Patents by Inventor Yifei LIU
Yifei 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: 20240185473Abstract: A neural network system, a method and an apparatus for image compression are provided. The neural network may include a generator including an encoder, an entropy estimator, and a decoder, where the encoder receives an input image and generates an encoder output, a plurality of quantized feature entries are obtained based on the encoder output outputted at a last encoder block, the entropy estimator receives the plurality of quantized feature entries and calculates an entropy loss based on the plurality of quantized feature entries, and the decoder receives the plurality of quantized feature entries and generates a reconstructed image. Furthermore, the neural network may include a discriminator that determines whether the reconstructed image different from the input image based on a discriminator loss. Moreover, the generator may determine whether content of the reconstructed image matches content of the input image based on a generator loss including the entropy loss.Type: ApplicationFiled: October 19, 2022Publication date: June 6, 2024Applicants: SANTA CLARA UNIVERSITY, KWAI INC.Inventors: Yifei PEI, Ying LIU, Nam LING, Yongxiong REN, Lingzhi LIU
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Publication number: 20240182788Abstract: Mesophase pitch compositions may be obtained by subjecting isotropic pitch compositions to heat-treatment. Methods for producing mesophase pitch compositions may comprise heat treating an isotropic pitch composition comprising two or more aromatic classes linked with at least one methylene bridge between each aromatic classes, at a temperature of about 300° C. to about 500° C. to produce a mesophase pitch composition having a weight average molecular weight of about 300 g/mol to about 2,000 g/mol, a softening point of about 100° C. or greater, a mesophase content of about 0.01 vol % to 100 vol %, based on the total volume of the mesophase pitch composition, and a micro carbon residue of about 25 wt % or greater, based on the total weight of the mesophase pitch composition; wherein heat treating induces cyclization between at least two of the two or more aromatic classes to form one or more 5-membered rings and/or 6-membered rings.Type: ApplicationFiled: March 8, 2022Publication date: June 6, 2024Inventors: Renyuan Yu, Ozcan Altintas, Anthony S. Mennito, Jihad M. Dakka, Teng Xu, Yifei Liu, David T. Ferrughelli, Giovanni S. Contello
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Publication number: 20240166239Abstract: According to some embodiments, systems, methods, and media for operating an autonomous driving vehicle (ADV) encountered with small objects are described. According to a method, the ADV, when detecting an object in a lane in which the ADV is travelling, can determine whether the ADV can safely drive over the object based on attributes of the object and attributes of the ADV, and if so, can generate one or more planned trajectories that each enable the ADV to drive over the object. From the one or more planned trajectories, the ADV can select a planned trajectory that enables the ADV to drive over the object along the centerline of the ADV without causing the ADV to drive out of the lane. If no such planned trajectory exists, the ADV can bypass the object, or stop within a predetermined distance of the object.Type: ApplicationFiled: November 21, 2022Publication date: May 23, 2024Inventors: Hao LIU, Shu JIANG, Yifei JIANG, Weiman LIN, Szu-Hao WU, Helen K. PAN
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Patent number: 11965734Abstract: The present invention relates to a method and system for quantitatively evaluating surface roughness of an organic pore of kerogen in shale. The method includes: making a shale sample; applying a circle of silver-painted conductive tape on the edge of the shale sample to obtain a processed sample; conducting image scanning on the processed sample to obtain a scanned image; determining a kerogen area according to the scanned image; determining an organic pore area according to the kerogen area; carrying out gridding treatment on the organic pore area to obtain multiple grid cells; adopting double integral calculation on each of the grid cells to obtain the areas of the multiple grid cells; summing each of the areas to obtain the surface area of the organic pore; and evaluating surface roughness of the organic pore according to the surface area of the pore.Type: GrantFiled: October 1, 2020Date of Patent: April 23, 2024Assignee: Northeast Petroleum UniversityInventors: Shansi Tian, Bo Liu, Xiaofei Fu, Fang Zeng, Xu Dong, Yifei Gao, Zhenjie Luo
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Publication number: 20240130104Abstract: A semiconductor structure including a substrate, a first dielectric layer disposed on the substrate, a second dielectric layer disposed on the first dielectric layer and in physical contact with the first dielectric layer, an opening on the substrate and having a lower portion through the first dielectric layer and an upper portion through the second dielectric layer, an conductive layer disposed on the second dielectric layer at two sides of the opening and in physical contact with the second dielectric layer, a contact structure disposed in the lower portion of the opening, and a passivation layer covering a top surface of the contact structure, a sidewall of the second dielectric layer, and a sidewall of the conductive layer.Type: ApplicationFiled: December 27, 2023Publication date: April 18, 2024Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Yi-Wang Jhan, Fu-Che Lee, Gang-Yi Lin, An-Chi Liu, Yifei Yan, Yu-Cheng Tung
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Patent number: 11951487Abstract: The present invention discloses a same-cavity integrated vertical high-speed multistage superfine pulverizing device and method for walnut shells. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells includes a double-channel sliding type feeding device and a same-cavity integrated vertical pulverizing device. The same-cavity integrated vertical pulverizing device includes a material lifting disc and a same-cavity integrated vertical pulverizing barrel. A first-stage coarse crushing region, a second-stage fine crushing region, a third-stage pneumatic impact micro pulverizing region and a fourth-stage airflow mill superfine pulverizing region are disposed in the same-cavity integrated vertical pulverizing barrel.Type: GrantFiled: May 9, 2020Date of Patent: April 9, 2024Assignees: QINGDAO UNIVERSITY OF TECHNOLOGY, RESEARCH INSTITUTE OF AGRICULTURAL MECHANIZATION, XINJIANG ACADEMY OF AGRICULTURAL SCIENCES, XINJIANG JIANG NING LIGHT INDUSTRIAL MACHINERY ENGINEERING TECHNOLOGY CO., LTD.Inventors: Changhe Li, Mingzheng Liu, Xiaoming Wang, Huimin Yang, Xinping Li, Xiangdong Liu, Tuluhon Turdi, Ji Che, Lianxing Gao, Huayang Zhao, Xiaowei Zhang, Yanbin Zhang, Yifei Chen, Yali Hou
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Publication number: 20240102256Abstract: A foldable windproof unit, a large-span windproof net structure thereof, and a windproof method are disclosed. The foldable windproof unit comprises a flexible windproof net, towers arranged at intervals, and a load-bearing rope erected on the two towers. The tower on one side is provided with a horizontal pulley assembly, and the tower on the other side is provided with two vertical pulleys. The top edge of the flexible windproof net is slidably connected to the load-bearing rope by means of a plurality of hanging structures. The foldable windproof unit further comprises a traction rope, the traction rope is arranged on the horizontal pulley assembly in a sleeving manner, and the two free ends of the traction rope extend to respectively bypass the two vertical pulleys and are connected to winding mechanism. The hanging structure close to the tower on one side is fixedly connected to the traction rope.Type: ApplicationFiled: November 29, 2022Publication date: March 28, 2024Applicant: SHIJIAZHUANG TIEDAO UNIVERSITYInventors: Qingkuan LIU, Xiaobing CHAI, Yifei SUN, Zhen LI, Xi WANG, Nian LIU, Yangxue WANG, Xing CHANG, Saifei FU
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Publication number: 20240095159Abstract: A method for assessing test adequacy of deep neural networks based on element decomposition is provided. The network testing is divided into black box testing and white box testing, of which key elements are decomposed and defined. Network parameters including a weight matrix and a bias vector are extracted. Importance values of neurons in individual layers of the deep neural network are calculated and clustered, and an importance value hot map of neurons in each layer is generated based on clustering results. Mutation testing, and index calculation and evaluation are performed.Type: ApplicationFiled: November 22, 2023Publication date: March 21, 2024Inventors: Yinxiao MIAO, Yifei LIU, Ping YANG, Xiujian ZHANG, Zhonghao CHENG, Long ZHANG, Tianqi WAN, Haoyi CHEN, Jing SUN, Yijia DING
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Publication number: 20240059976Abstract: Processes are described for producing mesophase pitch. The processes generally comprise providing a feedstock having a T5 ?400° F. (204° C.) and a T95 ?1,400° F. (760° C.) and heating the feedstock at a temperature ranging from about 420° C. to about 520° C. to produce a heat treated product including isotropic pitch. Generally, the heating is conducted under conditions sufficient to satisfy the relationship [X*Y]?20,000 seconds, wherein X is the equivalent reaction time of the heating, and wherein Y is the bromine number of the feedstock as measured in accordance with ASTM D1159. The processes generally further comprise contacting the isotropic pitch with a solvent having a Solubility Blending number (SBN) of at least about 10 SU under conditions sufficient to produce a solvent fraction comprising the solvent and an insoluble fraction comprising mesophase pitch, and recovering the mesophase pitch.Type: ApplicationFiled: January 4, 2022Publication date: February 22, 2024Inventors: Yifei Liu, Stephen T. Cohn, Jeffrey C. Yeh, Teng Xu
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Publication number: 20240040902Abstract: The present application provides a display device includes: a display panel; at least one function film disposed on at least one side of a display panel, wherein each of the function film includes a first magnetic unit; wherein display device further includes a second magnetic unit located between the display panel and each function film. The second magnetic unit is securely connected to the display panel and has a magnetic attraction force between the second magnetic unit and the first magnetic unit. The display panel is slidably connected to the function film through the second magnetic unit.Type: ApplicationFiled: December 24, 2021Publication date: February 1, 2024Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Yifei Liu, Taijiun Hwang
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Publication number: 20230363350Abstract: The present invention is a pet cage having an upper cage member and a lower base member. The lower base member has a bottom that is partially cut out. An exchangeable plate or tray is provided and adapted to engage with the opening in the bottom of the lower base member. When an exchangeable plate or tray with access points, such as through-holes, are used, the pet can graze on fresh grass in a safe environment. When an exchangeable plate or tray without access points are used, the cage is restored to a conventional cage with closed bottom surface.Type: ApplicationFiled: May 12, 2022Publication date: November 16, 2023Inventors: Stanley Yifei Liu, Wesley Yiming Liu, Zhiqiang Liu
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Publication number: 20230323750Abstract: The invention relates to the field of oilfield development engineering, and discloses a self-growing gel dispersion active fluidity control system and a fluid channeling control method for a low-permeability-tight reservoir. The system contains 100 parts by weight of a self-growing gel dispersion and 0.15-0.6 part by weight of a surfactant, the self-growing gel dispersion is prepared by shearing and grinding nano-reinforced chromium-aldehyde double-group cross-linked integral gel, and the preparation method of the nano-reinforced chromium-aldehyde double-group cross-linked integral gel comprises the following steps: adding a functional polymer, a phenolic resin cross-linking agent, are organic chromium cross-linking agent and a nano-reinforcer into water, mixing, and curing.Type: ApplicationFiled: April 7, 2023Publication date: October 12, 2023Applicants: China University of Petroleum (East China), China University of Geosciences (Beijing)Inventors: Yifei LIU, Caili DAI, Guang ZHAO, Chenwei ZOU, Ning YANG, Qing YOU, Mingwei ZHAO, Yining WU, Lin LI, Yongpeng SUN
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Patent number: 11774417Abstract: Methods and systems to preserve, prepare, extract, and/or analyze hydrocarbons in the pore spaces of or adsorbed in organic-rich rock samples, such as, but not limited to, drill cuttings and drill cores, using one or more combinations of physical energy sources, including, but not limited to, thermal, vapor pressure, and mechanical stress. The collected samples are transported and prepared in low temperature conditions, with parts of subsequent processing at very low temperatures, thereby allowing a fuller measurement of geochemical fingerprints for the extracted hydrocarbons using various analysis tools. More particularly, the treatment and process allows geochemical fingerprinting to very low carbon number ranges.Type: GrantFiled: September 1, 2020Date of Patent: October 3, 2023Inventors: Yifei Liu, Jiang Wu
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Three-dimension unconventional reservoir monitoring using high-resolution geochemical fingerprinting
Patent number: 11624738Abstract: Methods and systems to monitor and analysis unconventional reservoirs with wellbores with a substantially horizontal section. Monitoring and analysis is conducted in three dimensions using high-resolution geochemical fingerprinting analyses of rock samples and produced oil samples. The invention uses methods to preserve, prepare, extract, and/or analyze hydrocarbons in the pore spaces of or adsorbed in organic-rich rock samples, such as, but not limited to, drill cuttings and drill cores, using one or more combinations of physical energy sources, including, but not limited to, thermal, vapor pressure, and mechanical stress. The collected samples are transported and prepared in low temperature conditions, with parts of subsequent processing at very low temperatures, thereby allowing a fuller measurement of geochemical fingerprints for the extracted hydrocarbons using various analysis tools. More particularly, the treatment and process allows geochemical fingerprinting to very low carbon number ranges.Type: GrantFiled: March 10, 2020Date of Patent: April 11, 2023Inventors: Yifei Liu, Jiang Wu -
Publication number: 20220193174Abstract: The present disclosure belongs to the technical field of medicine preparation, and particularly relates to a nasal spray for preventing influenza based on a red pepper extract and heparin and a preparation method thereof. A nasal spray consists of the following raw materials in parts by weight: 10% ?-PGA-CS, 5-10% glycerol, 2% red pepper extract, 5-10% heparin solution, 2-2.4% ethanol and balance of purified water. The present disclosure can not only inhibit germs and diminish inflammation, and has a better therapeutic effect on rhinitis, but also can keep the inner surface of a nasal cavity moist for a long time. Moreover, the present disclosure can reduce side effects on a human body by changing the type of bactericides in the nasal spray, thus keeping the nasal cavity clean and moist for a long time.Type: ApplicationFiled: May 24, 2021Publication date: June 23, 2022Applicant: QUFU NORMAL UNIVERSITYInventors: Ge Yang, Yifei Liu, Chengchuan Che, Jinfeng Liu, Zhijin Gong, Yang Sun, Qi Chen
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Patent number: 11297601Abstract: A resource allocation method for network slicing and an orchestrator, comprising: uniformly incorporating resources originally bundled statically with the base station into a dynamic resource pool; allocating, by an orchestrator, resources from among the dynamic resource pool for the network slicing based on different network slicing requirements. A static corresponding/mapping relationship between the hardware/radio resources and the base station is broken, such that hardware/radio resources (e.g., radio access network Virtual Network Function (RAN VNF), baseband unit (BBU), RRH (Remote Radio Head) as well as antenna) that originally corresponded to different base stations will be organized as an integrated and dynamic hardware/radio resource pool and reported to the orchestrator, such that the orchestrator will centrally manage all hardware/radio resources in this pool and then sufficiently utilize and dynamically orchestrate these hardware/radio resources based different needs from the network slicing.Type: GrantFiled: January 17, 2018Date of Patent: April 5, 2022Assignee: Alcatel LucentInventors: Yifei Liu, Haobo Xing, Xiaoxing Han, Jing Xia, Xiaogen Jiang, Min Zhang
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Patent number: 11247909Abstract: The present disclosure discloses a multi-grafting site carbon nanomaterial comprising a structural unit represented by Formula (1), hydroxyl groups and a structural unit represented by Formula (2); wherein R is one or more selected from the group consisting of tolyl, diphenylmethyl, isophorone group and dicyclohexylmethyl;Type: GrantFiled: April 22, 2021Date of Patent: February 15, 2022Assignees: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA), CHINA UNIVERSITY OF GEOSCIENCES (BEIJING)Inventors: Guang Zhao, Caili Dai, Lihao Liang, Dongfang Lyu, Qing You, Yifei Liu, Ning Yang, Ning Sun
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Patent number: 11138479Abstract: A method for valuation of image dark data based on similarity hashing, the method including: (1) acquiring a dark dataset, and inputting the dark dataset into a trained deep self-taught hashing algorithm model to obtain a hash code of each image in the dark dataset; (2) constructing a hash map according to the hash code of each image in the dark dataset obtained in (1), where the hash map includes a plurality of nodes, each node represents the hash code of each image; (3) acquiring a significance score of each node in the hash map obtained in (2); and (4) sorting significance scores of the plurality of nodes obtained in (3) in a descending order, and outputting images corresponding to top k significance scores of the plurality of nodes to users, where k is a natural number.Type: GrantFiled: July 30, 2019Date of Patent: October 5, 2021Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Ke Zhou, Yu Liu, Yujuan Yang, Hua Wang, Chunhua Li, Yangtao Wang, Yifei Liu
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Publication number: 20200410304Abstract: A method for valuation of image dark data based on similarity hashing, the method including: (1) acquiring a dark dataset, and inputting the dark dataset into a trained deep self-taught hashing algorithm model to obtain a hash code of each image in the dark dataset; (2) constructing a hash map according to the hash code of each image in the dark dataset obtained in (1), where the hash map includes a plurality of nodes, each node represents the hash code of each image; (3) acquiring a significance score of each node in the hash map obtained in (2); and (4) sorting significance scores of the plurality of nodes obtained in (3) in a descending order, and outputting images corresponding to top k significance scores of the plurality of nodes to users, where k is a natural number.Type: ApplicationFiled: July 30, 2019Publication date: December 31, 2020Inventors: Ke ZHOU, Yu LIU, Yujuan YANG, Hua WANG, Chunhua LI, Yangtao WANG, Yifei LIU
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Patent number: 10844275Abstract: The present disclosure relates to a method for oil displacement using a dispersed particle gel-strengthened polymer ternary composite displacement system.Type: GrantFiled: January 24, 2020Date of Patent: November 24, 2020Assignee: China University of Petroleum (East China)Inventors: Caili Dai, Guang Zhao, Jiaping Tao, Yifei Liu, Chenglin Gu, Jiaming Li