Patent ID: 8185645

Claim:
A content delivery system, comprising: a wireless portable terminal that includes a directional wireless carrier transmitter and a directional millimeter-wave receiver; an access point that receives a content from a server and transmits the content to the wireless portable terminal, and a server that delivers the content to the access point, wherein the directional wireless carrier transmitter performs transmission of a first signal indicating a request for conducting first authentication of the wireless portable terminal and for transmitting the content from the server to the access point, to the server via the access point, said transmission of the first signal being triggered by a first operation at the wireless portable terminal; the first authentication is conducted; the access point performs first transmission of the content and accumulates the content upon the first authentication being successful; the directional wireless carrier transmitter performs transmission of a second signal indicating a request for transmitting the content from the access point to the wireless portable terminal, said transmission of the second signal being triggered by a second operation at the wireless portable terminal; and the directional millimeter-wave receiver performs second transmission of the content accumulated in the access point from a millimeter-wave transmitter included in the access point, said second transmission of the content being triggered by the second signal.