Title:
接続リンクされた権利保護
Document Type and Number:
Japanese Patent JP2007519090
Kind Code:
A
Abstract:
The present invention relates to a method and a system for performing digital rights management. The idea of the invention is that a master right associated with a content is stored at a first authorised device (211). An authorised device is a device which can be considered trusted and performs actions with contents according to the associated rights. These devices enforce rights that are bound to contents, and perform the security tasks of the DRM system employed. A subright is derived from the master right, which subright controls what type of access a second authorised device (261) is given to the associated content. Finally, the subright is distributed to the second authorised device, given that the second device complies with predetermined distribution criteria associated with the master right. The device distributing the subright authenticates the device which is to receive the subright, ensuring that the second device can be trusted.
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Inventors:
Camperman, Francis Cus El Aye
Lockhoff, Heraldussee
Li, phon
E, Darwin
Fontaine, Wilhelmus Fye
Lichens, steffen bae
Sulfur, way in
Way, Gong Min
Lockhoff, Heraldussee
Li, phon
E, Darwin
Fontaine, Wilhelmus Fye
Lichens, steffen bae
Sulfur, way in
Way, Gong Min
Application Number:
JP2006542065A
Publication Date:
July 12, 2007
Filing Date:
November 19, 2004
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
G06F1/00; G06F21/10
Domestic Patent References:
| JP2003198544A | 2003-07-11 | |||
| JP2003323343A | 2003-11-14 | |||
| JPH09160899A | 1997-06-20 | |||
| JP2001344369A | 2001-12-14 | |||
| JP2005166059A | 2005-06-23 | |||
| JPH08263438A | 1996-10-11 | |||
| JPH0981516A | 1997-03-28 |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito