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SMART SCANNING FOR A CAPACITIVE SENSE ARRAY

  • US 20120050216A1
  • Filed: 02/25/2011
  • Published: 03/01/2012
  • Est. Priority Date: 08/24/2010
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • scanning, by a processing device, a plurality of scan groups in a capacitive sense array to generate signals corresponding to a mutual capacitance at sense elements of the capacitive sense array, wherein each of the plurality of scan groups comprises a plurality of sense elements;

    identifying a scan group where the generated signal is affected by a presence of a conductive object; and

    individually scanning the plurality of sense elements in the identified scan group to determine a location of the conductive object.

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