Patent ID: 7475415
Filing Date: 2009-01-06
Classification: H04H,H04N

Abstract:
1. A receiver comprising: a receiving section for receiving a first communication signal through a first communication system, the first communication signal including a plurality of contents with corresponding content identifiers, the first communication signal further including limitation information for a particular content, wherein the limitation information differs from the content identifier corresponding to the particular content; a transmitting and receiving section requesting a transmission of a second communication signal containing release information and receiving said second communication signal through a second communication system enabling bi-directional communications; an operation section through which a user designates one of the content identifiers; a matching detection section for making a judgment as to whether or not said release information matches said limitation information when the user designates the content identifier for the particular content; and an output section configured to prevent normal outputting of at least one portion of said particular content when a match is not detected between said release information and said limitation information, and to output said particular content normally when a match is detected between said release information and said limitation information; wherein said first communication signal contains transmission source information for specifying a transmission source in order to obtain said release information that matches said limitation information corresponding to said contents constituted by said first communication signal, and wherein said receiver receives said second communication signal automatically by obtaining said transmission source information contained in said first communication signal.