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：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：US09262026B2

公开(公告)日：2016-02-16

申请号：US14213250

申请日：2014-03-14

Applicant: SILICON INTEGRATED SYSTEMS CORP

Inventor： Jih-Ming Hsu ,  Chia-Yi Chu ,  Chin-Hua Kuo

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A capacitive touch device and a sensing method thereof are disclosed. The capacitive touch device includes a touch panel, at least one touch detection unit and a processing unit. The touch detection unit scans the touch panel, obtains an N-bit sensed data and compresses the N-bit sensed data to an L-bit sensed data. The processing unit receives the L-bit sensed data, decompresses the L-bit sensed data to the N-bit sensed data and calculates a coordinate of a touch according to the N-bit sensed data. The present invention is capable of decreasing the time for transmitting the sensed data, the power consumption and the requirements for the memory capacity of the touch detection unit and the memory capacity of the processing unit.

Abstract translation: 公开了电容式触摸装置及其感测方法。 电容式触摸装置包括触摸面板，至少一个触摸检测单元和处理单元。 触摸检测单元扫描触摸面板，获得N位感测数据，并将N位感测数据压缩为L位感测数据。 处理单元接收L位检测数据，将L位检测数据解压缩为N位检测数据，并根据N位检测数据计算触摸坐标。 本发明能够减少发送感测数据的时间，功耗以及触摸检测单元的存储容量的要求和处理单元的存储容量。

公开(公告)号：US09218097B2

公开(公告)日：2015-12-22

申请号：US14068589

申请日：2013-10-31

Applicant: SILICON INTEGRATED SYSTEMS CORP

Inventor： Jih-Ming Hsu ,  Chia-Yi Chu

IPC: G06F3/045 ,  G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A capacitive touch device and a sensing method thereof are disclosed. The capacitive touch device includes a touch panel and a plurality of touch detection units. The touch panel includes first sensing lines and second sensing lines. The position of a touch between a last one of the first sensing lines and a first one of the second sensing lines is calculated according to sensed values respectively corresponding to a first sensing line prior to the last one of the first sensing lines, the last one of the first sensing lines and the first one of the second sensing lines. The present invention is capable of avoiding the problem that the frame rate is reduced significantly because of the data transmission between the first and second touch detection units.

Abstract translation: 公开了电容式触摸装置及其感测方法。 电容式触摸装置包括触摸面板和多个触摸检测单元。 触摸面板包括第一感测线和第二感测线。 根据分别对应于第一感测线中的最后一个感测线之前的第一感测线的感测值来计算第一感测线中的最后一条感测线和第一感测线中的最后一条感测线之间的触摸位置， 的第一感测线和第一感测线中的第一个。 本发明能够避免由于第一和第二触摸检测单元之间的数据传输而使帧速率显着降低的问题。

公开(公告)号：US11054933B2

公开(公告)日：2021-07-06

申请号：US16198145

申请日：2018-11-21

Applicant: Silicon Integrated Systems Corp.

Inventor： Ching-Lin Jen ,  Ssu-Che Yang ,  Chia-Yi Chu ,  Chung-Lin Chiang ,  Yao-Jui Chang ,  Keng-Nan Chen

IPC: G06F3/041 ,  G06F3/044

Abstract: A circuit for touch sensing includes a driving unit, a self-capacitive sensor circuit, a mutual-capacitive sensor circuit and a control circuit. The driving is configured to generate a driving signal. The self-capacitive sensor circuit is configured to generate a self-capacitance sensing result. The mutual-capacitive sensor circuit is configured to receive the driving signal in order to generate a mutual-capacitance sensing result when the voltage of a node between the self-capacitive sensor circuit and the mutual-capacitive sensor circuit reaches a reference voltage. The control circuit receives and computes the self-capacitance sensing result and the mutual-capacitance sensing result in order to generate a sensing result. By utilizing the circuit for touch sensing of present disclosure, the accuracy and the efficiency of touch sensing can be enhanced.