| 摘要 |
A movement input device for use on a touch screen and a portable electronic device including such a device are described. The movement input device includes a fastening unit securing the movement input device on the portable electronic device, and a user input unit extending through the fastening unit. The user input unit includes a user actuation part protruding from a top side of the fastening unit and actuatable by a user for free angular movement around an axis (X) and a touch screen contact part protruding from a bottom side of the fastening unit, which is arranged to contact the touch screen in a position where at least an angle of the contact position corresponds to an angle of the user actuation part. Movement of the user input unit is thus detected on the touch screen.
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