Two-pin buttons
DCFirst Claim
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1. A method, comprising:
- detecting a presence of a conductive object on a capacitance sensing device, the sensing device comprising at least two sensing areas each coupled to a capacitance measurement input; and
recognizing activation of at least three button performed by the detected presence of the conductive object, wherein the number of buttons is equal to at least the number of sensing areas plus one and wherein a combination of the at least two sensing areas is used to recognize at least one of the activated buttons.
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Abstract
An apparatus and method for detecting a presence of a conductive object on a sensing device, and recognizing three or more button operations performed by the conductive object using two sensing areas of the sensing device. The sensing device may include first, second, and third sensor elements. The third sensor element may include two electrically isolated portions coupled to the first and second sensor elements.
162 Citations
20 Claims
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1. A method, comprising:
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detecting a presence of a conductive object on a capacitance sensing device, the sensing device comprising at least two sensing areas each coupled to a capacitance measurement input; and recognizing activation of at least three button performed by the detected presence of the conductive object, wherein the number of buttons is equal to at least the number of sensing areas plus one and wherein a combination of the at least two sensing areas is used to recognize at least one of the activated buttons. - View Dependent Claims (2, 3, 4)
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5. An apparatus, comprising:
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a sensing device comprising; a first sensor element; a second sensor element; and a third sensor element comprising a first portion coupled to the first sensor element and a second portion coupled to the second sensor element, wherein the first and second portions of the third sensor element are electrically isolated. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An apparatus, comprising:
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a first sensing area configured to detect a presence of a conductive object on a sensing device; a second sensing area configured to detect the presence of the conductive object on the sensing device; and means for recognizing three or more activated buttons performed by the conductive object using the first and second sensing areas on the sensing device. - View Dependent Claims (19, 20)
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Specification