| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a detection system for detecting a user's state without troubling user. <P>SOLUTION: The detection system is provided with a remote controller (200) for operating a display device, a receiving part (120) for receiving information sent from the remote controller (200), a control part (140) for detecting the operation of the remote controller on the basis of the received information, and a storage part (170) for storing operation history detected by the control part (140). <P>COPYRIGHT: (C)2004,JPO</p> |
