Distinguishing gestures from handwriting in a pen based computer by size discrimination
AssigneeInternational Business Machines Corporation
InventorsJohn Mark Zetts, Maurice Roger Desrosiers
Life of this patent
Estimating the term…
Abstract
To distinguish between gestures and handwriting, the pen subsystem examines the size of the user's writing. The user may set the gesture versus text size according to his/her handwriting style. In this manner, the user knows exactly how large to make the gestures. If the user declines to customize the setting, the pen subsystem can query other user settings that indicate approximate size of the user's handwriting. A third choice available the system dynamically determine and track the size of handwriting. This would allow multiple users to serially use the computer without having to change settings.
Claims30
A method for distinguishing between gesture and handwriting input in a pen based computer, comprising the steps of:
- detecting a set of strokes from a pen input device to the computer;
- calculating a size of each of the strokes;
- categorizing the set of strokes as gesture input if a predetermined number of the strokes exceeds a gesture threshold size;
- and
- categorizing the set of strokes as handwriting input if the predetermined number of strokes does not exceed the gesture threshold size.
A system including processor, memory, display and pen input device for distinguishing between gesture and handwriting input further comprising:
- means for detecting a set of strokes from a pen input device to the computer;
- means for calculating a size of each of the strokes;
- means for categorizing the set of strokes as gesture input if a predetermined number of the strokes exceeds a gesture threshold size;
- and
- means for categorizing the set of strokes as handwriting input if the predetermined number of the strokes does not exceed the gesture threshold size.
A computer program product in a computer readable medium for distinguishing between gesture and handwriting input to a computer further comprising:
- means for detecting a set of strokes from a pen input device to the computer;
- means for calculating a size of each of the strokes;
- means for categorizing the set of strokes as gesture input if a predetermined number of the strokes exceeds a gesture threshold size;
- and
- means for categorizing the set of strokes as handwriting input if the predetermined number of the strokes does not exceed the gesture threshold size.
Dependencies are inferred from the claim text.