Invention Grant
- Patent Title: Method of access to multimedia content protected by a terminal
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Application No.: US15326904Application Date: 2015-07-10
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Publication No.: US10142683B2Publication Date: 2018-11-27
- Inventor: Amine Dogui
- Applicant: Viaccess
- Applicant Address: FR Paris la Defense
- Assignee: VIACCESS
- Current Assignee: VIACCESS
- Current Assignee Address: FR Paris la Defense
- Agency: Occhiuti & Rohlicek LLP
- Priority: FR1456806 20140716
- International Application: PCT/FR2015/051928 WO 20150710
- International Announcement: WO2016/009140 WO 20160121
- Main IPC: H04N21/4405
- IPC: H04N21/4405 ; H04L29/06 ; H04N5/913 ; H04N21/4408 ; H04N21/433 ; G06F21/10

Abstract:
A method for accessing protected multimedia includes receiving an encrypted fragment of the multimedia content and receiving a key for decrypting it, using the key to decrypt the fragment, thereby obtaining an unscrambled fragment, replacing original bits of the unscrambled fragment with different substituted bits to obtain a modified fragment, and reconstructing the modified fragment is reconstructed by replacing substituted bits of the extracted modified fragment with the original bits. The resulting reconstructed fragment is then decoded and the resulting decoded fragment is sent to a multimedia appliance to be enjoyed by a human viewer.
Public/Granted literature
- US20170208361A1 METHOD OF ACCESS TO MULTIMEDIA CONTENT PROTECTED BY A TERMINAL Public/Granted day:2017-07-20
Information query
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