Using Capacitive Images for Touch Type Classification
First Claim
Patent Images
1. A method of interaction between a user and an electronic device having a touch-sensitive surface, the method comprising:
- accessing a capacitive image comprising capacitive image data corresponding to capacitances at a plurality of locations on the touch-sensitive surface, the capacitances varying in response to a physical touch on the touch-sensitive surface;
processing the capacitive image data; and
determining a touch type for the physical touch based on the processed capacitive image data.
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Abstract
An electronic device includes a touch-sensitive surface, for example a touch pad or touch screen. The user physically interacts with the touch-sensitive surface, producing touch events. The resulting interface actions taken depend at least in part on the touch type. The type of touch is determined in part based on capacitive image data produced by the touch event.
54 Citations
25 Claims
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1. A method of interaction between a user and an electronic device having a touch-sensitive surface, the method comprising:
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accessing a capacitive image comprising capacitive image data corresponding to capacitances at a plurality of locations on the touch-sensitive surface, the capacitances varying in response to a physical touch on the touch-sensitive surface; processing the capacitive image data; and determining a touch type for the physical touch based on the processed capacitive image data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A machine-readable tangible storage medium having stored thereon data representing sequences of instructions, which when executed by an electronic device having a touch-sensitive surface, cause the electronic device to perform a method comprising the steps of:
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accessing a capacitive image comprising capacitive image data corresponding to capacitances at a plurality of locations on the touch-sensitive surface, the capacitances varying in response to a physical touch on the touch-sensitive surface; processing the capacitive image data; and determining a touch type for the physical touch based on the processed capacitive image data.
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25. An electronic device comprising:
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a touch-sensitive surface; means for accessing a capacitive image comprising capacitive image data corresponding to capacitances at a plurality of locations on the touch-sensitive surface, the capacitances varying in response to a physical touch on the touch-sensitive surface; means for processing the capacitive image data; and means for determining a touch type for the physical touch based on the processed capacitive image data.
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Specification