公开(公告)号：US20240329829A1

公开(公告)日：2024-10-03

申请号：US18608357

申请日：2024-03-18

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Ying-hu YEN

IPC: G06F3/04883 ,  G06F3/0354 ,  G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04883 ,  G06F3/03545 ,  G06F3/03547 ,  G06F3/04162 ,  G06F3/0441

Abstract: A writing identification system includes a touch control panel, an identification device, and a pairing device. The identification device includes a housing assembly detachably attached to a writing instrument. A trigger sensor is disposed in a first cover of the housing assembly for sensing displacement of the writing instrument. A wireless transmission module is disposed in the first cover. When the trigger sensor senses the displacement and a writing head of the writing instrument contacts a writing board, the wireless transmission module transmits a first identification signal. A power module is disposed in the housing assembly. The pairing device is configured to receive the first identification signal and a handwriting touch signal to generate a first pairing signal and transmit the first pairing signal to a user device.

公开(公告)号：US20230176664A1

公开(公告)日：2023-06-08

申请号：US18075137

申请日：2022-12-05

Applicant: Silicon Integrated Systems Corp.

Inventor： Min-han LEE

IPC: G06F3/0354

CPC classification number: G06F3/03545 ,  G06F3/03547

Abstract: A stylus and a touch interactive device is provided. The stylus includes a pen holder, a cover plate, and a circuit control assembly. The pen holder includes a pen head, a pen wall, and an accommodating space. A groove is defined in the pen wall and communicates with the accommodating space. The pen head is arranged at one end of the pen holder. The cover plate is arranged corresponding to the groove and covers the groove. The circuit control assembly is received in the accommodating space. The circuit control assembly includes a mainboard and a touch sensing module connected to the mainboard. The touch sensing module is attached to the pen wall or a first inner wall of the cover plate to form a touch sensing area. The touch sensing module is used to receive and sense at least one touch command of fingers in the touch sensing area.

公开(公告)号：US20220199072A1

公开(公告)日：2022-06-23

申请号：US17545883

申请日：2021-12-08

Applicant: Silicon Integrated Systems Corp.

Inventor： Kai-Ping WANG ,  Kun-Tien TING ,  Pin-Han LO

IPC: G10L15/08 ,  G10L21/0216 ,  G10L25/78

Abstract: A voice wake-up device includes a microphone module, an electrical connector, and a microcontroller unit. The microcontroller unit includes at least one microcontroller and a memory for storing microcontroller-executable instructions. The microcontroller-executable instructions enable the microcontroller unit to execute multiple tasks including detecting whether a sound signal is in ambient sounds received by the microphone module, and generating an input sound signal according to the sound signal; determining whether the input sound signal includes a predetermined wake-up voice; and confirming the predetermined wake-up voice is comprised in the input sound signal and outputting a wake-up instruction to wake up the electronic device entering the non-hibernation mode from the hibernation mode.

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：US10944364B2

公开(公告)日：2021-03-09

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: H03F1/07 ,  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：US10761661B2

公开(公告)日：2020-09-01

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 ,  G06F3/041 ,  G06F3/0354

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.

公开(公告)号：US20200186089A1

公开(公告)日：2020-06-11

申请号：US16687708

申请日：2019-11-19

Applicant: Silicon Integrated Systems Corp.

Inventor： Wen-Chi LIN ,  Keng-Nan Chen

IPC: H03D13/00 ,  H01L29/872 ,  G04F10/00 ,  H03L7/093

Abstract: A frequency detector is used for detecting a frequency difference of a signal to be tested from a first time point to a second time point. The frequency detector includes: an alternating current coupled capacitor configured to receive the signal to be tested; a rectifying circuit electrically connected to the alternating current coupled capacitor; an analog-to-digital converter electrically connected to the rectifying circuit; a control unit electrically connected to the analog-to-digital converter; and a counter electrically connected to the rectifying circuit and the control unit, wherein the control unit is configured to calculate the frequency difference of the signal to be tested from the first time point to the second time point according to outputs of the analog-to-digital converter and outputs of the counter.

公开(公告)号：US10570008B2

公开(公告)日：2020-02-25

申请号：US15668844

申请日：2017-08-04

Applicant: SILICON INTEGRATED SYSTEMS CORP.

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

IPC: B81B7/00 ,  B81B7/04 ,  H04R3/04 ,  G01R17/04 ,  H02M3/07

Abstract: A sensing device includes a micro-electromechanical sensor, a source follower and an amplifier. The source follower includes a first output module including a first transistor and a second transistor. The micro-electromechanical sensor is configured to generate an input signal. A first terminal of the first transistor is configured to receive a first reference voltage. A second terminal and a control of the first transistor are electrically connected to the first output terminal and to a first current source respectively. A first terminal and a second terminal of the second transistor are electrically connected to the second terminal and the control terminal of the first transistor respectively. A control terminal of the second transistor is configured to receive the input signal. A first input terminal and a second input terminal of the amplifier are electrically connected to a first output terminal configured to receive a common-mode voltage respectively.

公开(公告)号：US10122337B2

公开(公告)日：2018-11-06

申请号：US15669798

申请日：2017-08-04

Applicant: SILICON INTEGRATED SYSTEMS CORP.

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

IPC: H03G1/00 ,  H03F1/02 ,  H03F1/26 ,  H03F3/45 ,  H03G3/00

Abstract: A programmable gain amplifier includes an active load module, a first differential pair, a second differential pair and a power source module. The first and second differential pairs are electrically connected to the active load module. The power source module is electrically connected to the first current source end of the first differential pair and the second current source end of the second differential pair. The power source module supplies a first current to the first differential pair through the first current source end. The power source module supplies a second current to the second differential pair through the second current source end. The power source module adjusts the potential of the first current, the potential of the second current, or both.

公开(公告)号：US20180160233A1

公开(公告)日：2018-06-07

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: H04R19/00 ,  H04R19/04

CPC classification number: H04R19/005 ,  B81B2201/0257 ,  H04R3/00 ,  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.