Uniformity correction method for low cost and non-rectangular touch sensor matrices
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United States of America Patent
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Mar 6, 2018
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app pub date -
Sep 20, 2017
filing date -
Dec 14, 2016
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Abstract
A correction matrix for use with non-rectangular touch arrays is described. In one embodiment, a sensing device may include a memory and a processing element coupled to the memory. The memory may store a set of touch sense values corresponding to a measured characteristic of at least one unit cell of plurality of unit cells of a non-rectangular touch array and may store a correction matrix. The correction matrix may define an active region and an inactive region of the non-rectangular touch array. The processing element may modify touch sense values of a subset of the plurality of unit cells that are not completely within the active region defined by correction values of the correction matrix.
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