The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2008
Filed:
May. 04, 2004
Cheng-peng Kuan, Taipei, TW;
Yu-jen Lin, Chiayi Hsien, TW;
Wen-hao Chung, Sanchong, TW;
Yun-ei Wu, Jhongli, TW;
Cheng-Peng Kuan, Taipei, TW;
Yu-Jen Lin, Chiayi Hsien, TW;
Wen-Hao Chung, Sanchong, TW;
Yun-Ei Wu, Jhongli, TW;
Industrial Technology Research Institute, Hsinchu, TW;
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.