Patent ID: 7346579
Filing Date: 2008-03-18
Classification: G06Q,G07F

Abstract:
1. An electronic purse application device for use with a distribution system to distribute programs to a plurality of viewer decoder units, with each viewer decoder unit to allow viewing of said programs, at least a sub-set of said programs being distributed in a form of encrypted data which constitute at least one of a video, audio and data signal, and containing corresponding standard age information for judging approval or disapproval of selling of said encrypted data, said device comprising: an IC card to store electronic money information, age information and encryption key information for decrypting said encrypted data; at least one said viewer decoder unit, said viewer decoder unit to receive distributed said encrypted data and said corresponding standard age information for judging approval or disapproval of selling of said encrypted data, and including a processor to automatically judge approval or disapproval of selling of said encrypted data on a basis of said age information stored in said IC card and said standard age information received by said viewer decoder unit, and to compare a balance of said money information stored in said IC card for adequacy against a price information of said encrypted data, and to subtract a selling price of purchased said encrypted data from said electronic money information of said IC card; and a decoder to decrypt said encrypted data using said encryption key information stored in said IC card when said processor decides approval of selling of said encrypted data.