公开(公告)号：US10359884B2

公开(公告)日：2019-07-23

申请号：US15470690

申请日：2017-03-27

Applicant: Apple Inc.

Inventor： Steven P. Hotelling ,  David Amm ,  Michael Lammers ,  John T. Orchard ,  Brian Michael King ,  Omar S. Leung ,  Deniz Teoman

IPC: G06F3/041 ,  G06F3/044

Abstract: Ground detection of a touch sensitive device is disclosed. The device can detect its grounded state so that poor grounding can be selectively compensated for in touch signals outputted by the device. The device can include one or more components to monitor certain conditions of the device. The device can analyze the monitored conditions to determine the grounding condition of the device. The device can apply a function to compensate its touch signal outputs if the device determines that it is poorly grounded. Conversely, the device can omit the function if the device determines that it is well grounded.