Patents by Inventor Dongdong ZHAO
Dongdong ZHAO 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: 11995385Abstract: A matching design method of static stiffness for a combined box body structure of a large reducer is provided, including the following steps, building a transmission system model and an initial structure model and obtaining load data; performing a statics analysis; obtaining primary design variables and design responses; constructing design variables; constructing a static stiffness matching target of a combined box body; constructing an objective function; setting constraint conditions; constructing a response surface proxy model; constructing a static stiffness matching optimization model of combined box body; obtaining optimal design variables and obtaining an optimal structure model of the box body; performing the statics analysis on the optimal structure model of the box body, and performing a contrastive analysis with statics analysis results of the corrected box body two-dimensional unit finite element model to confirm optimization effects.Type: GrantFiled: January 16, 2024Date of Patent: May 28, 2024Assignee: University of Shanghai for Science and TechnologyInventors: Lihui Zhao, Dongdong Zhang, Shuo Weng, Jinzhi Feng, Kang Du, Zhen Wang
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Publication number: 20240158002Abstract: The invention discloses a steering mechanism and an independent suspension system. The steering mechanism comprises a steering rocker arm unit, a mid-position locking cylinder, a first power steering cylinder, a second power steering cylinder, a first steering linkage and a second steering linkage; one end of the mid-position locking cylinder is connected with the steering rocker arm unit, and the other end is hinged to a frame; one ends of the first power steering cylinder and the second power steering cylinder are connected with the steering rocker arm unit, and the other ends are hinged to the frame; and one ends of the first steering linkage and the second steering linkage are connected with the steering rocker arm unit, the other ends are connected with knuckle arms, and the knuckle arm is fixed on a wheel rim.Type: ApplicationFiled: April 15, 2021Publication date: May 16, 2024Applicant: XUZHOU HEAVY MACHINERY CO., LTD.Inventors: Zenghai SHAN, Honggang DING, Guangguang CAO, Yunwang MA, Dongdong LI, Liufu ZHAO, Hanwei ZHANG
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Publication number: 20240153419Abstract: A flexible display panel and a preparation method therefor, and a display device and a display module are provided. The flexible display panel includes a planar area, a first bending area, a second bending area and a corner bending area. The corner bending area is connected to a corner of the planar area and is connected between the first bending area and the second bending area, and is provided with a plurality of first hole groups, where the corner bending area is bent with a width of a first hole group in middle of the corner bending area increasing and a width of a first hole group in an edge area on a side of the corner bending area away from the planar area decreasing.Type: ApplicationFiled: January 17, 2024Publication date: May 9, 2024Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Yaming WANG, Liqiang CHEN, Dongdong ZHAO, Zuojia WANG, Xueyan LIU, Xu LI
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Patent number: 11922843Abstract: A flexible display panel and a preparation method therefor, and a display device and a display module are provided. The flexible display panel includes a planar area, a first bending area, a second bending area and a corner bending area. The corner bending area is connected to a corner of the planar area and is connected between the first bending area and the second bending area, and is provided with a plurality of first hole groups, where the corner bending area is bent with a width of a first hole group in middle of the corner bending area increasing and a width of a first hole group in an edge area on a side of the corner bending area away from the planar area decreasing.Type: GrantFiled: June 18, 2021Date of Patent: March 5, 2024Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yaming Wang, Liqiang Chen, Dongdong Zhao, Zuojia Wang, Xueyan Liu, Xu Li
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Patent number: 11874371Abstract: The present invention a sparse optimization method based on cross-shaped three-dimensional imaging sonar array, comprising the following steps: first, constructing a beam pattern simultaneously applicable to a near field and a far field based on a cross-shaped array; then, constructing an energy function required by sparse optimization according to the beam pattern; then, introducing an array element position disturbance into a simulated annealing algorithm to increase the degree of freedom of the sparse process and increase the sparse rate of the sparse array, and using the simulated annealing algorithm to sparse optimization of the energy function; finally, after optimization, a sparse optimization cross-shaped array is obtained. The present invention ensures that the three-dimensional imaging sonar system has the desired performance at any distance, and greatly reduces the hardware complexity of the system.Type: GrantFiled: October 22, 2018Date of Patent: January 16, 2024Assignee: ZHEJIANG UNIVERSITYInventors: Yaowu Chen, Xuesong Liu, Fan Zhou, Rongxin Jiang, Dongdong Zhao
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Publication number: 20230111683Abstract: A flexible display panel and a preparation method therefor, and a display device and a display module are provided. The flexible display panel includes a planar area, a first bending area, a second bending area and a corner bending area. The corner bending area is connected to a corner of the planar area and is connected between the first bending area and the second bending area, and is provided with a plurality of first hole groups, where the corner bending area is bent with a width of a first hole group in middle of the corner bending area increasing and a width of a first hole group in an edge area on a side of the corner bending area away from the planar area decreasing.Type: ApplicationFiled: June 18, 2021Publication date: April 13, 2023Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Yaming WANG, Liqiang CHEN, Dongdong ZHAO, Zuojia WANG, Xueyan LIU, Xu LI
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Publication number: 20230092115Abstract: A device and a method for recovering by-product oxygen from water-electrolysis hydrogen production using a low-temperature method are provided, solving the waste problem of by-product oxygen in the green water-electrolysis hydrogen production system. The device according to the present disclosure comprises an oxygen clarifying system, a pressurizing and heat exchanging system, and a circulating gas compression and expansion refrigeration system. The recovering method according to the present disclosure comprises the following steps: first clarifying and purifying the by-product oxygen from water-electrolysis hydrogen production is to remove hydrogen, carbon monoxide, carbon dioxide, water and other impurities in the oxygen; and then, liquefying, pressurizing and heat exchanging the pure oxygen to obtain the product oxygen and liquid oxygen with required pressure. In the whole process, the cooling capacity is provided by the circulating gas expansion refrigeration system.Type: ApplicationFiled: September 15, 2022Publication date: March 23, 2023Applicant: HANGZHOU OXYGEN PLANT GROUP CO., LTD.Inventors: Yisong HAN, Fang Tan, Xudong Peng, Ling Li, Lei Yao, Lijian Lao, Xin Song, Yunyun Jiang, Dongdong Zhao, Xiaoyu Xie
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Patent number: 11576269Abstract: The disclosure provides a back film structure, a method for manufacturing the back film structure, a display panel and a display device. The back film structure is divided into a bending region and a non-bending region. The back film structure includes a thin film layer and a barrier structure on a side of the thin film layer. An orthographic projection of the barrier structure on the thin film layer at least overlaps an orthographic projection of a boundary line between the bending region and the non-bending region on the thin film layer.Type: GrantFiled: June 24, 2020Date of Patent: February 7, 2023Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yanxin Wang, Liqiang Chen, Xu Tang, Dongdong Zhao, Yaming Wang
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Patent number: 11567352Abstract: The present application discloses a display module, a preparation method thereof, and a display apparatus. In a non-display region of the display panel, the display panel and the optical adhesive have a first open pore and a second open pore penetrating through their thickness, respectively; and an orthographic projection of the first open pore falls in an orthographic projection of the second open pore on the cover plate. A light shading part in the light shading region has a third open pore surrounding the light transmitting region; and the light shading part includes a photochromic material in a light shading state, and an orthographic projection of the light shading part on the cover plate at least covers a region, which does not overlap with the orthographic projection of the first open pore on the cover plate, of the orthographic projection of the second open pore on the cover plate.Type: GrantFiled: September 27, 2021Date of Patent: January 31, 2023Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd,.Inventors: Chuandong Liao, Liqiang Chen, Mengyuan Pang, Yaming Wang, Yanxin Wang, Dongdong Zhao
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Publication number: 20220380749Abstract: The present invention discloses base editing systems for mutating a base C to A and a base C to G and applications thereof. The base editing system for mutating C to A disclosed in the present invention includes cytosine deaminase AID and nCas9 nuclease or includes cytosine deaminase AID, nCas9 nuclease and uracil DNA glycosidase; the base editing system for mutating C to G of the present invention includes cytosine deaminase APOBEC, nCas9 nuclease and uracil DNA glycosidase. The experiments show that a combination of the three base editing systems for mutating C to A, C to T and A to G can realize a mutation of A, T, C or G to any base in both prokaryotes and eukaryotes.Type: ApplicationFiled: August 19, 2020Publication date: December 1, 2022Inventors: Xueli ZHANG, Changhao BI, Dongdong ZHAO, Siwei LI
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Publication number: 20220288819Abstract: A profiling device, a profiling method, a bonding system, a bonding method, and a display device are provided. The profiling device includes a profiling jig. The profiling jig includes an attaching surface. The attaching surface is switchable between a planar state and a profiling state, and the attaching surface is a planar surface in the case that the attaching surface is in the planar state, and the attaching surface is a profiling surface in the case that the attaching surface is in the profiling state.Type: ApplicationFiled: February 28, 2022Publication date: September 15, 2022Inventors: Jiafan SHI, Liqiang CHEN, Yaming WANG, Dongdong ZHAO, Chao ZHOU, Yongchun JIANG, Qian YIN
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Publication number: 20220293016Abstract: A display module includes a flexible display panel and a bearing structure. The flexible display panel includes a display part and a fan-out part coupled to the display part. The bearing structure includes a first bearing film and a first supporting structure. The first bearing film is at a non-light-emitting side of the flexible display panel, covers the display part and the fan-out part, and is configured to bear the flexible display panel. The first supporting structure is at a side of the first bearing film away from the flexible display panel. An orthographic projection of the first supporting structure on the flexible display panel is within an area where the fan-out part is located and at one end away from the display part, and the first supporting structure supports a portion of the fan-out part of the flexible display panel and a portion of the first bearing film.Type: ApplicationFiled: November 25, 2021Publication date: September 15, 2022Inventors: Shuquan YANG, Liqiang CHEN, Chao YANG, Dongdong ZHAO, Shengxing ZHANG, Mengyuan PANG
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Publication number: 20220248962Abstract: A cardiac diastolic function assessment method, for use in the field of cardiac monitoring. The method comprises: noninvasively acquiring vibration information of the thoracic body surface of a subject; preprocessing the vibration information to generate hemodynamics-related information; determining a first parameter and a second parameter on the basis of the hemodynamics-related information; generating an indicating parameter on the basis of the first parameter and of the second parameter, and assessing the cardiac diastolic function of the subject on the basis of the indicating parameter.Type: ApplicationFiled: May 20, 2019Publication date: August 11, 2022Inventors: ZHENGPEI CHU, DONGDONG ZHAO, LINGJUN ZENG, PENGBO LIU, SHAOCHUN ZHUANG
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Publication number: 20220244579Abstract: The present application discloses a display module, a preparation method thereof, and a display apparatus. In a non-display region of the display panel, the display panel and the optical adhesive have a first open pore and a second open pore penetrating through their thickness, respectively; and an orthographic projection of the first open pore falls in an orthographic projection of the second open pore on the cover plate. A light shading part in the light shading region has a third open pore surrounding the light transmitting region; and the light shading part includes a photochromic material in a light shading state, and an orthographic projection of the light shading part on the cover plate at least covers a region, which does not overlap with the orthographic projection of the first open pore on the cover plate, of the orthographic projection of the second open pore on the cover plate.Type: ApplicationFiled: September 27, 2021Publication date: August 4, 2022Inventors: Chuandong LIAO, Liqiang CHEN, Mengyuan PANG, Yaming WANG, Yanxin WANG, Dongdong ZHAO
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Publication number: 20220238820Abstract: The present disclosure provides a flexible display panel, a method for forming the flexible display panel and an adhesive application device for the method. The flexible display panel includes a cover plate layer and a screen film layer. The screen film layer includes a plurality of film layers laminated one on another at one side of the cover plate layer, and an adhesive is filled into a gap between an edge of an outermost film layer of the screen film layer relative to the cover plate layer and the cover plate layer.Type: ApplicationFiled: December 15, 2021Publication date: July 28, 2022Inventors: Yaming WANG, Jia DENG, Haitao LIANG, Dongdong ZHAO, Mingqi GANG, Shaoxiong ZHANG, Jialin WANG
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Patent number: 11333759Abstract: The present invention had disclosed an embedded processor based 3D acoustic imaging real-time signal processing device of modularized design; the system comprises an embedded GPU signal processing subsystem, a signal interaction subsystem and a signal acquisition subsystem. The system takes Tegra K1 embedded GPU processor as the core; Tegra K1 embedded GPU processor is provided with features of OpenGL4.4, OpenGL ES 3.1 and CUDA, which has high parallel image processing capability and abundant high-speed data interconnection interface; it is especially applicable to high-speed data transmission and effective calculation of image algorithm for 3D acoustic imaging real-time signal processing device. Meanwhile, it can realize high-speed data interaction between signal processing subsystem and numerous signal acquisition subsystems; the whole system has powerful data interaction capability and real-time parallel processing capability.Type: GrantFiled: February 12, 2018Date of Patent: May 17, 2022Assignee: ZHEJIANG UNIVERSITYInventors: Xuesong Liu, Fan Zhou, Dongdong Zhao, Yaowu Chen
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Patent number: 11097491Abstract: A mask-based partition preheating device and method are provided. The device includes an overall heating light source and a local preheating light source. A substrate provided at a forming cylinder is configured to heat an underlying powder. A mask plate is provided between the local preheating light source and the overall heating light source. A powder material to be sintered is coated on a local preheating zone. The local preheating light source, the mask plate and the overall heating light source are all connected to a temperature controller. A temperature control probe and a thermal imager in a temperature monitor are disposed in a working chamber for detecting the temperature of the powder surface.Type: GrantFiled: February 9, 2018Date of Patent: August 24, 2021Assignee: Kontour(Xi'an) Medical Technology Co., Ltd.Inventors: Liren Hu, Feng Zhao, Chaoliang Jin, Zhibin Wang, Ruoyu Zhao, Kai Tie, Jingfeng Yang, Yuan Li, Dongdong Zhao, Hua Xue
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Publication number: 20210252788Abstract: A mask-based partition preheating device and method are provided. The device includes an overall heating light source and a local preheating light source. A substrate provided at a forming cylinder is configured to heat an underlying powder. A mask plate is provided between the local preheating light source and the overall heating light source. A powder material to be sintered is coated on a local preheating zone. The local preheating light source, the mask plate and the overall heating light source are all connected to a temperature controller. A temperature control probe and a thermal imager in a temperature monitor are disposed in a working chamber for detecting the temperature of the powder surface.Type: ApplicationFiled: February 9, 2018Publication date: August 19, 2021Applicant: Kontour(Xi'an) Medical Technology Co., Ltd.Inventors: Liren HU, Feng ZHAO, Chaoliang JIN, Zhibin WANG, Ruoyu ZHAO, Kai TIE, Jingfeng YANG, Yuan LI, Dongdong ZHAO, Hua XUE
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Publication number: 20210204417Abstract: The disclosure provides a back film structure, a method for manufacturing the back film structure, a display panel and a display device. The back film structure is divided into a bending region and a non-bending region. The back film structure includes a thin film layer and a barrier structure on a side of the thin film layer. An orthographic projection of the barrier structure on the thin film layer at least overlaps an orthographic projection of a boundary line between the bending region and the non-bending region on the thin film layer.Type: ApplicationFiled: June 24, 2020Publication date: July 1, 2021Inventors: Yanxin WANG, Liqiang CHEN, Xu TANG, Dongdong ZHAO, Yaming WANG
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Publication number: 20210190946Abstract: The present invention a sparse optimization method based on cross-shaped three-dimensional imaging sonar array, comprising the following steps: first, constructing a beam pattern simultaneously applicable to a near field and a far field based on a cross-shaped array; then, constructing an energy function required by sparse optimization according to the beam pattern; then, introducing an array element position disturbance into a simulated annealing algorithm to increase the degree of freedom of the sparse process and increase the sparse rate of the sparse array, and using the simulated annealing algorithm to sparse optimization of the energy function; finally, after optimization, a sparse optimization cross-shaped array is obtained. The present invention ensures that the three-dimensional imaging sonar system has the desired performance at any distance, and greatly reduces the hardware complexity of the system.Type: ApplicationFiled: October 22, 2018Publication date: June 24, 2021Inventors: YAOWU CHEN, XUESONG LIU, FAN ZHOU, RONGXIN JIANG, DONGDONG ZHAO