Patent ID: 7725876

Claim:
An original content creation apparatus configured to output original content, comprising: a memory configured to store the original content, the original content including audio or video data, or information used to access the audio or video data; a processing apparatus configured to communicatively interface with a derived content creation apparatus configured to generate derived content from the original content that is usable by a derived content replay apparatus; a limitation rule acquisition unit configured to acquire, from the memory, a limitation rule that indicates an attribute of secondary content that is permitted to be inserted into the original content; a joining unit configured to join the limitation rule and a first operation rule to the original content, the first operation rule defining an operation of the derived content creation apparatus or the derived content replay apparatus in response to a detection that an insertion of the secondary content violates the limitation rule; a signature unit configured to give an electronic signature to the original content to which the limitation rule and the first operation rule are joined, wherein the original content includes a placeholder designating an place for the secondary content to be inserted by the derived content creation apparatus; and a receiving unit configured to receive a placeholder request including identification information of the placeholder from the derived content creation apparatus.