Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Security kernel or utility
Reexamination Certificate
2008-04-29
2008-04-29
Truong, Thanhnga (Department: 2135)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Security kernel or utility
C713S168000, C380S200000, C380S277000, C705S051000, C705S057000
Reexamination Certificate
active
07366899
ABSTRACT:
An architecture of multilayered DRM protection structure for multimedia service and the method of forming the same are provided. The architecture comprises a multilayered DRM encryption structure and a DRM decryption structure. The inputted multimedia service is decomposed and encrypted into an encrypted multimedia service stream through a multimedia service decomposer and a multimedia DRM organizer. The encrypted stream is decrypted by a DRM composer from top layer to bottom layer. A full or partial multimedia service is then presented. For a multimedia service application, this enhances the DRM protection by increasing the complexity of multimedia encryption for a multimedia service application. It also provides the variety for the multimedia service application via different compositions of multimedia objects. The DRM protection structure is embedded into each layer of multimedia services and objects and can be set up different levels of DRM protection.
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Chung Wen-Hao
Kuan Cheng-Peng
Lin Yu-Jen
Wu Yun-Ei
Industrial Technology Research Institute
Truong Thanhnga
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