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US 10,379,638 B2Granted
Method of determining adaptive DPI curve
AssigneePixart Imaging Inc.
InventorsChi-Chieh Liao, Han-Shu Lin, Tse-Chung Su
Life of this patent
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Abstract
A method of determining an adaptive DPI curve includes the steps of: detecting, by a sensing element, an object on a touch surface and outputting a detected frame; calculating, by a processing unit, a contact range according to the detected frame; and determining a DPI curve according to the contact range.
Claims7
A method of determining an adaptive dots per inch (DPI) function, the method comprising:
- detecting, by a sensing element, a first object in contact with a touch surface at a first time, and outputting first detected data;
- calculating, by a processing unit, a first contact range corresponding to the first object on the touch surface according to the first detected data;
- detecting, by the sensing element, a second object in contact with the touch surface at a second time, and outputting second detected data;
- calculating, by the processing unit, a second contact range corresponding to the second object on the touch surface according to the second detected data;
- and
- determining a DPI function according to a variation between the calculated second contact range of the second object and the calculated first contact range of the first object on the touch surface.
3 more elements
Dependencies are inferred from the claim text.