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公开(公告)号：US11212672B2
公开(公告)日：2021-12-28
申请号：US17036222
申请日：2020-09-29
Inventor： Fangmin Sun , Ye Li
IPC: H04M1/66 , H04M1/68 , H04M3/16 , H04W12/0431 , H04W4/80 , H04W12/041 , H04L9/08 , H04W12/037
Abstract: The embodiments of the present disclosure are applicable to the technical field of computer science and application technology, and disclose a wireless body area network, a key generation method and a key distribution method in the wireless body area network, and a related device. The gait acceleration signal is extracted synchronously through the respective acceleration acquisition devices integrated with the coordinator and the wearable equipment, the position information corresponding to the peak value and the valley value in the gait acceleration signal is correspondingly extracted and is taken as the gait common information, and the gait common information is used to perform key distribution in the wireless body area network, the security and the consistency are higher, the calculation is simplified, the key distribution method is suitable for wearable devices having limited resources.
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公开(公告)号：US11538588B2
公开(公告)日：2022-12-27
申请号：US16901033
申请日：2020-06-15
Inventor： Ye Li , Xiaomao Fan , Qihang Yao , Liyan Yin
Abstract: The present disclosure provides an atrial fibrillation signal recognition method, apparatus and device. The method comprises: obtaining an electrocardiogram signal to be recognized; inputting the electrocardiogram signal to be recognized to a pre-established atrial fibrillation signal recognition model, and outputting an atrial fibrillation signal recognition result, where the atrial fibrillation signal recognition model is established in the following way: obtaining a specified number of electrocardiogram sample signals and corresponding identifier information; balancing, according to the number of normal signals, atrial fibrillation signals by means of SMOTE; establishing a network structure of multiple convolutional neural networks, each of the convolutional neural networks being provided with a specific receptive field for recognizing the atrial fibrillation signals of a corresponding granularity; and inputting the normal signals and the balanced atrial fibrillation signals to the network structure for training to generate an atrial fibrillation signal recognition model.
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公开(公告)号：US20190195972A1
公开(公告)日：2019-06-27
申请号：US16261610
申请日：2019-01-30
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
Inventor： Ye Li , Qiaoyan Chen , Rou Li , Chao Luo , Jianhong Wen , Chao Zou , Xin Liu
CPC classification number: G01R33/3875 , A61B5/055 , A61B17/320068 , A61B2017/320069 , G01R33/443 , G01R33/4814 , G01R33/543
Abstract: A local shimming system for magnetic resonance imaging and the method thereof, wherein the shimming method comprises the following steps: collecting B0 field map information using two-dimensional gradient echo (301); calculating and evaluating the homogeneity of B0 (302); optimizing the current of each channel shim coil (303); determining whether the minimum standard deviation value of Δf is obtained (304); outputting an optimal current combination values and setting an optimum current value corresponding to each channel of the shim coil on the current control software (305); and testing and evaluating the homogeneity of B0 to achieve the shimming goal (306).
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公开(公告)号：US12092714B2
公开(公告)日：2024-09-17
申请号：US17992868
申请日：2022-11-22
Inventor： Hairong Zheng , Qiaoyan Chen , Ye Li , Chao Luo , Xin Liu
IPC: G01R33/3875 , A61B5/055
CPC classification number: G01R33/3875 , A61B5/055
Abstract: A shimming method and device, an electronic device, and a storage medium are disclosed. The shimming method includes: obtaining object static magnetic field distribution information corresponding to a target object, the object static magnetic field distribution information including the static magnetic field distribution information of the target object under the action of a main magnet of a magnetic resonance system; determining a target static magnetic field based on the object static magnetic field distribution information and a preset shim coil magnetic field distribution model; and adjusting at least one shim coil parameter in the shim coil magnetic field distribution model until a magnetic field uniformity of the target static magnetic field satisfies a preset condition, and accordingly obtaining at least one target shim coil parameter.
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公开(公告)号：US20230204697A1
公开(公告)日：2023-06-29
申请号：US17921465
申请日：2020-07-23
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
Inventor： Ye Li , Feng DU , Nan Li , Xing Yang , Qiaoyan Chen , Xin Liu , Hairong Zheng
IPC: G01R33/36 , G01R33/3415
CPC classification number: G01R33/3635 , G01R33/3415
Abstract: Provided is a quad-core radio-frequency coil circuit. The quad-core radio-frequency coil circuit includes a coil module (1) and a front-end module (2). The coil module (1) is configured to receive a nuclear magnetic test signal and, according to the nuclear magnetic test signal, generate an induction signal. The front-end module (2) is connected to the coil module (1) and configured to generate the nuclear magnetic test signal and collect the induction signal.
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Patent Agency Ranking
公开(公告)号：US11378636B2
公开(公告)日：2022-07-05
申请号：US17032588
申请日：2020-09-25
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
Inventor： Ye Li , Qiaoyan Chen , Jo Lee , Chao Luo , Jianhong Wen , Chao Zou , Xin Liu
Abstract: A shimming system for magnetic resonance imaging is provided, which includes: a multi-channel local shim coil unit configured to be installed on an inspection table of a magnetic resonance imaging system, where the multi-channel local shim coil unit includes a local multi-channel shim coil and a radio frequency receiving coil for receiving magnetic resonance signals, and the radio frequency receiving coil is placed inside the local multi-channel shim coil and separated by a distance from the local multi-channel shim coil; a computer control system configured to install and set software controlled by a DC power and calculate field maps and calculate optimization processes; a DC power system communicatively connected to the computer control system to control a value of current of each channel; and a housing having a semi-cylindrical configuration, where the local multi-channel shim coil is only distributed on a semi-cylindrical surface of the semi-cylindrical configuration of the housing.
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公开(公告)号：US10884080B2
公开(公告)日：2021-01-05
申请号：US16348917
申请日：2018-10-26
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
Inventor： Hairong Zheng , Ye Li , Qiaoyan Chen , Feng Du , Nan Li , Jo Lee , Chao Luo , Qiang He , Xin Liu
Abstract: A dual-nuclear radio frequency (RF) coil device includes a first RF coil and a second RF coil. The first RF coil includes at least one adjustment capacitor, the first RF coil is configured to generate a first magnetic field, and a direction of a primary magnetic field of the first magnetic field is a first direction. The second RF coil includes an electric dipole and a tuning and matching circuit connected between two conductors of the electric dipole. The second RF coil is configured to generate a second magnetic field and a direction of a primary magnetic field of the second magnetic field is a second direction; the electric dipole is disposed in a center line of the first RF coil and an insulating layer is disposed between the electric dipole and the first RF coil; and the first direction is perpendicular to the second direction.
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公开(公告)号：US10743789B2
公开(公告)日：2020-08-18
申请号：US15739719
申请日：2017-11-28
Inventor： Ye Li , Xiaomao Fan , Yunpeng Cai , Qihang Yao , Yujie Yang
IPC: A61B5/0452 , A61B5/04 , A61B5/0472 , A61B5/00 , A61B5/0404 , G16H50/20 , A61B5/0432 , A61B5/0245 , A61B5/0456
Abstract: Provided are an electrocardiogram signal parallel analysis apparatus, a mobile terminal incorporating the apparatus, and related methods. The apparatus includes an integrated memory, a central processing unit and a graphic processing unit. The integrated memory includes a first memory and a second memory for being used by the central processing unit and the graphic processing unit respectively, and the central processing unit may access the second memory. The central processing unit performs primary noise reduction on a received electrocardiogram original signal to obtain a primary electrocardiogram signal, and performs abnormal heartbeat classification preliminary screening on characteristic data extracted from the graphic processing unit to obtain suspected abnormal heartbeat data. The graphic processing unit performs characteristic extraction on the primary electrocardiogram signal to obtain characteristic data, performs secondary noise reduction on the primary electrocardiogram signal to obtain a secondary electrocardiogram signal, and processes the suspected abnormal heartbeat data and the secondary electrocardiogram signal by applying a template matching classification mode to obtain final abnormal heartbeat data.
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公开(公告)号：US12276713B2
公开(公告)日：2025-04-15
申请号：US17921465
申请日：2020-07-23
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
Inventor： Ye Li , Feng Du , Nan Li , Xing Yang , Qiaoyan Chen , Xin Liu , Hairong Zheng
IPC: G01R33/36 , G01R33/3415
Abstract: Provided is a quad-core radio-frequency coil circuit. The quad-core radio-frequency coil circuit includes a coil module (1) and a front-end module (2). The coil module (1) is configured to receive a nuclear magnetic test signal and, according to the nuclear magnetic test signal, generate an induction signal. The front-end module (2) is connected to the coil module (1) and configured to generate the nuclear magnetic test signal and collect the induction signal.
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公开(公告)号：US10969449B2
公开(公告)日：2021-04-06
申请号：US16261610
申请日：2019-01-30
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
Inventor： Ye Li , Qiaoyan Chen , Jo Lee , Chao Luo , Jianhong Wen , Chao Zou , Xin Liu
Abstract: A local shimming system for magnetic resonance imaging and the method thereof, wherein the shimming method comprises the following steps: collecting B0 field map information using two-dimensional gradient echo (301); calculating and evaluating the homogeneity of B0 (302); optimizing the current of each channel shim coil (303); determining whether the minimum standard deviation value of Δf is obtained (304); outputting an optimal current combination values and setting an optimum current value corresponding to each channel of the shim coil on the current control software (305); and testing and evaluating the homogeneity of B0 to achieve the shimming goal (306).
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