Method for scroll bar control on a touchpad
First Claim
Patent Images
1. A method for scroll bar control on a touchpad, comprising the steps of:
- detecting if a number of fingers touching on the touchpad is equal to or larger than a first threshold, for starting up a scroll bar control function;
selectively redefining the touchpad in operational configuration between alternative cursor control and scroll bar control functions responsive to the detection independent of a sliding movement of said number of fingers;
in the scroll bar control function, detecting the sliding movement of said number of fingers on the touchpad for scrolling on a window in accordance with the finger movement, selectively setting a scroll direction based on comparative vertical and horizontal distances of the finger movement; and
continuing said scroll bar control function to scroll in further distance-based response to at least one finger remaining continuously on said touchpad when said number of fingers remaining continuously on said touchpad is greater than a second threshold;
wherein said first threshold is larger than one and said second threshold.
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Abstract
In a method for scroll bar control on a touchpad, the fingers touching on the touchpad are detected to start up and terminate a scroll bar control function. In the scroll bar control function, the movement of the finger or fingers touching on the touchpad is detected for scrolling on a window, and the vertical distance and the horizontal distance of the movement are evaluated for determining the scrolling amount of a vertical scroll bar or a horizontal scroll bar of the window.
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Citations
18 Claims
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1. A method for scroll bar control on a touchpad, comprising the steps of:
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detecting if a number of fingers touching on the touchpad is equal to or larger than a first threshold, for starting up a scroll bar control function; selectively redefining the touchpad in operational configuration between alternative cursor control and scroll bar control functions responsive to the detection independent of a sliding movement of said number of fingers; in the scroll bar control function, detecting the sliding movement of said number of fingers on the touchpad for scrolling on a window in accordance with the finger movement, selectively setting a scroll direction based on comparative vertical and horizontal distances of the finger movement; and continuing said scroll bar control function to scroll in further distance-based response to at least one finger remaining continuously on said touchpad when said number of fingers remaining continuously on said touchpad is greater than a second threshold; wherein said first threshold is larger than one and said second threshold. - View Dependent Claims (2, 3, 4, 5)
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6. A method for scroll bar control on a touchpad comprising the steps of:
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detecting if a number of fingers touching on a region of the touchpad is equal to or larger than a first threshold, for starting up a scroll bar control function; selectively redefining the touchpad in operational configuration between alternative cursor control and scroll bar control functions responsive to the detection independent of a sliding movement of said number of fingers; in the scroll bar control function, detecting the sliding movement of one or more fingers on the touchpad for scrolling on a window in accordance with the finger movement; and
,selectively setting a scroll direction based on comparative vertical and horizontal distances of the movement for scrolling a vertical scroll bar on the window if the vertical distance is larger than the horizontal distance over a reference, or a horizontal scroll bar on the window if the horizontal distance is larger than the vertical distance over the reference; and continuing said scroll bar control function to scroll in further distance-based response to at least one finger remaining continuously on said touchpad when said number of fingers remaining continuously on said touchpad is greater than a second threshold; wherein said first threshold is larger than one and said second threshold. - View Dependent Claims (7, 8, 9, 10)
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11. A method for scrolling a window on a touchpad, comprising the steps of:
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detecting a number of fingers touching on the touchpad for starting up a scrolling window configuration and selectively reconfiguring the touchpad between a cursor control window configuration and the scrolling window configuration responsive to the number of fingers meeting a first threshold independent of a sliding movement of said number of fingers; in the scrolling window configuration, selectively setting a scroll direction based on comparative evaluation of vertical and horizontal distances of a continuous movement of one or more fingers sliding on the touchpad for a vertical scrolling, a horizontal scrolling, or a combined vertical and horizontal scrolling; continuing said scrolling in the scrolling window configuration in further distance-based response to at least one finger remaining continuously on said touchpad; and transmitting a scrolling amount to a host system a selected one of the vertical, horizontal, or combined vertical and horizontal scrolling directions; wherein said first threshold is larger than one. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification