Patents by Inventor Wenxi Chen
Wenxi Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11942784Abstract: The present invention discloses a method and device for formulating a coordinated action strategy of SSTS and DVR for voltage sag mitigation. The influence of voltage sag on a whole industrial process of a sensitive user is analyzed, and the sensitive loads of SSTS and DVR which satisfy a governance need are grouped; a practical governance scenario of installing a plurality of DVR is considered to install a minimum-capacity DVR to realize a target of a minimum interruption probability of the whole industrial process of the user; an optimal coordinated governance solution of SSTS and DVR based on sensitive load grouping is proposed; a classification result is obtained for duration time at a time when a voltage sag event occurs through a decision tree constructed based on historical data.Type: GrantFiled: June 24, 2022Date of Patent: March 26, 2024Assignee: Sichuan UniversityInventors: Ying Wang, Man Wang, Xianyong Xiao, Wenxi Hu, Yang Wang, Zixuan Zheng, Yunzhu Chen
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Patent number: 11935596Abstract: In certain aspects, a three-dimensional (3D) memory device includes a first semiconductor structure, a second semiconductor structure, and a bonding interface between the first semiconductor structure and the second semiconductor structure. The first semiconductor structure includes an array of memory cells, a first peripheral circuit of the array of memory cells, and a polysilicon layer between the array of memory cells and the first peripheral circuit. The first peripheral circuit includes a first transistor. The second semiconductor structure includes a second peripheral circuit of the array of memory cells. The second peripheral circuit includes a second transistor.Type: GrantFiled: September 22, 2021Date of Patent: March 19, 2024Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.Inventors: Yanhong Wang, Wei Liu, Liang Chen, Zhiliang Xia, Wenxi Zhou, Kun Zhang, Yuancheng Yang
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Patent number: 11929119Abstract: In certain aspects, a three-dimensional (3D) memory device includes a first semiconductor structure, a second semiconductor structure, a third semiconductor structure, and a first bonding interface between the first semiconductor structure and the second semiconductor structure. The first semiconductor structure includes an array of memory cells. The second semiconductor structure includes a first peripheral circuit of the array of memory cells. The first peripheral circuit includes a first transistor. A third semiconductor structure includes a second peripheral circuit of the array of memory cells. The second peripheral circuit includes a second transistor. The first semiconductor structure, the second semiconductor structure, and the third semiconductor structure are stacked over one another.Type: GrantFiled: September 21, 2021Date of Patent: March 12, 2024Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.Inventors: Liang Chen, Wei Liu, Yanhong Wang, Zhiliang Xia, Wenxi Zhou, Kun Zhang, Yuancheng Yang
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Patent number: 11500975Abstract: An authentication method comprising creating electrocardiogram data of users; calculating a similarity between electrocardiogram data of each user and template data created by averaging electrocardiogram data of each user; creating and training a first NNmodel for every user by using similarities between electrocardiogram data of a user and template data of the same user and similarities between electrocardiogram data of a user and template data of another user, and creating and training second NNmodels for users by using similarities between electrocardiogram data of a user and template data of the user and similarities between electrocardiogram data of the user and template data of another user; and executing a first step in which the similarities calculated using electrocardiogram data for authentication of a user to be authenticated and template data are input to the first NNmodel, and executing a second step in which the similarities are input to the second NNmodels.Type: GrantFiled: December 23, 2019Date of Patent: November 15, 2022Assignees: THE PUBLIC UNIVERSITY CORPORATION, THE UNIVERSITY OF AIZU, SIMPLEX QUANTUM INC.Inventors: Wenxi Chen, Ying Chen, Yuji Hamada
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Publication number: 20200134152Abstract: An authentication method comprising creating electrocardiogram data of users; calculating a similarity between electrocardiogram data of each user and template data created by averaging electrocardiogram data of each user; creating and training a first NNmodel for every user by using similarities between electrocardiogram data of a user and template data of the same user and similarities between electrocardiogram data of a user and template data of another user, and creating and training second NNmodels for users by using similarities between electrocardiogram data of a user and template data of the user and similarities between electrocardiogram data of the user and template data of another user; and executing a first step in which the similarities calculated using electrocardiogram data for authentication of a user to be authenticated and template data are input to the first NNmodel, and executing a second step in which the similarities are input to the second NNmodels.Type: ApplicationFiled: December 23, 2019Publication date: April 30, 2020Inventors: Wenxi CHEN, Ying CHEN, Yuji HAMADA
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Patent number: 6241682Abstract: A pacing-pulse detecting circuit 3 detects pacing pulses from an electrocardiogram signal led from an electrocardiogram electrode 1. A mode-status judging means 21 judges a mode status, a pacing mode or a nonpacing mode, on the basis of the pacing pulse detected. The detect result is transmitted to a CPU 5. The CPU 5 causes a display device 10 to display the result. An operator sees the display and operates a key 22, and gives an instruction to start a blood pressure measurement to the CPU 5. The CPU 5 drives a pump 13 and an exhaust valve 14 to supply and discharge air to and from a cuff 11, and measures a blood pressure by use of pressure data led from a pressure sensor 15.Type: GrantFiled: August 16, 2000Date of Patent: June 5, 2001Assignee: Nihon Kohden CorporationInventors: Ryoichi Ochiai, Yoshihiro Sugo, Takeshi Sohma, Rie Tanaka, Wenxi Chen
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Patent number: 6129677Abstract: An apparatus for non-invasion heart monitoring includes electrocardiogram measuring means (1) for measuring electrocardiograms, pulse wave measuring means (2) for measuring pulse waves, and a CPU (30) for processing electrocardiogram signals derived from the electrocardiogram measuring means (1) and pulse wave signals derived from the pulse-wave measuring means (2). The CPU (30) detects the amplitudes of the pulse waves corresponding to the R waves of the cardiogram and the pulse wave propagation times, and computes a ratio (Nr/N) of the heart rate N and the heart rate Nr exclusive of the heart beats of wave deficits.Type: GrantFiled: August 10, 1998Date of Patent: October 10, 2000Assignee: Nihon Kohden CorporationInventors: Takeshi Sohma, Yoshihiro Sugo, Rie Tanaka, Wenxi Chen, Hiromitsu Kasuya, Kohei Ono
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Patent number: 6122543Abstract: A pacing-pulse detecting circuit 3 detects pacing pulses from an electrocardiogram signal led from an electrocardiogram electrode 1. A mode-status judging means 21 judges a mode status, a pacing mode or a nonpacing mode, on the basis of the pacing pulse detected. The detect result is transmitted to a CPU 5. The CPU 5 causes a display device 10 to display the result. An operator sees the display and operates a key 22, and gives an instruction to start a blood pressure measurement to the CPU 5. The CPU 5 drives a pump 13 and an exhaust valve 14 to supply and discharge air to and from a cuff 11, and measures a blood pressure by use of pressure data led from a pressure sensor 15.Type: GrantFiled: February 17, 2000Date of Patent: September 19, 2000Assignee: Nihon Kohden CorporationInventors: Ryoichi Ochiai, Yoshihiro Sugo, Takeshi Sohma, Rie Tanaka, Wenxi Chen
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Patent number: 6049731Abstract: A pacing-pulse detecting circuit 3 detects pacing pulses from an electrocardiogram signal led from an electrocardiogram electrode 1. A mode-status judging means 21 judges a mode status, a pacing mode or a nonpacing mode, on the basis of the pacing pulse detected. The detect result is transmitted to a CPU 5. The CPU causes a display device 10 to display the result. An operator sees the display and operates a key 22, and gives an instruction to start a blood pressure measurement to the CPU 5. The CPU 5 drives a pump 13 and an exhaust valve 14 to supply and discharge air to and from a cuff 11, and measures a blood pressure by use of pressure data led from a pressure sensor 15.Type: GrantFiled: August 20, 1998Date of Patent: April 11, 2000Assignee: Nihon Kohden CorporationInventors: Ryoichi Ochiai, Yoshihiro Sugo, Takeshi Sohma, Rie Tanaka, Wenxi Chen
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Patent number: 6011989Abstract: An electrocardiogram signal derived from electrocardiogram measuring means 1 and a pulse signal derived from pulse-wave measuring means 2 are applied to a CPU 30. The CPU 30 processes the cardiogram signal to detect a QRS wave signal, and processes the pulse signal to detect the amplitude of the pulse signal. The CPU 30 judges whether or not the QRS wave is caused by a ventricular premature contraction. If two QRS waves, not caused by ventricular premature contraction, occurs successively, and the CPU 30 judges if A0.times.k>A1. The CPU 30 judges that a supraventricular extrasystole is occurred. Here, A0 is an amplitude of the first QSR wave; A1 is an amplitude of the second QSR wave; and k is a preset value, 0<k<1.Type: GrantFiled: August 5, 1998Date of Patent: January 4, 2000Assignee: Nihon Kohden CorporationInventors: Yoshihiro Sugo, Takeshi Sohma, Rie Tanaka, Wenxi Chen, Shigeru Aso, Ryoichi Ochiai
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Patent number: 5755669Abstract: After an initial blood pressure measurement using a cuff 2 has been made, not only a pulse wave propagation time Tt is counted consecutively, but also a pulse wave propagation time change .DELTA.T is calculated every time the pulse wave propagation time Tt is counted and compared with a pulse wave propagation change threshold .DELTA.Ts. When the pulse wave propagation time change .DELTA.T exceeds the pulse wave propagation time change threshold .DELTA.Ts, not only a blood pressure value BPt is measured with the cuff 2, but also a pulse wave propagation time Tt.sub.1 is counted. If there are at least two sets of data, each set of data consisting of a blood pressure value BPt and a pulse wave propagation time Tt.sub.1, coefficients .alpha., .beta. specific to a subject are calculated from such two sets of data by a least-squares method. Then, the pulse wave propagation time change threshold .DELTA.Ts is calculated from the coefficient .alpha., and the current pulse wave propagation time change threshold .DELTA.Type: GrantFiled: April 30, 1997Date of Patent: May 26, 1998Assignee: Nihon Kohden CorporationInventors: Kohei Ono, Hiromitsu Kasuya, Yoshihiro Sugo, Takeshi Sohma, Wenxi Chen