Patent ID: 8903957

Claim:
A communication system comprising a first information terminal and a second information terminal, the first information terminal being configured to access an information resource that is on a predetermined network and whose storing position is identified by definition information, the definition information defining a time-series change of a marker, wherein the first information terminal comprises: a first definition information acquirer configured to connect to a server that manages the definition information in the predetermined network, and to acquire the definition information; a setter configured to set a use of the definition information acquired by the first definition information acquirer; and an output device configured to output the marker that changes with time based on the definition information, the use of which was set by the setter, and wherein the second information terminal comprises: an imager; a second definition information acquirer configured to acquire the definition information by causing the imager to sequentially take an image that includes the marker outputted by the output device in an imaged area; and a transmitter configured to transmit image data in which the marker is included in the imaged area to the storing position identified by the definition information acquired by the second definition information acquirer; wherein the first information terminal further comprises: an image acquirer configured to acquire the image data in which the marker is included in the imaged area from the storing position after the transmission of the image data by the transmitter; and a display configured to display the image data acquired by the image acquirer.