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Method and device for position detection

  • US 8,970,552 B2
  • Filed: 09/23/2013
  • Issued: 03/03/2015
  • Est. Priority Date: 10/09/2009
  • Status: Active Grant
First Claim
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1. A method for position detection, comprising:

  • providing a sensing device including a plurality of sensors including a plurality of first sensors and a plurality of second sensors, these first and second sensors intersecting each other at a plurality of intersecting points;

    determining at least one first 1-D position corresponding to at least one external touch based on signals of these first sensors by self-capacitance detection, wherein each first 1-D position is determined based on a dual-differential sensing information whose each value is based on signals of these sensors by self-capacitance direction; and

    determining at least one second 1-D position corresponding to the at least one first 1-D position based on signals of these second sensors by mutual-capacitance detection.

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