公开(公告)号：JP2002055777A

公开(公告)日：2002-02-20

申请号：JP2001203680

申请日：2001-07-04

Applicant: PRIMAX ELECTRONICS LTD

Inventor： WANG DING JONG ,  LIANG KUANG KAI ,  CHOU PIN CHENG ,  CHANG MING CHEN

IPC: G06F3/033 ,  G06F3/038

Abstract: PROBLEM TO BE SOLVED: To provide a pointing device capable of displaying a message to be transmitted from a computer so that a user can directly know the state of the computer from the illumination mode of a rotatable device. SOLUTION: This pointing device is electrically connected to a computer, and used for controlling the movement of a cursor on the display device of the computer. The pointing device is provided with a case body, a pointing unit mounted in the case body so that a pointing signal can be generated for controlling the movement of a cursor, a rotatable device for generating a rotational signal, a light source for illuminating the rotatable device, and a control unit for controlling the pointing device. When the computer transmits a state signal to the pointing device, the control unit controls a light source for deciding the illumination mode of the rotatable device according to the state signal.