公开(公告)号：US20240206820A1

公开(公告)日：2024-06-27

申请号：US18497950

申请日：2023-10-30

Applicant: KINGFAR INTERNATIONAL INC.

Inventor： Qichao ZHAO ,  Ran YANG ,  Zhao LI

IPC: A61B5/00 ,  A61B5/024 ,  A61B5/0295

CPC classification number: A61B5/721 ,  A61B5/02427 ,  A61B5/0295 ,  A61B5/725 ,  A61B5/7278

Abstract: The present disclosure provides a method, an apparatus and a system for filtering pulse signal motion interference. The method comprises: irradiating a skin of a target human body in motion with a green light source in real time, so as to acquire a corresponding pulse signal from the target human body in real time; preprocessing the acquired pulse signal; and adaptively filtering the preprocessed pulse signal based on acceleration data of the target human body acquired in real time, so as to filter out a motion artifact interference of the pulse signal. The present disclosure can effectively improve the accuracy and effectiveness of filtering the pulse signal motion interference of a person in motion without a large amount of data, with a simple calculation process and without a plurality of PPG sensors, and can effectively improve the real-time performance for filtering the pulse signal motion interference.

公开(公告)号：US20240219254A1

公开(公告)日：2024-07-04

申请号：US18497960

申请日：2023-10-30

Applicant: KINGFAR INTERNATIONAL INC.

Inventor： Qichao ZHAO ,  Ran YANG ,  Zhao LI

IPC: G01L25/00 ,  G01L1/20

CPC classification number: G01L25/00 ,  G01L1/20

Abstract: The present disclosure provides a pressure signal fitting method and apparatus. The method comprises the steps of: applying a pressure to each sensing point in a pressure sensor, measuring and integrating a relationship between the pressure and a resistance of each sensing point to obtain a pressure-resistance relationship; correcting the pressure-resistance relationship through a numerical filtering algorithm, and fitting the corrected pressure-resistance relationship to obtain an optimized pressure-resistance relationship; switching sensing points of a voltage sensing circuit by an integrated analog electronic switch to measure voltages of a plurality of arrayed sensing points pressurized; calculating resistances of the plurality of arrayed sensing points according to the measured voltages and in conjunction with an acquisition circuit; calculating pressures of the plurality of arrayed sensing points through the optimized pressure-resistance relationship; and based on areas of pressure zones and non-pressure zones of the plurality of sensing points, calculating actual pressures of the plurality of arrayed sensing points from the calculated pressures thereof through a relationship between the pressure and an intensity of pressure.

公开(公告)号：US20230210439A1

公开(公告)日：2023-07-06

申请号：US18086726

申请日：2022-12-22

Applicant: KINGFAR INTERNATIONAL INC.

Inventor： Qichao ZHAO ,  Ran YANG ,  Zhao LI

IPC: A61B5/397 ,  A61B5/313 ,  A61B5/1455

CPC classification number: A61B5/397 ,  A61B5/313 ,  A61B5/14551

Abstract: The embodiments of the present disclosure provides a device for determining muscle state based on electromyography signal and muscle oxygen saturation. The devices includes: a signal collection module, configured for collecting a human electromyography signal data; a light source detection module, configured for emitting light with different wavelengths; a photosensitive receiver module, configured for receiving light reflected by skin after the light emitted by the light source detection module irradiates the skin; a blood oxygen calculation module, configured for calculating the muscle oxygen saturation based on the light received by the photosensitive receiver module; and a data statistics module, configured for determining the muscle state based on the human electromyography signal data and the muscle oxygen saturation. In this way, an accurate detection of muscle state is realized.

公开(公告)号：US20240215902A1

公开(公告)日：2024-07-04

申请号：US18504543

申请日：2023-11-08

Applicant: KINGFAR INTERNATIONAL INC.

Inventor： Qichao ZHAO ,  Ran YANG ,  Zhao LI

IPC: A61B5/384 ,  A61B5/00 ,  A61B5/1455 ,  A61B5/256 ,  A61B5/259 ,  A61B5/265 ,  A61B5/291 ,  A61B5/31

CPC classification number: A61B5/384 ,  A61B5/14553 ,  A61B5/256 ,  A61B5/259 ,  A61B5/265 ,  A61B5/291 ,  A61B5/31 ,  A61B5/7225 ,  A61B5/7271 ,  A61B2560/02 ,  A61B2560/0468 ,  A61B2562/0215 ,  A61B2562/0238 ,  A61B2562/043 ,  A61B2562/227

Abstract: A multimodal brain function signal acquisition device and method are provided. The device comprises: a cap; an electroencephalogram (EEG) signal acquisition device which comprises a support member and a plurality of acquisition tentacles; the support member is a hollow cylinder, the acquisition tentacles are disposed along a circumference of a first port of the support member, and the first port is connected to the cap; a near-red signal acquisition device which comprises a light guide column, a near infrared light source and a photodiode; the light guide column is a transparent hollow cylinder disposed within an inner periphery of the support member, the near infrared light source and the photodiode are disposed at a second port of the light guide column, and the first port of the light guide column is fixed on the cap; a transimpedance amplifier connected to the photodiode; a first analog-to-digital converter connected to the EEG signal acquisition device; a second analog-to-digital converter connected to the photodiode; and a micro-control unit connected to the first analog-to-digital converter and the second analog-to-digital converter.

公开(公告)号：US20240039844A1

公开(公告)日：2024-02-01

申请号：US18088907

申请日：2022-12-27

Applicant: KINGFAR INTERNATIONAL INC.

Inventor： Qichao ZHAO ,  Ran YANG ,  Zhao LI

IPC: H04L45/74

CPC classification number: H04L45/74 ,  H04L67/12

Abstract: Disclosed are a sensor data transmission method and a device. The method includes: a periodic signal acquisition apparatus receiving a message requesting for data packet description information from a data receiving end and reporting the data packet description information to the data receiving end, wherein the data packet description information includes: signal type information, the acquisition rate for each type of signal, and the sending rate of a data packet; receiving a data reporting request from the receiving end, and sending a data packet to the data receiving end according to the sending rate of the data packet in the data packet description information, wherein the data packet sent to the data receiving end contains a packet header portion and a load portion, the packet header portion includes a frame header field, a load length field, and a check field.