公开(公告)号：US11036460B2

公开(公告)日：2021-06-15

申请号：US16790740

申请日：2020-02-14

Applicant: Silicon Integrated Systems Corp.

Inventor： Han-Ning Chen ,  Chien-Yu Chiang ,  Wen-Chi Lin

IPC: G06F3/16 ,  H04B14/02 ,  G06F1/06

Abstract: A device for detecting an audio interface includes a processing unit, a first audio interface transmitting circuit, and a second audio interface transmitting circuit. The processing unit is utilized to generate a clock signal and a word select (WS) signal. The first audio interface transmitting circuit is utilized to generate a first audio data according to the clock signal. The second audio interface transmitting circuit is utilized to generate a second audio data according to the clock signal and the WS signal. The processing unit switches to the first audio interface transmitting circuit if a voltage potential of the WS signal remains at a high voltage level or remains at a low voltage level longer than a predetermined period. The processing unit switches to the second audio interface transmitting circuit if the voltage potential of the WS signal changes during the predetermined period.

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.