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US 2010/0073318 A1Published application
Multi-touch surface providing detection and tracking of multiple touch points
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsNan Hu, David Kryze, Luca Rigazio, Rabindra Pathak
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Abstract
System and method for touch sensitive surface provide detection and tracking of multiple touch points on the surface by using two independent arrays of orthogonal linear capacitive sensors.
Claims15
An apparatus detecting at least one touch point comprising:
- a surface having a first dimension and second dimension;
- a first plurality of sensors deployed along the first dimension and generating a first plurality of sensed signals caused by the at least one touch point, wherein the first plurality of sensors provide a first dataset indicating the first plurality of sensed signals as a first function of position on the first dimension;
- a second plurality of sensors deployed along the second dimension and generating a second plurality of sensed signals caused by the at least one touch point, wherein the second plurality of sensors provide a second dataset indicating the second plurality of sensed signals as a second function of position on the second dimension, wherein the first plurality of sensors and the second plurality of sensors operate independently to each other;
- and
- a trained-model based processing unit processing the first and second datasets to determine a position for each of the at least one touch point.
2 more elements
A method comprising:
- detecting a first dataset indicating a first plurality of sensed signals as a first function of position on a first dimension of a touch surface;
- detecting a second dataset indicating a second plurality of sensed signals as a second function of position on a second dimension of the touch surface;
- and
- processing the first and second datasets to determine a position for each of at least one touch point on the surface by using a trained-model.
1 more element
Dependencies are inferred from the claim text.