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11.发明授权公开(公告)号：US10261687B2
公开(公告)日：2019-04-16
申请号：US15651030
申请日：2017-07-17
Applicant: PIXART IMAGING INC.
Inventor： Yu-Han Chen , Chien-An Chen , Chi-Chieh Liao
Abstract: Provided herein are a pin sharing circuit, a pin sharing method and an electronic device, an electronic wire using the same. The pin sharing circuit enables at least one pin on an integrated circuit to be shared by a keyboard device and a touch panel and prevents signal interference between the keyboard device and the touch panel using an impedance element disposed on a wire for the pin, such that the pin can output or receive a stimulation signal and a sensor signal that contain both an AC component and a DC component so as to enhance the efficiency of the overall system and prevent the stimulation signal and the sensor signal from conflicts between the keyboard device and the touch panel.
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公开(公告)号：US20240317248A1
公开(公告)日：2024-09-26
申请号：US18732651
申请日：2024-06-04
Applicant: PixArt Imaging Inc.
Inventor： Chao-An Chen , Yu-Han Chen , Chin-Hua Hu
Abstract: A driving ability determining system, provided in a vehicle and for determining a driving ability of a driver of the vehicle, comprising: a HOD device embedded on a steering wheel, configured to receive at least one user input, wherein the user input is generated by the driver responding to a test instruction; and a processing circuit, configured to determine the driving ability of the driver according to the user input. By using such system, the driving ability may be determined in real time. Also, the driving function of the vehicle may be stopped if the driving ability is determined to be poor. By this way, the safety of driving vehicles may be increased.
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公开(公告)号：US20240092415A1
公开(公告)日：2024-03-21
申请号：US17949232
申请日：2022-09-21
Applicant: PixArt Imaging Inc.
Inventor： Chin-Hua Hu , Ching-Shun Chen , Yu-Han Chen , Yu-Sheng Lin
Abstract: An HOD device, comprising: a framework; covering material, covering the frame work; at least one conductive region, provided on or in the covering material; wherein the conductive region is coupled to a capacitance detection circuit or a predetermined voltage level. The HOD device can be a vehicle control device such as a steering wheel. The conductive region comprises conductive wires which can be threads of the covering material. By this way, the arrangements of the conductive wires can be changed corresponding to the size or the shape of the frame work or any other requirements. Also, the interference caused by unstable factors can be improved since the conductive wires can be coupled to a ground source of the vehicle to provide a short capacitance sensing path.
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公开(公告)号：US11418193B2
公开(公告)日：2022-08-16
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 , H01H13/705 , H01H3/12 , G06F3/02
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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公开(公告)号：US20210290158A1
公开(公告)日：2021-09-23
申请号：US17338618
申请日：2021-06-03
Applicant: PixArt Imaging Inc.
Inventor： Che-Chia Hsu , Jian-Cheng Liao , Yu-Han Chen , Chi-Chieh Liao
IPC: A61B5/00 , G04G21/02 , H03K17/955
Abstract: A wearable electronic device with a function of detecting a wearing state, comprising: a plurality of electrodes; a capacitance calculating circuit, coupled to the electrodes, configured to calculate capacitance variations generated by at least two of the electrode; and a wearing state determining circuit, coupled to the capacitance calculating circuit, configured to determine the wearing state according to the capacitance variations. The wearing state determining circuit determines that the user wears the wearable electronic device in a proper manner if the capacitance variations indicate at least two of the electrodes indicate the user touches wearing state determining circuit. By this way, the wearing state can be auto detected and the wearable electronic device can be correspondingly control according to the wearing state.
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Patent Agency Ranking
公开(公告)号：US20210100502A1
公开(公告)日：2021-04-08
申请号：US16591651
申请日：2019-10-03
Applicant: PixArt Imaging Inc.
Inventor： Che-Chia Hsu , Jian-Cheng Liao , Yu-Han Chen , Chi-Chieh Liao
IPC: A61B5/00 , H03K17/955 , G04G21/02
Abstract: A wearable electronic device with a function of detecting a wearing state, comprising: at least one electrode; a capacitance calculating circuit, coupled to the electrode, configured to calculate a capacitance variation generated by at least one of the electrode; and a wearing state determining circuit, coupled to the capacitance calculating circuit, configured to determine the wearing state according to the capacitance variation. By this way, the wearing state can be auto detected and the wearable electronic device can be correspondingly control according to the wearing state.
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公开(公告)号：US10955308B2
公开(公告)日：2021-03-23
申请号：US16746967
申请日：2020-01-20
Applicant: PixArt Imaging Inc.
Inventor： Yu-Han Chen , Chih-Wei Huang , Chi-Chieh Liao , Wei-Chung Wang
Abstract: A pressure measuring method, applied to a pressure measuring apparatus, comprising: measuring a first pressure sensing value when the pressure measuring apparatus operates at a first scan frequency and receives a first pressure; and measuring a second pressure sensing value when the pressure measuring apparatus operates a second scan frequency and receives the first pressure. The first pressure sensing value and the second pressure sensing value are different, and a change between the first pressure sensing value and the second pressure sensing value is according to a change between the first scan frequency and the second scan frequency. The first scan frequency and the second scan frequency are different. The pressure measuring method can further comprise a calibrating mechanism to compensate the sensed pressure. By this way, the pressure sensing value can be calibrated, to solve the issue that the pressure sensing values are affected by scan frequencies.
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公开(公告)号：US09952732B2
公开(公告)日：2018-04-24
申请号：US15176687
申请日：2016-06-08
Applicant: PixArt Imaging Inc.
Inventor： Sung-Han Wu , Yu-Han Chen , Ming-Hung Tsai , Meng-Lin Yu , Hsin-Chia Chen
CPC classification number: G06F3/044 , G06F3/0418
Abstract: There is provided a capacitive touch device including a touch panel, a detection circuit and a processing unit. The touch panel includes a plurality of drive electrodes and a plurality of receiving electrodes configured to form a coupling electric field with an external touch panel, and the receiving electrodes are respectively configured to output a detection signal. The detection circuit is coupled to one of the receiving electrodes and configured to modulate the detection signal with two signals to generate two detection components. The processing unit is configured to obtain a phase value according to the two detection components to accordingly decode transmission data.
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公开(公告)号：US20250091633A1
公开(公告)日：2025-03-20
申请号：US18970973
申请日：2024-12-06
Applicant: PixArt Imaging Inc.
Inventor： Chin-Hua Hu , Yu-Han Chen , Yu-Sheng Lin
IPC: B62D1/04 , G06F3/044 , G06F3/0488
Abstract: A pressure sensing device, comprising: a frame work; a capacitive pressure sensor layer, surrounding the frame work; a capacitive touch sensor layer; and a flexible material layer, located between the pressure sensor layer and the touch sensor layer and surrounding the capacitive pressure sensor layer. The capacitive touch sensor layer is above the flexible material layer when the capacitive pressure sensor layer is below the flexible material layer. The capacitive touch sensor layer has a first driving electrode and a first sensing electrode. The capacitive pressure sensor layer has a second driving electrode and a second sensing electrode. A 3D gesture control system and a vehicle control system applying the pressure sensing device are also disclosed. Via the pressure sensing device, the 3D gesture control system and the vehicle control system can generate control commands according to a touch or a pressure provided by a user.
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公开(公告)号：US12223151B2
公开(公告)日：2025-02-11
申请号：US18640087
申请日：2024-04-19
Applicant: PIXART IMAGING INC.
Inventor： Che-Chia Hsu , Chun-Lin Tseng , Yu-Han Chen
IPC: G06F3/044
Abstract: A circuit carrier includes a substrate, a capacitive electrode layer, a plurality of metal pads and a plurality of bridges, and a plurality of conductive pillars. The capacitive electrode layer formed on a surface of the substrate and includes a plurality of first electrodes and a plurality of second electrodes. At least two of the first electrodes are connected to each other and be arranged across a die-bonding region of the substrate for separating at least two of the second electrodes that partially protrude from the die-bonding region to respectively form extensions. The metal pads and the bridges are formed on another surface of the substrate and are located outside of the die-bonding region. Each of the bridges connects two of the metal pads, and each of the conductive pillars is embedded in the substrate and connects one of the extensions and a corresponding one of metal pads.
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