公开(公告)号：US09715301B2

公开(公告)日：2017-07-25

申请号：US14817786

申请日：2015-08-04

Applicant: Apple Inc.

Inventor： Yuta Kuboyama ,  Vikram Garg ,  Richard D. Shuma

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/045

CPC classification number: G06F3/0414 ,  G06F1/163 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/045 ,  G06F3/0488 ,  G06F2203/04102 ,  G06F2203/04105 ,  G06F2203/04108 ,  G06F2203/04113

Abstract: In various implementations, a sensor operates in a force sensing mode by determining an applied force based on a first change in capacitance between first and second electrodes related to compression of a compressible material positioned between while the third electrode functions as a shield and in a proximity sensing mode by sensing proximity of an object based on a second change in capacitance of the third electrode while the first and/or second electrodes function as a shield. In some implementations, a device has a cover glass including a surface having a display area, an edge surface, and a cavity; a touch sensing electrode oriented toward the surface; an electrode positioned in the cavity oriented toward the edge surface; and a processing unit operable to detect touch or proximity of an object to the edge surface based on a change in capacitance between the electrode and the object.