PROJECTOR AND SECURITY CONTROL METHOD

摘要

A projector is connected with an external apparatus so that the projector can communicate with the external apparatus and composes a network together with the external apparatus. The projector is provided with an address corresponding table (2a) where an IP address to identify the external apparatus in the network is stored in association with a MAC address inherent to the external apparatus and a control unit (1) that acquires the MAC address inherent to the external apparatus from the external apparatus identified by the IP address stored at the address corresponding table (2a) and receives a video signal supplied from the outside through the network or a video signal directly inputted to the projector only when the acquired MAC address is consistent with the MAC address stored in association with the IP address at the address corresponding table (2a).