Patents by Inventor Yawen Liu
Yawen Liu 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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Publication number: 20240144723Abstract: The present disclosure discloses an advanced mental fatigue early warning system, electronic device and storage medium, including a data acquisition module, a preprocessing module, an adjustment ability calculation module, a fatigue early warning module, a communication module and a storage module; the data acquisition module is configured for obtaining pupil diameter data; the preprocessing module is configured for preprocessing the pupil diameter data, removing invalid data, and performing linear interpolation; the adjustment ability calculation module is configured for performing calculation and correcting the preprocessed pupil diameter data; the fatigue early warning module is configured for performing mathematical modeling, establishing an advanced prediction model, and calculating a remaining time for an upcoming mental fatigue occurs and issuing an alarm; the communication module is configured for uploading mental fatigue adjustment abilities and alarm methods; the storage module is configured for arcType: ApplicationFiled: November 2, 2023Publication date: May 2, 2024Applicant: Air Force Medical UniversityInventors: Kangning Xie, Yan Li, Chi Tang, Erping Luo, Yawen Zhai, Jiaojiao Ma, Juan Liu, Da Jing, Zedong Yan
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Patent number: 11931208Abstract: The present application discloses a cerebral perfusion state classification apparatus and method, a device, and a storage medium. The method includes: acquiring, by a transceiving module, cervical blood flow data from an ultrasound data collecting device; determining, by a processor, cerebral perfusion data corresponding to the cervical blood flow data based on the cervical blood flow data and a mapping relationship between the cervical blood flow data and the cerebral perfusion data, and classifying cerebral perfusion states of a plurality of brain regions based on blood perfusion characteristics of the plurality of brain regions in the cerebral perfusion data.Type: GrantFiled: May 20, 2022Date of Patent: March 19, 2024Assignee: BEIJING FRIENDSHIP HOSPITAL, CAPITAL MEDICAL UNIVERSITYInventors: Zhenchang Wang, Wei Zheng, Han Lv, Pengling Ren, Dehong Luo, Linkun Cai, Yawen Liu, Hongxia Yin, Pengfei Zhao, Jing Li, Dong Liu, Erwei Zhao, Tingting Zhang
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Patent number: 11902346Abstract: The present disclosure provides a method and apparatus for processing a streaming media service, an electronic device, and a storage medium, and relates to the technical field of computers, particularly to technical fields such as industrial vision, deep learning, streaming media, and information flow. A specific implementation solution involves: acquiring registration information of an input source, the registration information including process information of a streaming media service process of the input source and streaming media address information of the input source; enabling the streaming media service process according to the process information; and controlling, by using the streaming media address information, the streaming media service process to process streaming media data of the input source.Type: GrantFiled: October 28, 2022Date of Patent: February 13, 2024Assignee: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.Inventors: Shuo Li, Xuechao Wei, Yonggao Fu, Jiabing Leng, Yawen Liu, Mingfa Zhu, Feng Huang
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Publication number: 20230319124Abstract: The present disclosure provides a method and apparatus for processing a streaming media service, an electronic device, and a storage medium, and relates to the technical field of computers, particularly to technical fields such as industrial vision, deep learning, streaming media, and information flow. A specific implementation solution involves: acquiring registration information of an input source, the registration information including process information of a streaming media service process of the input source and streaming media address information of the input source; enabling the streaming media service process according to the process information; and controlling, by using the streaming media address information, the streaming media service process to process streaming media data of the input source.Type: ApplicationFiled: October 28, 2022Publication date: October 5, 2023Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.Inventors: Shuo LI, Xuechao WEI, Yonggao FU, Jiabing LENG, Yawen LIU, Mingfa ZHU, Feng HUANG
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Publication number: 20230125247Abstract: The present application discloses a cerebral perfusion state classification apparatus and method, a device, and a storage medium. The method includes: acquiring, by a transceiving module, cervical blood flow data from an ultrasound data collecting device; determining, by a processor, cerebral perfusion data corresponding to the cervical blood flow data based on the cervical blood flow data and a mapping relationship between the cervical blood flow data and the cerebral perfusion data, and classifying cerebral perfusion states of a plurality of brain regions based on blood perfusion characteristics of the plurality of brain regions in the cerebral perfusion data.Type: ApplicationFiled: May 20, 2022Publication date: April 27, 2023Applicant: CAPITAL MEDICAL UNIVERSITY AFFILIATED BEIJING FRIENDSHIP HOSPITALInventors: Zhenchang WANG, Wei ZHENG, Han LV, Pengling REN, Dehong LUO, Linkun CAI, Yawen LIU, Hongxia YIN, Pengfei ZHAO, Jing LI, Dong LIU, Erwei ZHAO, Tingting ZHANG
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Patent number: 11621079Abstract: The present disclosure discloses a cerebral perfusion state classification apparatus, method and device, and a model training apparatus. In the apparatus, a transceiver module is used for receiving physiological feature data from different data collection devices; and a processor is used for extracting physiological features from the physiological feature data; inputting the physiological features into a random forest model to cause a plurality of decision-making trees in the random forest model to predict a cerebral perfusion state type corresponding to the physiological features; and classifying a cerebral perfusion state based on the cerebral perfusion state type corresponding to the physiological features.Type: GrantFiled: May 20, 2022Date of Patent: April 4, 2023Assignee: BEIJING FRIENDSHIP HOSPITAL, CAPITAL MEDICAL UNIVERSITYInventors: Zhenchang Wang, Wei Zheng, Han Lv, Pengling Ren, Dehong Luo, Linkun Cai, Yawen Liu, Hongxia Yin, Pengfei Zhao, Jing Li, Dong Liu, Erwei Zhao, Tingting Zhang
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Publication number: 20230056555Abstract: The present disclosure discloses a cerebral perfusion state classification apparatus, method and device, and a model training apparatus. In the apparatus, a transceiver module is used for receiving physiological feature data from different data collection devices; and a processor is used for extracting physiological features from the physiological feature data; inputting the physiological features into a random forest model to cause a plurality of decision-making trees in the random forest model to predict a cerebral perfusion state type corresponding to the physiological features; and classifying a cerebral perfusion state based on the cerebral perfusion state type corresponding to the physiological features.Type: ApplicationFiled: May 20, 2022Publication date: February 23, 2023Applicant: CAPITAL MEDICAL UNIVERSITY AFFILIATED BEIJING FRIENDSHIP HOSPITALInventors: Zhenchang WANG, Wei ZHENG, Han LV, Pengling REN, Dehong LUO, Linkun CAI, Yawen LIU, Hongxia YIN, Pengfei ZHAO, Jing LI, Dong LIU, Erwei ZHAO, Tingting ZHANG
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Patent number: 11083824Abstract: The present invention discloses a compound heparin anticoagulant coating liquid, a microsphere for coating and its preparation methods and applications. In the present invention, the combination of curcumin and heparin can enhance the anticoagulation functions of heparin coating, and further enhance the stability using the properties of PLA-PEG-PLA drug-loaded sustained-release microspheres, achieving the functions of anti-tissue proliferation and anti-inflammatory reactions that cannot be achieved by coatings alone such as heparin or protein, which is very important for implanted devices such as artificial blood vessels, vascular stents and vascular patches to reduce thrombosis in the human body, lower postoperative complications and improve product lifespan.Type: GrantFiled: November 22, 2019Date of Patent: August 10, 2021Assignee: WUHAN YOUNGSEN BIOTECH CO., LTDInventors: Tuo Yan, Chenxi Ouyang, Yawen Liu, Sishi Liu, Yuan Liu
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Publication number: 20200086012Abstract: The present invention discloses a compound heparin anticoagulant coating liquid, a microsphere for coating and its preparation methods and applications. In the present invention, the combination of curcumin and heparin can enhance the anticoagulation functions of heparin coating, and further enhance the stability using the properties of PLA-PEG-PLA drug-loaded sustained-release microspheres, achieving the functions of anti-tissue proliferation and anti-inflammatory reactions that cannot be achieved by coatings alone such as heparin or protein, which is very important for implanted devices such as artificial blood vessels, vascular stents and vascular patches to reduce thrombosis in the human body, lower postoperative complications and improve product lifespan.Type: ApplicationFiled: November 22, 2019Publication date: March 19, 2020Inventors: TUO YAN, CHENXI OUYANG, YAWEN LIU, SISHI LIU, YUAN LIU
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Publication number: 20110000641Abstract: A radiating fin structure and a heat sink thereof. The radiating fin structure includes a main body. At least one input section and at least one output section extend from two ends of the main body respectively. The input section and the main body contain a first angle. The output section and the main body contain a second angle. The heat sink is composed of multiple radiating fins, at least one heat pipe and at least one chassis. The heat pipe penetrates through and strings the radiating fins to form one or more radiating fin assemblies. The input sections of the radiating fins of one radiating fin assembly are adjacent to the output sections of the radiating fins of another radiating fin assembly to together define a central heat dissipation section and multiple spiral heat dissipation flow ways as multiple flow guide structures to achieve better heat dissipation effect.Type: ApplicationFiled: July 6, 2009Publication date: January 6, 2011Inventors: Xiaozhen Zeng, Yawen Liu