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公开(公告)号：US20190156111A1
公开(公告)日：2019-05-23
申请号：US16252769
申请日：2019-01-21
Applicant: PixArt Imaging Inc.
Inventor： LIANG-CHI CHIU , YU-HAN CHEN , MING-TSAN KAO
Abstract: A user recognition and confirmation device includes an image sensing unit, a face recognition unit, a display unit and an expression recognition unit. The image sensing unit captures a first image frame and a second image frame. The face recognition unit is configured to recognize a user ID according to the first image frame. The display unit is configured to show ID information of the user ID. The expression recognition unit is configured to confirm a user expression according to the second image frame and output a confirm signal. There is further provided a user recognition and confirmation method and a central control system for vehicles.
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公开(公告)号：US20180260066A1
公开(公告)日：2018-09-13
申请号：US15457495
申请日：2017-03-13
Applicant: PIXART IMAGING INC.
Inventor： YU-HAN CHEN , HAN-SHU LIN , JUNG-TAI LIN
CPC classification number: G06F3/044 , G06F3/0418
Abstract: Provided herein are a sensing device and a control method thereof. The sensing device comprises a control unit, at least one first sensor and at least one fake sensor. The first sensor configured for detecting a touch event and generating a first sensing signal corresponding to an environmental change and an applied touch event, and sending the first sensing signal to the control unit. The fake sensor configured for generating a second sensing signal corresponding to the environmental change, and sending the second sensing signal to the control unit, wherein the control unit compensates the first sensing signal for the environmental change by using the second sensing signal and generates a compensated signal corresponding to the applied touch event. Accordingly, the present invention achieves the result of removing the influence of environmental changes for the sensing device.
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公开(公告)号：US20140253497A1
公开(公告)日：2014-09-11
申请号：US14161827
申请日：2014-01-23
Applicant: PixArt Imaging Inc.
Inventor： FU-CHEN CHEN , MING-TSAN KAO , YU-HAN CHEN
CPC classification number: G06F3/0416 , G06F1/3262 , G06F3/044 , Y02D50/20
Abstract: There is provided a capacitive touch device including a controlling and processing circuit and a touch panel. The touch panel has a plurality of detection cells arranged in matrix. The controlling and processing circuit is configured to input a drive signal to the detection cells of the touch panel and read measurement data from the detection cells for post-processing, wherein the controlling and processing circuit reads a first sampling number of the measurement data of the detection cells in a normal mode and a second sampling number of the measurement data of the detection cells in a sleep mode, and the second sampling number is lower than the first sampling number.
Abstract translation: 提供了包括控制和处理电路和触摸面板的电容式触摸装置。 触摸面板具有排列成矩阵状的多个检测单元。 控制和处理电路被配置为向触摸面板的检测单元输入驱动信号，并从用于后处理的检测单元读取测量数据，其中控制和处理电路读取第一取样数量的测量数据 正常模式的检测单元和睡眠模式下的检测单元的测量数据的第二采样数，第二采样数低于第一采样数。
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公开(公告)号：US20250046544A1
公开(公告)日：2025-02-06
申请号：US18924142
申请日：2024-10-23
Applicant: PIXART IMAGING INC.
Inventor： CHE-CHIA HSU , CHI-CHIEH LIAO , YU-HAN CHEN
IPC: H01H13/807 , H01H13/14
Abstract: A mechanical key component and a mechanical keyboard are provided. The mechanical key component includes a circuit board, an elastic element and a key cap. The circuit board is provided with a first sensing electrode. The elastic element is disposed on the circuit board, and a movable portion of the elastic element is connected to a second sensing electrode. The key cap is movably disposed on the elastic element. The elastic element enables the key cap to move between an unpressed position and a pressed position, and the movable portion drives the second sensing electrode to move relative to the first sensing electrode. In response to the key cap being moved between the unpressed position and the pressed position, a coupling capacitance between the first sensing electrode and the second sensing electrode changes to indicate whether the key cap is in the unpressed position or the pressed position.
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Patent Agency Ranking
公开(公告)号：US20240319815A1
公开(公告)日：2024-09-26
申请号：US18735474
申请日：2024-06-06
Applicant: PIXART IMAGING INC.
Inventor： CHE-CHIA HSU , CHI-CHIEH LIAO , YU-HAN CHEN
IPC: G06F3/041 , G06F3/044 , H01L25/075
CPC classification number: G06F3/0416 , G06F3/0445 , H01L25/0753
Abstract: A lighting touchpad is provided. The lighting touchpad includes a substrate, a plurality of first electrodes, a plurality of second electrodes, a plurality of bonding pads and a plurality of lighting devices. The plurality of first electrodes, the plurality of second electrodes and the plurality of bonding pads are arranged on the substrate, and the first electrodes, the second electrodes, and the bonding pads are alternately arranged in a sensing area without overlapping with one another. The pluralities of lighting devices are connected to a part of the bonding pads. The sensing area includes a plurality of sensing cells, and the first electrodes, the second electrodes and the bonding pads are arranged according to a predetermined spatial characteristic for each of the sensing cells
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公开(公告)号：US20230333667A1
公开(公告)日：2023-10-19
申请号：US17945204
申请日：2022-09-15
Applicant: PIXART IMAGING INC.
Inventor： YU-HAN CHEN , TSE-CHUNG SU , SUNG-HAN WU , XIAO-LIN CHUANG , CHI-CHIEH LIAO
IPC: G06F3/023
CPC classification number: G06F3/023
Abstract: An input method and a controller of a touch keyboard are provided. The input method includes: detecting a touch behavior performed on the touch keyboard, and identifying the touch behavior to determine whether to output mouse event data, keyboard event data or a combination of mouse event data and keyboard event data.
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17.发明申请公开(公告)号：US20220334014A1
公开(公告)日：2022-10-20
申请号：US17233806
申请日：2021-04-19
Applicant: PIXART IMAGING INC.
Inventor： CHE-CHIA HSU , YU-HAN CHEN , CHI-CHIEH LIAO
Abstract: A pressure sensing unit, a capacitive hybrid sensor device, and an input apparatus using the same are provided. The pressure sensing unit for detecting pressing events includes a pressure sensing pad group and a floating conductive element. The pressure sensing pad group includes a first pressure sensing pad, a second pressure sensing pad, and a ground pad that are spaced apart from one another. The first pressure sensing pad and the second pressure sensing pad are electrically shielded from each other by the ground pad. One of the floating conductive element and the pressure sensing pad group is configured to be movable in a movement direction relative to another one of the floating conductive element and the pressure sensing pad group. The floating conductive element overlaps with the pressure sensing pad group in the movement direction.
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公开(公告)号：US20220209771A1
公开(公告)日：2022-06-30
申请号：US17134940
申请日：2020-12-28
Applicant: PIXART IMAGING INC.
Inventor： CHE-CHIA HSU , YU-HAN CHEN , CHI-CHIEH LIAO
Abstract: A touch sensor and a keyboard using the same are provided. The touch sensor includes a plurality of main sensor structures and a plurality of resilient structures. Any two adjacent ones of the main sensor structures have a gap therebetween. Each of the resilient structures is connected between two adjacent ones of the main sensor structures, and each of the resilient structures has a cross-sectional width that is less than a width of the gap.
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公开(公告)号：US20210320659A1
公开(公告)日：2021-10-14
申请号：US16843570
申请日：2020-04-08
Applicant: PIXART IMAGING INC.
Inventor： CHE-CHIA HSU , YU-HAN CHEN , CHI-CHIEH LIAO
IPC: H03K17/98 , H03K17/96 , G06F3/02 , H01H3/12 , H01H13/705
Abstract: A key unit and a keyboard using the same are provided. The key unit includes a circuit board, an elastic element, a keycap, and a processing circuit. The circuit board includes a capacitance sensing circuit embedded therein, and the capacitance sensing circuit includes a pair of sensor electrodes. The elastic element is disposed on the circuit board. The keycap is moveably disposed above and spaced apart from the circuit board. The elastic element is disposed between the keycap and the circuit board so that the keycap moves between a non-depressed position and a depressed position with respect to the circuit board. The processing circuit is electrically connected to the pair of sensor electrodes to obtain a variation of a coupling capacitance between the pair of sensor electrodes and to determine whether the keycap is touched or depressed according to the variation of coupling capacitance.
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