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CAPACITIVE SENSING WITH COMBINATORIAL SENSOR LAYOUT

  • US 20100295564A1
  • Filed: 05/22/2009
  • Published: 11/25/2010
  • Est. Priority Date: 05/22/2009
  • Status: Active Grant
First Claim
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1. A method for determining capacitance, said method comprising:

  • employing a set of sensor electrodes, said set of sensor electrodes comprising at least three sensor electrodes, wherein a first sensor electrode of said set of sensor electrodes meets a second sensor electrode of said set of sensor electrodes at a first activation region of a plurality of activation regions, wherein said first sensor electrode meets a third sensor electrode of said set of sensor electrodes at a second activation region of said plurality of activation regions, and wherein said second sensor electrode meets said third sensor electrode at a third activation region of said plurality of activation regions;

    transmitting with said third sensor electrode while receiving first indicia with said first and said second sensor electrodes;

    transmitting with said first sensor electrode while receiving second indicia with said second sensor electrode; and

    determining capacitances associated with said first, said second and said third activation regions using at least said first indicia and said second indicia.

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