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

摘要

The present invention relates to a capacitive-measurement device for touch-sensitive and/or contactless interfaces, including at least one capacitive-measurement electrode and electrode-switching unit capable of electrically connecting the at least one electrode, either to a capacitive-measurement unit or to a guard potential, the at least one capacitive-measurement electrode and the electrode-switching unit being provided on a single detection surface according to a technique for manufacturing planar electronic components. The invention also relates to an apparatus implementing the device.

主权项

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.