NO20064311L - Fremgangsmate og anordning for kryptering av en datastrom - Google Patents
Fremgangsmate og anordning for kryptering av en datastromInfo
- Publication number
- NO20064311L NO20064311L NO20064311A NO20064311A NO20064311L NO 20064311 L NO20064311 L NO 20064311L NO 20064311 A NO20064311 A NO 20064311A NO 20064311 A NO20064311 A NO 20064311A NO 20064311 L NO20064311 L NO 20064311L
- Authority
- NO
- Norway
- Prior art keywords
- encryption
- recorders
- streams
- circuit
- encrypting
- Prior art date
Links
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
- G11B20/00086—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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Storage Device Security (AREA)
Abstract
Gjeldende lovgivning forutsetter en mulighet for kryptering når fjernsynsprogrammer som er mottatt ved en kringkastning blir lagret. Imidlertid vil tidligere avspillingsanordninger ikke være i stand til å avspille slike krypterte data på vanlig måte, men eventuelt på en ukorrekt måte. Dette kan resultere i problemer slik som skade på høyttalere. Derfor har oppfinnelsen til hensikt å skjule eventuelle slike strømmer som kan forårsake skader ved med hensikt å forsyne slike strømmer med en ukorrekt identifikasjon i løpet krypteringsprosessen. Oppfinnelsen tilveiebringer blant annet en fremgangsmåte og anordning, som for eksempel en krets, for kryptering og en fremgangsmåte og en anordning, som for eksempel en krets, for dekryptering. Oppfinnelsen er spesielt egnet for DVD-opptakere, men kan også benyttes for andre videoopptakere og/eller audioopptakere. Oppfinnelsen kan til og med bli anvendt for kryptering av data som ikke har audiovisuell karakter.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04100708 | 2004-02-23 | ||
EP04100754 | 2004-02-26 | ||
PCT/IB2005/050594 WO2005081544A2 (en) | 2004-02-23 | 2005-02-17 | Method and circuit for encrypting a data stream |
Publications (1)
Publication Number | Publication Date |
---|---|
NO20064311L true NO20064311L (no) | 2006-09-22 |
Family
ID=34889024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20064311A NO20064311L (no) | 2004-02-23 | 2006-09-22 | Fremgangsmate og anordning for kryptering av en datastrom |
Country Status (12)
Country | Link |
---|---|
US (1) | US20080226067A1 (no) |
EP (1) | EP1721472A2 (no) |
JP (1) | JP2007524311A (no) |
AR (1) | AR047892A1 (no) |
AU (1) | AU2005214436A1 (no) |
BR (1) | BRPI0507906A (no) |
CA (1) | CA2557014A1 (no) |
IL (1) | IL177595A0 (no) |
NO (1) | NO20064311L (no) |
RU (1) | RU2006133896A (no) |
TW (1) | TW200534719A (no) |
WO (1) | WO2005081544A2 (no) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7974411B2 (en) * | 2008-01-31 | 2011-07-05 | International Business Machines Corporation | Method for protecting audio content |
US7978853B2 (en) * | 2008-01-31 | 2011-07-12 | International Business Machines Corporation | System and computer program product for protecting audio content |
JP5205075B2 (ja) * | 2008-02-13 | 2013-06-05 | パナソニック株式会社 | 暗号処理方法、暗号処理装置、復号処理方法および復号処理装置 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03254470A (ja) * | 1990-03-02 | 1991-11-13 | Fujitsu Ltd | Cd―rom音データ部分の機密保護方法 |
JPH09139937A (ja) * | 1995-11-14 | 1997-05-27 | Fujitsu Ltd | 動画ストリーム変換装置 |
WO1998000952A1 (fr) * | 1996-07-02 | 1998-01-08 | Sony Corporation | Emetteur d'informations et procede d'emission d'informations |
WO1999031657A2 (en) * | 1997-12-15 | 1999-06-24 | Matsushita Electric Industrial Co., Ltd. | Optical disc, optical disc recording apparatus, and optical disc recording method for facilitating dubbing, storage medium for storing optical disc recording program for facilitating dubbing, optical disc reproducing apparatus, and optical disc reproducing method |
EP1021048A3 (en) * | 1999-01-14 | 2002-10-02 | Kabushiki Kaisha Toshiba | Digital video recording system and its recording medium |
US6810131B2 (en) * | 2000-01-05 | 2004-10-26 | Canon Kabushiki Kaisha | Information processing method and apparatus |
DE60131040T2 (de) * | 2000-01-12 | 2008-02-07 | Matsushita Electric Industrial Co., Ltd., Kadoma | Digitaler Rundfunkempfänger |
US7023858B2 (en) * | 2000-04-14 | 2006-04-04 | Sony Corporation | Data delivery in set-top box |
NZ506002A (en) * | 2000-07-26 | 2003-01-31 | Rpk New Zealand Ltd | Encryption processing for streaming media by assigning tag value, creating packet key, encrypting data and adding tag value |
US20020025045A1 (en) * | 2000-07-26 | 2002-02-28 | Raike William Michael | Encryption processing for streaming media |
US6996101B2 (en) * | 2000-11-29 | 2006-02-07 | International Business Machines Corporation | Re-mapping and interleaving transport packets of multiple transport streams for processing by a single transport demultiplexor |
CN1236608C (zh) * | 2001-01-19 | 2006-01-11 | 松下电器产业株式会社 | 重放装置和方法、记录装置和方法、以及输出和输入装置 |
JP3607627B2 (ja) * | 2001-02-26 | 2005-01-05 | 株式会社東芝 | アスペクト比情報の整合処理機能付き情報録再装置および方法 |
US7139398B2 (en) * | 2001-06-06 | 2006-11-21 | Sony Corporation | Time division partial encryption |
DE10163152A1 (de) * | 2001-12-20 | 2003-07-03 | Thomson Brandt Gmbh | MPEG-Video-Aufzeichnungsträger und Wiedergabegerät |
US7765567B2 (en) * | 2002-01-02 | 2010-07-27 | Sony Corporation | Content replacement by PID mapping |
KR100989015B1 (ko) * | 2002-01-02 | 2010-10-20 | 소니 일렉트로닉스 인코포레이티드 | 부분적으로 암호화된 정보의 암호해독 및 디코딩 |
JP2003203422A (ja) * | 2002-01-10 | 2003-07-18 | Sony Corp | ディスク記録媒体、再生装置、再生方法 |
JP3896949B2 (ja) * | 2002-11-08 | 2007-03-22 | 日本電気株式会社 | ビデオ編集装置及びビデオ編集プログラム |
US7310423B2 (en) * | 2003-04-24 | 2007-12-18 | General Instrument Corporation | Processing multiple encrypted transport streams |
-
2005
- 2005-02-17 RU RU2006133896/28A patent/RU2006133896A/ru not_active Application Discontinuation
- 2005-02-17 BR BRPI0507906-3A patent/BRPI0507906A/pt not_active IP Right Cessation
- 2005-02-17 CA CA002557014A patent/CA2557014A1/en not_active Abandoned
- 2005-02-17 US US10/598,025 patent/US20080226067A1/en not_active Abandoned
- 2005-02-17 EP EP05702996A patent/EP1721472A2/en not_active Withdrawn
- 2005-02-17 AU AU2005214436A patent/AU2005214436A1/en not_active Abandoned
- 2005-02-17 WO PCT/IB2005/050594 patent/WO2005081544A2/en active Application Filing
- 2005-02-17 JP JP2006553751A patent/JP2007524311A/ja active Pending
- 2005-02-18 TW TW094104900A patent/TW200534719A/zh unknown
- 2005-02-23 AR ARP050100651A patent/AR047892A1/es unknown
-
2006
- 2006-08-21 IL IL177595A patent/IL177595A0/en unknown
- 2006-09-22 NO NO20064311A patent/NO20064311L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2005081544A3 (en) | 2006-02-23 |
JP2007524311A (ja) | 2007-08-23 |
BRPI0507906A (pt) | 2007-07-10 |
US20080226067A1 (en) | 2008-09-18 |
TW200534719A (en) | 2005-10-16 |
RU2006133896A (ru) | 2008-03-27 |
AU2005214436A1 (en) | 2005-09-01 |
IL177595A0 (en) | 2006-12-10 |
CA2557014A1 (en) | 2005-09-01 |
AR047892A1 (es) | 2006-03-01 |
WO2005081544A2 (en) | 2005-09-01 |
EP1721472A2 (en) | 2006-11-15 |
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Legal Events
Date | Code | Title | Description |
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FC2A | Withdrawal, rejection or dismissal of laid open patent application |