Patent ID: 7865932

Claim:
A network system, comprising: an information terminal apparatus; and a projector that projects image data on a projector screen and is connectable to the information terminal apparatus via a network, wherein the information terminal apparatus includes: a host information terminal apparatus that supplies the image data to the projector by employing a LAN, and a plurality of client information terminal apparatus other than the host information terminal apparatus that receive the image data and display the image data on a display other than the projector screen, wherein when a network connection between the information terminal apparatus and the projector is established, the image data is commonly shared between the host information terminal apparatus and the plurality of client information terminal apparatus and the plurality of client information terminal apparatus and the host information terminal apparatus are structured such that they are selectively used for displaying and manipulating the image data, and wherein the plurality of client information terminal apparatus is configured to access, via the network, and display image data that has not been projected by the projector, and that is stored on the host information terminal apparatus.