2005 Fiscal Year Final Research Report Summary
Open Digital Write Management and Processing System for Content Distribution
| Project/Area Number |
15560339
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
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| Research Institution | Waseda University |
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Principal Investigator |
KAMEYAMA Wataru Waseda University, Graduate School of Global Info.and Telecom.Studies, Professor, 大学院・国際情報通信研究科, 教授 (90318858)
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| Co-Investigator(Kenkyū-buntansha) |
SEKI Akiko Waseda University, Graduate School of Global Info.and Telecom.Studies, Assistant Professor, 国際情報通信研究センター, 助手 (60386670)
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| Project Period (FY) |
2003 – 2005
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| Keywords | Security / Content Distribution / Digital Rights Processing / Openness / DRM System |
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| Research Abstract |
The tree year research can be summarized as following five points.
1.We propose a method to transfer and/or combine various rights information by the reliable info-transmission guaranteeing the correctness of the log as recorded at terminal.
2.We propose a method of flexible rights information distribution of rights holders, and also propose and evaluate a method of re-composition and re-editing rights information in a distributed processing way.
3.We propose a scalable method for rights information processing that enables to describe content-viewing rights and corresponding control without any contradictions. By the method, allowed.action(s) against any segment of content and viewing rights relationship among contents can be described. Moreover, "targeting" satisfying users' preferences and new functionality called "content substitution" are enabled. We also evaluate the prototype system.
4.We clarify functions of rights information processing entities and relationship among them. Three entities (license control function, right inheritance control function, and license/right management log function) are essential and enable not only the primary content distribution but also the secondary.
5.We name the future multimedia environment "Content Circulation" where content consumers may act as content creators, circulatedly or repeatedly, and also clarify the issues of secondary content distribution and related rights processing. At generating derived rights information, the proposed language automatically processes and generates it while respecting the original rights and guaranteeing the consistency of rights of the originals and the newly generated ones.
The open issue still remaining is to build up a prototype system in order to validate and evaluate the proposed method of 5.
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