Patents by Inventor Xiang Zhang

Xiang Zhang 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: 11161827
    Abstract: In one aspect, the disclosure relates to a mode of asymmetric induction in radical processes based on sequential combination of enantiodifferentiative H-atom abstraction and stereoretentive radical substitution. Also disclosed is an asymmetric system for stereoselective synthesis of strained 5-membered cyclic sulfamides via radical 1,5-C—H amination of sulfamoyl azides. The disclosed metalloradical system can control the degree and sense of asymmetric induction in the catalytic radical C—H amination in a systematic manner. The disclosed system is applicable to a broad scope of substrates with different types of C(sp3)—H bonds and exhibits reactivity and selectivity, providing access to both enantiomers of useful 5-membered cyclic sulfamides in a highly enantioenriched form. Also disclosed are catalysts useful in these processes. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: November 2, 2021
    Assignee: The Trustees of Boston College
    Inventors: Xiao-Xiang Zhang, Kai Lang
  • Publication number: 20210332137
    Abstract: The present disclosure provides methods of administering antibodies and antigen-binding fragments thereof that specifically bind to human B7-H4 to a subject in need thereof, for example, a cancer patient, in combination with a PD-1/PD-L1 antagonist, such as an anti-PD-1 antibody.
    Type: Application
    Filed: April 7, 2021
    Publication date: October 28, 2021
    Inventors: Sandeep P. INAMDAR, Helen L. COLLINS, Hong XIANG, Xiang ZHANG, Neyssa MARINA
  • Patent number: 11158116
    Abstract: A method, computer program, and computer system for point cloud coding is provided. Data corresponding to a point cloud is received, and one or more geometric features are detected from among the data corresponding to the point cloud. A representation is determined for one or more of the detected geometric features, and the received data is encoded or decoded based on the determined representations whereby the point cloud is reconstructed based on the decoded data.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: October 26, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Xiang Zhang, Wen Gao, Shan Liu
  • Patent number: 11145993
    Abstract: An antenna module and a terminal applying the antenna module are disclosed. The antenna module includes an antenna array configured with a plurality of antenna units and a radio-frequency phase shifting system. The antenna array and the radio-frequency phase shifting system are integrated on a circuit substrate to form an independent module. Further, the antenna unit of the antenna module may adopt a solution of a microstrip patch antenna structure loading a short-circuit pillar to generate multiple resonances, thereby expanding the bandwidth of the antenna unit. After the antenna array is formed, the antenna modules may be further arranged perpendicular to each other to expand and achieve large-angle scanning and polarization diversity functions. The disclosed antenna module has a simplified structure and may be applied to 5G communication. It has the advantages of easy system integration, low-profile miniaturization, wide radiation bandwidth, and large-angle scanning.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: October 12, 2021
    Assignees: ELECTRIC CONNECTOR TECHNOLOGY CO., LTD., SHANGHAI UNIVERSITY
    Inventors: Guangli Yang, Yuanqing Chen, Yong Luo, Jiayou Xu, Zefeng Jiang, Xiang Zhang, Yingjie Zhang, Eugene Yu-Jiun Ren
  • Publication number: 20210312667
    Abstract: A method of point cloud geometry decoding in a point cloud decoder is provided. In the method, first signaling information is received from a coded bitstream for a point cloud that includes a set of points in a three-dimensional (3D) space. The first signaling information indicates partition information of the point cloud. Second signaling information is determined based on the first signaling information indicating a first value. The second signaling information is indicative of a partition mode of the set of points in the 3D space. Further, the partition mode of the set of points in the 3D space is determined based on the second signaling information. The point cloud is reconstructed subsequently based on the partition mode.
    Type: Application
    Filed: March 16, 2021
    Publication date: October 7, 2021
    Applicant: Tencent America LLC
    Inventors: Sehoon YEA, Wen GAO, Xiang ZHANG, Shan LIU
  • Publication number: 20210306663
    Abstract: A method and apparatus for coding information of a point cloud that includes obtaining the point cloud including a set of points in a three-dimensional space; determining whether a current node in the set of points is isolated; and coding the current node in isolation mode based on a determination that the current node is isolated and coding the current node in non-isolation mode, based on a determination that the current node is not isolated.
    Type: Application
    Filed: October 29, 2020
    Publication date: September 30, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Xiang ZHANG, Wen GAO, Shan LIU
  • Publication number: 20210306664
    Abstract: A method, a non-transitory computer readable medium, and a computer system is provided for encoding or decoding video data. The method may include: receiving an entropy coded bitstream comprising compressed video data including point cloud occupancy codes; generating one or more dequantized dimensions of a boundary box of a point cloud; based on determining that the compressed video data was predicted by using the attribute-based predictor, determining a predictor for decoding is the attribute-based predictor; based on determining that the compressed video data was predicted by using the attribute-based predictor, determining the predictor for decoding is the geometry-based predictor; and building an octree structure by using the determined predictor.
    Type: Application
    Filed: December 31, 2020
    Publication date: September 30, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Wen GAO, Xiang ZHANG, Shan LIU
  • Publication number: 20210305836
    Abstract: Provided by the present application are a Direct Current (DC) micro-grid system, a charging loop circuit and a control method thereof. The charging loop circuit selectively connects a charging loop to a first side loop or a second side loop through a set of switches.
    Type: Application
    Filed: December 19, 2018
    Publication date: September 30, 2021
    Inventors: Shiyong Jiang, Xiang Zhang, Chongyang Feng, Ningning Chen, Meng Li, Yu Zhang
  • Patent number: 11117123
    Abstract: In one aspect, the disclosure relates to a mode of asymmetric induction in radical processes based on enhanced hydrogen-bonding capability and the situation of metal centers in cavity-like chiral environments. Also disclosed is an asymmetric system for stereoselective synthesis of cyclopropane and aziridine derivatives. The disclosed Co(II)-based metalloradical system has been shown to have an unusual capability of controlling both the degree and sense of asymmetric induction in cyclopropanation and aziridination reactions in a systematic manner. The disclosed system is applicable to a broad scope of substrates having diazo or azido moieties and exhibits a remarkable profile of reactivity and selectivity, providing access to cyclopropane diastereomers and aziridine enantiomers in highly enantioenriched forms. Also disclosed are catalysts useful in the disclosed processes.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: September 14, 2021
    Assignee: The Trustees of Boston College
    Inventors: Xiao-Xiang Zhang, Yang Hu
  • Publication number: 20210281670
    Abstract: A display panel and a terminal are disclosed. The display panel includes a transparent substrate; and a first display module disposed in a first area (1) of the transparent substrate and a second display module disposed in a second area (2) of the transparent substrate, where the first area (1) and the second area (2) are combined to form an entire display area, the first display module is an active matrix organic light-emitting diode (AMOLED) display module, and the second display module is a passive matrix organic light-emitting diode (PMOLED) display module.
    Type: Application
    Filed: May 21, 2021
    Publication date: September 9, 2021
    Applicant: VIVO MOBILE COMMUNICATION CO.,LTD.
    Inventors: Wen WU, Qiang ZHANG, Xiang ZHANG
  • Publication number: 20210268139
    Abstract: The present invention relates to a sodium polyacrylate super absorbent resin for blood absorption with a gradual hierarchical structure. When a blood simulant solution is used as the detection medium, according to ISO 19699-1:2017(E), the absorption capacity of the blood simulant solution is ?18.0 g/g, Preferably ?18.5 g/g; the absorption rate of the blood simulant solution is ?45 s, preferably ?40 s, more preferably ?38 s; when human blood is used as the detection medium, according to ISO 19699-1:2017(E), the absorption capacity of the human blood is ?8.0 g/g, preferably ?8.3 g/g, more preferably ?8.6 g/g; the absorption rate of the human blood is ?45 s, preferably ?40 s, more preferably ?35 s, most preferably ?25 s.
    Type: Application
    Filed: June 22, 2018
    Publication date: September 2, 2021
    Inventors: Zhiliang YANG, Hao YANG, Yanyu MA, Yang YANG, Xiang ZHANG, Meiqin YAO, Jinshui YAO
  • Publication number: 20210256737
    Abstract: A method for coding information of a point cloud comprises obtaining the point cloud including a set of points in a three-dimensional space; partitioning the point cloud into a plurality of objects and generating occupancy information for each of the plurality of objects; and encoding the occupancy information by taking into account the distance between the plurality of objects.
    Type: Application
    Filed: October 26, 2020
    Publication date: August 19, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Xiang Zhang, Wen Gao, Shan Liu
  • Patent number: 11091555
    Abstract: This application relates to uses of antibodies against fibroblast growth factor receptor 2 (FGFR2), including antibodies against the FGFR2 isoform FGFR2-IIIb (also known as FGFR2b), in treatment of certain cancers in combinations with mFOLFOX6 chemotherapy.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: August 17, 2021
    Assignee: Five Prime Therapeutics, Inc.
    Inventors: Helen L. Collins, James Hnatyszyn, Hong Xiang, Xiang Zhang
  • Publication number: 20210248784
    Abstract: A method and apparatus for coding information of a point cloud may be performed by at least one processor and comprises: obtaining the point cloud including a set of points in a three-dimensional space; partitioning the point cloud into a tree structure comprising a plurality of nodes at different depths; encoding geometry information of the nodes; and encoding attribute information of the nodes before the entire point cloud is partitioned.
    Type: Application
    Filed: October 30, 2020
    Publication date: August 12, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Wen GAO, Xiang ZHANG, Shan LIU
  • Publication number: 20210250618
    Abstract: A method of decoding encoded information of a point cloud may be performed by at least one processor and comprises: obtaining an encoded bitstream, the encoded bitstream including encoded information of a point cloud including a set of points in a three-dimensional space; and determining a type of partitioning used to encode the information of the point cloud by at least one of parsing signals of at least three binary syntaxes or inferring at least one syntax of the at least three binary syntaxes.
    Type: Application
    Filed: October 30, 2020
    Publication date: August 12, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Xiang Zhang, Wen Gao, Shan Liu
  • Publication number: 20210248785
    Abstract: A method and device for decoding a point cloud using octree partitioning and a predictive tree include obtaining the point cloud. A bounding box of the point cloud is determined. Octree nodes are generated by partitioning the bounding box using octree partitioning. The predictive tree is generated for points in at least one octree node of the octree nodes. A transform is applied to the predictive tree. The points in the at least one octree node are decoded using the predictive tree.
    Type: Application
    Filed: November 13, 2020
    Publication date: August 12, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Xiang ZHANG, Wen Gao, Shan Liu
  • Publication number: 20210250594
    Abstract: A method, a non-transitory computer readable medium, and a computer system is provided for encoding or decoding video data. The method may include: receiving an entropy coded bitstream comprising compressed video data including point cloud occupancy codes; generating one or more dequantized dimensions of a boundary box of a point cloud; based on determining that the node or node depth has attribute information, using the attribute information for the node or node depth; and based on determining that the node or node depth does not have attribute information, obtaining attribute information for the node or node depth by inheriting attribute information from a node or node depth that is at least one depth level in an octree of the point cloud above a depth level of the node or node depth in the octree.
    Type: Application
    Filed: December 17, 2020
    Publication date: August 12, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Wen GAO, Xiang ZHANG, Shan LIU
  • Patent number: 11074243
    Abstract: The disclosed embodiments include a system for processing data. During operation, the system obtains, for a field in a data object, a set of diffs containing default values for the field and a set of mappings representing a set of conditions associated with the data object. Next, the system matches an attribute associated with an instance of the data object to a condition in the set of conditions. The system then uses the mappings to identify, in the set of diffs, a diff to be applied under the condition. Finally, the system updates the field in the instance with a default value associated with the condition by applying the diff to the instance.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: July 27, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Sirish Kumar Balaga, Xiang Zhang, Kevin Tse-Long Fu, Sriram Panyam
  • Patent number: D929938
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: September 7, 2021
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Xiang Zhang, Yan Chen, Qi Yu, Chong Xing Zheng, Xing Long Ma
  • Patent number: D930584
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: September 14, 2021
    Assignee: Vertiv Tech Co., Ltd.
    Inventors: Xin Xiang, Xiang Zhang, Chengyong Du