Patents by Inventor Lei Wei

Lei Wei 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: 12266140
    Abstract: A method for level partition of a point cloud includes that: a point cloud bitstream is decoded; a maximum permissible value of a first syntax element in the point cloud bitstream is determined as a constant value; the first syntax element is decoded to obtain a value of the first syntax element; a number of levels of detail (LODs) in a process of decoding the attribute information is determined according to the value of the first syntax element; and the attribute information is decoded according to the number of the LODs and the geometry information, to determine a reconstructed point cloud of the point cloud.
    Type: Grant
    Filed: April 11, 2024
    Date of Patent: April 1, 2025
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Shuai Wan, Lei Wei, Fuzheng Yang, Xiaobin Ding
  • Patent number: 12225241
    Abstract: An intra prediction method and a decoder are provided. The method includes the following. Coordinate information of a current node and a current level corresponding to the current node are determined. A current quantity is determined based on the current level, where the current quantity is positively correlated with the current level. Current neighbour nodes are determined based on the coordinate information of the current node, where the current neighbour nodes are neighbour nodes of the current quantity among neighbour nodes of a parent node of the current node. Intra prediction is performed on the current node based on the coordinate information of the current node and the current neighbour nodes.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: February 11, 2025
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Shuai Wan, Fuzheng Yang, Lei Wei, Zhecheng Wang
  • Publication number: 20250041447
    Abstract: Provided are compositions and methods for selectively killing cancer cells. The method includes obtaining one or more biological samples from an individual, determining different nucleotide sequences in cancer and non-cancer cells from the biological sample using an algorithm to identify a candidate target sequence that is present in the cancer cells and not present in the non-cancer cells. Based on the different nucleotide sequences in the cancer cells relative to the non-cancer cells a CRISPR Cas3 system that includes a guide RNA targeted to an identified segment of the chromosome that is linked to the target sequence is degraded.
    Type: Application
    Filed: December 16, 2022
    Publication date: February 6, 2025
    Inventors: Ailong KE, Lei WEI
  • Publication number: 20250048652
    Abstract: Methods, systems, and devices for efficient fabrication of memory structures are described. A multi-deck memory device may be fabricated using a sequence of fabrication steps that include depositing a first metal layer, depositing a cell layer on the first metal layer to form memory cells of the first memory deck, and depositing a second metal layer on the cell layer. The second metal layer may be deposited using a single deposition process rather than using multiple deposition processes. A second memory deck may be formed on the second metal layer such that stacked memory cells from the first and second deck share the use of the second metal layer. Using a single deposition process for the second metal layer may decrease the quantity of fabrication steps used to fabricate the multi-deck memory array and reduce or eliminate the exposure of the cell material to metal etchants.
    Type: Application
    Filed: August 13, 2024
    Publication date: February 6, 2025
    Inventors: Don Koun Lee, Kevin Lee Baker, Lei Wei
  • Patent number: 12144188
    Abstract: Some embodiments include an arrangement having a memory tier with memory cells on opposing sides of a coupling region. First sense/access lines are under the memory cells, and are electrically connected with the memory cells. A conductive interconnect is within the coupling region. A second sense/access line extends across the memory cells, and across the conductive interconnect. The second sense/access line has a first region having a second conductive material over a first conductive material, and has a second region having only the second conductive material. The first region is over the memory cells, and is electrically connected with the memory cells. The second region is over the conductive interconnect and is electrically coupled with the conductive interconnect. An additional tier is under the memory tier, and includes CMOS circuitry coupled with the conductive interconnect. Some embodiments include methods of forming multitier arrangements.
    Type: Grant
    Filed: January 20, 2023
    Date of Patent: November 12, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Lei Wei, Hongqi Li
  • Patent number: 12079381
    Abstract: This application discloses a motion platform, a haptic feedback device, and a human-computer interactive system. The motion platform includes a first platform, a second platform and a linkage assembly, the first platform and the second platform being connected by the linkage assembly, the second platform being configured to move relative to the first platform. The first platform comprises a first power take-off and a second power take-off, the first power take-off comprising a first output shaft and the second power take-off comprising a second output shaft. The linkage assembly comprises a first parallelogram linkage mechanism and a second parallelogram linkage mechanism connected to each other, and a two-bar linkage mechanism. The two-bar linkage mechanism and the first parallelogram linkage mechanism have the same plane of motion, and the second output shaft being configured to drive motion of the two-bar linkage mechanism.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: September 3, 2024
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Dongsheng Zhang, Lei Wei, Ke Chen, Qiang Li, Zhengyou Zhang
  • Patent number: 12080034
    Abstract: Provided is a method for predicting attribute information, a coder, a decoder, and a storage medium. The coder determines a current Morton code corresponding to a point to be predicted in a point cloud to be coded, determines a target Morton code corresponding to the point to be predicted based on the current Morton code and according to a preset neighbor information table, judges whether a neighbor point of the point to be predicted exists in the point cloud to be coded according to the target Morton code, and performs prediction to obtain a predicted attribute value of the point to be predicted according to attribute reconstruction information of the neighbor point in response to that the neighbor point exists in the point cloud to be coded.
    Type: Grant
    Filed: April 14, 2023
    Date of Patent: September 3, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Shuai Wan, Lei Wei, Fuzheng Yang, Junyan Huo, Yanzhuo Ma, Lihui Yang
  • Patent number: 12082425
    Abstract: Methods, systems, and devices for efficient fabrication of memory structures are described. A multi-deck memory device may be fabricated using a sequence of fabrication steps that include depositing a first metal layer, depositing a cell layer on the first metal layer to form memory cells of the first memory deck, and depositing a second metal layer on the cell layer. The second metal layer may be deposited using a single deposition process rather than using multiple deposition processes. A second memory deck may be formed on the second metal layer such that stacked memory cells from the first and second deck share the use of the second metal layer. Using a single deposition process for the second metal layer may decrease the quantity of fabrication steps used to fabricate the multi-deck memory array and reduce or eliminate the exposure of the cell material to metal etchants.
    Type: Grant
    Filed: March 21, 2023
    Date of Patent: September 3, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Don Koun Lee, Kevin Lee Baker, Lei Wei
  • Publication number: 20240282009
    Abstract: Disclosed are a point cloud encoding and decoding method, and a decoder. The method includes: acquiring geometric information and attribute information of an input point cloud; determining a maximum allowable value of a sampling period when the input point cloud is subjected to level-of-detail (LOD) division; determining a preset value of the sampling period on the basis of the maximum allowable value of the sampling period; processing the input point cloud according to the preset value of the sampling period and the geometric information, so as to obtain at least one refinement layer and at least one detail layer; and encoding the attribute information by using the at least one refinement layer and the at least one detail layer, so as to generate a code stream, and writing the preset value of the sampling period into the code stream.
    Type: Application
    Filed: April 29, 2024
    Publication date: August 22, 2024
    Inventors: SHUAI WAN, LEI WEI, FUZHENG YANG
  • Publication number: 20240271877
    Abstract: A flexible two-phase conversion heat transfer device includes a main body enclosing a chamber. A working liquid is received in the chamber. A capillary structure body is disposed in the chamber. The main body has at least one bellows section. The bellows section has multiple waved stripes. Each waved stripe has a waved stripe width. The waved stripe widths are unequal to each other. The main body is bendable by an angle ranging from 0-180 degrees without interference between the waved stripes.
    Type: Application
    Filed: April 3, 2024
    Publication date: August 15, 2024
    Inventors: Han-Min Liu, Xiao-Xiang Zhou, Shi-Lei Wei
  • Publication number: 20240257404
    Abstract: A method for level partition of a point cloud includes that: a point cloud bitstream is decoded; a maximum permissible value of a first syntax element in the point cloud bitstream is determined as a constant value; the first syntax element is decoded to obtain a value of the first syntax element; a number of levels of detail (LODs) in a process of decoding the attribute information is determined according to the value of the first syntax element; and the attribute information is decoded according to the number of the LODs and the geometry information, to determine a reconstructed point cloud of the point cloud.
    Type: Application
    Filed: April 11, 2024
    Publication date: August 1, 2024
    Inventors: Shuai WAN, Lei WEI, Fuzheng YANG, Xiaobin DING
  • Patent number: 12026920
    Abstract: Disclosed are a point cloud encoding and decoding method, an encoder and a decoder. The method comprises: acquiring geometric information and attribute information of an input point cloud; determining a maximum allowable value of a sampling period when the input point cloud is subjected to level-of-detail (LOD) division; determining a preset value of the sampling period on the basis of the maximum allowable value of the sampling period; processing the input point cloud according to the preset value of the sampling period and the geometric information, so as to obtain at least one refinement layer and at least one detail layer; and encoding the attribute information by using the at least one refinement layer and the at least one detail layer, so as to generate a code stream, and writing the preset value of the sampling period into the code stream.
    Type: Grant
    Filed: June 28, 2023
    Date of Patent: July 2, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Shuai Wan, Lei Wei, Fuzheng Yang
  • Publication number: 20240195953
    Abstract: A method for intra prediction includes: determining occupancy information of a first number of neighboring nodes of a coded node; determining occupancy information of a second number of neighboring nodes of the coded node based on a position association between at least one neighboring node of the coded node and a child node of the coded node, where the first number is greater than the second number; determining an occupancy number corresponding to the second number of neighboring nodes based on the occupancy information of the second number of neighboring nodes; and determining an occupancy prediction result of the child node of the coded node based on the occupancy number. A decoder and a method for intra prediction performed by the decoder are also provided.
    Type: Application
    Filed: February 8, 2024
    Publication date: June 13, 2024
    Inventors: Shuai WAN, Fuzheng YANG, Zhecheng WANG, Lei WEI
  • Publication number: 20240162156
    Abstract: Methods, systems, and devices for reduced resistivity for access lines in a memory array are described. A first metal layer may be formed above a via that is configured to couple an access line of a memory array with a corresponding driver. The first metal layer may be oxidized, and then a second metal layer may be formed above the oxidized first metal layer. One or more access lines of the memory device may be formed from the second metal layer, the oxidized first metal layer, or both.
    Type: Application
    Filed: November 17, 2023
    Publication date: May 16, 2024
    Inventors: Lei Wei, Adam Thomas Barton
  • Patent number: 11983905
    Abstract: A method for level partition of a point cloud includes: decoding a point cloud bitstream, the point cloud bitstream including geometry information and attribute information of the point cloud; determining a maximum permissible value of a first syntax element in the point cloud bitstream; parsing the point cloud bitstream to determine a value of the first syntax element according to the maximum permissible value; determining, according to the value of the first syntax element, a number of levels of detail (LODs) in a process of decoding the attribute information; and decoding the attribute information according to the number of the LODs and the geometry information, to determine a reconstructed point cloud of the point cloud.
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: May 14, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Shuai Wan, Lei Wei, Fuzheng Yang, Xiaobin Ding
  • Patent number: 11976884
    Abstract: A flexible two-phase conversion heat transfer device includes a main body enclosing a chamber. A working liquid is received in the chamber. A capillary structure body is disposed in the chamber. The main body has at least one bellows section. The bellows section has multiple waved stripes. The waved stripes at least have a waved stripe feature including a waved stripe height or a waved stripe width or a waved stripe pitch between each two adjacent waved stripes. By means of the different waved stripe features, the main body is bendable by an angle ranging from 0-180 degrees without interference between the waved stripes.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: May 7, 2024
    Assignee: Asia Vital Components (China) Co., Ltd.
    Inventors: Han-Min Liu, Xiao-Xiang Zhou, Shi-Lei Wei
  • Patent number: 11936850
    Abstract: A method for intra prediction includes: enabling intra prediction, and determining occupancy information of a first number of neighboring nodes of a coded node; determining occupancy information of a second number of neighboring nodes of the coded node based on a position association between at least one neighboring node of the coded node and a child node of the coded node, where the first number is greater than the second number; and determining an occupancy prediction result of the child node of the coded node based on the occupancy information of the second number of neighboring nodes. An encoder for implementing the above method is also provided.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: March 19, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Shuai Wan, Fuzheng Yang, Zhecheng Wang, Lei Wei
  • Publication number: 20240030412
    Abstract: The present disclosure relates to the technical field of batteries. Disclosed are a composite pole piece, a battery cell and a preparation method of the composite pole piece. The composite pole piece includes a supporting layer and an active composite layer. The supporting layer includes an insulating layer and a conductive layer arranged on a side of the insulating layer. The active composite layer is arranged on a side of the conductive layer far away from the insulating layer and includes an active layer and a metal foil layer. The active layer includes a plurality of active particles stacked on the conductive layer, and the metal foil layer is attached to the conductive layer and configured to fix the plurality of active particles on the conductive layer.
    Type: Application
    Filed: May 25, 2023
    Publication date: January 25, 2024
    Inventors: Hongjiang YU, Jicheng CHEN, Lei WEI, Rui WANG, Zhou XU
  • Patent number: 11830816
    Abstract: Methods, systems, and devices for reduced resistivity for access lines in a memory array are described. A first metal layer may be formed above a via that is configured to couple an access line of a memory array with a corresponding driver. The first metal layer may be oxidized, and then a second metal layer may be formed above the oxidized first metal layer. One or more access lines of the memory device may be formed from the second metal layer, the oxidized first metal layer, or both.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: November 28, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Lei Wei, Adam Thomas Barton
  • Patent number: 11815315
    Abstract: A flexible heat dissipation device includes an evaporator, a vapor tube, a liquid tube and a condenser. The evaporator has at least one vapor chamber. A capillary structure and a working fluid are received in the vapor chamber. Two ends of the vapor tube is respectively in communication with one end of the evaporator and the condenser. Two ends of the liquid tube are respectively in communication with the evaporator and the condenser, whereby the evaporator, the vapor tube, the condenser and the liquid tube form a loop for the working fluid to flow through. At least one bellows section is disposed on one or both of the vapor tube and the liquid tube. The bellows section has multiple waved stripes. More than one of the heights, widths and pitches of the multiple waved stripes are equal to or unequal to each other.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: November 14, 2023
    Assignee: Asia Vital Components (China) Co., Ltd.
    Inventors: Han-Min Liu, Xiao-Xiang Zhou, Shi-Lei Wei