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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
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.
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公开(公告)号：US20250064330A1
公开(公告)日：2025-02-27
申请号：US18938442
申请日：2024-11-06
Applicant: KINGFAR INTERNATIONAL INC.
Inventor： Qichao ZHAO , Ran YANG , Qingju WANG
Abstract: A system, an electronic device and an optical signal processing method including receiving optical signals by a spectrum analyzer, which outputs a first wavelength range of the optical signals, primary filtering the first wavelength range based on a pre-set wavelength threshold of red light to obtain a second wavelength range, accessing wavelength ranges of ambient light acquired, respectively accessing upper limit values and lower limit values of the wavelength ranges of the ambient light, obtaining a filtering upper and lower limit value respectively based on the upper limit values and the lower limit values, and setting a filtering wavelength range based on the filtering upper limit value and the filtering lower limit value, re-filtering the second wavelength range based on the filtering wavelength range to obtain a target filtering range, filtering the optical signals with the target filtering range to filter out ambient light from the optical signals.
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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.
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4.发明公开公开(公告)号：US20240070575A1
公开(公告)日：2024-02-29
申请号：US18239148
申请日：2023-08-29
Applicant: KINGFAR INTERNATIONAL INC.
Inventor： Qichao ZHAO , Ran YANG
IPC: G06Q10/0631 , A61B5/16
CPC classification number: G06Q10/063112 , A61B5/165
Abstract: The present application provides a method, system, and storage medium of personnel situational awareness evaluation and training, the method comprises: obtaining situational awareness scenes and tasks; performing the personnel situational awareness testing or training through the situational awareness task in the situational awareness scene, obtaining an objective data for each dimension of a plurality of situational awareness tasks collected by personnel based on a plurality of sensing devices during an implementation of the situational awareness tasks, obtaining subjective evaluation results of the personnel after the situational awareness testing or training; a multiple regression analysis is performed based on the objective data and the subjective evaluation results of each dimension of each situational awareness task to obtain a single task and single dimension evaluation result, a single task and total task evaluation results of the situational awareness task; after each personnel situational awareness training, reviewing the personnel situational awareness training.
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公开(公告)号：US20240053385A1
公开(公告)日：2024-02-15
申请号：US18088945
申请日：2022-12-27
Applicant: KINGFAR INTERNATIONAL INC.
Inventor： Qichao ZHAO , Ran Yang , Zhao Li
Abstract: Disclosed are an EEG impedance test circuit, a method, and a device. The circuit comprises a frequency selecting circuit, an amplification circuit, a follower circuit, and a power supply terminal AVCC. An input end of the frequency selecting circuit is connected to the power supply terminal AVCC, the input end of the frequency selecting circuit is further connected to the input end of the amplification circuit, an output end of the frequency selecting circuit is connected to the output end of the amplification circuit, and the output end of the amplification circuit is connected to the input end of the follower circuit; the frequency selecting circuit is configured for oscillating so as to generate an oscillation signal; and the follower circuit is configured for isolating the frequency selecting circuit and the amplification circuit; the follower circuit is configured for circuit isolation.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240138774A1
公开(公告)日：2024-05-02
申请号：US18379364
申请日：2023-10-12
Applicant: KINGFAR INTERNATIONAL INC.
Inventor： Qichao ZHAO , Ran YANG
IPC: A61B5/00
CPC classification number: A61B5/7275 , A61B5/7225
Abstract: Disclosed is a method for processing human biological signal data, including: traversing an original human biological signal with a plurality of preset peak-to-peak value adjustment time windows; acquiring an original peak-to-peak value of the original human biological signal within a previous peak-to-peak value adjustment time window; determining a target adjustment multiple of the current peak-to-peak value adjustment time window based on the original peak-to-peak value and a preset target peak-to-peak value; and determining a plurality of actual adjustment multiples of the current peak-to-peak value adjustment time window based on the target adjustment multiple, and sequentially adjusting signal values of the original human biological signal at a plurality of sampling points within the current peak-to-peak value adjustment time window based on the plurality of actual adjustment multiples.
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公开(公告)号：US20240062400A1
公开(公告)日：2024-02-22
申请号：US18088960
申请日：2022-12-27
Applicant: KINGFAR INTERNATIONAL INC.
Inventor： Qichao ZHAO , Ran YANG
IPC: G06T7/55
CPC classification number: G06T7/55 , G06T2207/10004
Abstract: An eye movement analysis method comprises: acquiring a first scene video seen by a target user in a preset environment, and simultaneously acquiring eye movement gaze data of the target user in the environment; performing semantic segmentation on the first scene video based on a deep learning algorithm to obtain a second scene video, wherein the second scene video is divided to have eye movement area of interest; superposing the eye movement gaze data with the second scene video to obtain a gaze pixel point corresponding to the eye movement gaze data in the second scene video; and determining the gaze pixel point corresponding to each frame image in the second scene video and outputting eye movement data index of the target user gazing at the eye movement area of interest in combination with time sequence.
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8.发明公开公开(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.
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公开(公告)号：US20230126200A1
公开(公告)日：2023-04-27
申请号：US18087875
申请日：2022-12-23
Applicant: KINGFAR INTERNATIONAL INC.
Inventor： Qichao ZHAO , Ran YANG
Abstract: The present application relates to a method, apparatus, device, system and storage medium for collecting spatiotemporal behaviors and generating a spatiotemporal behavior track. The method includes: obtaining a first time series containing a plurality of sampling points; taking one sampling point as a current sampling point; setting a window time, and finding a first sampling point and a last sampling point within the window time; taking a first position as a center of a circle, which is a center point of the reality display device corresponding to the current sampling point, and calculating an angular speed between the first sampling point and the last sampling point; if the angular speed is greater than a preset angular speed threshold, taking the current sampling point as a displacement point; processing the plurality of sampling points as described above to obtain a second time series; drawing a moving track map.
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10.发明申请公开(公告)号：US20250165067A1
公开(公告)日：2025-05-22
申请号：US18970970
申请日：2024-12-06
Applicant: KINGFAR INTERNATIONAL INC.
Inventor： Qichao ZHAO , Qingju WANG
Abstract: A method for evaluating and optimizing user experience in human-computer interaction includes: acquiring a multimodal biological signal of a user during human-computer interaction, and preprocessing the multimodal biological signal to extract a fixation position and index parameters of multiple dimensions; standardizing the index parameters, and performing, based on each index parameter and a weight for each index parameter, weighted average to calculate a user experience evaluation score of each dimension; acquiring a weight for the user experience evaluation score, and performing weighted average to calculate an overall user experience evaluation result; visually presenting, based on the overall user experience evaluation result, user experience situation data of the user for a current fixation position; and acquiring a correction parameter of the user, and optimizing, based on the correction parameter, the weights using a machine learning optimization algorithm.
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