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Transcapacitive input object sensing

  • US 9,274,659 B2
  • Filed: 09/27/2013
  • Issued: 03/01/2016
  • Est. Priority Date: 09/27/2013
  • Status: Active Grant
First Claim
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1. A method of input object sensing, said method comprising:

  • driving a plurality of transmitter electrodes in a first way to acquire a first sub-frame image with said plurality of transmitter electrodes and a plurality of receiver electrodes of a sensor electrode pattern during a first sub-frame of a transcapacitive sensing frame;

    driving said plurality of transmitter electrodes in a second way to acquire a second sub-frame image with said plurality of transmitter electrodes and said plurality of receiver electrodes during a second sub-frame of said transcapacitive sensing frame, wherein said first way and said second way differ; and

    determining a capacitive image by combining said first sub-frame image with said second sub-frame image such that a motion artifact associated with an input object and present in at least one of said acquired sub-frame images is suppressed by said combining.

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