Invention Grant
- Patent Title: Method and device for excerpt licensing
- Patent Title (中): 摘录许可的方法和设备
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Application No.: US13370865Application Date: 2012-02-10
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Publication No.: US09137493B2Publication Date: 2015-09-15
- Inventor: Eric Diehl , Yves Maetz , Mohamed Karroumi , Stéphane Onno
- Applicant: Eric Diehl , Yves Maetz , Mohamed Karroumi , Stéphane Onno
- Applicant Address: FR Issy les Moulineaux
- Assignee: THOMSON LICENSING
- Current Assignee: THOMSON LICENSING
- Current Assignee Address: FR Issy les Moulineaux
- Agency: Tutunjian & Bitetto, P.C.
- Priority: EP11305133 20110210
- Main IPC: G06F7/04
- IPC: G06F7/04 ; G06F17/30 ; H04N7/16 ; H04L9/00 ; H04L9/08 ; H04N7/167 ; H04N21/8549 ; G06F21/10 ; H04N21/2347 ; H04N21/8355 ; H04N21/845

Abstract:
There are times when a first user may wish to distribute an excerpt of a protected digital content to a second user, for example for criticism. The protected digital content is divided into a plurality of parts, each part being encrypted using a control word specific for the part, wherein each control word can be generated from a master control word for the protected digital content. A device belonging to the first user selects the parts of the excerpt; generates the control words for the selected parts from the master control word; generates a license for the selected parts, the license comprising the control words for the selected parts; and transmits the selected parts and the license to the receiver of the second user. Also provided is the device of the first user.
Public/Granted literature
- US20120210439A1 METHOD AND DEVICE FOR EXCERPT LICENSING Public/Granted day:2012-08-16
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