Patents by Inventor Kai Zeng

Kai Zeng 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: 11793881
    Abstract: The present invention relates to a polyethylene glycol conjugate medicament, a preparation method therefor and use thereof, and in particular relates to a polyethylene glycol conjugate medicament represented by formula (I) or a pharmaceutically acceptable salt thereof. The present invention also relates to a method for preparing the polyethylene glycol conjugate medicament or a pharmaceutically acceptable salt thereof, and an intermediate of the same, a pharmaceutical composition comprising the polyethylene glycol conjugate medicament or a pharmaceutically acceptable salt thereof, and use thereof in preparing a medicament.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: October 24, 2023
    Assignee: CHONGQING UPGRA BIOTECHNOLOGY CO., LTD.
    Inventors: Gaoquan Li, Dajun Li, Qian Zhang, Yusong Wei, Yongchen Peng, Xiangwei Yang, Xiafan Zeng, Gang Mei, Diedie Li, Chengzhi Gao, Xiaoling Ding, Yue Liu, Jia Gao, Yuyang Yi, Yanxia Heng, Xi Liu, Tao Tu, Kai Wang, Liwei Liu, Mei Liu, Qiang Luo, Xiao Tang, Jie Lou, Huiyu Chen, Yue Yang, Yuanqiang Wang
  • Patent number: 11781429
    Abstract: A method for blocking mine water inrush includes: grouting first slurry into an interface between the quaternary aquifer and the weathered bedrock aquifer in a fracture grouting manner until a first preset condition is met; forming a first water-resisting cushion after the first slurry is solidified; drilling a curve branch drill hole in the surface horizon downward; grouting second slurry into the curve branch drill hole in a downward grouting manner until a second preset condition is met; forming a second water-resisting cushion after the second slurry is solidified; grouting third slurry onto a top of the first water-resisting cushion in an upward grouting manner until a third preset condition is met; forming a third water-resisting cushion after the third slurry is solidified; wherein the third water-resisting cushion is located on the top of the first water-resisting cushion.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: October 10, 2023
    Assignees: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING, University of Mining and Technology—Beijing Inner Mongolia Research Institute
    Inventors: Yifan Zeng, Qiang Wu, Weihong Yang, Zhaolai Hua, Yanping Miao, Lu Wang, Kai Pang, Lei Yang, Aoshuang Mei, Shihao Meng, Han Bao, Xue Liu, Xuan Xiao
  • Patent number: 11774078
    Abstract: An interconnected wire trough has a trough body extending in the length direction and a wire assembly installed in the trough body, characterized in that an interconnection mechanism for connecting to another interconnected wire trough is provided at one end of the trough body, and the wire assembly includes a wire extending along the length direction of the trough body and at least two connectors arranged on the wire. The wire trough has a simple structure and can be quickly assembled to form an interconnection power supply structure which can realize the rapid installation of space lighting and can realize seamless connection of lamps with different parameters, making the appearance more tidy and beautiful.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: October 3, 2023
    Assignee: Self Electronics Co., Ltd.
    Inventors: Xiaoyun Liu, Kai Xu, Zuping He, Guoqing Zeng
  • Publication number: 20230278315
    Abstract: A composite substrate and a manufacturing method thereof are provided. By disposing a plurality of interlayers between a carrier plate and a substrate, a strong bonding force between the layers can be ensured, and the difference between the coefficients of thermal expansion of the layers is allowed to be adjusted to prevent such drawbacks as the substrate being likely to break.
    Type: Application
    Filed: June 21, 2022
    Publication date: September 7, 2023
    Inventors: YAN-KAI ZENG, BAI-XUAN JIANG, RUI-FENG JIANG
  • Patent number: 11692518
    Abstract: A controlling method of vehicle exhaust gas recirculation, an apparatus and an electronic device are provided in vehicle field. Before the GPF/DPF starts to work, controlling the EGR to cool the temperature of the recycled gas at a lowest gas temperature required being entranced into the engine; and after the GPF/DPF starts to work, according to a gas temperature change and an intake flow change of an air intake of the EGR, adjusting an opening of a valve arranged in a vent of the EGR and a working power of a pump arranged in a liquid duct of the EGR, for making the EGR to cool the gas recycled by the EGR in a safe temperature range required by the engine. The controlling method is associated controlled with a cooling system of the EGR, for ensuring the recycled exhaust gas temperature and the EGR rate in a suitable range.
    Type: Grant
    Filed: June 12, 2021
    Date of Patent: July 4, 2023
    Assignee: GUANGZHOU AUTOMOBILE GROUP CO., LTD.
    Inventors: Xinglai Huang, Kai Zhang, Zhixin Zeng, Guanghua Zhong, Ning Zhang, Linggui Zhong
  • Patent number: 11670328
    Abstract: A disk-drive suspension includes a load beam, a flexure laid on top of the load beam, a first terminal provided on the flexure, and a first bump arranged on a top surface of the first terminal. The first terminal includes a narrow part having a first width in a first direction and including a center of the first terminal, and a wide part having a second width in the first direction greater than the first width. The wide part and the narrow part are arranged in a second direction intersecting the first direction. The first bump has, at the center, a first height from a bottom surface of the first terminal. The first height is greater than the first width.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: June 6, 2023
    Assignee: NHK SPRING CO., LTD.
    Inventors: Kai Chung Ng, Wen Tao, Zhen Zhou Qi, Jun Zeng
  • Publication number: 20230159060
    Abstract: Techniques for determining unified futures of objects in an environment are discussed herein. Techniques may include determining a first feature associated with an object in an environment and a second feature associated with the environment and based on a position of the object in the environment, updating a graph neural network (GNN) to encode the first feature and second feature into a graph node representing the object and encode relative positions of additional objects in the environment into one or more edges attached to the node. The GNN may be decoded to determine a distribution of predicted positions for the object in the future that meet a criterion, allowing for more efficient sampling. A predicted position of the object in the future may be determined by sampling from the distribution.
    Type: Application
    Filed: November 24, 2021
    Publication date: May 25, 2023
    Inventors: Gowtham Garimella, Marin Kobilarov, Andres Guillermo Morales Morales, Ethan Miller Pronovost, Kai Zhenyu Wang, Xiaosi Zeng
  • Publication number: 20230159059
    Abstract: Techniques for determining unified futures of objects in an environment are discussed herein. Techniques may include determining a first feature associated with an object in an environment and a second feature associated with the environment and based on a position of the object in the environment, updating a graph neural network (GNN) to encode the first feature and second feature into a graph node representing the object and encode relative positions of additional objects in the environment into one or more edges attached to the node. The GNN may be decoded to determine a predicted position of the object at a subsequent timestep. Further, a predicted trajectory of the object may be determined using predicted positions of the object at various timesteps.
    Type: Application
    Filed: November 24, 2021
    Publication date: May 25, 2023
    Inventors: Gowtham Garimella, Marin Kobilarov, Andres Guillermo Morales Morales, Ethan Miller Pronovost, Kai Zhenyu Wang, Xiaosi Zeng
  • Patent number: 11656672
    Abstract: The present application provides a method for controlling a power-down detection circuit, a controller and a computer readable storage medium. The method includes: receiving, by a controller of a power-down detection circuit, a power-down signal, wherein the power-down signal is sent from a power-down detection sub-circuit of the power-down detection circuit when it is determined by the power-down detection sub-circuit that an output voltage of a low-voltage side power supply of the power-down detection circuit is smaller than a threshold, and wherein the power-down detection sub-circuit and the controller are powered by the low-voltage side power supply; controlling, by the controller, a memory of the power-down detection circuit to record fault information, wherein the fault information comprises current information of a high voltage bus sensed by a high-voltage side current sensor of the power-down detection circuit; and performing, by the controller, a fault diagnosis based on the fault information.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: May 23, 2023
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Yuqun Zeng, Kai Wu, Le Chu, Jianwei Zhuo, Qiandeng Li
  • Patent number: 11638051
    Abstract: Frames of a video stream collected at first and second points along a video delivery chain are buffered into first and second buffers, respectively, the second point being downstream the video delivery chain from the first point. A control group is identified as a subset of frames of the second buffer. Correlations of extracted features of the control group to extracted features of successive windows of frames of the first buffer are computed, the extracted features being based on spatial information and temporal information of the video stream. A delay between the video stream collected at the first point and the video stream collected at the second point is identified according to a maximum correlation of the correlations.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: April 25, 2023
    Assignee: SSIMWAVE, Inc.
    Inventors: Hojatollah Yeganeh, Jiheng Wang, Kai Zeng, Kaiwen Ye, Abdul Rehman, Zhou Wang
  • Patent number: 11616959
    Abstract: A source quality of a source video and a source content complexity of the source video are identified. Parameter constraints with respect to parameters of an operation are received. The source video quality, source content complexity, and parameter constraints are applied to a deep neural network (DNN) producing DNN outputs. In an example, the DNN outputs are combined using domain knowledge to provide the filter parameters, as predicted, to a filter chain, such that applying the filter chain to the input source video results in an output video achieving the full reference video quality score. In another example, the DNN outputs are combined using domain knowledge to provide the filter parameters, as predicted, to a filter chain, such that applying the filter chain to the input source video results in an output video achieving the full reference video quality score.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: March 28, 2023
    Assignee: SSIMWAVE, Inc.
    Inventors: Christopher Vytautas Olekas, Peter Olijnyk, Jiheng Wang, Kai Zeng
  • Publication number: 20230010085
    Abstract: A method or system is disclosed to assess transmission errors in a visual media input. Domain knowledge is obtained from the visual media input by content analysis, codec analysis, distortion analysis, and human visual system modeling. The visual media input is divided into partitions, which are passed into deep neural networks (DNNs). The DNN outputs of all partitions are combined with the guidance of domain knowledge to produce an assessment of the transmission error. In one or more illustrative examples, transmission error assessment at a plurality of monitoring points in a visual media communication system is collected and assessed, followed by quality control processes and statistical performance assessment on the stability of the visual communication system.
    Type: Application
    Filed: June 30, 2022
    Publication date: January 12, 2023
    Inventors: Jiheng WANG, Hojatollah YEGANEH, Kai ZENG, Zhou WANG
  • Publication number: 20220384385
    Abstract: The present invention provides a silicon carbide composite wafer and a manufacturing method thereof. The silicon carbide composite wafer includes (a) a silicon carbide material and (b) a wafer substrate, and the upper surface of the wafer substrate is bonded to the lower surface of the silicon carbide material, wherein the lower surface of the silicon carbide material and/or the upper surface of the wafer substrate undergo a surface modification, thereby allowing the silicon carbide material to be bonded to the wafer substrate directly and firmly. The technical effects of the present invention include achieving strong bonding between the wafer and the substrate, reducing manufacturing process, increasing yield rate, and achieving high industrial applicability.
    Type: Application
    Filed: October 12, 2021
    Publication date: December 1, 2022
    Inventors: Yan-Kai ZENG, Bai-Xuan JIANG
  • Publication number: 20220385717
    Abstract: Correlated quality-of-experience (QoE) and latency measures are generated at a plurality of monitoring points along a multimedia delivery chain including multiple video operations. At each of the plurality of monitoring points, an absolute QoE measure defined on a human perceptual quality scale for media content is computed, and one or more of content extraction or feature extraction on the media content are performed. To a common middleware from each of the plurality of monitoring points, the respective QoE measure and results of the one or more of content extraction or feature extraction are transmitted. Computing and updating an absolute QoE measure for each of the plurality of monitoring points is performed. Computing and updating latencies between multiple monitoring points at the middleware using the results from each of the plurality of monitoring points is also performed.
    Type: Application
    Filed: May 13, 2022
    Publication date: December 1, 2022
    Applicant: SSIMWAVE INC.
    Inventors: Zhou WANG, Abdul REHMAN, Christopher KULBAKAS, Kai ZENG, Ahmed BADR, Hojatollah YEGANEH, Jiheng WANG, Ian WORMSBECKER, Peter OLIJNYK
  • Patent number: 11477351
    Abstract: Banding effects in an image or video are assessed. The image or each frame of a video is decomposed into luminance or color channels. Signal activity is computed at each spatial location in each channel. A significance of the signal activity at each spatial location is determined by comparing each element of the signal activity with a significance threshold. Banding pixels are detected as those pixels of the image or frame having significant signal activity at their respective spatial locations and having non-significant signal activity of at least a minimum threshold percentage of neighboring pixels to the respective spatial locations.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: October 18, 2022
    Assignee: SSIMWAVE, Inc.
    Inventors: Zhou Wang, Hojatollah Yeganeh, Ahmed Badr, Kai Zeng
  • Patent number: 11462039
    Abstract: The disclosure may provide a method for obtaining a document layout, an electronic device, and a storage medium. The method may include: obtaining a plurality of characters and character information of each of the plurality of characters in a target document; generating a character fully-connected graph based on the plurality of characters and the character information of each of the plurality of characters; obtaining a spatial semantic feature of each of the plurality of characters; generating types of character vertices based on the character information of each of the plurality of characters; generating types of edges based on the spatial semantic feature of each of the plurality of characters, and the character information of each of the plurality of characters; and obtaining a document layout of the target document based on the types of the character vertices and the types of the edges.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: October 4, 2022
    Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Kai Zeng, Hua Lu, Yiyu Peng
  • Patent number: 11462430
    Abstract: The present invention provides a ceramic-circuit composite structure, comprising: a ceramic plate with a supporting surface that has a recessed supporting portion; a curved-surface circuit buried in the ceramic plate; and a power supply module electrically connected to the curved-surface circuit. Moreover, the present invention provides a method for making the ceramic-circuit composite structure. The ceramic-circuit composite structure of the present invention makes use of the curved-surface circuit to improve the prior art problem that a planar circuit has less static electricity or lower temperature at the center than in the peripheral region.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: October 4, 2022
    Assignee: HONG CHUANG APPLIED TECHNOLOGY CO., LTD
    Inventors: Yan-Kai Zeng, Bai-Xuan Jiang
  • Publication number: 20220201317
    Abstract: Aspects of the present disclosure relate to the assessment on how well and consistent the quality of a video asset satisfies a given target quality level or a time-varying target quality curve, and the optimization on encoding configuration to achieve the best compromise between satisfying the target quality requirement and saving the bit rate/bandwidth cost. The application scope of the present disclosure is generally in, but not limited to, the field of video coding and distributions, including both live and file-based video encoding, broadcasting and streaming systems. Methods and systems implemented based on the present disclosure may achieve the highest accuracy approaching any given target quality with the smoothest quality variation over time, while maximally reduce bit rate/bandwidth and video distribution cost by optimally determining video encoding configurations and parameters.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 23, 2022
    Inventors: Zhou WANG, Hojatollah YEGANEH, Kai ZENG, Jiheng WANG, Abdul REHMAN
  • Publication number: 20220188509
    Abstract: The disclosure provides a method and an apparatus for extracting content from a document, an electronic device, and a storage medium, which relates to the field of artificial intelligence (AI) technologies such as natural language processing (NLP), deep learning (DL), knowledge graph (KG). The detailed implementation scheme is: obtaining the document; performing anchor search on the document to obtain anchor information corresponding to the document; determining region information of content to be extracted based on the anchor information; and extracting the content to be extracted from the document based on the region information.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 16, 2022
    Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
    Inventors: Kai Zeng, Hua Lu
  • Patent number: 11363345
    Abstract: Correlated quality-of-experience (QoE) and latency measures are generated at a plurality of monitoring points along a multimedia delivery chain including multiple video operations. At each of the plurality of monitoring points, an absolute QoE measure defined on a human perceptual quality scale for media content is computed, and one or more of content extraction or feature extraction on the media content are performed. To a common middleware from each of the plurality of monitoring points, the respective QoE measure and results of the one or more of content extraction or feature extraction are transmitted. Computing and updating an absolute QoE measure for each of the plurality of monitoring points is performed. Computing and updating latencies between multiple monitoring points at the middleware using the results from each of the plurality of monitoring points is also performed.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: June 14, 2022
    Assignee: SSIMWAVE Inc.
    Inventors: Zhou Wang, Abdul Rehman, Christopher Kulbakas, Kai Zeng, Ahmed Badr, Hojatollah Yeganeh, Jiheng Wang, Ian Wormsbecker, Peter Olijnyk