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：US11614914B2

公开(公告)日：2023-03-28

申请号：US17107220

申请日：2020-11-30

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Han-Ning Chen

IPC: G06F3/16 ,  G06F1/04

Abstract: The present disclosure provides an audio data processing circuit and an audio data processing method. The audio data processing circuit includes a word select interface, a clock signal interface and an audio data interface. The word select interface is configured to receive a word select signal. The clock signal interface is configured to receive a clock signal, and generating an audio data interface signal according to a number of clocks of the clock signal in one period of the word select signal. The audio data interface is configured to transmit the audio data to a processing unit through a first transmission protocol or a second transmission protocol.

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.

公开(公告)号：US20180173329A1

公开(公告)日：2018-06-21

申请号：US15840236

申请日：2017-12-13

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Keng-Nan Chen ,  Chia-Yi Chu ,  Han-Ning Chen ,  Wen-Chi Lin ,  Hui-Chung Chen

IPC: G06F3/038 ,  G06F3/0354 ,  G06F3/041

Abstract: An active stylus pen comprises a touch component and a pressure sensing module. One end of the touch component is disposed at a nib part of the active stylus pen, wherein the touch component is configured to receive an external pressure. The pressure sensing module is connected to the touch component, wherein the pressure sensing module is configured to generate an oscillation signal, wherein the oscillation signal has a first frequency when the touch component receives the external pressure and the external pressure reaches a first threshold value, and wherein the oscillation signal is adjusted to have a second frequency when the touch component receives the external pressure and the external pressure does not reach the first threshold value; wherein a difference of the first frequency and the second frequency is larger than a second threshold value.

公开(公告)号：US20210173611A1

公开(公告)日：2021-06-10

申请号：US17107220

申请日：2020-11-30

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Han-Ning Chen

IPC: G06F3/16 ,  G06F1/04

Abstract: The present disclosure provides an audio data processing circuit and an audio data processing method. The audio data processing circuit includes a word select interface, a clock signal interface and an audio data interface. The word select interface is configured to receive a word select signal. The clock signal interface is configured to receive a clock signal, and generating an audio data interface signal according to a number of clocks of the clock signal in one period of the word select signal. The audio data interface is configured to transmit the audio data to a processing unit through a first transmission protocol or a second transmission protocol.

公开(公告)号：US10817085B2

公开(公告)日：2020-10-27

申请号：US15840236

申请日：2017-12-13

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Keng-Nan Chen ,  Chia-Yi Chu ,  Han-Ning Chen ,  Wen-Chi Lin ,  Hui-Chung Chen

IPC: G06F3/038 ,  G06F3/041 ,  G06F3/0354

Abstract: An active stylus pen comprises a touch component and a pressure sensing module. One end of the touch component is disposed at a nib part of the active stylus pen, wherein the touch component is configured to receive an external pressure. The pressure sensing module is connected to the touch component, wherein the pressure sensing module is configured to generate an oscillation signal, wherein the oscillation signal has a first frequency when the touch component receives the external pressure and the external pressure reaches a first threshold value, and wherein the oscillation signal is adjusted to have a second frequency when the touch component receives the external pressure and the external pressure does not reach the first threshold value; wherein a difference of the first frequency and the second frequency is larger than a second threshold value.

公开(公告)号：US20200293265A1

公开(公告)日：2020-09-17

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 ,  G06F1/06 ,  H04B14/02

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.