Patent ID: 7467297
Filing Date: 2008-12-16
Classification: H04N

Abstract:
1. A content provider side apparatus for an intellectual property management and protection (IPMP) system for Moving Picture Expert Group-2 (MPEG-2) content distribution and protection, comprising: an encoder that encodes a content into an MPEG-2 content stream; an encryptor that encrypts the encoded MPEG-2 content stream using at least one IPMP tool; an IPMP tool list creator that creates an IPMP tool list of at least one IPMP tool used for encrypting the encoded content; a control graph creator that creates an IPMP control graph that indicates how the at least one IPMP tool protects the MPEG-2 content stream; a control information multiplexer that multiplexes IPMP control information including the IPMP tool list into an IPMP control information table for a transport stream; and a general multiplexer that multiplexes the encrypted content stream with the IPMP control information table, using an MPEG-2 system, an outputter that outputs the multiplexed encrypted content stream.