Patents by Inventor Xiaozhen Li

Xiaozhen Li 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: 11997312
    Abstract: A video encoding method including obtaining a motion vector candidate list of a current image block; determining a base motion vector according to motion vectors in the motion vector candidate list; in response to the base motion vector pointing to a short-term reference image, scaling a motion vector offset of the base motion vector using a scaling factor to obtain a scaled motion vector offset, and performing prediction for the current image block according to a motion vector determined by the scaled motion vector offset and the base motion vector; and in response to the base motion vector pointing to a long-term reference image, skipping scaling of the motion vector offset, and performing prediction for the current image block according to a motion vector determined by the motion vector offset that is not scaled and the base motion vector.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: May 28, 2024
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Xiaozhen Zheng, Suhong Wang, Shanshe Wang, Siwei Ma, Weiran Li
  • Patent number: 11987532
    Abstract: An ion-modified microwave dielectric ceramic is provided and a chemical formula thereof is Zn0.15Nb0.3[Ti1-x(W1/3Zr1/2)x]0.55O2. In the chemical formula, x is in a range of 0.01 to 0.03. The ion-modified microwave dielectric ceramic includes the following components in parts by weight: 12.58-12.67 parts of ZnO, 41.11-41.39 parts of TiO2, 43.93-45.14 parts of Nb2O5, 0.44-1.31 parts of WO3, and 0.35-1.05 parts of ZrO2. A preparation method of the ion-modified microwave dielectric ceramic can be applied to different industrial requirements, such as electronic components, communication equipment, and microwave components; and the obtained ion-modified microwave dielectric ceramic expands a practical value of a Zn0.15Nb0.3Ti0.55O2 series microwave dielectric ceramic in electronic ceramic manufacturing.
    Type: Grant
    Filed: October 25, 2023
    Date of Patent: May 21, 2024
    Assignee: Huzhou Ceramic-Chip Electronic Technology Co., Ltd.
    Inventors: YuanYuan Yang, XiaoZhen Li, MengJiang Xing, YanLing Luo, HongYu Yang, QingYang Fan, Liang Chai, YiFang Zhang
  • Publication number: 20240157032
    Abstract: A high-strength medical fiber composite material includes a sodium alginate hydrogel matrix and a fiber framework. The fiber framework is completely embedded in the sodium alginate hydrogel matrix and formed by compounding supporting layer fibers and reinforcing layer fibers. The reinforcing layer fibers are located above the supporting layer fibers. The reinforcing layer fibers and the supporting layer fibers are orthogonal to each other. According to the high-strength medical fiber composite material prepared in the present invention, the stiffness is improved by 3-4 orders of magnitude, the tensile strength is improved by 2-3 orders of magnitude, and the high-strength medical fiber composite material has high biocompatibility and safety and a great application prospect.
    Type: Application
    Filed: November 29, 2021
    Publication date: May 16, 2024
    Applicant: CHANGZHOU INSTITUTE OF TECHNOLOGY
    Inventors: Che ZHAO, Songxue LIU, Chun FENG, Zhiwei WU, Yiwei ZHANG, Wenbiao JIANG, Xiaozhen LI
  • Publication number: 20240140874
    Abstract: An ion-modified microwave dielectric ceramic is provided and a chemical formula thereof is Zn0.15Nb0.3[Ti1-x(W1/3Zr1/2)x]0.55O2. In the chemical formula, x is in a range of 0.01 to 0.03. The ion-modified microwave dielectric ceramic includes the following components in parts by weight: 12.58-12.67 parts of ZnO, 41.11-41.39 parts of TiO2, 43.93-45.14 parts of Nb2O5, 0.44-1.31 parts of WO3, and 0.35-1.05 parts of ZrO2. A preparation method of the ion-modified microwave dielectric ceramic can be applied to different industrial requirements, such as electronic components, communication equipment, and microwave components; and the obtained ion-modified microwave dielectric ceramic expands a practical value of a Zn0.15Nb0.3Ti0.55O2 series microwave dielectric ceramic in electronic ceramic manufacturing.
    Type: Application
    Filed: October 25, 2023
    Publication date: May 2, 2024
    Inventors: YuanYuan Yang, XiaoZhen Li, MengJiang Xing, YanLing Luo, HongYu Yang, QingYang Fan, Liang Chai, YiFang Zhang
  • Publication number: 20240137559
    Abstract: A video processing method includes obtaining a first initial motion vector (MV) and a second initial MV. The first initial MV points to a first reference image, and the second initial MV points to a second reference image. The method further includes, in response to the first reference image and the second reference image being both short-term reference images, calculating a motion offset of a current image block based on gradients at sampling points pointed to by the first initial MV and the second initial MV, and calculating a predicted image block of the current image block based on the motion offset of the current image block.
    Type: Application
    Filed: December 18, 2023
    Publication date: April 25, 2024
    Inventors: Xiaozhen ZHENG, Weiran LI
  • Patent number: 11949911
    Abstract: A video processing method includes obtaining motion information of a neighboring block of a current image block, dividing the current image block into a plurality of sub-blocks in response to the neighboring block satisfying a preset condition, determining, in a time-domain reference image of the current image block, related blocks of the plurality of sub-blocks according to a motion vector of the neighboring block, and performing prediction on the current image block according to motion vectors of the related blocks.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: April 2, 2024
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Xiaozhen Zheng, Suhong Wang, Shanshe Wang, Siwei Ma, Weiran Li
  • Patent number: 11949912
    Abstract: A video image processing method includes determining a related block of a current image block according to a motion vector of a target neighboring block, the current image block, and a collocated frame of the current image block, decoding the current image block according to a motion vector of the related block of the current image block, constructing motion vectors of part of control points of the current image block according to neighboring blocks of the part of the control points of the current image block, and adding the motion vectors of the part of the control points of the current image block to a motion vector candidate list of the current image block.
    Type: Grant
    Filed: June 20, 2022
    Date of Patent: April 2, 2024
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Xiaozhen Zheng, Tianliang Fu, Shanshe Wang, Siwei Ma, Weiran Li, Suhong Wang
  • Patent number: 11930751
    Abstract: Disclosed is a pollen control dry pollination machine for Abies ziyuanensis, comprising a lever; a side of a top of the lever is fixedly connected with one end of a square tube; another end of the square tube is rotatably connected with a pollination shell; a top of the square tube and a top of the pollination shell are slidably connected with a fan; the pollination shell is internally provided with a pollen box, a pollen outlet cover and a pollination chamber from a top to a bottom in sequence; the pollen box is communicated with the pollen outlet cover; a bottom of the pollination chamber is provided with an opening; an Abies ziyuanensis ovulate strobilus to be pollinated is placed in the pollination chamber; a bottom of the pollination shell is fixedly connected with a rotating opening; the lever is provided with a switch.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: March 19, 2024
    Assignee: GUANGXI INSTITUTE OF BOTANY, GUANGXI ZHUANG AUTONOMOUS REGION AND CHINESE ACADEMY OF SCIENCES
    Inventors: Xinghua Hu, Tao Deng, Jiatong Ye, Sha Li, Xiaozhen Zhu, Shixun Huang
  • Patent number: 11897815
    Abstract: A Mg—Ta based dielectric ceramic for multi-layer ceramic capacitor (MLCC) and a low-temperature preparation method thereof are provided. By providing a glass additive with high matching with a Mg—Ta ceramic, a modifier A+12CO3—B2+O—C3+2O3—SiO2 (A=Li, K; B=MnO, CuO, BaO; C=B, Al) is intruded in to a main material MgO—Ta2O5, which can significantly reduce the sintering temperature and provide a negative temperature coefficient of dielectric constant of ?100±30 ppm/° C., and reduce the deterioration factors of loss caused by an additive for sintering, and prepare a dielectric material applied to RF MLCC with low loss, low cost and good process stability.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: February 13, 2024
    Assignee: Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China
    Inventors: YuanYuan Yang, XiaoZhen Li, MengJiang Xing, YanLing Luo, HongYu Yang, QingYang Fan
  • Patent number: 11873248
    Abstract: The invention belongs to the field of electronic ceramics and its manufacturing, in particular to the modified NiO—Ta2O5-based microwave dielectric ceramic material sintered at low temperature and its preparation method. It is guided by ion doping modification, not only considering the substitution of ions with similar radius, such as Zn2+ replacing Ni2+ ions, V5+ replacing Ta5+ ions; Meanwhile, the selected doped oxide still has the property of low melting point. Therefore, the microwave dielectric properties of NiO—Ta2O5-based ceramic material can be improved and the appropriate sintering temperature can be reduced. In the invention, by adjusting the molar content of each raw material, the NiO—Ta2O5-based ceramic material with low-temperature sintering, stable temperature and excellent microwave dielectric property is directly synthesized at one time, which can be widely applied to the technical field of LTCC.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: January 16, 2024
    Assignee: Yangtze Delta Region Institute of University of Electronic Science and Technology of China, Huzhou
    Inventors: MengJiang Xing, XiaoZhen Li, HongYu Yang, MingShan Qu
  • Publication number: 20240015923
    Abstract: A wireless charger includes an upper housing assembly, a lower housing assembly, a magnetic sheet coil, and a heat dissipation ring. A concave structure is provided on an upper surface of the lower housing assembly, and the concave structure is coupled to the upper housing assembly to form a cavity structure. The cavity structure accommodates the magnetic sheet coil and the heat dissipation ring. The heat dissipation ring is embedded in the magnetic sheet coil and is in contact with the magnetic sheet coil. An upper surface of the heat dissipation ring is coupled to the upper housing assembly. A lower surface of the heat dissipation ring is coupled to a bottom of the concave structure of the lower housing assembly. The heat dissipation ring may transfer heat in the upper housing assembly to the bottom of the lower housing assembly.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 11, 2024
    Applicant: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Miaomiao ZENG, Chao YANG, Zhipeng GUAN, Yong WANG, Zhao WANG, Yanan GONG, Li HE, Guli ZHU, Tong GU, Xiaozhen LI
  • Patent number: 11858855
    Abstract: A low-temperature sintered microwave dielectric ceramic material and a preparation method thereof are provided. The ceramic material includes a base material and a low-melting-point glass material; a general chemical formula of the base material is (Zn0.9Cu0.1)0.15Nb0.3(Ti0.9Zr0.1)0.55O2; a percent by weight of the low-melting-point glass material is in a range of 1 wt. % to 2 wt. %; chemical compositions of the low-melting-point glass material include A2CO3-M2O3—SiO2, A of which includes at least two of a lithium ion, a sodium ion, and a potassium ion, M of which includes at least one of a boron ion and a bismuth ion; and a sintering temperature of the ceramic material is in a range of 850° C. to 900° C. The microwave dielectric ceramic material has the advantages of low dielectric loss, simple and controllable process, etc., has good process stability, and can meet requirements for radio communication industry.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: January 2, 2024
    Assignee: Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China
    Inventors: MengJiang Xing, XiaoZhen Li, YuanYuan Yang, YanLing Luo, HongYu Yang, QingYang Fan, YunSheng Zhao, Hao Li
  • Patent number: 11854745
    Abstract: A modified Ni—Ti—Ta dielectric material for multi-layer ceramic capacitor (MLCC) and a low-temperature preparation method thereof are provided. By using characteristics that radii of the Cu2+ ion and (Al1/2Nb1/2)4+ ion are close to those of Ni and Ti elements, respectively, Cu2+, Al3+ and Nb5+ ions are introduced into a Ni0.5Ti0.5TaO4 matrix for partial substitution, a negative temperature coefficient of dielectric constant of ?220±30 ppm/° C. is provided while a sintering temperature is significantly reduced, and deterioration factors of loss caused by sintering aids is reduced, so that the dielectric material applied to radio frequency MLCC with low loss, low cost and good process stability is prepared.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: December 26, 2023
    Assignee: Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China
    Inventors: YuanYuan Yang, XiaoZhen Li, MengJiang Xing, YanLing Luo, HongYu Yang, QingYang Fan, Hao Li, YunSheng Zhao
  • Publication number: 20230352239
    Abstract: A modified Ni—Ti—Ta dielectric material for multi-layer ceramic capacitor (MLCC) and a low-temperature preparation method thereof are provided. By using characteristics that radii of the Cu2+ ion and (Al½Nb½)4+ ion are close to those of Ni and Ti elements, respectively, Cu2+, Al3+ and Nb5+ ions are introduced into a Ni0.5Ti0.5TaO4 matrix for partial substitution, a negative temperature coefficient of dielectric constant of -220±30 ppm/°C is provided while a sintering temperature is significantly reduced, and deterioration factors of loss caused by sintering aids is reduced, so that the dielectric material applied to radio frequency MLCC with low loss, low cost and good process stability is prepared.
    Type: Application
    Filed: April 27, 2023
    Publication date: November 2, 2023
    Inventors: YuanYuan Yang, XiaoZhen Li, MengJiang Xing, YanLing Luo, HongYu Yang, QingYang Fan, Hao Li, YunSheng Zhao
  • Publication number: 20230348332
    Abstract: A Mg—Ta based dielectric ceramic for multi-layer ceramic capacitor (MLCC) and a low-temperature preparation method thereof are provided. By providing a glass additive with high matching with a Mg—Ta ceramic, a modifier A+12CO3—B2+O—C3+2O3—SiO2 (A=Li, K; B=MnO, CuO, BaO; C=B, Al) is intruded in to a main material MgO—Ta2O5, which can significantly reduce the sintering temperature and provide a negative temperature coefficient of dielectric constant of ?100±30 ppm/° C., and reduce the deterioration factors of loss caused by an additive for sintering, and prepare a dielectric material applied to RF MLCC with low loss, low cost and good process stability.
    Type: Application
    Filed: April 27, 2023
    Publication date: November 2, 2023
    Inventors: YuanYuan Yang, XiaoZhen Li, MengJiang Xing, YanLing Luo, HongYu Yang, QingYang Fan
  • Patent number: 11746056
    Abstract: The invention belongs to the field of electronic ceramics and its manufacturing, in particular to the modified NiTa2O6-based microwave dielectric ceramic material co-sintered at low temperature and its preparation method. Based on the low melting point characteristics of CuO and B2O3, and the radius of Cu2+ ions is similar to that of Ni2+ and Ta5+ ions, the chemical general formula of the invention is designed as xCuO-(1-x)NiO-[7.42y+(xy/14.33)]B2O3—Ta2O5, and the molar content of each component is adjusted from raw materials. The main crystalline phase of NiTa2O6 is synthesized at a lower pre-sintering temperature, and NiTa2O6-based ceramic material with low-temperature sintering characteristics and excellent microwave dielectric properties are directly synthesized at one time, which broadened the application range in LTCC field.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: September 5, 2023
    Assignee: Yangtze Delta Region Institute of University of Electronic Science and Technology of China, Huzhou
    Inventors: MengJiang Xing, XiaoZhen Li, HongYu Yang, MingShan Qu
  • Publication number: 20230145935
    Abstract: The invention belongs to the field of electronic ceramics and its manufacturing, in particular to the modified NiO-Ta2O5-based microwave dielectric ceramic material sintered at low temperature and its preparation method. It is guided by ion doping modification, not only considering the substitution of ions with similar radius, such as Zn2+ replacing Ni2+ ions, V5+ replacing Ta5+ ions; Meanwhile, the selected doped oxide still has the property of low melting point. Therefore, the microwave dielectric properties of NiO-Ta2O5-based ceramic material can be improved and the appropriate sintering temperature can be reduced. In the invention, by adjusting the molar content of each raw material, the NiO-Ta2O5-based ceramic material with low-temperature sintering, stable temperature and excellent microwave dielectric property is directly synthesized at one time, which can be widely applied to the technical field of LTCC.
    Type: Application
    Filed: November 3, 2022
    Publication date: May 11, 2023
    Inventors: MengJiang Xing, XiaoZhen Li, HongYu Yang, MingShan Qu
  • Publication number: 20230132916
    Abstract: The invention belongs to the field of electronic ceramics and its manufacturing, in particular to the modified NiTa2O6-based microwave dielectric ceramic material co-sintered at low temperature and its preparation method. Based on the low melting point characteristics of CuO and B2O3, and the radius of Cu2+ ions is similar to that of Ni2+ and Ta5+ ions, the chemical general formula of the invention is designed as xCuO-(1-x)NiO-[7.42y+(xy/14.33)]B2O3—Ta2O5, and the molar content of each component is adjusted from raw materials. The main crystalline phase of NiTa2O6 is synthesized at a lower pre-sintering temperature, and NiTa2O6-based ceramic material with low-temperature sintering characteristics and excellent microwave dielectric properties are directly synthesized at one time, which broadened the application range in LTCC field.
    Type: Application
    Filed: November 3, 2022
    Publication date: May 4, 2023
    Inventors: MengJiang Xing, XiaoZhen Li, HongYu Yang, MingShan Qu
  • Publication number: 20140351285
    Abstract: Disclosed are a platform and method for analyzing electric power system data. The platform uses a cloud-distributed database to store data to be processed, performs, based on a received operating command, immediate inquiry and/or multi-dimensional analysis and/or machine learning and the like on the data to be processed so as to analyze said data, and achieves knowledge mining of said data through machine learning algorithm analysis. Through the platform and method for analyzing electric power system data disclosed in the present invention, unknown and valuable data can be extracted using a machine learning algorithm, thereby providing advantageous support for enterprise decisions.
    Type: Application
    Filed: January 18, 2012
    Publication date: November 27, 2014
    Applicants: STATE GRID INFORMATION & TELECOMMUNICATION BRANCH, GUO DIAN TONG NETWORK TECHNOLOGY COMPANY LTD., STATE GRID CORPORATION OF CHINA
    Inventors: Jianming Liu, Jiye Wang, Ning Li, Pengzhan Fan, Fengyu Wang, Houlei Lv, Xiaozhen Li