Patent ID: 9141240
Filing Date: 2015-09-22
Classification: G01D,G01R,G06F

Abstract:
1. An apparatus comprising: capacitive sensors located in a viewable area of the apparatus, where the capacitive sensors are arrange in a first layer and a second layer, where the first layer is located on top of the second layer, where the capacitive sensors in the first layer are arranged in a substantially ring-shaped pattern, where the capacitive sensors in the first layer comprise a plurality of pairs of the capacitive sensors, where both capacitive sensors of each pair are aligned with other ones of the pairs in a common column or row, and where both capacitive sensors of each pair has an end which is outside the viewable area such that no leads from the capacitive sensors of each pair are in the viewable area; and a cover window on top of the first layer, where the cover window does not comprise electrically conductive material.