JP4885231B2 - 再生システム - Google Patents
再生システム Download PDFInfo
- Publication number
- JP4885231B2 JP4885231B2 JP2008537346A JP2008537346A JP4885231B2 JP 4885231 B2 JP4885231 B2 JP 4885231B2 JP 2008537346 A JP2008537346 A JP 2008537346A JP 2008537346 A JP2008537346 A JP 2008537346A JP 4885231 B2 JP4885231 B2 JP 4885231B2
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- JP
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- reproduction
- time
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- reproducible
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Images
Classifications
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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
- G11B20/00681—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access
- G11B20/00695—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access said measures preventing that data are read from the recording medium
-
- 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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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
- G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
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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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Television Signal Processing For Recording (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Description
この場合、再生可能時間は、書換え可能に記録されており、決済処理に基づいて、再生可能時間の更新情報を再生装置に供給する更新装置を、さらに備え、再生装置は、供給された更新情報に基づいて、再生可能時間を書き換える書換手段を、さらに有することが好ましい。
なお、以下の構成としても良い。
本発明の再生システムは、複数のコンテンツと、複数のコンテンツ全体でユーザが任意に再生可能な時間である再生可能時間と、を記録した記録媒体と、再生可能時間を取得する取得手段と、各コンテンツの再生時において、複数のコンテンツ全体での累積再生時間が、取得された再生可能時間を超えることになる場合に、各コンテンツの再生を禁止する再生禁止手段と、を有する再生装置と、を備えたことを特徴とする。
なお、各コンテンツの再生中に累積再生時間が再生可能時間を超える場合、当該コンテンツの再生を即座に禁止してもよいし、当該コンテンツについては最後まで再生し、次のコンテンツの再生を禁止するようにしてもよい。
またこの場合、記録媒体は、光ディスクであり、履歴記憶部は、光ディスクに取り付けられた書換可能メモリにより構成されていることが好ましい。
Claims (2)
- 暗号化された複数のコンテンツと、前記複数のコンテンツ全体でユーザが任意に再生可能な時間である再生可能時間と、を記録した記録媒体と、
前記暗号化されたコンテンツを解読して再生する再生手段と、
前記再生可能時間を取得する取得手段と、
前記複数のコンテンツ全体での累積再生時間を記載した再生履歴を、前記記録媒体を識別するための識別情報と関連付けて記憶する履歴記憶部と、
セットされた前記記録媒体の識別情報を認識する認識手段と、
前記複数のコンテンツのなかでユーザが選択したコンテンツの再生時に、認識した前記識別情報と関連付けられた前記再生履歴を参照して、前記累積再生時間が取得した前記再生可能時間を超えるか否かを判定し、前記累積再生時間が前記再生可能時間を超えることになる場合に、前記ユーザが選択したコンテンツの再生を禁止する再生禁止手段と、を有する再生装置と、
を備えたことを特徴とする再生システム。 - 前記再生可能時間は、書換え可能に記録されており、
決済処理に基づいて、前記再生可能時間の更新情報を前記再生装置に供給する更新装置を、さらに備え、
前記再生装置は、供給された更新情報に基づいて、前記再生可能時間を書き換える書換手段を、さらに有することを特徴とする請求項1に記載の再生システム。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2006/319522 WO2008041288A1 (en) | 2006-09-29 | 2006-09-29 | Reproduction system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2008041288A1 JPWO2008041288A1 (ja) | 2010-01-28 |
| JP4885231B2 true JP4885231B2 (ja) | 2012-02-29 |
Family
ID=39268155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008537346A Expired - Fee Related JP4885231B2 (ja) | 2006-09-29 | 2006-09-29 | 再生システム |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8089840B2 (ja) |
| JP (1) | JP4885231B2 (ja) |
| WO (1) | WO2008041288A1 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN2012DN03308A (ja) * | 2009-10-05 | 2015-10-23 | Johnson Controls Tech Co |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05258347A (ja) * | 1992-03-13 | 1993-10-08 | Konica Corp | 光ディスク |
| GB9405753D0 (en) * | 1994-03-23 | 1994-05-11 | Gms Recordings Limited | Interactive compact disk system |
| JP4524523B2 (ja) * | 2000-11-10 | 2010-08-18 | ソニー株式会社 | 記憶媒体、ダウンロード方法及び端末装置 |
| CN1729691A (zh) * | 2002-12-17 | 2006-02-01 | 皇家飞利浦电子股份有限公司 | 使用可拆装介质用于内容重放的移动设备 |
| JP2006524406A (ja) * | 2003-04-22 | 2006-10-26 | 松下電器産業株式会社 | 集約システム |
-
2006
- 2006-09-29 US US12/443,562 patent/US8089840B2/en not_active Expired - Fee Related
- 2006-09-29 JP JP2008537346A patent/JP4885231B2/ja not_active Expired - Fee Related
- 2006-09-29 WO PCT/JP2006/319522 patent/WO2008041288A1/ja not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US8089840B2 (en) | 2012-01-03 |
| JPWO2008041288A1 (ja) | 2010-01-28 |
| WO2008041288A1 (en) | 2008-04-10 |
| US20100027977A1 (en) | 2010-02-04 |
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