Patent ID: 8074286
Filing Date: 2011-12-06
Classification: H04N

Abstract:
1. A method executing on a media playback device for securely rendering rights-protected media, the method comprising: obtaining a rights-protected media file portion at the media playback device, the media playback device comprising a processor for processing media in a secure media processing environment and an insecure media processing environment, wherein said secure media processing environment has access to an insecure memory and a secure memory, and wherein said insecure media processing environment has access to said insecure memory, but lacks access to said secure memory; performing steps a-d in said secure media processing environment: while said clear media file portion remains temporarily stored in said secure memory, performing step e in said insecure media processing environment: after said manipulated proxy is formed in said insecure memory, performing steps f-h in said secure media processing environment: