| 摘要 |
PROBLEM TO BE SOLVED: To provide a signal input unit, or the like, capable of more improving user-friendliness.SOLUTION: The signal input unit is configured to include: an input terminal unit 200 including a signal input terminal 210 to which an image signal or a voice signal are input, a signal conversion unit 220 for converting the signal input to the signal input terminal 210 into digital data, and a transmission unit 230 for transmitting the digital data obtained by conversion by the signal conversion unit 220 to a host part 310; the host part 310 which can be connected to the plurality of input terminal units 200; and a host side communication part 320 for transmitting the digital data transmitted to the host part 310 to a projector wirelessly. |
