| 摘要 |
According to the present invention, only one projection-type projector device 1a of three projection-type projector devices 1a through 1c is set to a control-enabled standby mode via a network, and when setting all of the projection-type projector devices 1a through 1c to enable control via the network, the projection-type projector device 1b is switched from an energy-saving mode to the standby mode by outputting a trigger signal from the projection-type projector device 1a to the projection-type projector device 1b, and the projection-type projector device 1c is switched from the energy-saving mode to the standby mode by outputting a trigger signal from the projection-type projector device 1b, which has been switched to the standby mode, to the projection-type projector device 1c. |
