公开(公告)号：US10996790B2

公开(公告)日：2021-05-04

申请号：US16664974

申请日：2019-10-28

Applicant: Silicon Integrated Systems Corp.

Inventor： Han-Ning Chen ,  Shih-Chan Huang ,  Chien-Yu Chiang ,  Kai-Chun Chuang ,  Chih-Sheng Chou

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0354

Abstract: A touch system includes a touch panel; an active pen configured to generate a signal; and a touch controller electrically connected to the touch panel and configured to detect the signal. When the touch controller supports at least two protocols, a protocol of the touch controller is automatically switched to one of the at least two protocols. The active pen automatically detects the one of the at least two protocols, and a protocol of the active pen is switched to the one of the at least two protocols.