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US 7,576,732 B2Granted
Scroll control method using a touchpad
AssigneeElan Microelectronics Corporation
InventorJia-Yih Lii
Life of this patent
Estimating the term…
Abstract
A scroll control method using a touchpad comprises predefining a region on a touchpad, whereby a scroll function will be triggered by a landing of an object on the region, and terminated by a leaving of the object from the touchpad. During the scroll function is executed, the moving distance of the object sliding on the touchpad is calculated to determine a corresponding scrolling signal.
Claims10
A scroll control method using a touchpad, comprising the steps of:
- predefining a region on the touchpad for controlling a scroll function on a window interface, the region being disposed on the touchpad adjacent a second region for cursor control within the window interface;
- detecting a landing of an object on the region;
- triggering the scroll function in response to the landing;
- detecting a movement of the object sliding on the touchpad subsequent to the landing, maintaining the scroll function upon continued sliding of the object into the second region;
- calculating a distance of the movement for determining a scrolling signal responsive thereto;
- and
- terminating the scroll function in response to a leaving of the object from the touchpad.
4 more elements
A touchpad for scroll control on a window, comprising:
- a region predefined thereon for controlling a scroll function on the window, the region being disposed on the touchpad adjacent a second region for cursor control within the window;
- wherein the scroll function is triggered in response to a landing of an object on the region, and a moving distance of the object subsequently sliding on the touchpad is calculated for the touchpad to send out a scrolling signal responsive thereto;
- wherein the scroll function maintained with continued sliding of the object into the second region, and terminated in response to a leaving of the object from the touchpad.
Dependencies are inferred from the claim text.