Patent attributes
An electronic device includes a rod, a first sleeve, and a second sleeve. The rod has a first portion and a second portion. The first portion includes a touch head. The first sleeve is slidably sleeved on the first portion of the rod, and is movable between a first position and a second position of the first portion. When the first sleeve is at the first position, the electronic device is adapted to serve as a roller-type input device. A function of the roller-type input device is controlled according to information of the first sleeve or the second sleeve rotating relative to the rod. When the first sleeve is at the second position, the touch head is exposed from the first sleeve and enabled, so that the electronic device is adapted to serve as a stylus. In addition, an electronic system with the electronic device is also mentioned.
