KR20050046750A - 다중 디지털 판권 관리를 위한 콘텐츠 배포 - Google Patents
다중 디지털 판권 관리를 위한 콘텐츠 배포 Download PDFInfo
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- KR20050046750A KR20050046750A KR1020057003950A KR20057003950A KR20050046750A KR 20050046750 A KR20050046750 A KR 20050046750A KR 1020057003950 A KR1020057003950 A KR 1020057003950A KR 20057003950 A KR20057003950 A KR 20057003950A KR 20050046750 A KR20050046750 A KR 20050046750A
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- content
- drm
- encrypted
- segment
- digital
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
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- H04N21/4627—Rights management associated to the content
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- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
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- H04N9/7925—Processing of colour television signals in connection with recording for more than one processing mode for more than one standard
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
- H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
- H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled
Abstract
Description
Claims (34)
- 다수의 디지털 판권 관리 시나리오(DRM)의 이용을 가능하게 하는 방법으로서,디지털 콘텐츠를 표현하는 암호화되지 않은 데이터를 검사하여, 적어도 암호화를 위한 콘텐츠의 세그먼트를 식별하는 단계;제1 DRM과 관련된 제1 암호화 방법을 이용하여 상기 식별된 콘텐츠의 세그먼트를 암호화하여 제1 암호화된 세그먼트를 생성하는 단계;제2 DRM과 관련된 제2 암호화 방법을 이용하여 상기 식별된 콘텐츠의 세그먼트를 암호화하여, 제2 암호화된 세그먼트를 생성하는 단계;상기 제1 암호화된 콘텐츠의 세그먼트에 대한 제1 포인터를 생성하는 단계;상기 제2 암호화된 콘텐츠의 세그먼트에 대한 제2 포인터를 생성하는 단계; 및상기 디지털 콘텐츠에서 상기 식별된 콘텐츠의 세그먼트를 상기 제1 암호화된 콘텐츠 및 제2 암호화된 콘텐츠로 대체하고, 상기 제1 및 제2 포인터를 삽입하여, 부분적으로 암호화된 이중 DRM 가능 파일을 생성하는 단계를 포함하는 방법.
- 제1항에 있어서, 상기 콘텐츠는 디지털 오디오를 포함하는 방법.
- 제1항에 있어서, 상기 콘텐츠는 디지털 비디오를 포함하는 방법.
- 제1항에 있어서, 상기 제1 DRM 하에서 디지털 판권을 가능하게 하는 데이터를 상기 파일에 첨부하는 단계를 더 포함하는 방법.
- 제1항에 있어서, 상기 제2 DRM 하에서 디지털 판권을 가능하게 하는 데이터를 상기 파일에 첨부하는 단계를 더 포함하는 방법.
- 제1항에 있어서, 상기 제1 및 제2 포인터는 암호화된 콘텐츠의 세그먼트에 대한 시작 위치를 식별하는 바이트 오프셋을 포함하는 방법.
- 제1항에 있어서, 상기 제1 및 제2 암호화된 콘텐츠의 세그먼트는 암호화 양자(guanta)에 의해 정의되는 지속 기간을 갖는 방법.
- 제1항에 있어서,상기 제1 DRM 및 상기 제2 DRM 중 적어도 하나의 DRM 하에서 디지털 판권을 가능하게 하는 데이터를 상기 파일에 첨부하는 단계; 및상기 파일을 고객에게 전송하는 단계를 더 포함하는 방법.
- 프로그래밍된 프로세서 상에서 실행될 때 제1항에 따른 다수의 디지털 판권 관리 시나리오의 이용을 가능하게 하는 방법을 수행하는 명령들을 저장한 컴퓨터 판독 가능 매체.
- 다수의 디지털 판권 관리 시나리오(DRM)의 이용을 가능하게 하는 인코더로서,디지털 콘텐츠를 표현하는 암호화되지 않은 데이터를 검사하여, 적어도 암호화를 위한 콘텐츠의 세그먼트를 식별하는 수단;제1 DRM과 관련된 제1 암호화 방법을 이용하여 상기 식별된 콘텐츠의 세그먼트를 암호화하여 제1 암호화된 세그먼트를 생성하는 제1 암호화기;제2 DRM과 관련된 제2 암호화 방법을 이용하여 상기 식별된 콘텐츠의 세그먼트를 암호화하여, 제2 암호화된 세그먼트를 생성하는 제2 암호화기;상기 제1 암호화된 콘텐츠의 세그먼트에 대한 제1 포인터를 생성하는 수단;상기 제2 암호화된 콘텐츠의 세그먼트에 대한 제2 포인터를 생성하는 수단; 및상기 디지털 콘텐츠에서 상기 식별된 콘텐츠의 세그먼트를 상기 제1 암호화된 콘텐츠 및 제2 암호화된 콘텐츠로 대체하고, 상기 제1 및 제2 포인터를 삽입하여, 부분적으로 암호화된 이중 DRM 가능 파일을 생성하는 수단를 포함하는 인코더.
- 제10항에 있어서, 상기 콘텐츠는 디지털 오디오 및 디지털 비디오 중 적어도 하나를 포함하는 인코더.
- 제10항에 있어서, 상기 제1 DRM 및 상기 제2 DRM 중 적어도 하나의 DRM 하에서 디지털 판권을 가능하게 하는 데이터를 상기 파일에 첨부하는 수단을 더 포함하는 인코더.
- 제10항에 있어서, 상기 제1 및 제2 포인터는 암호화된 콘텐츠의 세그먼트에 대한 시작 위치를 식별하는 바이트 오프셋을 포함하는 인코더.
- 제10항에 있어서, 상기 제1 및 제2 암호화된 콘텐츠의 세그먼트는 암호화 양자에 의해 정의되는 지속 기간을 갖는 인코더.
- 제10항에 있어서,상기 제1 DRM 및 상기 제2 DRM 중 적어도 하나의 DRM 하에서 디지털 판권을 가능하게 하는 데이터를 상기 파일에 첨부하며, 상기 파일을 고객에게 전송하는 인코더.
- 제10항에 있어서, 프로그래밍된 범용 컴퓨터에서 구현되는 인코더.
- 다수의 디지털 판권 관리 시나리오(DRM) 중 하나의 DRM 하에서 디지털 콘텐츠에 대한 판권을 이용하는 방법으로서,트랜잭션을 수행하여 상기 콘텐츠에 대한 디지털 판권을 취득하는 단계;암호화되지 않은 콘텐츠의 세그먼트, 제1 DRM과 관련된 제1 암호화 방법을 이용하여 암호화된 제1 암호화된 콘텐츠의 세그먼트, 제2 DRM과 관련된 제2 암호화 방법을 이용하여 암호화된 제2 암호화된 콘텐츠의 세그먼트, 상기 제1 암호화된 콘텐츠의 세그먼트에 대한 제1 포인터, 상기 제2 암호화된 콘텐츠의 세그먼트에 대한 제2 포인터, 및 상기 제1 DRM 및 상기 제2 DRM 중 적어도 하나의 DRM 하에서 디지털 판권을 가능하게 하는 DRM 데이터를 포함하는 디지털 콘텐츠를 수신하는 단계;상기 DRM 데이터로부터 유효한 디지털 판권이 이용될 수 있음을 판정하는 단계; 및상기 제1 및 제2 암호화된 세그먼트 중 하나를 해독하여 상기 콘텐츠의 재생을 가능하게 하는 단계를 포함하는 방법.
- 제17항에 있어서, 상기 콘텐츠는 디지털 오디오 및 디지털 비디오 중 적어도 하나를 포함하는 방법.
- 제17항에 있어서, 상기 제1 및 제2 포인터는 암호화된 콘텐츠의 세그먼트에 대한 시작 위치를 식별하는 바이트 오프셋을 포함하는 방법.
- 제17항에 있어서, 상기 제1 및 제2 암호화된 콘텐츠의 세그먼트는 암호화 양자에 의해 정의되는 지속 기간을 갖는 방법.
- 프로그래밍된 프로세서 상에서 실행될 때 제17항에 따른 디지털 콘텐츠에 대한 판권을 이용하는 방법을 수행하는 명령들을 저장한 컴퓨터 판독 가능 매체.
- 다수의 디지털 판권 관리 시나리오(DRM) 중 하나의 DRM 하에서 디지털 콘텐츠에 대한 판권의 이용을 가능하게 하는 디코더로서,트랜잭션을 수행하여 상기 콘텐츠에 대한 디지털 판권을 취득하는 수단;암호화되지 않은 콘텐츠의 세그먼트, 제1 DRM과 관련된 제1 암호화 방법을 이용하여 암호화된 제1 암호화된 콘텐츠의 세그먼트, 제2 DRM과 관련된 제2 암호화 방법을 이용하여 암호화된 제2 암호화된 콘텐츠의 세그먼트, 상기 제1 암호화된 콘텐츠의 세그먼트에 대한 제1 포인터, 상기 제2 암호화된 콘텐츠의 세그먼트에 대한 제2 포인터, 및 상기 제1 DRM 및 상기 제2 DRM 중 적어도 하나의 DRM 하에서 디지털 판권을 가능하게 하는 DRM 데이터를 포함하는 디지털 콘텐츠를 수신하는 수단;상기 DRM 데이터로부터 유효한 디지털 판권이 이용될 수 있음을 판정하는 DRM 검증기; 및상기 암호화된 세그먼트들 중 하나를 해독하여 상기 콘텐츠의 재생을 가능하게 하는 해독기를 포함하는 디코더.
- 제22항에 있어서, 상기 콘텐츠는 디지털 오디오 및 디지털 비디오 중 적어도 하나를 포함하는 해독기.
- 제22항에 있어서, 상기 제1 및 제2 포인터는 암호화된 콘텐츠의 세그먼트에 대한 시작 위치를 식별하는 바이트 오프셋을 포함하는 해독기.
- 제22항에 있어서, 상기 제1 및 제2 암호화된 콘텐츠의 세그먼트는 암호화 양자에 의해 정의되는 지속 기간을 갖는 해독기.
- 제22항에 있어서, 프로그래밍된 범용 컴퓨터에서 구현되는 해독기.
- 반송파에서 구현되는 다수의 디지털 판권 관리 시나리오(DRM)의 이용을 가능하게 하는 선택적으로 암호화된 디지털 콘텐츠 신호로서,암호화되지 않은 콘텐츠의 세그먼트,제1 DRM과 관련된 제1 암호화 방법을 이용하여 암호화된 제1 암호화된 콘텐츠의 세그먼트,제2 DRM과 관련된 제2 암호화 방법을 이용하여 암호화된 제2 암호화된 콘텐츠의 세그먼트,상기 제1 암호화된 콘텐츠의 세그먼트에 대한 제1 포인터를 포함하는 코드의 제1 세그먼트,상기 제2 암호화된 콘텐츠의 세그먼트에 대한 제2 포인터를 포함하는 코드의 제2 세그먼트, 및상기 제1 DRM 및 상기 제2 DRM 중 적어도 하나의 DRM 하에서 디지털 판권을 가능하게 하는 DRM 데이터의 세그먼트를 포함하는 신호.
- 제27항에 있어서, 상기 콘텐츠는 디지털 오디오 및 디지털 비디오 중 적어도 하나를 포함하는 반송파.
- 제27항에 있어서, 상기 제1 및 제2 포인터는 암호화된 콘텐츠의 세그먼트에 대한 시작 위치를 식별하는 바이트 오프셋을 포함하는 반송파.
- 제27항에 있어서, 상기 제1 및 제2 암호화된 콘텐츠의 세그먼트는 암호화 양자에 의해 정의되는 지속 기간을 갖는 반송파.
- 컴퓨터 판독 가능 매체에서 구현되는 다수의 디지털 판권 관리 시나리오(DRM)의 이용을 가능하게 하는 선택적으로 암호화된 디지털 콘텐츠 신호로서,암호화되지 않은 콘텐츠의 세그먼트,제1 DRM과 관련된 제1 암호화 방법을 이용하여 암호화된 제1 암호화된 콘텐츠의 세그먼트,제2 DRM과 관련된 제2 암호화 방법을 이용하여 암호화된 제2 암호화된 콘텐츠의 세그먼트,상기 제1 암호화된 콘텐츠의 세그먼트에 대한 제1 포인터를 포함하는 코드의 제1 세그먼트,상기 제2 암호화된 콘텐츠의 세그먼트에 대한 제2 포인터를 포함하는 코드의 제2 세그먼트, 및상기 제1 DRM 및 상기 제2 DRM 중 적어도 하나의 DRM 하에서 디지털 판권을 가능하게 하는 DRM 데이터의 세그먼트를 포함하는 신호.
- 제31항에 있어서, 상기 콘텐츠는 디지털 오디오 및 디지털 비디오 중 적어도 하나를 포함하는 컴퓨터 판독 가능 매체.
- 제31항에 있어서, 상기 제1 및 제2 포인터는 암호화된 콘텐츠의 세그먼트에 대한 시작 위치를 식별하는 바이트 오프셋을 포함하는 컴퓨터 판독 가능 매체.
- 제31항에 있어서, 상기 제1 및 제2 암호화된 콘텐츠의 세그먼트는 암호화 양자에 의해 정의되는 지속 기간을 갖는 컴퓨터 판독 가능 매체.
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US40967502P | 2002-09-09 | 2002-09-09 | |
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PCT/US2003/027774 WO2004023717A2 (en) | 2002-09-09 | 2003-09-08 | Content distribution for multiple digital rights management |
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EP (1) | EP1543650B1 (ko) |
JP (2) | JP2005538453A (ko) |
KR (1) | KR101250615B1 (ko) |
CN (2) | CN1682486A (ko) |
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US20040047470A1 (en) | 2004-03-11 |
US20040049694A1 (en) | 2004-03-11 |
JP2012248201A (ja) | 2012-12-13 |
EP1543650A4 (en) | 2009-03-04 |
US20040049691A1 (en) | 2004-03-11 |
KR101250615B1 (ko) | 2013-04-03 |
US7242773B2 (en) | 2007-07-10 |
CA2498326A1 (en) | 2004-03-18 |
EP1543650B1 (en) | 2016-06-22 |
CA2498326C (en) | 2012-12-04 |
AU2003268468A1 (en) | 2004-03-29 |
CN1682486A (zh) | 2005-10-12 |
CN1682486B (zh) | 2013-08-21 |
JP2005538453A (ja) | 2005-12-15 |
WO2004023717A3 (en) | 2004-12-29 |
EP1543650A2 (en) | 2005-06-22 |
WO2004023717A2 (en) | 2004-03-18 |
US7151833B2 (en) | 2006-12-19 |
US20040049690A1 (en) | 2004-03-11 |
JP5523513B2 (ja) | 2014-06-18 |
US7120250B2 (en) | 2006-10-10 |
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