前記再生専用領域に予めプリ記録されており、
前記一の暗号化情報が、前記暗号化情報記録領域に予めプリ記録されていることを特徴とする請求項1に記載の情報記録媒体。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004206185 | 2004-07-13 | ||
JP2004206185 | 2004-07-13 | ||
PCT/JP2005/012899 WO2006006619A1 (ja) | 2004-07-13 | 2005-07-13 | 情報記録媒体 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2006006619A1 JPWO2006006619A1 (ja) | 2008-04-24 |
JP4458293B2 true JP4458293B2 (ja) | 2010-04-28 |
Family
ID=35783956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006529082A Expired - Fee Related JP4458293B2 (ja) | 2004-07-13 | 2005-07-13 | 情報記録媒体 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070258339A1 (ja) |
JP (1) | JP4458293B2 (ja) |
CN (1) | CN1985326A (ja) |
WO (1) | WO2006006619A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2133874B1 (en) * | 2007-03-30 | 2011-12-14 | Pioneer Corporation | Information recording medium and advertisement information distributing system |
CA2689528A1 (en) * | 2008-01-31 | 2009-08-06 | Kabushiki Kaisha Kenwood | Method for judging optical disc, optical disc device and program |
JP5026585B2 (ja) * | 2008-04-03 | 2012-09-12 | シャープ株式会社 | 情報記録媒体、情報記録再生装置、情報記録再生装置の制御方法、情報記録プログラム、及びコンピュータ読み取り可能な記録媒体 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0467320A (ja) * | 1990-07-02 | 1992-03-03 | Hitachi Ltd | 情報記録ディスク |
JPH07117926B2 (ja) * | 1992-07-28 | 1995-12-18 | 松下電器産業株式会社 | 通信アプリケーションプログラムインタフェース装置 |
JPH06311481A (ja) * | 1993-04-27 | 1994-11-04 | Fuji Photo Film Co Ltd | 画像再生システムおよび光ディスク |
JPH11296997A (ja) * | 1998-04-10 | 1999-10-29 | Pioneer Electron Corp | 情報記録媒体及び再生装置 |
JP2000011476A (ja) * | 1998-06-29 | 2000-01-14 | Sanyo Electric Co Ltd | 光記録媒体 |
US6895170B1 (en) * | 1998-10-09 | 2005-05-17 | Disney Enterprises, Inc. | Method and apparatus for storage and playback of programs recorded on random access storage media |
EP0994475B1 (en) * | 1998-10-16 | 2001-07-11 | Matsushita Electric Industrial Co., Ltd. | Digital content protection system |
JP2000149443A (ja) * | 1998-11-12 | 2000-05-30 | Victor Co Of Japan Ltd | 情報記録媒体及び情報記録再生装置 |
JP4482970B2 (ja) * | 1999-09-02 | 2010-06-16 | ソニー株式会社 | Dvdレコーダ、dvdレコーダの記録再生方法、およびプログラム記録媒体 |
JP2001101836A (ja) * | 1999-09-28 | 2001-04-13 | Victor Co Of Japan Ltd | 記録媒体、記録媒体更新装置及び記録媒体更新システム |
JP2001209943A (ja) * | 1999-11-17 | 2001-08-03 | Sony Corp | 光ディスク記録再生装置及び情報読取方法 |
TW529020B (en) * | 2000-03-14 | 2003-04-21 | Matsushita Electric Ind Co Ltd | Encrypted data signal, data storage medium, data signal playback apparatus, and data signal recording apparatus |
JP2001307424A (ja) * | 2000-04-21 | 2001-11-02 | Pioneer Electronic Corp | 情報記録装置及び方法、情報再生装置及び方法並びに情報記録媒体 |
JP2002203369A (ja) * | 2000-09-22 | 2002-07-19 | Matsushita Electric Ind Co Ltd | 光ディスク、その再生方法、再生装置および記録装置 |
JP2002324349A (ja) * | 2001-04-26 | 2002-11-08 | Sony Corp | 情報配信方法、情報配信システムおよび情報配信装置 |
WO2003088243A1 (en) * | 2002-04-16 | 2003-10-23 | Koninklijke Philips Electronics N.V. | Allowing recording based on regions |
JP3821768B2 (ja) * | 2002-09-11 | 2006-09-13 | ソニー株式会社 | 情報記録媒体、情報処理装置、および情報処理方法、並びにコンピュータ・プログラム |
JP2004164777A (ja) * | 2002-11-14 | 2004-06-10 | Ricoh Co Ltd | 不正コピー判定機能付プログラムおよび同プログラムを記録した記録媒体 |
JP4030418B2 (ja) * | 2002-12-16 | 2008-01-09 | 松下電器産業株式会社 | データ記録装置 |
CA2472075C (en) * | 2003-06-25 | 2013-02-26 | Matsushita Electric Industrial Co., Ltd. | Optical disk, method for manufacturing the same, and method for recording and method for reproducing data using optical disk |
DE602004021111D1 (de) * | 2003-07-07 | 2009-06-25 | Lg Electronics Inc | Verfahren zum aufzeichnen oder wiedergeben von steuerinformationen |
JP4439521B2 (ja) * | 2004-07-05 | 2010-03-24 | パイオニア株式会社 | 情報記録媒体 |
-
2005
- 2005-07-13 US US11/632,039 patent/US20070258339A1/en not_active Abandoned
- 2005-07-13 CN CNA2005800239168A patent/CN1985326A/zh active Pending
- 2005-07-13 WO PCT/JP2005/012899 patent/WO2006006619A1/ja active Application Filing
- 2005-07-13 JP JP2006529082A patent/JP4458293B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPWO2006006619A1 (ja) | 2008-04-24 |
WO2006006619A1 (ja) | 2006-01-19 |
CN1985326A (zh) | 2007-06-20 |
US20070258339A1 (en) | 2007-11-08 |
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