METHOD, PROGRAM, SERVER FOR COLLECTING VIEWER INFORMATION, INFORMATION ADDITION SERVER AND BROADCAST RECEIVING TERMINAL

摘要

PROBLEM TO BE SOLVED: To provide technology for protecting privacy of a viewer from eavesdropping in a transfer process of viewer information to be collected regarding technology for collecting information from the viewer via a network in broadcast utilizing the Internet, etc. SOLUTION: The viewer information e is collected from the viewer B of the broadcast utilizing the Internet by the technology including a broadcasting station A which distributes a broadcast program (a) at least including an information list c, an encryption key Kpand video content b, a broadcast receiving terminal 60 which encrypts the viewer information e which the viewer B creates by being prompted by the distributed information list c by the encryption key Kpand transmits the information to the Internet 20, a viewer information collection server 80 which receives the encrypted viewer information f and decrypts it by a decryption key KIpaired with the encryption key Kp. COPYRIGHT: (C)2005,JPO&NCIPI