Patent ID: 7243241
Filing Date: 2007-07-10
Classification: G06F

Abstract:
1. A data distributing system comprising: one or more user machines, each user machine having: a first identification storing unit in which first identification data that is unique to an equipment and second identification data corresponding to said first identification data has been stored, wherein said first identification storing unit is formed in a single integrated circuit; a first transmitting/receiving unit for transmitting distributing request data together with said first identification data read out from said first storing unit and for receiving transmitted data; a first data storing unit for storing the data received by said first transmitting/receiving unit; a first signal processing unit for performing a decoding process to the data read out from said first data storing unit based on said second identification data stored in said first identification storing unit, wherein said first signal processing unit is formed in said single integrated circuit; and a first control unit for performing an operation to allow the data received by said first transmitting/receiving unit to be stored into said first data storing unit and controlling the decoding process of the data read out from said first data storing unit by said first signal processing unit; and, a contents server having: a second transmitting/receiving unit for receiving said first identification data and said distribution request data transmitted form said first transmitting/receiving unit and for transmitting data; a second data storing unit in which a plurality of data is stored and which outputs data corresponding to said distribution request data; an identification database storing unit which stores an identification database indicating a relationship between a plurality of first identification data and a plurality of second identification data; a second signal processing unit for performing an enciphering process to the data outputted from said second data storing unit based on second identification data read out from said identification database corresponding to said first identification data transmitted from said first transmitting/receiving unit; and a second control unit for performing a reading control of said second identification data from said identification database storing unit based on said distribution request data and said first identification data which were transmitted and performing a reading control of the data from said second data storing unit based on said distribution request data, wherein the data enciphered on the basis of said second identification data is transmittable by way of said second transmitting/receiving unit to said first transmitting/receiving unit of the respective user machine and is decodable by said first signal processing unit, wherein said first signal identification storing unit and said first signal processing unit are formed in said single integrated circuit, and wherein the second identification data is not transmitted between the respective user machine and the contents server or between the contents server and the respective user machine.