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: 11438628
    Abstract: A method, computer program, and computer system is provided for decoding point cloud data. Data corresponding to a point cloud is received. Hash elements corresponding to one or more neighboring nodes associated with a current node are identified. A size of a hash table is decreased based on deleting one or more of the hash elements corresponding to non-border regions of the one or more neighboring nodes. The data corresponding to the point cloud is decoded based on the hash table having the decreased size.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: September 6, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Xiang Zhang, Wen Gao, Shan Liu
  • Publication number: 20220273829
    Abstract: Disclosed herein are compounds having a structure according to Formula I and optionally Formula IV. The compounds may be radiolabeled compounds useful for diagnosis and/or imaging fungal infections. In such embodiments, at least one substituent is a radionuclide, such as 18F. Also disclosed are precursor compounds according to Formula I and/or IV that are useful for making the radiolabeled compounds. In such embodiments, the precursor compound comprises at least one leaving group suitable for introducing a radionuclide, such as 18F, at a desired position. Also disclosed are methods for making and using the compounds, including embodiments of a method for imaging and/or diagnosing a fungal infection in a subject.
    Type: Application
    Filed: July 31, 2020
    Publication date: September 1, 2022
    Applicant: THE UNITED STATES OF AMERICA, as represented by the Secretary, Department of Health and Human Servic
    Inventors: Dima A. Hammoud, Rolf Eric Swenson, Xiang Zhang, Swati Shah, Peter R. Williamson, Zhen-Dan Shi
  • Publication number: 20220277495
    Abstract: A method for determining a collision range includes: determining a grid plane corresponding to a model, the grid plane including a plurality of grid regions; projecting the model to the grid plane and obtaining height information of the model with respect to the grid plane, the height information of the model including grid height information corresponding to a grid region that identifies a height of a sub-model in the model with respect to the grid plane, and the sub-model being a portion of the model in a projection space of the grid region; and obtaining a collision range of the model according to the grid plane and the height information.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 1, 2022
    Inventors: Xiang ZHANG, Yi LIU
  • Publication number: 20220272381
    Abstract: Aspects of the disclosure provide methods, apparatuses, and a non-transitory computer-readable medium for point cloud compression and decompression. In a method, an octree partitioning structure for a bounding box of a point cloud is determined. Whether parallel encoding is to be performed on occupancy codes of nodes in a range of one or more partitioning depths in the octree partitioning structure is determined. The parallel encoding on the occupancy codes of the nodes is performed in response to the parallel encoding being determined to be performed on the occupancy codes of the nodes in the range of the one or more partitioning depths in the octree partitioning structure. A coded bitstream is generated based on the encoded occupancy codes of the nodes. The coded bitstream includes syntax information that indicates whether parallel decoding is to be performed on the occupancy codes of the nodes in the range.
    Type: Application
    Filed: May 11, 2022
    Publication date: August 25, 2022
    Applicant: Tencent America LLC
    Inventors: Xiang ZHANG, Wen GAO, Shan LIU
  • Patent number: 11417030
    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: Grant
    Filed: October 26, 2020
    Date of Patent: August 16, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Xiang Zhang, Wen Gao, Shan Liu
  • Patent number: 11417029
    Abstract: Aspects of the disclosure provide methods and apparatuses for point cloud compression. In some examples, an apparatus for point cloud compression includes processing circuitry. In some embodiments, the processing circuitry determines one or more original points in a point cloud that are associated with a reconstructed position. Positions of the one or more original points can be reconstructed, according to a geometry quantization, to the reconstructed position. The processing circuitry then determines an attribute value for the reconstructed position based on attribute information of the one or more original points, and encodes texture of the point cloud with the reconstructed position having the determined attribute value.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: August 16, 2022
    Assignee: Tencent America LLC
    Inventors: Xiang Zhang, Wen Gao, Shan Liu
  • Publication number: 20220248054
    Abstract: Aspects of the disclosure include a method for point cloud coding. In the method, whether decoding of occupancy codes of nodes in a range of octree partition depths in an octree partitioning structure of a point cloud reaches a minimum octree partition depth at which parallel decoding is enabled is determined. Arithmetic coding information for decoding the occupancy codes of the nodes in the minimum octree partition depth is stored based on the decoding of the occupancy codes of the nodes in the range of octree partition depths reaching the minimum octree partition depth. The parallel decoding is performed on occupancy codes of the nodes in each of the at least one remaining octree partitions depth based on the stored arithmetic coding information. The point cloud is reconstructed based on the occupancy codes of the nodes in the range of octree partition depths in the octree partitioning structure.
    Type: Application
    Filed: April 19, 2022
    Publication date: August 4, 2022
    Applicant: Tencent America LLC
    Inventors: Xiang ZHANG, Wen GAO, Shan LIU
  • Publication number: 20220248053
    Abstract: Aspects of the disclosure provide methods, apparatuses, and a non-transitory computer-readable medium for point cloud coding. In a method, when parallel octree coding is enabled for occupancy codes of nodes in an octree partitioning structure of the point cloud, syntax information of the point cloud is decoded from a coded bitstream and a bitstream offset of an octree depth is determined. The syntax information indicates a bitstream length of the octree depth at which the parallel octree coding is enabled. Parallel decoding is performed on the occupancy codes of the nodes of the octree depth based on the bitstream offset and the bitstream length of the octree depth. Further, the point cloud is reconstructed based on the occupancy codes of the nodes.
    Type: Application
    Filed: April 19, 2022
    Publication date: August 4, 2022
    Applicant: Tencent America LLC
    Inventors: Xiang ZHANG, Wen GAO, Shan LIU
  • Patent number: 11399192
    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: Grant
    Filed: December 17, 2020
    Date of Patent: July 26, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Wen Gao, Xiang Zhang, Shan Liu
  • Publication number: 20220232253
    Abstract: In some examples, an apparatus for point cloud compression/decompression includes processing circuitry. The processing circuitry determines a flag that indicates an enable/disable control for saving coding state in a largest coding unit (LCU) based coding of a point cloud. In some examples, the processing circuitry stores coding state information before a coding of a first LCU; and in response to the flag indicating an enable control, the processing circuitry restores, a coding state according to the stored coding state information before a coding of a second LCU. In some examples, in response to the flag indicating an enable control, the processing circuitry stores the coding state information before the coding of the first LCU. In some examples, in response to the flag indicating a disable control, the processing circuitry skip the storing/restoring of the coding state information.
    Type: Application
    Filed: August 17, 2021
    Publication date: July 21, 2022
    Applicant: TENCENT AMERICA LLC
    Inventors: Wen GAO, Xiang ZHANG, Shan LIU
  • Patent number: 11383179
    Abstract: This disclosure concerns a system and a method for removing dissolved solids from liquids. Specific implementations concern desalinating water. The system may comprise a blower, such as a thermal fan/compressor, configured to atomize a solid-bearing liquid to produce a hot, humid gas containing dissolved solids; a gas-solid separator configured to receive hot, humid gas containing entrained dissolved solids from the blower to separate the solids from the humid gas and to transmit the humid gas with solids removed through an exit port; a heater configured to heat the hot, humid gas received from the exit port of the gas-solid separator; and a condenser configured to receive heated humid gas from the heater and to condense solids-free liquid therefrom. The thermal fan/compressor may comprise a plurality of nozzles with outlets positioned adjacent atomization apertures across which a solid-bearing liquid flows and through which gas exiting the nozzles passes.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: July 12, 2022
    Assignee: Oregon State University
    Inventors: Bahman Abbasi, Xiang Zhang, Mohammed Abbas Elhashimi Khalifa, Deepak Sharma
  • Publication number: 20220217864
    Abstract: Disclosed are a power supply module housing and a power supply module comprising same. The power supply module housing comprises a main housing, the main housing is provided with a maintenance and installation opening for facilitating the maintenance and installation of the power supply module, and a skylight cover plate detachably covers the maintenance and installation opening. The power supply module comprises the power supply module housing, a connecting terminal is installed in the power supply module housing, and the skylight cover plate is provided at the position corresponding to the connecting terminal. According to the present application, additionally providing the maintenance and installation opening and the skylight cover plate on a top cover enables wiring to be performed without removing the top cover in a field wiring work, thereby simplifying the steps of field wiring, and reducing the risk during work at height.
    Type: Application
    Filed: August 1, 2019
    Publication date: July 7, 2022
    Applicant: VERTIV TECH CO., LTD.
    Inventors: Xin XIANG, Xiang ZHANG
  • Patent number: 11378225
    Abstract: Display assemblies for supporting displays on stands or support arms have mount portions to removably attach to the displays using magnetic assemblies and latches. The magnetic assemblies and latches can improve user experience and allow the display to be installed on a support arm from the viewing side of the display and without having to see or reach behind the display. Magnetic structures can center a mount portion of the support arm and a recess of the display and can attract them to each other. Laterally-extending latches can ensure the display is not inadvertently removed. Locking mechanisms can prevent the display from being rotated to a portrait orientation when sufficient space around the display and the necessary user intent is not provided.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: July 5, 2022
    Assignee: APPLE INC.
    Inventors: Kristopher P. Laurent, Bradley J. Hamel, Brett W. Degner, David H. Narajowski, Hao Zhu, Lauren M. Farrell, Sunita Venkatesh, Peter N. Jeziorek, Edward T. Sweet, David A. Jungquist, Karen Y. Cheng, Xiang Zhang, Danny L. McBroom, Michael D. McBroom, Laura M. DeForest
  • Patent number: 11381840
    Abstract: A method of point cloud geometry decoding in a point cloud decoder can include receiving a bitstream including a slice of a coded point cloud frame, and reconstructing an octree representing a geometry of points in a bounding box of the slice where a current node of the octree is partitioned with a quadtree (QT) partition or a binary tree (BT) partition.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: July 5, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Xiang Zhang, Wen Gao, Sehoon Yea, Shan Liu
  • Patent number: 11381725
    Abstract: An electronic device and a method for controlling a camera module are provided according to implementations of the present disclosure. The electronic device includes a housing, a camera module, a pushing mechanism, and a reversing mechanism. The camera module disposed in the housing. The pushing mechanism is configured to drive the camera module to move from an inside of the housing to an outside of the housing. The reversing mechanism is configured to reverse the camera module when the camera module is moved to the outside of the housing.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: July 5, 2022
    Assignees: GUANGDONG OPPO MOBILE, TELECOMMUNICATIONS CORP., LTD.
    Inventors: Xiang Zhang, Zanjian Zeng
  • Publication number: 20220210472
    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: March 17, 2022
    Publication date: June 30, 2022
    Applicant: TENCENT AMERICA LLC
    Inventors: Wen GAO, Xiang ZHANG, Shan LIU
  • Publication number: 20220197328
    Abstract: An optical computing device and a computing method are provided, to provide an optical Ising machine with high operation efficiency. The optical computing device includes a first spin array, an optical feedback network, and a second spin array, where the optical feedback network is separately connected to the first spin array and the second spin array. The first spin array may receive a first group of signals including N optical pulses or N electrical signals, and generate a first group of spin signals including N spin signals. The optical feedback network may receive the first group of spin signals, and generate, based on the first group of spin signals and specified first data, a first group of feedback signals including N feedback signals. The first spin array and the second spin array may process a plurality of signals in parallel, to improve computation efficiency of the optical computing device.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 23, 2022
    Inventors: Zhiqiang YUN, Xiang ZHANG, Xiaowen DONG
  • Publication number: 20220201331
    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: March 14, 2022
    Publication date: June 23, 2022
    Applicant: TENCENT AMERICA LLC
    Inventors: Xiang ZHANG, Wen Gao, Shan Liu
  • Patent number: 11368717
    Abstract: Aspects of the disclosure provide methods, apparatuses, and a non-transitory computer-readable medium for point cloud compression and decompression. In a method, syntax information of a bounding box of a point cloud is decoded from a coded bitstream. The syntax information indicates an octree partitioning structure for the bounding box of the point cloud. Whether the syntax information indicates that parallel decoding is to be performed on occupancy codes of nodes in a range of one or more partitioning depths in the octree partitioning structure is determined. The parallel decoding is performed on the occupancy codes of the nodes in response to the syntax information indicating that the parallel decoding is to be performed on the occupancy codes of the nodes in the range of the one or more partitioning depths in the octree partitioning structure. The bounding box is reconstructed based on the occupancy codes of the nodes.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: June 21, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Xiang Zhang, Wen Gao, Shan Liu
  • Publication number: 20220190603
    Abstract: Disclosed are a power optimization method and an apparatus therefor, and a photovoltaic device and a photovoltaic system. The power optimization of a photovoltaic assembly can be realized when a series connection architecture or a parallel connection architecture is used for the photovoltaic assembly. The method includes: power optimization apparatuses carrying out MPPT processing on photovoltaic assemblies according to operating parameters of the photovoltaic assemblies corresponding to the power optimization apparatuses on a one-to-one basis (101); and controlling the photovoltaic assemblies according to MPPT processing results so that power states of the photovoltaic assemblies are optimized (102). By means of providing a power optimization apparatus for each photovoltaic assembly, the power optimization apparatus carries out MPPT processing on the corresponding photovoltaic assembly, thereby preventing the occurrence of power mismatch.
    Type: Application
    Filed: June 24, 2019
    Publication date: June 16, 2022
    Inventors: Meng LI, Shiyong JIANG, Meng HUANG, Xuefen ZHANG, Xiang ZHANG, Fulong CHE