公开(公告)号：US11026026B2

公开(公告)日：2021-06-01

申请号：US15826484

申请日：2017-11-29

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Ssu-Che Yang ,  Wen-Chi Lin ,  Keng-Nan Chen

IPC: H04R3/00 ,  H04R19/00 ,  H04R19/04

Abstract: A sensing device comprises a charge pump, a MEMS sensor, a source follower and a PGA. The charge pump is configured to provide a pump voltage. The MEMS sensor is electrically connected to the charge pump and configured to generate an input voltage according to environment variations. The source follower is electrically connected to the MEMS sensor and configured to generate a followed reference voltage according to the pump voltage and to generate a followed input voltage according to the input voltage. The PGA has an input end of the PGA electrically connected to the source follower and is configured to generate two-ended differential output voltages outputted through a first output end and a second output end according to a difference between the followed reference voltage and the followed input voltage.

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：US10795481B2

公开(公告)日：2020-10-06

申请号：US16382702

申请日：2019-04-12

Applicant: Silicon Integrated Systems Corp

Inventor： Tsung-Hua Tsai ,  Ying-Jyh Yeh

IPC: G06F3/041 ,  G06F3/01 ,  G06F3/0488 ,  G06N3/02

Abstract: A method for identifying tap events on a touch panel includes measuring vibration signals for tap events on the touch panel to collect the tap events and record types of the tap events as samples; generating a sample set including a plurality of samples; using the sample set to train a deep neural network to determine an optimized weighting parameter group; taking the deep neural network and the optimized weighting parameter group as a tapping classifier and deploying it to a touch-controlled end product; and obtaining a predicted tap type based on a vibration signal and an image formed by touch sensing values detected by the touch-controlled end product to which a tap operation is performed. The present disclosure also provides a system corresponding to the identifying method, and a touch-controlled end product.

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.

公开(公告)号：US20190356272A1

公开(公告)日：2019-11-21

申请号：US16416230

申请日：2019-05-19

Applicant: Silicon Integrated Systems Corp.

Inventor： Ssu-Che YANG ,  Wen-Chi LIN ,  Keng-Nan CHEN

IPC: H03F1/02

Abstract: A configurable amplifier module is disclosed. The configurable amplifier module includes a first amplifier having a non-inverting input, an inverting input, and a first output; a second amplifier having a non-inverting input, an inverting input, and a second output; a first resistor; a second resistor; a third resistor; a detecting unit connected to the second output of the second amplifier and configured to detect whether a current flows through the detecting unit; and a control unit connected to the second resistor and the detecting unit and configured to control the second resistor to be connected to the third resistor or a direct current signal.

公开(公告)号：US20190155441A1

公开(公告)日：2019-05-23

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.

公开(公告)号：US10273151B2

公开(公告)日：2019-04-30

申请号：US15828044

申请日：2017-11-30

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Wen-Chi Lin ,  Ssu-Che Yang ,  Keng-Nan Chen

IPC: B81B7/00 ,  B81B7/02 ,  B81C1/00 ,  G05F3/02 ,  H02M3/07 ,  H03H9/10 ,  G06G7/184 ,  G01N27/414 ,  G01P15/125

Abstract: A sensing device includes a MEMS sensor and an adjustable amplifier. The MEMS sensor is configured to generate an input signal according to environmental changes. The adjustable amplifier has a first input terminal, a second input terminal, a third input terminal, a fourth input terminal and a first output terminal. The first input terminal is electrically connected to the MEMS sensor for receiving the input signal. The second input terminal is electrically connected to a first signal terminal for receiving a first common-mode signal. The third input terminal is electrically connected to the first output terminal. The fourth input terminal is electrically connected to a second signal terminal. An electric potential of a first output signal output by the first output terminal of the adjustable amplifier is related to electric potentials of the input signal, the first signal terminal and the second signal terminal.

公开(公告)号：US20190050081A1

公开(公告)日：2019-02-14

申请号：US16101548

申请日：2018-08-13

Applicant: Silicon Integrated Systems Corp.

Inventor： HSIN-HSUAN YU ,  JIUN-YING YEH ,  CHIN-HUA KUO ,  YING-JYH YEH

IPC: G06F3/044 ,  G06F3/047 ,  G06F3/0354 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/03545 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/047 ,  G06F2203/04112

Abstract: A capacitive touch system and a sensing method thereof are disclosed. The capacitive touch system includes a touch panel including a plurality of driving electrodes and a plurality of sensing electrodes; a touch control chip; and an external device configured to transmit data to the touch control chip. In a position detection mode, the touch control chip drives the driving electrodes, reads a sensing signal from the sensing electrodes, and determines a position of a touch according to the sensing signal. In a data receiving mode, the touch control chip receives the data transmitted by the external device after a time delay period. In the capacitive touch system and the sensing method thereof, the position detection mode and the data receiving mode can be sequentially performed by delaying the time period.

公开(公告)号：US10205387B2

公开(公告)日：2019-02-12

申请号：US15838181

申请日：2017-12-11

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Wen-Chi Lin ,  Cheng-Ta Wu ,  Keng-Nan Chen

IPC: H02M3/07

Abstract: A charge pump circuit includes N boosting circuits, (N−2) switching circuits and a control circuit. A kth boosting circuit includes a unidirectional component and a capacitor. A positive terminal of the unidirectional component of the kth boosting circuit is electrically connected to a negative terminal of a unidirectional component of a (k−1)th boosting circuit. A first terminal of the capacitor of the kth boosting circuit is electrically connected to a negative terminal of the unidirectional component of the kth boosting circuit. A (2i−1)th switching circuit selectively conducts a current path from a (2i−1)th boosting circuit to a first clock terminal or to a ground terminal according to a control signal of the control circuit. A (2i)th switching circuit selectively conducts a current path from a (2i)th boosting circuit to a second clock terminal or to the ground terminal according to the control signal of the control circuit.

公开(公告)号：US20190018520A1

公开(公告)日：2019-01-17

申请号：US16037433

申请日：2018-07-17

Applicant: Silicon Integrated Systems Corp

Inventor： Chin-Hua KUO ,  Hsin-Hsuan YU ,  Jiun-Ying YEH ,  Ying-Jyh YEH

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

CPC classification number: G06F3/044 ,  G06F3/03545 ,  G06F3/0414 ,  G06F3/0416

Abstract: A capacitive touch system and a sensing method thereof are disclosed. The capacitive touch system includes a touch panel; a touch control chip; and an active pen which includes a receiving part, a transmitting part, a control unit, and a pressure sensing element. The control unit controls the transmitting unit to output a pen driving signal according to a pen sensing signal. The pressure sensing element detects a pen pressure signal. The control unit outputs a voltage signal in responsive to the pen pressure signal after a time delay period. In the capacitive touch system and the sensing method thereof, the active pan is not required to be paired with the touch panel.