Patents by Inventor Dongdong Yu
Dongdong Yu 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: 20240177299Abstract: A method, device and apparatus for differentiating arteries and veins of retinal vessels are provided. The method includes acquiring a vessel extraction image, a fundus image, and optic disc center coordinate; extracting a main vessel according to the vessel extraction image, the fundus image and the optic disc center coordinate to obtain a main vessel image, and intercepting the main vessel based on the main vessel image to obtain multiple single vessel segments; measuring diameters of the multiple single vessel segments to obtain diameter sizes of the multiple single vessel segments, obtaining multiple artery-vein vessel pairs according to the diameter sizes.Type: ApplicationFiled: August 13, 2021Publication date: May 30, 2024Applicant: BEIJING ZHENHEALTH TECHNOLOGY CO., LTD.Inventors: Liming Dai, Hongyang Jiang, Dongdong Zhang, Lei Yu
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Publication number: 20240116829Abstract: Disclosed in the present application are a concrete protection material, and a preparation method and a construction method therefor. The concrete protection material consists of 50%-90% of a component A and 10%-50% of a component B in percentage by weight, where the component A is prepared from 30%-65% of organic silicon, 2%-5% of nano-silicon dioxide and the balance of an organic solvent in percentage by weight; and the component B is prepared from 20%-50% of an organic base and the balance of water in percentage by weight. The present application not only can form nano-particles having a strengthening effect in capillary channels of a concrete surface layer, but also can achieve a technical effect of superhydrophobicity on the concrete surface layer.Type: ApplicationFiled: November 21, 2022Publication date: April 11, 2024Applicants: NATIONAL ENGINEERING RESEARCH CENTER OF HIGH-SPEED RAILWAY CONSTRUCTION TECHNOLOGY, CHINA RAILWAY NO.4 ENGINEERING GROUP CO., LTD, ANHUI ENGINEERING MATERIAL TECHNOLOGY CO, LTD OF CTCE GROUPInventors: Dongdong FAN, Hai HUANG, Jianfeng WEN, Jianwei PENG, Zhiyong WANG, Yitao CHEN, Chenhao WU, Jianan YAO, Jie TANG, Juan CHEN, Chunhong LIN, Xianzhu HU, Zhiwu YU
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Patent number: 11933713Abstract: The present disclosure provides a determining device for the weathering resistant capability of clastic rocks in a tunnel based on feldspar features, which overcomes the shortcomings of current evaluation methods, is easy to operate, can be used to detect the type, content, and crystal structure of feldspar in a rock stratum, and integrates the information by combining a computer deep learning method to determine the weathering resistant capability of clastic rocks containing different types of feldspar in a tunnel, with high accuracy.Type: GrantFiled: December 10, 2020Date of Patent: March 19, 2024Assignee: SHANDONG UNIVERSITYInventors: Shucai Li, Zhenhao Xu, Ruiqi Shao, Fumin Liu, Huihui Xie, Tengfei Yu, Peng Lin, Dongdong Pan
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Publication number: 20240085035Abstract: An air guide ring for an air conditioner outdoor unit is provided. The air guide ring includes an air guide ring body. An air guide channel is defined in the air guide ring body. The air guide ring body includes a first limiting portion and a second limiting portion. The first limiting portion and the second limiting portion are configured to fit with a fixing member of the air conditioner outdoor unit and to implement bi-directional limiting, so as to prevent inward contraction deformation and outward expansion deformation of the air guide ring body from occurring.Type: ApplicationFiled: November 24, 2023Publication date: March 14, 2024Applicants: GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD., HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD.Inventors: Mingren WANG, Dongdong YU, Shengsheng LIAO, Langshui HUANG, Ruhui LI, Weihong LUO, Tao ZHANG, Lihe CHEN
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Publication number: 20230160584Abstract: An air conditioner outdoor unit, including a housing, a heat exchanger, a fan wheel, an electric motor and a support, and the housing is provided with a first cavity and an air outlet in communication with the first cavity; the heat exchanger is arranged in the first cavity and connected to the housing; in a horizontal direction, the heat exchanger includes a first portion and a second portion which are opposite each other, a minimum distance S being provided between the first portion and the second portion; the support is arranged in the first cavity, is connected to the housing, and is located above the heat exchanger; the electric motor is in the first cavity and is arranged on the support; the fan wheel is in the first cavity, is connected to the electric motor, and has a diameter of D; and a first portion of the support is opposite the heat exchanger in a vertical direction, the minimum distance between the first portion and the heat exchanger in the vertical direction is L1, and when S<D, 0?L1?0.15D.Type: ApplicationFiled: August 31, 2021Publication date: May 25, 2023Inventors: Naitong LIU, Weitao CHEN, Zhenjiang ZHAN, Dongdong YU, Yuefei LI
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Patent number: 11188965Abstract: An apparatus for recommending a customer item identifies a purchase tendency of a customer based on an image, determines a recommended item for the customer by selecting a purchase tendency model corresponding to the purchase tendency, and provides information associated with the determined recommended item.Type: GrantFiled: October 16, 2018Date of Patent: November 30, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Weiming Li, Dongdong Yu, Yang Liu, Qiang Wang, Minsu Ahn, Sunghoon Hong, Yueying Kao, Zairan Wang, Hao Wang
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Patent number: 10937189Abstract: Disclosed are a pose estimation methods and apparatuses of displaying a virtual object using an estimated pose. The pose estimation method includes receiving an input image and estimating pose information of an object from the input image based on local information of the object.Type: GrantFiled: January 3, 2019Date of Patent: March 2, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Weiming Li, Zairan Wang, Dongdong Yu, Hao Wang, Minsu Ahn, Qiang Wang, Sunghoon Hong, Yang Liu, Yueying Kao
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Patent number: 10885659Abstract: Disclosed is an object pose estimating method and apparatus. The pose estimating method includes acquiring a two-dimensional (2D) image corresponding to an object, extracting a global visual feature and a local geometric feature of the object in the 2D image, and estimating a three-dimensional (3D) pose of the object based on the global visual feature and the local geometric feature.Type: GrantFiled: October 16, 2018Date of Patent: January 5, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Weiming Li, Yueying Kao, Dongdong Yu, Hao Wang, Minsu Ahn, Qiang Wang, Sunghoon Hong, Yang Liu, Zairan Wang
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Publication number: 20190220992Abstract: Disclosed is an object pose estimating method and apparatus. The pose estimating method includes acquiring a two-dimensional (2D) image corresponding to an object, extracting a global visual feature and a local geometric feature of the object in the 2D image, and estimating a three-dimensional (3D) pose of the object based on the global visual feature and the local geometric feature.Type: ApplicationFiled: October 16, 2018Publication date: July 18, 2019Applicant: Samsung Electronics Co., Ltd.Inventors: Weiming LI, Yueying KAO, Dongdong YU, Hao WANG, Minsu AHN, Qiang WANG, Sunghoon HONG, Yang LIU, Zairan WANG
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Publication number: 20190220993Abstract: Disclosed are a pose estimation methods and apparatuses of displaying a virtual object using an estimated pose. The pose estimation method includes receiving an input image and estimating pose information of an object from the input image based on local information of the object.Type: ApplicationFiled: January 3, 2019Publication date: July 18, 2019Applicant: Samsung Electronics Co., Ltd.Inventors: Weiming LI, Zairan WANG, Dongdong YU, Hao WANG, Minsu AHN, Qiang WANG, Sunghoon HONG, Yang LIU, Yueying KAO
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Publication number: 20190205965Abstract: An apparatus for recommending a customer item identifies a purchase tendency of a customer based on an image, determines a recommended item for the customer by selecting a purchase tendency model corresponding to the purchase tendency, and provides information associated with the determined recommended item.Type: ApplicationFiled: October 16, 2018Publication date: July 4, 2019Applicant: Samsung Electronics Co., Ltd.Inventors: Weiming LI, Dongdong YU, Yang LIU, Qiang WANG, Minsu AHN, Sunghoon HONG, Yueying KAO, Zairan WANG, Hao WANG
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Patent number: 9310797Abstract: A single degree of freedom vibration isolating device of a linear motor and a motion control method thereof. The vibration isolating device comprises a balance block, an anti-drifting driving unit, and a control unit. An upper surface of the balance block is connected to a stator of the linear motor, and a lower surface of the balance block is connected to a base. The anti-drifting driving unit is connected to the balance block for controlling the position of the balance block. Provided two motion control methods: inputting a second grating ruler signal to the control unit as feedback to perform variable stiffness and nonlinear control on the balance block; inputting a first and a second grating ruler signal to the control unit as feedback to obtain resultant centroid displacement signals of the rotor and the balance block to perform nonlinear anti-drifting control on the balance block.Type: GrantFiled: April 15, 2013Date of Patent: April 12, 2016Assignee: TSINGHUA UNIVERSITYInventors: Kaiming Yang, Yu Zhu, Dongdong Yu, Rong Cheng, Ming Zhang, Xin Li, Haihua Mu, Jinchun Hu, Dengfeng Xu, Wensheng Yin, Guofeng Ji
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Publication number: 20150077032Abstract: A single degree of freedom vibration isolating device of a linear motor and a motion control method thereof. The vibration isolating device comprises a balance block, an anti-drifting driving unit, and a control unit. An upper surface of the balance block is connected to a stator of the linear motor, and a lower surface of the balance block is connected to a base. The anti-drifting driving unit is connected to the balance block for controlling the position of the balance block. Provided two motion control methods; inputting a second grating ruler signal to the control unit as feedback to perform variable stiffness and nonlinear control on the balance block; inputting a first and a second grating ruler signal to the control unit as feedback to obtain resultant centroid displacement signals of the rotor and the balance block to perform nonlinear anti-drifting control on the balance block.Type: ApplicationFiled: April 15, 2013Publication date: March 19, 2015Applicant: TSINGHUA UNIVERSITYInventors: Kaiming Yang, Yu Zhu, Dongdong Yu, Rong Cheng, Ming Zhang, Xin Li, Haihua Mu, Jinchun Hu, Dengfeng Xu, Wensheng Yin, Guofeng Ji