公开(公告)号：US20250093248A1

公开(公告)日：2025-03-20

申请号：US18971651

申请日：2024-12-06

Applicant: PixArt Imaging Inc.

Inventor： Yen-Chang Chu ,  Cheng-Nan Tsai ,  Chih-Ming Sun

IPC: G01N15/06 ,  G01N15/00 ,  G01N15/075 ,  G08B17/107 ,  G08B29/18

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.

公开(公告)号：US12215872B2

公开(公告)日：2025-02-04

申请号：US18224288

申请日：2023-07-20

Applicant: PixArt Imaging Inc.

Inventor： Chih-Ming Sun ,  Ming-Han Tsai ,  Chiung-Wen Lin ,  Po-Wei Yu ,  Wei-Ming Wang ,  Sen-Huang Huang

IPC: F24C15/20 ,  A61F13/42 ,  B66B5/00 ,  G01J5/00 ,  G01J5/10

Abstract: There is provided an auto detection system including a thermal detection device and a host. The host controls an indication device to indicate a prompt message or detection results according to a slope variation of voltage values or 2D distribution of temperature values detected by the thermal detection device, wherein the voltage values include the detected voltage of a single pixel or the sum of detected voltages of multiple pixels of a thermal sensor.

公开(公告)号：US12213804B2

公开(公告)日：2025-02-04

申请号：US17849941

申请日：2022-06-27

Applicant: PIXART IMAGING INC.

Inventor： Wei-Lun Sung ,  Po-Wei Yu ,  Chih-Ming Sun

IPC: H04R1/10 ,  A61B5/00 ,  A61B5/01

Abstract: An earbud with temperature sensing is provided, and the earbud includes a housing, a speaker and a first temperature sensor. The housing defines a first opening and a second opening. The speaker is disposed within the housing and oriented so that audio emitted by the speaker exits the housing through the first opening defined by the housing. The first temperature sensor is positioned along an interior surface of the housing and aligned with the second opening in the housing for non-contact temperature sensing. In response to the earbud being positioned for use within an ear of a user, the second opening aligns with an inner side of the tragus close to the ear canal, the cavum conchae, an inner edge of the antitragus, or the cheek close to the ear, such that the first temperature sensor detects a body temperature of the user through the second opening.

公开(公告)号：US11686623B2

公开(公告)日：2023-06-27

申请号：US17200713

申请日：2021-03-12

Applicant: PIXART IMAGING INC.

Inventor： Ming-Han Tsai ,  Chih-Ming Sun ,  Jian-Cheng Liao

IPC: G01J5/04 ,  G01J5/12 ,  G01J5/0875 ,  G01J5/00 ,  G01J5/05 ,  G01J5/0802

CPC classification number: G01J5/048 ,  G01J5/0025 ,  G01J5/05 ,  G01J5/0802 ,  G01J5/0875 ,  G01J5/12

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, wherein the waterproof structure has a through hole for exposing the filter structure and communicated with the opening of the outer case.

公开(公告)号：US20220307925A1

公开(公告)日：2022-09-29

申请号：US17680232

申请日：2022-02-24

Applicant: PixArt Imaging Inc.

Inventor： Chih-Ming Sun ,  Yen-Po Chen

IPC: G01L1/14 ,  H05K1/03 ,  H05K1/11

Abstract: An earphone device includes a housing subassembly, an inner casing subassembly, an audio processor, and a force sensor patch. The inner casing subassembly is disposed in the housing subassembly and integrated with a printed circuit board having specific electrode (s). The audio processor is disposed on the printed circuit board. The force sensor patch is pasted onto specific electrode (s) of the printed circuit board to be coupled to the audio processor through specific electrode(s). The force sensor patch is disposed between a part of the housing subassembly and a part of the inner casing subassembly and arranged to detect a user's pressure applied onto the part of the housing subassembly.

公开(公告)号：US11280670B2

公开(公告)日：2022-03-22

申请号：US16951065

申请日：2020-11-18

Applicant: PixArt Imaging Inc.

Inventor： Chih-Ming Sun ,  Po-Wei Yu

IPC: G01J1/04 ,  H05K1/18

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.

公开(公告)号：US11280500B2

公开(公告)日：2022-03-22

申请号：US16818442

申请日：2020-03-13

Applicant: PixArt Imaging Inc.

Inventor： Chih-Ming Sun ,  Ming-Han Tsai ,  Chiung-Wen Lin ,  Po-Wei Yu ,  Wei-Ming Wang ,  Sen-Huang Huang

IPC: F24C15/20 ,  B66B5/00 ,  A61F13/42 ,  G01J5/10 ,  G01J5/00

Abstract: There is provided an auto detection system including a thermal detection device and a host. The host controls an indication device to indicate a prompt message or detection results according to a slope variation of voltage values or 2D distribution of temperature values detected by the thermal detection device, wherein the voltage values include the detected voltage of a single pixel or the sum of detected voltages of multiple pixels of a thermal sensor.

公开(公告)号：US11268859B2

公开(公告)日：2022-03-08

申请号：US16850187

申请日：2020-04-16

Applicant: PIXART IMAGING INC.

Inventor： Chih-Ming Sun ,  Ming-Han Tsai ,  Cheng-Nan Tsai

IPC: G01J5/02 ,  G01J5/04 ,  H04N5/33 ,  G01J5/06 ,  H04N5/225 ,  B81B7/00

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.

公开(公告)号：US20210220855A1

公开(公告)日：2021-07-22

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

IPC: B05B12/08 ,  B05B17/06 ,  B05B12/00

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.

公开(公告)号：US10983009B2

公开(公告)日：2021-04-20

申请号：US16906002

申请日：2020-06-19

Applicant: PIXART IMAGING INC.

Inventor： Ming-Han Tsai ,  Chih-Ming Sun ,  Jian-Cheng Liao

IPC: G01J5/04 ,  G01J5/12 ,  G01J5/08 ,  G01J5/00

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, wherein the waterproof structure has a through hole for exposing the filter structure and communicated with the opening of the outer case.