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公开(公告)号：US20230078321A1
公开(公告)日：2023-03-16
申请号：US17930249
申请日：2022-09-07
Applicant: Silicon Integrated Systems Corp.
Inventor： Min-han Lee
IPC: G06F3/0354 , G06F3/038 , H04M1/72412 , G06F3/041
Abstract: An interactive control system includes: an active pen; and an electronic device configured to wirelessly control the active pen, receive a user command, and generate a control command according to the user command, wherein at least one of the active pen and the electronic device is configured to execute a control function according to the control command.
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公开(公告)号：US20210305835A1
公开(公告)日：2021-09-30
申请号：US17205002
申请日：2021-03-18
Applicant: Silicon Integrated Systems Corp.
Inventor： Song-Sheng LIN , Keng-Nan CHEN
Abstract: A constant current charging device is configured to charge a device to be charged and includes: a reference current source configured to provide a reference current; a current mirror electrically coupled to the reference current source and configured to output a mirror current; a current adjusting unit electrically coupled to the current mirror and the device to be charged and configured to output a charging current according to the mirror current to charge the device to be charged; and a current compensation unit electrically coupled to the current mirror and the current adjusting unit and configured to adjust the charging current according to a reference voltage.
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公开(公告)号：US20210305834A1
公开(公告)日：2021-09-30
申请号：US17205017
申请日：2021-03-18
Applicant: Silicon Integrated Systems Corp.
Inventor： Song-Sheng LIN , Keng-Nan CHEN
IPC: H02J7/00
Abstract: A constant current charging device is configured to charge a device to be charged and includes: a current regulating unit electrically coupled to the device to be charged and configured to provide a regulating current and a charging current according to a reference voltage; a current-to-voltage converting unit electrically coupled to the current regulating unit and configured to output a regulating voltage according to the regulating current; and a first operational amplifier electrically coupled to the current regulating unit, the current-to-voltage converting unit, and the device to be charged and configured to regulate the regulating current.
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公开(公告)号：US11114979B2
公开(公告)日：2021-09-07
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 , H03L7/093 , G04F10/00 , H01L29/872
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.
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公开(公告)号：US10809858B2
公开(公告)日：2020-10-20
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 , G06F3/041 , G06F3/0354
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.
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Patent Agency Ranking
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.
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公开(公告)号：US20180127264A1
公开(公告)日：2018-05-10
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
CPC classification number: B81B7/008 , B81B2201/02 , G01R17/04 , H02M3/07 , H04R3/04 , H04R2201/003 , H04R2410/00
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.
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公开(公告)号：US20180121021A1
公开(公告)日：2018-05-03
申请号：US15693309
申请日：2017-08-31
Applicant: SILICON INTEGRATED SYSTEMS CORP.
Inventor： Hsin-Hsuan YU , Chin-Hua KUO
CPC classification number: G06F3/0418 , G06F3/044
Abstract: A touch detection method is applied to a touch panel including sensing units and includes: detecting sensing values corresponding to the sensing units; selecting a first sensing value that is a local maximum among the sensing values; determining a first sensing unit corresponding to the first sensing value among the sensing units; selecting from the sensing units a second sensing unit located at the first side of the first sensing unit; selecting from the sensing values a second sensing value corresponding to the second sensing unit; and generating a touch coordinate according to the first sensing value, the second sensing value, a touch sensing value distribution model, and the coordinate of the first sensing unit.
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公开(公告)号：US09898109B2
公开(公告)日：2018-02-20
申请号：US14958612
申请日：2015-12-03
Applicant: Silicon Integrated Systems Corp.
Inventor： Min-Yan Ciou , Chin-Hua Kuo , Ying-Jyh Yeh
IPC: G06F3/038 , G06F3/041 , G06F3/044 , G06F3/0354
CPC classification number: G06F3/0383 , G06F3/03545 , G06F3/0416 , G06F3/044
Abstract: The disclosure provides an active stylus pen and signal transmission methods for the active stylus pen and a touch panel. The stylus has a touch module, a switching module, a signal comparison module, a control module and a pressure sensing module. The stylus determines a first signal generated by a touch panel, and compares an intensity of the first signal and a reference value through a first transmission path. When the intensity of the first signal exceeds the reference value, the stylus outputs a second signal to the touch panel. After the stylus outputs the second signal to the touch panel, the stylus switches to a second transmission path from the first transmission path. The stylus outputs a header signal to the touch panel. When determining a first time sequential distribution, the stylus outputs at least one bit of a pressure signal according to a second time sequential distribution.
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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
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。
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