公开(公告)号：US20240037992A1

公开(公告)日：2024-02-01

申请号：US18244225

申请日：2023-09-09

Applicant: SOUTHEAST UNIVERSITY

Inventor： Xinde LI ,  Chuanfei HU

IPC: G06V40/20 ,  G06V20/40 ,  G06V20/70 ,  G06T7/73 ,  G06V10/80 ,  G06V10/776 ,  G06V10/774

CPC classification number: G06V40/20 ,  G06V20/41 ,  G06V20/70 ,  G06T7/74 ,  G06V10/806 ,  G06V20/46 ,  G06V10/776 ,  G06V10/774 ,  G06T2207/10016 ,  G06T2207/30196

Abstract: An emotion recognition method includes the following steps: acquiring video data of a human-object interaction behavior process; performing data labeling on the positions of a person and an object and the interaction behaviors and emotions expressed by the person; constructing a feature extraction model based on deep learning, extracting features of interaction between the person and the object in a time-space dimension, and detecting the position and category of the human-object interaction behavior; mapping the detected interaction behavior category into a vector form through a word vector model; and finally, constructing a fusion model based on deep learning, fusing the interaction behavior vector and the time-space interaction behavior features, and identifying the emotion expressed by the interaction person.

公开(公告)号：US11835344B2

公开(公告)日：2023-12-05

申请号：US18253858

申请日：2022-10-10

Applicant: SOUTHEAST UNIVERSITY

Inventor： Xianghong Cheng ,  Peng Ding

IPC: G01C21/30 ,  G01C21/16 ,  G06F17/16

CPC classification number: G01C21/30 ,  G01C21/165 ,  G06F17/16

Abstract: To obtain a global optimal navigation track, a contour line matching method based on sliding window data backtracking includes the steps of determining sliding window parameters according to the calculation performance of a real-time multi-task operating system and aided navigation precision requirements, constructing a sliding window data backtracking framework by using historical physical field value matching data, obtaining a rotation transformation matrix from an indication track point set to a closest reference point set by adopting a matrix eigenvalue and eigenvector decomposition method, and moving a sliding window and performing forward and reverse cyclic matching to achieve a global track constraint, thereby improving the matching precision and robustness.

公开(公告)号：US20230359448A1

公开(公告)日：2023-11-09

申请号：US18223724

申请日：2023-07-19

Applicant: SOUTHEAST UNIVERSITY

Inventor： Wei GE ,  Chongyang LI ,  Qingxiao ZHOU ,  Yanhong XU

IPC: G06F8/41

CPC classification number: G06F8/443 ,  G06F8/433

Abstract: The present disclosure provides an interpreter of a reconfigurable cryptographic algorithm based on customized high-level C language, in the field of information security. The interpreter includes an input program of cryptographic algorithm customized language, a compilation optimization module, an intermediate file and data flow graph generation module, a mapping module and an array generation configuration code module. The disclosure provides an automatic mapping tool for the reconfigurable processor, which can take customized high-level C language as input, and the interpreter arranges and connects computing units like operators according to the input high-level C program, to complete the mapping of the whole computing function. This can shorten the development cycle of the reconfigurable system, reduce the hardware mastery requirements for users, map the computing units of different parts to the reconfigurable processor in a more optimized way, and effectively enhance the performance of the reconfigurable processor.

公开(公告)号：US11770076B2

公开(公告)日：2023-09-26

申请号：US17420866

申请日：2020-06-19

Applicant: SOUTHEAST UNIVERSITY ,  CSMC TECHNOLOGIES FAB2 CO., LTD.

Inventor： Shen Xu ,  Minggang Chen ,  Wanqing Yang ,  Dejin Wang ,  Rui Jiang ,  Weifeng Sun ,  Longxing Shi

IPC: H02M3/335 ,  H02M1/38 ,  H02M1/34

CPC classification number: H02M3/33569 ,  H02M1/342 ,  H02M1/38 ,  H02M3/33523

Abstract: Disclosed are a system and method for controlling an active clamp flyback (ACF) converter. The system includes: a drive module configured to control turning-on or turning-off of a main switching transistor SL and a clamp switching transistor SH; a main switching transistor voltage sampling circuit configured to sample a voltage drop between an input terminal and an output terminal of the main switching transistor SL; a first comparator connected to the main switching transistor voltage sampling circuit and configured to determine whether a sampled first sampling voltage is a positive voltage or a negative voltage; and a dead time calculation module configured to adjust, according to an output of the first comparator and a main switching transistor control signal DUTYL of a current cycle, a clamp switching transistor control signal DUTYH of next cycle outputted by the drive module.

公开(公告)号：US11760635B2

公开(公告)日：2023-09-19

申请号：US18010383

申请日：2021-12-20

Applicant: SOUTHEAST UNIVERSITY

Inventor： Huiyan Zhang ,  YIhan Wang ,  Xiaodi Li

IPC: C01B32/15 ,  B01J19/12 ,  C01B3/26 ,  C01B32/05

CPC classification number: C01B32/05 ,  B01J19/126 ,  C01B3/26 ,  B01J2219/1218 ,  C01P2004/16 ,  C01P2004/64

Abstract: The present disclosure relates to a system and a method for preparing carbon nanofiber and hydrogen through continuous microwave pyrolysis. The system includes four apparatus. The melting and feeding apparatus is to heat and melt feedstocks. The microwave pyrolysis apparatus is for catalytic pyrolysis and includes a feedstock inlet, a gas outlet and a carbon outlet. The gas purification and utilization apparatus is for hydrogen purification and residual gas separation, The power generation apparatus includes a generator and a small internal combustion engine utilizing residual gas as fuel, and the generated smoke is conveyed to the melting and feeding apparatus for feedstocks melting. According to the present disclosure, a poly-generation system for co-producing high-performance carbon materials and hydrogen through plastic wastes with greatly increased energy utilization rate is formed to solve the technical problems of low product yield and high energy consumption in traditional pyrolysis.

公开(公告)号：US11742423B2

公开(公告)日：2023-08-29

申请号：US17761510

申请日：2020-08-20

Applicant: SOUTHEAST UNIVERSITY ,  CSMC TECHNOLOGIES FAB2 CO., LTD.

Inventor： Jing Zhu ,  Guichuang Zhu ,  Nailong He ,  Sen Zhang ,  Shaohong Li ,  Weifeng Sun ,  Longxing Shi

IPC: H01L29/78 ,  H01L29/08 ,  H01L29/10

CPC classification number: H01L29/7824 ,  H01L29/086 ,  H01L29/0878 ,  H01L29/1095

Abstract: A laterally double-diffused metal oxide semiconductor device is provided, including: a drift region (3) having a first conductivity type; a first body region (10) disposed on the drift region (3) and having a second conductivity type, the first conductivity type and the second conductivity type being opposite conductivity types; a first conductivity type region (13) disposed in the first body region (10); a second body region (12) disposed in the first conductivity type region (13) and having the second conductivity type; a source region (11) disposed in the second body region (12) and having the first conductivity type; and a contact region (9) disposed in the first body region (10) and having the second conductivity type.

公开(公告)号：US11703469B2

公开(公告)日：2023-07-18

申请号：US18008722

申请日：2021-10-13

Applicant: SOUTHEAST UNIVERSITY

Inventor： Rui Xiao ,  Yuyang Fan ,  Chao Liu ,  Ming Lei ,  Xiangchen Kong ,  Weicong Xu

IPC: G01N24/10 ,  C10G1/00

CPC classification number: G01N24/10 ,  C10G1/002 ,  C10G2300/1014 ,  C10G2300/201

Abstract: The present invention discloses a rapid evaluation method for quality of lignin-pyrolyzed bio-oil and an application thereof, and particularly relates to a rapid evaluation method for quality of lignin-pyrolyzed bio-oil based on radical detection and an application thereof. The method can be used to evaluate the quality of lignin-pyrolyzed bio-oil by detecting the spin concentration of radicals in lignin char obtained by lignin pyrolysis, thus avoiding the complex processes involved in the evaluation for the quality of conventional pyrolyzed bio-oils such as, extraction, separation and detection and reducing the detection costs substantially. The detection method of the present invention is simple and easy to operate, thus achieving the rapid evaluation for the quality of lignin-pyrolyzed bio-oil. Moreover, the detection method of the present invention is non-contact detection without destructive samples, which is applicable to the rapid detection on the quality of lignin-pyrolyzed bio-oil in the field of industry and scientific research. The present invention further broadens the application fields of radical detection and contributes to the development of radical detection technology in the field of pyrolysis, and provides a reliable method for the detection of lignin-pyrolyzed bio-oil, which has good application prospect.

公开(公告)号：US11686860B2

公开(公告)日：2023-06-27

申请号：US17233555

申请日：2021-04-19

Applicant: SOUTHEAST UNIVERSITY

Inventor： Xianwen Yu

IPC: G01S19/44

CPC classification number: G01S19/44

Abstract: The present disclosure discloses a method for quickly acquiring a highly reliable integer solution for satellite positioning. The method includes: acquiring observation data by a data computing platform from a GNSS receiver; establishing a GNSS carrier observation equation; solving a real solution for ambiguity and the corresponding variance matrix, a real solution for other unknown parameters including positioning parameters and the corresponding variance matrix, and a covariance matrix of the and by using the least squares method; determining integer vectors with the same dimension as the ambiguity according to a given reliability probability; computing a posterior weighted probability with the integer vectors being the true value of the ambiguity; computing an integer solution for other unknown parameters including positioning parameters by using the posterior weighted probability; computing a variance matrix of the integer solution for other unknown parameters; and outputting a computed result by the data computing platform.

公开(公告)号：US20230190654A1

公开(公告)日：2023-06-22

申请号：US16462172

申请日：2018-09-21

Applicant: SOUTHEAST UNIVERSITY

Inventor： Bicheng LIU ,  Taotao TANG ,  Linli LV

IPC: A61K9/127 ,  A61K31/573 ,  A61K9/50 ,  A61P13/12 ,  A61P29/00 ,  A61P37/06

CPC classification number: A61K9/1278 ,  A61K31/573 ,  A61K9/5068 ,  A61P13/12 ,  A61P29/00 ,  A61P37/06

Abstract: It discloses a dexamethasone-loaded macrophage-derived microvesicle as well as a preparation method and application thereof. The dexamethasone-loaded macrophage-derived microvesicle is formed by entrapping dexamethasone with a microvesicle derived from a murine macrophage cell line 264.7 cell. The dexamethasone-loaded macrophage-derived microvesicle of the present invention can be taken up by an injured cell more effectively, and fulfills the aim of ameliorating the kidney inflammation by inhibiting the activation of a proinflammatory signal pathway and infiltration of inflammatory cells. Meanwhile, the preparation method of the present invention is simple, convenient and efficient, and the prepared microvesicle is derived from the RAW 264.7 cells which are sufficient and widespread, and can be produced in large-scale.

公开(公告)号：US11664013B2

公开(公告)日：2023-05-30

申请号：US17112287

申请日：2020-12-04

Applicant: SOUTHEAST UNIVERSITY

Inventor： Weiwei Shan

IPC: G10L15/02 ,  G10L15/08 ,  G10L15/16

CPC classification number: G10L15/08 ,  G10L15/02 ,  G10L15/16 ,  G10L2015/088

Abstract: It discloses a speech feature reuse-based storing and calculating compression method for a keyword-spotting CNN, and belongs to the technical filed of calculating, reckoning or counting. If the updated row number of input data is equal to a convolution step size, every time new input data arrive, an input layer of a neural network replaces the earliest part of the input data with the new input data and meanwhile adjusts an addressing sequence of the input data, thereby performing an operation on the input data and corresponding convolution kernels in an arrival sequence of the input data, and an operation result is stored in an intermediate data memory of the neural network to update corresponding data.