Invention Grant
- Patent Title: Systems and methods for secure playback of encrypted elementary bitstreams
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Application No.: US16686727Application Date: 2019-11-18
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Publication No.: US11102553B2Publication Date: 2021-08-24
- Inventor: Francis Yee-Dug Chan , Kourosh Soroushian , Andrew Jeffrey Wood
- Applicant: DIVX, LLC
- Applicant Address: US CA San Diego
- Assignee: DIVX, LLC
- Current Assignee: DIVX, LLC
- Current Assignee Address: US CA San Diego
- Agency: KPPB LLP
- Main IPC: H04L29/06
- IPC: H04L29/06 ; H04N21/6334 ; H04N21/235 ; H04N21/236 ; H04N21/434 ; H04N21/4405 ; H04N7/167 ; H04N21/43

Abstract:
Systems and methods for providing multimedia content from one process or component to another process or component over an unsecured connection are provided. One embodiment includes obtaining the cryptographic information, extracting the at least partially encrypted video data from the container file to create an elementary bitstream, enciphering the cryptographic information, inserting the cryptographic information in the elementary bitstream, providing the elementary bitstream to a video decoder, extracting the cryptographic information from the elementary bitstream at the video decoder, deciphering the cryptographic information, decrypting the elementary bitstream with the cryptographic information and decoding the elementary bitstream for rendering on a display device using the video decoder.
Public/Granted literature
- US1657775A Tomato trimmer Public/Granted day:1928-01-31
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