Basic Considerations on AVS DRM Architecture

Digital Rights Management (DRM) is an importantinfrastructure for the digital media age. It is a part of the AVS(Audio and Video coding Standard) of China. AVS Trusted Decoder (ATD)that plays back digital media program according to rights conditions isthe core of AVS DRM architecture. Adaptation layers are responsible fortranslating or negotiating between ATD and peripheral systems. ThePackaging Adaptation Layer (PAL), Licensing Adaptation Layer (LAL) andRendering Adaptation Layer (RAL) will help ATD to gain theinteroperability in various DRM environments.