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Switched-electrode capacitive-measurement device for touch-sensitive and contactless interfaces

  • US 9,250,757 B2
  • Filed: 12/18/2012
  • Issued: 02/02/2016
  • Est. Priority Date: 12/22/2011
  • Status: Active Grant
First Claim
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1. A capacitive measurement device for touch-sensitive and/or contactless interfaces, comprising:

  • at least one capacitive measurement electrode; and

    at least one electrode switch configured to selectively electrically connect said at least one capacitive measurement electrode to means for measuring a capacitive coupling between the at least one capacitive measurement electrode and at least one object of interest, and to a guard potential so that said at least one capacitive measurement electrode is always connected either to said means for measuring the capacitive coupling or to said guard potential,wherein the at least one capacitive measurement electrode and said electrode switch are formed on a single detection surface of a planar electronic component.

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