Patent ID: 7623116

Claim:
A roller device comprising: a roller wheel configured to control scrolling of a graphical object displayed on a monitor along a first axis if the roller wheel is rotated by a user; a first sensor adjacent to a first side of the roller wheel; and a second sensor adjacent to a second side of the roller wheel; wherein: the roller wheel is configured to be tilted toward the first side to activate the first sensor, the roller wheel is configured to be tilted toward the second side to activate the second sensor, wherein tilting directions of the rolling wheel to the first side and the second side are perpendicular to a rotation direction of the roller wheel being rotated, the roller wheel is configured to be pressed downward to activate the first sensor and the second sensor, if the first or second sensor is activated, the first and second sensors are configured to control a scrolling rate of the graphical object along a second axis, and if the first and second sensors are activated, the first and second sensors are configured to change a control characteristic of the roller device being rotated from a first characteristic to a second characteristic, and the first control characteristic of the roller device being rotated is for cursor control and the second control characteristic of the roller device being rotated is for scrolling control.