Providing secure content-based user experience enhancement in a player device for rendering digital content includes accepting encrypted digital content, decrypting the encrypted digital content into decrypted digital content, downsampling the decrypted digital content into downsampled digital content;...http://www.google.co.uk/patents/US20020097872?utm_source=gb-gplus-sharePatent US20020097872 - Method of providing secure content-based user experience enhancement within a content protection architecture
