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公开(公告)号：US11913864B2
公开(公告)日：2024-02-27
申请号：US17740392
申请日：2022-05-10
Applicant: PixArt Imaging Inc.
Inventor： Yen-Chang Chu , Cheng-Nan Tsai , Chih-Ming Sun
IPC: G01N15/06 , G08B17/107 , G08B29/18 , G01N15/00
CPC classification number: G01N15/06 , G08B17/107 , G08B29/18 , G01N2015/0046 , G01N2015/0693
Abstract: There is provided a smoke detector including a substrate, a light source and a light sensor. The light source and the light sensor are arranged adjacently on the substrate. The substrate is arranged with an asymmetric structure to cause an illumination region of the light source to deviate toward the light sensor thereby increasing a ratio of light intensity reflected by smoke with respect to reference light intensity.
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公开(公告)号：US11867498B2
公开(公告)日：2024-01-09
申请号：US17144080
申请日：2021-01-07
Applicant: PixArt Imaging Inc.
Inventor： Chih-Hao Wang , Yang-Ming Chou , Chien-Yi Kao , Shih-Jen Lu , Chih-Ming Sun , Hsin-Yi Lin
CPC classification number: G01B11/22 , B05B12/004 , B05B12/081 , B05B17/0676
Abstract: A sprayer includes: a container arranged to contain liquid; a passage including a transparent window, a first opening, a second opening and a resonator, wherein when the liquid in the container is passed through the resonator via the first opening, the liquid is emitted as a gas via the second opening; and a detection unit disposed outside of the passage. The detection unit includes: a light source disposed to emit light through the light transparent window for illuminating the gas in the passage such that the gas will reflect the emitted light; an optical sensor disposed to detect a parameter of the reflected light through the transparent window; and a processor coupled to the optical sensor for stopping the resonator from generating the gas when the parameter of the reflected light is below a first threshold corresponding to a specific level of liquid within the container.
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公开(公告)号：US11821785B2
公开(公告)日：2023-11-21
申请号：US17669774
申请日：2022-02-11
Applicant: PixArt Imaging Inc.
Inventor： Chih-Ming Sun , Po-Wei Yu
CPC classification number: G01J1/0422 , G01J1/0411 , H05K1/181 , H05K2201/10121 , H05K2201/10151
Abstract: An optical sensor assembly is provided. The optical sensor assembly includes a circuit board, an optical sensor positioned on the circuit board, and a front cover attached to the circuit board and covering the optical sensor. The front cover includes an optical element configured to guide or condense an incident light of a predetermined wavelength onto the optical sensor. The front cover is made of polypropylene or polyethylene. The predetermined wavelength is in a range from 8 micrometers to 12 micrometers.
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公开(公告)号：US20230252871A1
公开(公告)日：2023-08-10
申请号：US17741459
申请日：2022-05-11
Applicant: PixArt Imaging Inc.
Inventor： Yen-Chang Chu , Yen-Po Chen , Chih-Ming Sun , Cheng-Nan Tsai , Ching-Kun Chen
IPC: G08B17/107
CPC classification number: G08B17/107
Abstract: A smoke detection device includes a housing, a smoke collector, an optical detector and a cover plate. The housing has a piercing hole. The smoker collector has a smoke hole, and position of the smoke hole is close to position of the piercing hole. The optical detector is disposed inside the smoke collector and adapted to detect gaseous concentration inside the smoke collector. The cover plate is disposed between the housing and the smoke collector, and used to set a channel from the piercing hole to the smoke hole, so that gaseous matter flows from outside the smoke detection device into the smoke collector through the piercing hole and the smoke hole.
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公开(公告)号：US11643325B2
公开(公告)日：2023-05-09
申请号：US17939205
申请日：2022-09-07
Applicant: PixArt Imaging Inc.
Inventor： Chih-Ming Sun , Ming-Han Tsai , Yu-Tao Lee
IPC: B81B3/00 , H01L27/146 , H01L23/00 , B81C1/00
CPC classification number: B81B3/0021 , B81C1/00142 , H01L24/16 , H01L27/14618 , H01L27/14636 , B81B2201/033 , B81B2203/0109 , B81B2203/0172 , B81B2203/04 , B81B2203/051 , B81B2203/055 , B81B2207/07 , H01L2224/16245 , H01L2924/1461
Abstract: A MEMS package including a fixed frame, a moveable platform and elastic restoring members is provided. The moveable platform is moved with respect to the fixed frame. The elastic restoring members are connected between the fixed frame and the moveable platform, and used to restore the moved moveable platform to an original position.
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Patent Agency Ranking
公开(公告)号：US11478068B2
公开(公告)日：2022-10-25
申请号：US17065865
申请日：2020-10-08
Applicant: PixArt Imaging Inc.
Inventor： Chih-Ming Sun , Ming Shun Manson Fei , Yi-Hsien Ko
Abstract: There is provided an electric toothbrush including a toothbrush head, a toothbrush handle and a force sensing array. The force sensing array is arranged on the toothbrush head and/or the toothbrush handle. When the force sensing array is arranged on the toothbrush head, it is able to detect the force uniformity of brush hairs. When the force sensing array is arranged on the toothbrush handle, it is able to control the vibration strength of the brush hairs and detect the pressing force of the brush hairs.
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公开(公告)号：US10921199B2
公开(公告)日：2021-02-16
申请号：US16247573
申请日：2019-01-15
Applicant: PixArt Imaging Inc.
Inventor： Chih-Ming Sun
Abstract: There is provided a force sensor including a substrate and a polymer material layer. The substrate has a circuit layout that includes a first electrode and a second electrode configured to form a capacitor therebetween. The polymer material layer covers at least on a space between the first electrode and the second electrode, and is used to change capacitance of the capacitor while being pressed.
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公开(公告)号：US10732049B2
公开(公告)日：2020-08-04
申请号：US16144249
申请日：2018-09-27
Applicant: PIXART IMAGING INC.
Inventor： Ming-Han Tsai , Chih-Ming Sun , Jian-Cheng Liao
Abstract: An electronic device includes an outer case, a circuit substrate, a thermopile sensor chip, a filter structure, and a waterproof structure. The outer case has an opening. The circuit substrate is disposed inside the outer case. The thermopile sensor chip is disposed on the circuit substrate. The filter structure is disposed above the thermopile sensor chip. The waterproof structure is surroundingly connected between the filter structure and the outer case for sealing up the opening of the outer case, wherein the waterproof structure has a through hole for exposing the filter structure and communicated with the opening of the outer case.
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公开(公告)号：US10670465B2
公开(公告)日：2020-06-02
申请号：US16194212
申请日：2018-11-16
Applicant: PIXART IMAGING INC.
Inventor： Chih-Ming Sun , Ming-Han Tsai , Cheng-Nan Tsai
Abstract: A wearable device includes a case and a far infrared temperature sensing device. The case has a first opening. The far infrared temperature sensing device is disposed inside the case of the wearable device. The far infrared temperature sensing device includes an assembly structure, a sensor chip, a filter structure, and a metal shielding structure. The assembly structure has an accommodating space and a top opening. The sensor chip is disposed in the accommodating space of the assembly structure. The filter structure is disposed above the sensor chip. The metal shielding structure is disposed above the sensor chip, and has a second opening to expose the filter structure. The first and second openings are communicated to cooperatively define a through hole.
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公开(公告)号：US10589982B2
公开(公告)日：2020-03-17
申请号：US16448612
申请日：2019-06-21
Applicant: PixArt Imaging Inc.
Inventor： Chih-Ming Sun , Ming-Han Tsai , Yu-Tao Lee
IPC: B81B3/00 , H01L27/146 , H01L23/00 , B81C1/00
Abstract: A sensor package including a fixed frame, a moveable platform, elastic restoring members and a sensor chip is provided. The moveable platform is moved with respect to the fixed frame, and used to carry the sensor chip. The elastic restoring members are connected between the fixed frame and the moveable platform, and used to restore the moved moveable platform to an original position. The sensor chip is arranged on the elastic restoring members to send detected data via the elastic restoring members.
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