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Sensor patterns with reduced noise coupling

  • US 9,632,629 B2
  • Filed: 09/29/2011
  • Issued: 04/25/2017
  • Est. Priority Date: 09/29/2011
  • Status: Active Grant
First Claim
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1. A capacitive sense array, comprising:

  • a first set of sense elements disposed in straight parallel paths along a first axis of the capacitive sense array; and

    a second set of sense elements disposed in crooked paths along a second axis of the capacitive sense array and arranged in columns along the second axis, the second set of sense elements comprising a plurality of subsets, wherein each subset of the plurality of subsets is disposed in a distinct one of the crooked paths, wherein each subset of the plurality of subsets is connected to a distinct one of a plurality of conductive traces of the capacitive sense array, wherein within each subset of the plurality of subsets, each sense element of the subset is connected to the same distinct one of the plurality of conductive traces, wherein for each subset of the plurality of subsets, a plurality of sense elements of the subset is aligned in different columns, and wherein a column of the columns includes sense elements from two or more subsets of the plurality of subsets;

    wherein the capacitive sense array is coupled to a processing device configured to measure capacitances associated with the first set of sense elements and the second set of sense elements.

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