| 摘要 |
PROBLEM TO BE SOLVED: To provide a remote control device enabling a user to operate a computer without viewing the display device of the computer. SOLUTION: The remote control device 70 is connected through a cable 79 constituted of a two-way serial signal line and a power source state instruction signal line with a portable computer, and provided with an instructing means for giving instruction for the on/off of the power source of the portable computer, a notifying means for notifying the portable computer of the instruction for the on/off of the power source, an operation switch, a microcomputer 81 for reading the state of the operation switch, a transmitting means for transmitting information indicating the state of the operation switch read by the microcomputer to the portable computer, and a display means 71. Also, this device is provided with a voice output terminal 78 with which an attachable/ detachable head phone is connected, and the microcomputer detects that the head phone is not connected with the voice output terminal 78, and the transmitting means transmits the information detected by the microcomputer.
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