Patent ID: 8126996

Claim:
A data providing system comprising: a first communication apparatus; and a plurality of second communication apparatuses configured to provide data to the first communication apparatus using a communication protocol capable of performing authentication by identification information, wherein the first communication apparatus includes: a first common identification information storage unit configured to store common identification information; a data receiving section configured to receive one or more of a first type data and a second type data; a first type data acquiring unit configured to acquire the first type data from at least one of the plurality of second communication apparatuses, wherein the first type data acquiring unit comprises: an individual identification request unit configured to request individual identification information from the at least one second communication apparatus; an individual identification receiving unit configured to receive the individual identification information from the at least one second communication apparatus; and a first data request unit that transmits the individual identification information to the at least one second communication apparatus accompanying a request for the first type data from the at least one second communication apparatus; a second type data acquiring unit configured to acquire the second type data from at least one of the plurality of second communication apparatuses, wherein the second type data acquiring unit comprises: a second data request unit that transmits the common identification information to the at least one second communication apparatus accompanying a request for the second type data from the at least one second communication apparatus; and wherein the at least one second communication apparatus includes: an individual identification information storage unit configured to store the individual identification information; a second common identification information storage unit configured to store the common identification information; an individual identification information request receiving unit configured to receive the individual identification information request sent from the first communication apparatus; an individual identification information sending unit configured to send the individual identification information to the first communication apparatus after receiving the individual identification information request; a data request receiving unit configured to receive one or more of the request for the first type data and the request for the second type data from the first communication apparatus; a first data sending unit configured to send the first type data to the first communication apparatus when the individual identification information accompanies the request for the first type data; and a second data sending unit configured to send the second type data to the first communication apparatus when the common identification information accompanies the request for the second type data.