Patents by Inventor Chuang Ma

Chuang Ma 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).

  • Publication number: 20250238965
    Abstract: A coding method and a storage medium are provided. The decoding method includes the following. A point cloud bitstream is decoded to obtain a first flag, where the first flag indicates whether attribute coefficients of at least two first attribute components of a current point are each a first value. When the first flag indicates that the attribute coefficients of the at least two first attribute components are each the first value, it is determined that a first attribute coefficient of a second attribute component of the current point is equal to a second attribute coefficient of the second attribute component plus 1. The second attribute coefficient of the second attribute component is parsed from the point cloud bitstream, and the second attribute component is different from the at least two first attribute components.
    Type: Application
    Filed: April 11, 2025
    Publication date: July 24, 2025
    Inventor: Chuang MA
  • Publication number: 20240395851
    Abstract: A chip of a LED, comprising: a current blocking layer including a first current blocking layer grown along an epitaxial layer and a plurality of second current blocking layers disposed at one end of the first current blocking layer at intervals, the first current blocking layer gradually widens along a direction away from the second current blocking layers; a transparent conductive layer including a first transparent conductive layer and a second transparent conductive layer grown on the epitaxial layer, the first transparent conductive layer is grown on the current blocking layer and at least partially overlapped with the second current blocking layers; a metal finger electrode having a width gradually narrowed from the first end to the second end thereof and smaller than the width of the first current blocking layer, and the second current blocking layers are distributed around the first end of the metal finger electrode.
    Type: Application
    Filed: May 15, 2023
    Publication date: November 28, 2024
    Applicant: Focus Lightings Tech (Suqian) Co., Ltd.
    Inventors: Zhiqiang CHU, Hao CHEN, Shikang QU, Zhiqiang ZHANG, Chuang MA, Jie GAO, Zhen ZHANG, Qian ZHAO, Hebing WU, Yufei CAO
  • Patent number: 12051220
    Abstract: Provided are a point cloud attribute prediction method and prediction device based on a filter. The method comprises a coding method and a decoding method, and the device comprises a coding device and a decoding device. The method comprises: determining K nearest neighbor points of the current point; determining a filter matrix; and determining an attribute prediction value of the current point according to the filter matrix. Therefore, the compression performance of a point cloud attribute can be improved by means of selecting an appropriate filter.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: July 30, 2024
    Assignee: Peking University Shenzhen Graduate School
    Inventors: Ge Li, Chuang Ma, Jing Wang, Yi Ting Shao, Wen Gao
  • Publication number: 20240081051
    Abstract: Aspects of the disclosure provide a semiconductor device. The semiconductor device includes a memory stack of gate layers and insulating layers. The gate layers and the insulating layers are stacked alternatingly and are formed into stair steps in a staircase region. The semiconductor device includes a first landing pad on a first gate layer of a first stair step. The first gate layer is a top gate layer of the first stair step. The semiconductor device further includes a first sidewall isolation structure on a riser sidewall of a second gate layer of a second stair step. The second gate layer is a top gate layer of the second stair step and is stacked on the first gate layer in the memory stack. The first sidewall isolation structure isolates the second gate layer from the first landing pad.
    Type: Application
    Filed: September 1, 2022
    Publication date: March 7, 2024
    Applicant: Yangtze Memory Technologies Co., Ltd.
    Inventors: Zhen GUO, Wei XU, Bin YUAN, Chuang MA, Jiashi ZHANG, ZongLiang HUO
  • Publication number: 20230398382
    Abstract: Various embodiments described herein are directed to a face mask assembly configured with a drop-down feature and methods of using the same. In various embodiments, a face mask assembly comprises a face mask configured for dynamic engagement with a first strap of a strap assembly such that the face mask is configured for selective movement along a strap length of the first strap between a donned position and a drop-down position, the face mask comprising: a first strap pathway configured to receive at least a portion of the first strap and a strap engagement tongue positioned along the first strap pathway and comprising a plurality of strap engagement teeth protruding from of the interior tongue surface; wherein the face mask is configured to be selectively adjustable between a dynamic configuration and a locked configuration based on the arrangement of the first strap relative to the strap engagement tongue.
    Type: Application
    Filed: June 5, 2023
    Publication date: December 14, 2023
    Inventors: Chuang MA, Sheng ZHOU, Hongbing XIANG, Xiaojin HAN, Siwei WANG
  • Publication number: 20230326085
    Abstract: The present invention provides a point cloud attribute entropy encoding method and device, and a point cloud attribute entropy decoding method and device. The encoding method comprises: if an overall encoding processing condition of point cloud attribute residual coefficients is satisfied, performing overall encoding processing on the point cloud attribute residual coefficients, and then ending the encoding; and if not, performing local one-by-one encoding processing on the point cloud attribute residual coefficients until the encoding is ended. The entropy decoding method comprises: if an overall decoding processing condition of the point cloud attribute residual coefficients is satisfied, performing overall decoding processing on the point cloud attribute residual coefficients, and then ending the decoding; and if not, performing local one-by-one decoding processing on the point cloud attribute residual coefficients until the decoding is ended.
    Type: Application
    Filed: March 11, 2022
    Publication date: October 12, 2023
    Inventors: Ge LI, Chuang MA, Jing WANG, Yiting SHAO
  • Publication number: 20220249996
    Abstract: The present invention provides a filter, a respirator, and a method for manufacturing a filter. The filter is used in a respirator (100). The filter has a filter medium (1), and the filter medium (1) has a pleated structure.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 11, 2022
    Inventors: Xiaojin HAN, Chuang MA, Hongbing XIANG, Wei SHI, Hang TIAN
  • Publication number: 20220254057
    Abstract: Provided are a point cloud attribute prediction method and prediction device based on a filter. The method comprises a coding method and a decoding method, and the device comprises a coding device and a decoding device. The method comprises: determining K nearest neighbor points of the current point; determining a filter matrix; and determining an attribute prediction value of the current point according to the filter matrix. Therefore, the compression performance of a point cloud attribute can be improved by means of selecting an appropriate filter.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 11, 2022
    Inventors: Ge LI, Chuang MA, Jing WANG, Yi Ting SHAO, Wen GAO
  • Publication number: 20200288795
    Abstract: Embodiments relate generally to systems and methods for providing an anti-counterfeit element within a filtering mask. A method of manufacturing a filtering mask may comprise extruding a filtering material from a source of the filtering material; melt-blowing the extruded filtering material to form a plurality of fibers; collecting the melt-blown fibers onto an outer surface of a lathe, wherein the outer surface of the lathe comprises a logo pattern; forming a fiber material about the logo pattern on the outer surface of the lathe via the collected melt-blown fibers; removing the formed fiber material to create an anti-counterfeit layer for use in the filtering mask, wherein at least one surface of the anti-counterfeit layer comprises the logo pattern within the fiber material; and assembling the anti-counterfeit layer within the filtering mask.
    Type: Application
    Filed: November 30, 2017
    Publication date: September 17, 2020
    Inventors: Hong Bing XIANG, Weifeng SHEN, Yuzheng LU, Chuang MA
  • Patent number: 8834995
    Abstract: A coating includes a nano-composite layer including an equal number of films. The films are stacked on top of each other one after another. Each film includes a zirconium-copper carbonitride layer and a zirconium carbonitride layer.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: September 16, 2014
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huann-Wu Chiang, Cheng-shi Chen, Chuang Ma
  • Publication number: 20140037926
    Abstract: A coating includes a nano-composite layer including an equal number of films. The films are stacked on top of each other one after another. Each film includes a zirconium-copper carbonitride layer and a zirconium carbonitride layer.
    Type: Application
    Filed: October 9, 2013
    Publication date: February 6, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: HSIN-PEI CHANG, WEN-RONG CHEN, HUANN-WU CHIANG, CHENG-SHI CHEN, CHUANG MA
  • Patent number: 8580379
    Abstract: A coating includes a nano-composite layer including an equal number of films. The films are stacked on top of each other one after another. Each film includes a zirconium-copper carbonitride layer and a zirconium carbonitride layer.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: November 12, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huann-Wu Chiang, Cheng-Shi Chen, Chuang Ma
  • Patent number: 8541100
    Abstract: A coating includes a nano-composite layer including a plurality of films. The films are stacked together one after another. Each film includes a zirconium-copper carbonitride layer and a zirconium carbonitride layer.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: September 24, 2013
    Assignees: Hong Fu Jin Precision (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huann-Wu Chiang, Cheng-Shi Chen, Chuang Ma
  • Patent number: 8436258
    Abstract: An electromagnetic shielding article includes a plastic substrate; a nickel vanadium layer deposited on the plastic substrate; an electromagnetic shielding layer deposited on the plastic substrate; and a protection layer deposited on the electromagnetic shielding layer. A method for manufacturing the electromagnetic shielding article comprising steps of: providing a plastic substrate; depositing a nickel vanadium layer on the plastic substrate by radio-frequency induction plasma spraying process; depositing an electromagnetic shielding layer on the nickel vanadium layer; and depositing a protection layer on the electromagnetic shielding layer.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: May 7, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huann-Wu Chiang, Cheng-Shi Chen, Chuang Ma
  • Patent number: 8436257
    Abstract: An electromagnetic shielding article includes a plastic substrate, a silicon dioxide layer deposited on the plastic substrate, an electromagnetic shielding layer deposited on the plastic substrate, and a protection layer deposited on the electromagnetic shielding layer.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: May 7, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huann-Wu Chiang, Cheng-Shi Chen, Chuang Ma
  • Patent number: 8431239
    Abstract: A article made by vacuum deposition, includes a substrate; and a color layer deposited on the substrate, wherein the color layer has an L* value between about 75 to about 80, an a* value between about ?5 to about ?10, and a b* value between about 15 to about 20 in the CIE LAB color space.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: April 30, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huan-Wu Chiang, Cheng-Shi Chen, Chuang Ma
  • Patent number: 8367225
    Abstract: A coating includes a deposited layer. The deposited layer is a nickel-titanium carbonitride layer.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: February 5, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huan-Wu Chiang, Cheng-Shi Chen, Chuang Ma
  • Patent number: 8361639
    Abstract: A coating includes a nano-composite base comprising a number of films, the films stacked together one after another. Each film includes a nickel-titanium carbonitride layer and a titanium carbonitride layer.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: January 29, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huan-Wu Chiang, Cheng-Shi Chen, Chuang Ma
  • Patent number: D1052581
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: November 26, 2024
    Inventor: Chuang Ma
  • Patent number: D1061872
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: February 11, 2025
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Chuang Ma, Sheng Zhou, Hongbing Xiang, Xiaojin Han