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Foreign object detection

  • US 9,893,549 B2
  • Filed: 10/25/2012
  • Issued: 02/13/2018
  • Est. Priority Date: 10/25/2012
  • Status: Active Grant
First Claim
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1. A method performed by an apparatus, comprising:

  • determining whether an object detected based on at least one capacitance, representative of at least one capacitance representative sensed by at least one capacitance sensing element of said apparatus, corresponds to a predefined type of objects,wherein the apparatus further comprises a wireless charging unit, andwherein the at least one capacitance sensing element is at least partially placed in proximity to the wireless charging unit,wherein said at least one capacitance sensing element represents a plurality of capacitance sensing elements,wherein the apparatus further comprises a touch sensitive interface and the plurality of capacitance sensing elements is part of the touch sensitive interface,wherein said touch sensitive interface comprises a display, andwherein the determining whether the object detected corresponds to the predefined type of objects is performed based on training data in which the display is used in performing a training procedure to learn predefined objects being associated with the predefined type of objects.

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