METHOD AND DEVICE FOR CAPACITIVE SENSING
First Claim
1. A capacitive sensing method, comprising:
- sensing signals or signal changes of a plurality of intersecting points on a touch panel through mutual capacitance of the touch panel, wherein the touch panel includes intersecting points formed from a plurality of perpendicular conductive lines and a plurality of electrical conductors respectively crossing or surrounding the intersecting points, wherein a predetermined range is determined based on the electrical conductors;
identifying the location of an object touching or getting near the touch panel based on the signals or signal changes of the intersecting points that fall within the predetermined range; and
continuously identifying the locations of the object to determine whether it is a command gesture.
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Accused Products
Abstract
This invention discloses a capacitive sensing device. The device includes a plurality of first conductive lines electrically isolated from each other; a plurality of second conductive lines electrically isolated from each other and electrically isolated from and stacked with the first conductive lines to form a plurality of intersecting points; and a plurality of electrical conductors electrically isolated from each other and correspondingly crossing the first and the second conductive lines and being around the intersecting points, wherein the first and second conductive lines and the electrical conductors are electrically isolated from each other. By doing so, when an electrical signal is driven to any first conductive lines, the first conductive lines is capacitively coupled to the second conductive lines with which it intersects, and the electrical conductors crossing the first conductive lines are respectively capacitively coupled to the first conductive lines and the second conductive lines which intersect with the first conductive lines to provide a higher compound capacitance.
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Citations
25 Claims
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1. A capacitive sensing method, comprising:
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sensing signals or signal changes of a plurality of intersecting points on a touch panel through mutual capacitance of the touch panel, wherein the touch panel includes intersecting points formed from a plurality of perpendicular conductive lines and a plurality of electrical conductors respectively crossing or surrounding the intersecting points, wherein a predetermined range is determined based on the electrical conductors; identifying the location of an object touching or getting near the touch panel based on the signals or signal changes of the intersecting points that fall within the predetermined range; and continuously identifying the locations of the object to determine whether it is a command gesture. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A capacitive sensing method, comprising:
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sensing signals or signal changes of a plurality of intersecting points on a touch panel through mutual capacitance of the touch panel to form an image, wherein the touch panel includes intersecting points formed from a plurality of perpendicular conductive lines and a plurality of electrical conductors respectively crossing or surrounding the intersecting points, wherein a predetermined range is determined based on the electrical conductors; identifying the location of an object touching or getting near the touch panel based on the signals or signal changes of the intersecting points that fall within the predetermined range in the image; and continuously identifying the locations of the object to determine whether it is a command gesture. - View Dependent Claims (8, 9, 10)
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11. A capacitive sensing device, comprising:
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a touch panel including intersecting points formed from a plurality of perpendicular conductive lines, and a plurality of electrical conductors respectively crossing or surrounding the intersecting points, wherein a predetermined range is determined based on the electrical conductors; a sensing unit for sensing signals or signal changes of the intersecting points through mutual capacitances of the intersecting points, and identifying the location of an object touching or getting near the touch panel based on the signals or signal changes of the intersecting points that fall within the predetermined range; and an identifying unit for continuously identifying the locations of the object to determine whether it is a command gesture. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A capacitive sensing device, comprising:
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a touch panel including intersecting points formed from a plurality of perpendicular conductive lines, and a plurality of electrical conductors respectively crossing or surrounding the intersecting points, wherein a predetermined range is determined based on the electrical conductors; a sensing unit for sensing signals or signal changes of the intersecting points through mutual capacitances of the intersecting points, and forming an image based on the signals or signal changes of intersecting points that fall within the predetermined range; and an identifying unit for identifying the trajectory of the object touching or getting near the touch panel based on a plurality of images, and determining whether the object trajectory is a command gesture. - View Dependent Claims (19, 20, 21)
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22. A capacitive sensing device, comprising:
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a touch panel including intersecting points formed from a plurality of perpendicular conductive lines, and a plurality of electrical conductors respectively crossing or surrounding the intersecting points, wherein a predetermined range is determined based on the electrical conductors; a sensing unit for sensing an image formed from signals or signal changes of the intersecting points through mutual capacitances of the intersecting points; and an identifying unit for identifying the trajectory of the object touching or getting near the touch panel based on intersecting points that fall within the predetermined range in a plurality of images, and determining whether the object trajectory is a command gesture. - View Dependent Claims (23, 24, 25)
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Specification