| 摘要 |
A cursor control device is disclosed to include a hollow elongated circuit module holder (1) having a top opening (121), a sleeve (3) sleeved onto the circuit module holder (1) and movable leftwards and rightwards and rotatable forwards and backwards relative to the circuit module (2) without friction and a circuit module (2) accommodated in the circuit module holder (1) and adapted for sensing the direction and amount of movement of the sleeve (3) relative to the circuit module holder (1) and producing a signal indicative of the direction and amount of movement of the sleeve (3) relative to the circuit module holder (1) for controlling a cursor on a display screen of an electronic device. |
