Patent ID: 8050536
Filing Date: 2011-11-01
Classification: G11B,H04L,H04N

Abstract:
1. A copyright protection method of a digital signal to be transmitted to an information processing apparatus, based on a first copyright information, a second copyright information, a third copyright information, and a fourth copyright information included in the transmitted digital signal, wherein said method comprises: generating, analyzing, and processing a control data packet in the digital signal transmitted/received via a digital interface; and analyzing and processing a real time data packet in the digital signal received via the digital interface; wherein the real time data packet includes a first header as a transmission packet header and a first data field, the first data field including a second header and a second data field, wherein audiovisual content data is transmitted on the second data field and the first copyright information is embedded in the audiovisual content data, wherein the second header includes: wherein a definition and format of the first copyright information is specific to each format type of the audiovisual content data.