Patent ID: 7920701
Filing Date: 2011-04-05
Classification: H04N

Abstract:
1. A digital content system with improved digital content protection, comprising: a central processing unit (CPU) executing associated software configured to receive an encrypted version of digital content from a source of digital content and in response perform decryption to generate and securely transmit clear text digital data corresponding to said digital content; a bridge coupled to said CPU by a secure data path, said bridge securely receiving from the CPU said clear text digital data corresponding to said digital content; a memory coupled to said bridge by a first insecure data path; a graphics processing unit (GPU) coupled to said bridge by a second insecure data path; and a security engine disposed in said bridge, said security engine providing cryptographic services such that said clear text digital data is encrypted by said security engine and transferred via said bridge over said first insecure data path and said second insecure data path as cipher text to protect said digital content,