公开(公告)号：US20230218207A1

公开(公告)日：2023-07-13

申请号：US17574574

申请日：2022-01-13

Applicant: PixArt Imaging Inc.

Inventor： Chih-Hao Wang ,  Chien-Yi Kao ,  Yang-Ming Chou ,  Shih-Jen Lu ,  Hsin-Yi Lin

IPC: A61B5/145 ,  A61B5/297 ,  A61B5/398 ,  A61B5/00 ,  A61B5/315 ,  A61B5/18

CPC classification number: A61B5/14546 ,  A61B5/297 ,  A61B5/398 ,  A61B5/4845 ,  A61B5/315 ,  A61B5/6802 ,  A61B5/18

Abstract: A substance concentration measuring device, for measuring a substance concentration for a target substance in blood of a subject, comprising: a processing circuit; and a plurality of electrodes. At least two of the electrodes touches the subject when the subject wears the substance concentration measuring device, thereby the processing circuit can acquire at least one physiological signal caused by an eye of the subject. The processing circuit computes a voltage value or a voltage difference of the physiological signal, and computes the substance concentration according to the voltage value or the voltage difference. A human condition monitoring system comprising the substance concentration measuring device is also disclosed.

公开(公告)号：US20220305510A1

公开(公告)日：2022-09-29

申请号：US17840596

申请日：2022-06-14

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 ,  G01F23/296 ,  G01F23/292

Abstract: A sprayer includes: a container; a passage including a transparent window, a first opening, a second opening and a resonator, wherein when 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 removable detection unit disposed outside of the passage. The removable detection unit includes: a light source for illuminating the gas in the passage; an optical sensor disposed to detect a parameter of light reflected by the gas; and a processor coupled to the optical sensor for stopping the resonator from generating the gas when the parameter is below a threshold. The passage further includes a cavity disposed on a bottom surface of the passage in front of the optical sensor, wherein when the gas in the passage contacts the bottom surface, resultant water vapour will enter the cavity.

公开(公告)号：US20210290085A1

公开(公告)日：2021-09-23

申请号：US16822024

申请日：2020-03-18

Applicant: PixArt Imaging Inc.

Inventor： Shih-Jen Lu ,  Yang-Ming Chou ,  Chien-Yi Kao ,  Hsin-Yi Lin ,  Chih-Ming Sun ,  Chung-Yuo Wu

IPC: A61B5/0295 ,  A61B5/026 ,  A61B5/021 ,  A61B5/00 ,  A61B5/0205

Abstract: An optical medical detection device includes a first physiological sensor and a processor. The first physiological sensor is adapted to continuously output a first photoplethysmography (PPG) signal generated by a first skin area of an object, and further to optionally and continuously output a second photoplethysmography (PPG) signal generated by a second skin area of the object. The second skin area is different from the first skin area. The processor is electrically connected to the first physiological sensor. The processor is adapted to convert the first PPG signal and the second PPG signal into a physiological feature, and the physiological feature is at least one of a blood pressure ratio and a blood flow velocity.

公开(公告)号：US12251722B2

公开(公告)日：2025-03-18

申请号：US17840596

申请日：2022-06-14

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 ,  G01F23/292 ,  G01F23/296

Abstract: A sprayer includes: a container; a passage including a transparent window, a first opening, a second opening and a resonator, wherein when 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 removable detection unit disposed outside of the passage. The removable detection unit includes: a light source for illuminating the gas in the passage; an optical sensor disposed to detect a parameter of light reflected by the gas; and a processor coupled to the optical sensor for stopping the resonator from generating the gas when the parameter is below a threshold. The passage further includes a cavity disposed on a bottom surface of the passage in front of the optical sensor, wherein when the gas in the passage contacts the bottom surface, resultant water vapour will enter the cavity.

公开(公告)号：US20240100553A1

公开(公告)日：2024-03-28

申请号：US18530152

申请日：2023-12-05

Applicant: PixArt Imaging Inc.

Inventor： Shih-Jen Lu ,  Yang-Ming Chou ,  Chih-Hao Wang ,  Chien-Yi Kao ,  Hsin-Yi Lin

IPC: B05B12/08

CPC classification number: B05B12/082

Abstract: A sprayer, comprising: a container, configured to contain liquid; a passage, comprising a first opening, a second opening, a resonator and a mesh, when the liquid is passed through the resonator, the liquid is emitted as a gas; a first optical sensor, configured to sense first optical data of at least portion of the mesh or at least portion of a surface of the container; and a processing circuit, configured to compute a foaming level of the mesh or of the surface according to the first optical data, and configured to determine whether the resonator should be turned off or not according to the foaming level. In another aspect, the processing circuit estimates a liquid level of the liquid but does not correspondingly turn off the resonator. By this way, the resonator may be turned on or turned off more properly and the liquid level may be more precisely estimated.

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

IPC: G01B11/22 ,  B05B12/08 ,  B05B12/00 ,  B05B17/06

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.

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.