Patents by Inventor Yanfei CHEN
Yanfei 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).
-
Patent number: 11985780Abstract: Disclosed are an electronic device, an expansion card assembly and a server device. The electronic device comprises a hard disk slot and the expansion card assembly. The expansion card assembly is arranged in the hard disk slot in a pluggable manner; the hard disk slot comprises a first type of interface and a second type of interface. The first type of interface is used for communicating with the hard disk, and the second type of interface is used for communicating with the expansion card assembly. Therefore, the expansion card assembly is expanded by means of the hard disk slot in the electronic device, so that the expansion requirement of the expansion card assembly is met.Type: GrantFiled: July 25, 2019Date of Patent: May 14, 2024Assignee: HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD.Inventors: Honghai Zhang, Yanfei Zhang, Jie Yan, Chuan Chen, Rui Chen
-
Patent number: 11959900Abstract: A health early warning system for passengers on a train in an outdoor air polluted environment and a method thereof are provided. The system comprises an air quality monitoring station data acquisition module, a train data acquisition module, a train air pollution prediction module, and a train air environment early warning module; the air quality monitoring station data acquisition module acquires data of air quality monitoring stations and uploads the data to the train air pollution prediction module; the train data acquisition module acquires data of the train and uploads the data to the train air pollution prediction module; the train air pollution prediction module performs short-term prediction on air pollution of the train and uploads a result of the short-term prediction to the train air environment early warning module; and the train air environment early warning module performs early warning on the health of the passengers on the train.Type: GrantFiled: July 13, 2020Date of Patent: April 16, 2024Assignee: Central South UniversityInventors: Hui Liu, Haiping Wu, Yanfei Li, Chao Chen
-
Patent number: 11938784Abstract: A health protection system and a method for passengers on a train in a polluted indoor environment are provided. The health protection system includes a basic data acquisition module, an outdoor air quality prediction module, an indoor air quality prediction module, and a ventilation strategy generation module, wherein the basic data acquisition module acquires basic data; the outdoor air quality prediction module predicts outdoor air quality of the train; the indoor air quality prediction module predicts indoor air quality of the train; and the ventilation strategy generation module generates a ventilation strategy and achieves health protection of the passengers on the train. The method includes: predicting indoor and outdoor air quality data information of the train according to the acquired indoor and outdoor air quality data of the train; and generating a corresponding ventilation strategy according to the indoor and outdoor air quality data of the train.Type: GrantFiled: July 13, 2020Date of Patent: March 26, 2024Assignee: Central South UniversityInventors: Hui Liu, Chao Chen, Zhu Duan, Yanfei Li
-
Patent number: 11923857Abstract: Embodiments herein describe correcting nonlinearity in a Digital-to-Time Converter (DTC) by relaxing a DTC linearity requirement, which results in the correction being co-adapted with a DTC gain calibration loop which can operate in parallel with a DTC integral nonlinearity (INL) correction loop. In one embodiment, the DTC gain calibration loop and the DTC INL correction loop are constrained when determining a nonlinearity correction code to improve the likelihood they converge. Once determined, the nonlinearity correction code can be combined with an digital code output by a time-to-digital converter (TDC) to generate a phase difference between a reference clock and a feedback clock.Type: GrantFiled: January 26, 2023Date of Patent: March 5, 2024Assignee: XILINX, INC.Inventors: Hongtao Zhang, Ankur Jain, Yanfei Chen, Ronan Sean Casey, Winson Lin, Hsung Jai Im
-
Publication number: 20240072534Abstract: A start method for a photovoltaic rapid shutdown system, an application apparatus and a system. In the method, an inverter system controls the voltage change of a corresponding direct current bus in a photovoltaic rapid shutdown system; and a photovoltaic module shutdown device performs determination according to a measured output voltage of itself, and controls itself to be turned on when the change characteristic of the voltage of the direct current bus connected to itself satisfies a preset turn-on condition. Therefore, merely by means of a self-contained voltage sampling device, the photovoltaic module shutdown device can determine whether a turn-on signal is received, without additionally providing a corresponding receiving device, thereby reducing hardware cost of the photovoltaic module shutdown device while realizing communication between the photovoltaic module shutdown device and the outside.Type: ApplicationFiled: January 10, 2022Publication date: February 29, 2024Applicant: Sungrow Power Supply Co., Ltd.Inventors: Yu Yang, Yanfei Yu, Jun Xu, Qiaodi Chen
-
Publication number: 20230346220Abstract: A contactless vital signs monitoring system is installed on a mattress and includes a contactless vital signs signal acquisition and processing system. The contactless vital signs signal acquisition and processing system includes a BCG signal acquisition module, a human body pressure acquisition module and a control circuit. A piezoelectric ceramic array is arranged on the mattress to serve as the BCG signal acquisition module, a resistance-type pressure belt is arranged on the mattress to serve as the human body pressure acquisition module, and in combination with an intelligent dynamic wave peak tracing algorithm, heart rate data, respiration data, body movement data, on-bed/off-bed condition and abnormal sound data of a user in a sleep process can be extracted, and a sleep condition of the user can be comprehensively analyzed. The contactless vital signs monitoring system operates in an intelligent ultralow power consumption operation control mode, thus energy consumption is greatly reduced.Type: ApplicationFiled: April 25, 2023Publication date: November 2, 2023Inventors: Shihua Cao, Yuchao Le, Zheng Chen, Danni He, Yanfei Chen, Beiying Qian
-
Patent number: 11794383Abstract: Disclosed is a material with directional thermal conduction and thermal insulation and a preparation method thereof. The method includes: (1) dispersing a viscose-based carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion I; dispersing a high-thermal conduction carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion II; (2) dividing equally the dispersion I and the dispersion II into several parts, respectively, pouring each part of the dispersion I and each part of the dispersion II into a mold alternately until all the dispersion I and the dispersion II are poured, draining after each pouring of a part of the dispersion I or a part of the dispersion II to obtain a porous carbon fiber skeleton, and solidifying the skeleton to obtain a preform; (3) subjecting the preform to a heat treatment to obtain the material.Type: GrantFiled: August 1, 2022Date of Patent: October 24, 2023Assignee: Beijing Institute of TechnologyInventors: Baosheng Xu, Chenqi Wang, Lijie Qu, Yanfei Chen, Daining Fang, Yazheng Yang
-
Patent number: 11766557Abstract: A neck-hanging massaging device includes an elastic arm, a first handle, a second handle, an electrode assembly and an electric pulse generating device. The first handle and the second handle are fixedly connected to the two sides of the elastic arm. The electrode assembly is arranged on the elastic arm. The electric pulse generating device is electrically connected with the electrode assembly. The electric pulse generating device is arranged in the first handle.Type: GrantFiled: May 18, 2022Date of Patent: September 26, 2023Assignee: Guangdong SKG Intelligent Technology Co., Ltd.Inventors: Jie Liu, Zhiguo Wang, Hua Xiao, Yanfei Chen
-
Patent number: 11738190Abstract: A neck-hanging massaging device includes an elastic arm, a first handle, a second handle, an electrode assembly and an electric pulse generating device. The first handle and the second handle are fixedly connected to the two sides of the elastic arm. The electrode assembly is arranged on the elastic arm. The electric pulse generating device is electrically connected with the electrode assembly. The electric pulse generating device is arranged in the first handle.Type: GrantFiled: May 18, 2022Date of Patent: August 29, 2023Assignee: Guangdong SKG Intelligent Technology Co., Ltd.Inventors: Jie Liu, Zhiguo Wang, Hua Xiao, Yanfei Chen
-
Publication number: 20230249382Abstract: Disclosed is a material with directional thermal conduction and thermal insulation and a preparation method thereof. The method includes: (1) dispersing a viscose-based carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion I; dispersing a high-thermal conduction carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion II; (2) dividing equally the dispersion I and the dispersion II into several parts, respectively, pouring each part of the dispersion I and each part of the dispersion II into a mold alternately until all the dispersion I and the dispersion II are poured, draining after each pouring of a part of the dispersion I or a part of the dispersion II to obtain a porous carbon fiber skeleton, and solidifying the skeleton to obtain a preform; (3) subjecting the preform to a heat treatment to obtain the material.Type: ApplicationFiled: August 1, 2022Publication date: August 10, 2023Inventors: Baosheng XU, Chenqi WANG, Lijie QU, Yanfei CHEN, Daining FANG, Yazheng YANG
-
Patent number: 11712555Abstract: A neck-hanging massaging device includes an elastic arm, a first handle, a second handle, an electrode assembly and an electric pulse generating device. The first handle and the second handle are fixedly connected to the two sides of the elastic arm. The electrode assembly is arranged on the elastic arm. The electric pulse generating device is electrically connected with the electrode assembly. The electric pulse generating device is arranged in the first handle.Type: GrantFiled: May 18, 2022Date of Patent: August 1, 2023Assignee: Guangdong SKG Intelligent Technology Co., Ltd.Inventors: Jie Liu, Zhiguo Wang, Hua Xiao, Yanfei Chen
-
Method and system to prevent identity theft for fingerprint recognition enabled touch screen devices
Patent number: 11663850Abstract: The disclosure facilitates fingerprint recognition, user authentication, and prevention of loss of control of personal information and identity theft. The disclosure also facilitates identifying spoofed fingerprint authentication attempts, and/or securing user touch sensitive devices against spoofed fingerprint authentication attempts.Type: GrantFiled: November 24, 2021Date of Patent: May 30, 2023Assignee: Qeexo, Co.Inventors: Yanfei Chen, Hasan. M. Masoud Smeir, Rajen Bhatt, Christopher Harrison, Sang Won Lee -
Patent number: 11432731Abstract: The invention relates to endovascular medical implant devices, systems and methods that including a sensing device and a flow diverter device, which are effective to monitor intra-/post-operative hemodynamic properties in the location of a cerebral aneurysm and, hemodynamic alterations following placement of the system for treating ischemic diseases in carotid, coronary and peripheral arteries. The sensing device includes wireless, non-thrombogenic, highly stretchable, ultra-low profile flow sensors.Type: GrantFiled: May 26, 2017Date of Patent: September 6, 2022Assignees: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION, VIRGINIA COMMONWEALTH UNIVERSITYInventors: Young Jae Chun, Brian T. Jankowitz, Sung Kwon Cho, Yanfei Chen, Woon-Hong Yeo, Yongkuk Lee, Connor Howe
-
Publication number: 20220273941Abstract: A neck-hanging massaging device includes an elastic arm, a first handle, a second handle, an electrode assembly and an electric pulse generating device. The first handle and the second handle are fixedly connected to the two sides of the elastic arm. The electrode assembly is arranged on the elastic arm. The electric pulse generating device is electrically connected with the electrode assembly. The electric pulse generating device is arranged in the first handle.Type: ApplicationFiled: May 18, 2022Publication date: September 1, 2022Applicant: Guangdong SKG Intelligent Technology Co., Ltd.Inventors: Jie LIU, Zhiguo WANG, Hua XIAO, Yanfei CHEN
-
Publication number: 20220273942Abstract: A neck-hanging massaging device includes an elastic arm, a first handle, a second handle, an electrode assembly and an electric pulse generating device. The first handle and the second handle are fixedly connected to the two sides of the elastic arm. The electrode assembly is arranged on the elastic arm. The electric pulse generating device is electrically connected with the electrode assembly. The electric pulse generating device is arranged in the first handle.Type: ApplicationFiled: May 18, 2022Publication date: September 1, 2022Applicant: Guangdong SKG Intelligent Technology Co., Ltd.Inventors: Jie LIU, Zhiguo WANG, Hua XIAO, Yanfei CHEN
-
Publication number: 20220273940Abstract: A neck-hanging massaging device includes an elastic arm, a first handle, a second handle, an electrode assembly and an electric pulse generating device. The first handle and the second handle are fixedly connected to the two sides of the elastic arm. The electrode assembly is arranged on the elastic arm. The electric pulse generating device is electrically connected with the electrode assembly. The electric pulse generating device is arranged in the first handle.Type: ApplicationFiled: May 18, 2022Publication date: September 1, 2022Applicant: Guangdong SKG Intelligent Technology Co., Ltd.Inventors: Jie LIU, Zhiguo WANG, Hua XIAO, Yanfei CHEN
-
Patent number: 11357973Abstract: A neck-hanging massaging device includes an elastic arm, a first handle, a second handle, an electrode assembly and an electric pulse generating device. The first handle and the second handle are fixedly connected to the two sides of the elastic arm. The electrode assembly is arranged on the elastic arm. The electric pulse generating device is electrically connected with the electrode assembly. The electric pulse generating device is arranged in the first handle.Type: GrantFiled: March 9, 2020Date of Patent: June 14, 2022Assignee: Guangdong SKG Intelligent Technology Co., Ltd.Inventors: Jie Liu, Zhiguo Wang, Hua Xiao, Yanfei Chen
-
METHOD AND SYSTEM TO PREVENT IDENTITY THEFT FOR FINGERPRINT RECOGNITION ENABLED TOUCH SCREEN DEVICES
Publication number: 20220083761Abstract: The disclosure facilitates fingerprint recognition, user authentication, and prevention of loss of control of personal information and identity theft. The disclosure also facilitates identifying spoofed fingerprint authentication attempts, and/or securing user touch sensitive devices against spoofed fingerprint authentication attempts.Type: ApplicationFiled: November 24, 2021Publication date: March 17, 2022Applicant: QEEXO, CO.Inventors: Yanfei Chen, Hasan.M.Masoud Smeir, Rajen Bhatt, Christopher Harrison, Sang Won Lee -
Method and system to prevent identity theft for fingerprint recognition enabled touch screen devices
Patent number: 11216638Abstract: The disclosure facilitates fingerprint recognition, user authentication, and prevention of loss of control of personal information and identity theft. The disclosure also facilitates identifying spoofed fingerprint authentication attempts, and/or securing user touch sensitive devices against spoofed fingerprint authentication attempts.Type: GrantFiled: May 9, 2019Date of Patent: January 4, 2022Assignee: QEEXO, CO.Inventors: Yanfei Chen, Hasan.M.Masoud Smeir, Rajen Bhatt, Christopher Harrison, Sang Won Lee -
Patent number: 10942603Abstract: Techniques that can improve efficiency of a touch sensitive device are presented. A touch controller (TC) can comprise a hover classification engine and an application processor (AP) can comprise a touch classification engine usable to classify touch or hover interactions of an object(s) with a touch sensitive surface (TSS) of the device. In response to classifying a touch or hover interaction with TSS as unintentional, AP can reject such interaction and can transition from an active state to an inactive state. TC can continue to monitor touch or hover interactions with TSS. In response to determining there is an intentional touch interaction with TS S or no unintentional face/ear interaction with TSS, TC can transmit a notification signal to AP. In response to the notification signal, AP can transition from the inactive state to active state, and can process the intentional touch interaction or monitor the TSS.Type: GrantFiled: May 6, 2019Date of Patent: March 9, 2021Assignee: QEEXO, CO.Inventors: Joshua Dale Stone, Yanfei Chen, Shyama Purnima Dorbala, Bo Robert Xiao