Digital recording apparatus and copyright protection method thereof

A copyright protection system 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 system comprises:

• a control data process unit configured to generate, analyze, and process a control data packet in the digital signal transmitted/received via a digital interface;
• and
• a real time data processing unit configured to analyze and process 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:
• the second copyright information indicating at least whether the audiovisual content data is copy-free,
• the third copyright information relating to an existence of the first copyright information in the audiovisual content data, and
• the fourth copyright information relating to format type of the audiovisual content data, and
• wherein a definition and format of the first copyright information is specific to each format type of the audiovisual content data.

An information processing apparatus to implement a copyright protection of a digital signal to be transmitted to another 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 apparatus comprises:

• a control data process unit configured to generate, analyze, and process a control data packet in the digital signal transmitted/received via a digital interface;
• and
• a real time data processing unit configured to analyze and process 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:
• the second copyright information indicating at least whether the audiovisual content data is copy-free,
• the third copyright information relating to an existence of the first copyright information in the audiovisual content data, and
• the fourth copyright information relating to format type of the audiovisual content data, and
• wherein a definition and format of the first copyright information is specific to each format type of the audiovisual content data.

A copyright protection system 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 system comprises:

• means for generating, analyzing, and processing a control data packet in the digital signal transmitted/received via a digital interface;
• and
• means for 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:
• the second copyright information indicating at least whether the audiovisual content data is copy-free,
• the third copyright information relating to an existence of the first copyright information in the audiovisual content data, and
• the fourth copyright information relating to format type of the audiovisual content data, and
• wherein a definition and format of the first copyright information is specific to each format type of the audiovisual content data.