Method, Device and Terminal Apparatus For Processing Capacitance of Respective Layers of Multi-Touch Panel
First Claim
1. A device for processing capacitance of respective layers of a multi-touch panel, comprising:
- a plurality of capacitance processing units, each of which being coupled with a plurality of sensors of a respective layer of the multi-touch panel such that each of the capacitance processing unit scans to capture capacitance values detected by the respective sensors of the corresponding layer when the multi-touch panel is touched at multiple positions, and then processes the captured capacitance values;
a plurality of capacitance converting units, each of which being correspondingly coupled with one of the capacitance processing units for converting the capacitance values processed by the capacitance processing unit into respective digital capacitance parameter outputs; and
an analyzing and processing unit for analyzing and processing the digital capacitance parameter outputs in order to determine multiple touch positions on the multi-touch panel.
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Accused Products
Abstract
A device and a terminal apparatus for processing capacitance of respective layers of a multi-touch panel in the field of multi-touch panels. The method includes scanning to capture capacitance values detected by respective sensors of each layer of the multi-touch panel when the multi-touch panel is touched at multiple positions, and processing the captured capacitance values; converting the processed capacitance values into respective digital capacitance parameters; processing the respective digital capacitance parameters. The invention has the advantageous effect that the capacitance of each layer of the multi-touch panel could be detected and controlled such that the capacitance of each layer falls within a consolidated and controllable range, thereby ensuring an accurate and reliable positioning of multiple simultaneous finger touch on the panel.
3 Citations
10 Claims
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1. A device for processing capacitance of respective layers of a multi-touch panel, comprising:
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a plurality of capacitance processing units, each of which being coupled with a plurality of sensors of a respective layer of the multi-touch panel such that each of the capacitance processing unit scans to capture capacitance values detected by the respective sensors of the corresponding layer when the multi-touch panel is touched at multiple positions, and then processes the captured capacitance values; a plurality of capacitance converting units, each of which being correspondingly coupled with one of the capacitance processing units for converting the capacitance values processed by the capacitance processing unit into respective digital capacitance parameter outputs; and an analyzing and processing unit for analyzing and processing the digital capacitance parameter outputs in order to determine multiple touch positions on the multi-touch panel. - View Dependent Claims (2, 3, 4)
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5. A terminal apparatus, comprising:
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a multi-touch panel on which multiple touch positions are detected; a device for processing capacitance of respective layers of the multi-touch panel comprising; a plurality of capacitance processing units, each of which being coupled with a plurality of sensors of a respective layer of the multi-touch panel such that each of the capacitance processing unit scans to capture capacitance values detected by the respective sensors of the corresponding layer when the multi-touch panel is touched at multiple positions, and then processes the captured capacitance values; a plurality of capacitance converting units, each of which being correspondingly coupled with one of the capacitance processing units for converting the capacitance values processed by the capacitance processing unit into respective digital capacitance parameter outputs; and an analyzing and processing unit for determining multiple touch positions on the multi-touch panel as a result of analyzing and processing the digital capacitance parameter outputs. - View Dependent Claims (6, 7)
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8. A method for processing capacitance of respective layers of a multi-touch panel, the method comprising:
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scanning to capture capacitance values detected by respective sensors of each layer of the multi-touch panel when the multi-touch panel is touched at multiple positions, and processing the captured capacitance values; converting the processed capacitance values into respective digital capacitance parameters which are then analyzed and processed to determine the multiple touch positions on the multi-touch panel. - View Dependent Claims (9, 10)
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Specification