公开(公告)号：US20170293372A1

公开(公告)日：2017-10-12

申请号：US15485698

申请日：2017-04-12

Applicant: Apple Inc.

Inventor： Leah GUM ,  Wayne C. WESTERMAN ,  Seyed Mohammad NAVIDPOUR ,  Shahrooz SHAHPARNIA

IPC: G06F3/0354 ,  G06F3/038 ,  G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0418 ,  G06F2203/04104

Abstract: In one aspect, the present disclosure relates to a method including determining which sense lines are potentially corrupted based on touch image information, measuring a sense signal on each sense line, and applying a trained best compensation factor to the measured sense signal on potentially corrupted sense lines in order to produce a corrected sense signal. The corrected sense signal eliminates active stylus signal that has cross-coupled to a touch contact (e.g., a finger or conductive stylus) and thereby mitigates errors in stylus location due to cross-coupled signal.