A content protection method for open architectures
Publication Date: 2004-Apr-09
The IP.com Prior Art Database
Proposed is to combine trick mode and stream security, in particular for system with partially accessible connections, such as PCs.
In an inaccessible part of the system, a parser (I-frame detector) behind the decryptor passes I frames to the decompressor.
The parser may interact with a control processor (e.g. for user interface) in the accessible part.