Patents by Inventor Meng Cheng

Meng Cheng 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: 20220123353
    Abstract: The solid electrolyte membrane in this application has a first surface and a second surface opposite the first surface, where the first surface is provided with several micropores that extend into an interior of the solid electrolyte membrane without penetrating to the second surface. This application further provides a solid-state lithium metal battery, battery module, battery pack, and apparatus containing such solid electrolyte membrane. In the solid electrolyte membrane provided in this application, the micropores provided on the first surface of the solid electrolyte membrane do not penetrate to the opposite second surface, so that lithium ions can be induced to deposit in the micropores. This reduces the risk of lithium dendrites growing or even penetrating through the solid electrolyte membrane due to non-uniform deposition of lithium ions at other locations, thereby preventing short circuit of a solid-state lithium metal battery.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Jiawei FU, Chengyong LIU, Bobing HU, Qian LI, Meng CHENG, Yongsheng GUO
  • Publication number: 20220115666
    Abstract: This application provides a negative electrode plate, a lithium metal battery, and an apparatus including the lithium metal battery. The negative electrode plate includes a negative electrode current collector and a lithium-metal negative electrode disposed on at least one surface of the negative electrode current collector, where a polymer protective film is disposed on a surface of the lithium-metal negative electrode away from the negative electrode current collector, the polymer protective film includes a citric acid copolymer, and a number-average molecular weight Mn of the citric acid copolymer is 10,000 to 1,000,000. In this application, a polymer protective film with high tensile strength, high puncture strength, high elongation, and high electrolyte holding capacity may be formed on the surface of the lithium-metal negative electrode in the negative electrode plate.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Qian LI, Meng CHENG, Chengyong LIU, Bobing HU, Jiawei FU, Shengyuan HUANG, Yongsheng GUO
  • Publication number: 20220109180
    Abstract: The present application discloses a lithium metal battery, a process for preparing the same, an apparatus containing the lithium metal battery, and a negative electrode plate. The lithium metal battery includes a positive electrode plate, a negative electrode plate and an electrolyte, the positive electrode plate including a positive electrode current collector and a positive electrode active material layer arranged on at least one surface of the positive electrode current collector and comprising a positive electrode active material, wherein the negative electrode plate includes a polymer material base layer; and a lithium-based metal layer that is directly bonded to at least one surface of the polymer material base layer.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Qian LI, Chengyong Liu, Yongshen Guo, Jiawei Fu, Bobing Hu, Meng Cheng
  • Publication number: 20220069355
    Abstract: This application provides a lithium metal battery, and relates to the battery field. The lithium metal battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolytic solution infiltrating the separator. The negative electrode includes a negative electrode current collector and a lithium-aluminum alloy layer disposed on at least one surface of the negative electrode current collector; and the electrolytic solution includes an electrolyte and a solvent, where the solvent contains a film-forming agent, and the film-forming agent is FEC and/or DFEC.
    Type: Application
    Filed: November 8, 2021
    Publication date: March 3, 2022
    Inventors: Meng CHENG, Chengyong LIU, Bobing HU, Yongsheng GUO, Jiawei FU, Qian LI, Chengdu LIANG
  • Patent number: 11217822
    Abstract: The present application provides a preparation method for a solid electrolyte, including: acquiring an initial reaction mixture including a lithium precursor, a central atom ligand and an organic solvent; acquiring a modified solution including a borate ester and the organic solvent; mixing the initial reaction mixture and the modified solution, and drying to acquire an initial product; performing a grinding, cold press and heat treatment to the initial product to obtain the solid electrolyte. In the preparation method provided by the present application, a B and O co-doped sulphide solid electrolyte can be obtained by modifying the sulphide solid electrolyte with the borate ester as a doping raw material. The ionic conductivity of the prepared sulphide solid electrolyte is significantly improved, which is also conducive to improvement of energy density of the all-solid-state batteries.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: January 4, 2022
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Chengdu Liang, Chengyong Liu, Bobing Hu, Jiawei Fu, Qian Li, Meng Cheng, Yongsheng Guo
  • Patent number: 11108597
    Abstract: Example data transmission methods and apparatus are described. One example method includes obtaining at least two signature sequences used to perform multiple access for at least two to-be-sent data packets by a user equipment. The user equipment processes the at least two data packets by respectively using corresponding signature sequences, to obtain at least two transmit sequences. The user equipment sends the at least two transmit sequences to a network device on a same time-frequency resource. Then the network device obtains the at least two signature sequences used by the user equipment to send the at least two transmit sequences, and separately detects a corresponding transmit sequence based on each signature sequence, to obtain the at least two data packets. The user equipment can transmit a plurality of data packets on a same time-frequency resource in a same slot.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: August 31, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Meng Cheng, Xiuqiang Xu, Yiqun Wu, Yan Chen
  • Publication number: 20210257657
    Abstract: The present application provides a preparation method for a solid electrolyte, including: acquiring an initial reaction mixture including a lithium precursor, a central atom ligand and an organic solvent; acquiring a modified solution including a borate ester and the organic solvent; mixing the initial reaction mixture and the modified solution, and drying to acquire an initial product; performing a grinding, cold press and heat treatment to the initial product to obtain the solid electrolyte. In the preparation method provided by the present application, a B and O co-doped sulphide solid electrolyte can be obtained by modifying the sulphide solid electrolyte with the borate ester as a doping raw material. The ionic conductivity of the prepared sulphide solid electrolyte is significantly improved, which is also conducive to improvement of energy density of the all-solid-state batteries.
    Type: Application
    Filed: June 17, 2020
    Publication date: August 19, 2021
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu LIANG, Chengyong LIU, Bobing HU, Jiawei FU, Qian LI, Meng CHENG, Yongsheng GUO
  • Patent number: 11070413
    Abstract: Embodiments of the present invention provide a resource mapping method. The method includes: obtaining a modulation symbol generated based on M code words, where M is a positive integer greater than or equal to 1; mapping the modulation symbol generated based on the M code words to a time-frequency resource in one or more mapping patterns, where the mapping pattern is a pattern of mapping every Q modulation symbols to one mapping unit, the mapping unit includes F resource units, F is a positive integer greater than or equal to 1, Q is a positive integer meeting 1?Q?F, the mapping pattern includes a sparse mapping pattern, and the sparse mapping pattern is a mapping pattern meeting F?2 and 1?Q<F; and sending the mapped modulation symbol generated based on the M code words.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: July 20, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Meng Cheng, Yiqun Wu, Lei Wang, Xiuqiang Xu, Yan Chen
  • Publication number: 20200368910
    Abstract: A collaborative-robot control system is provided in the invention. The collaborative-robot control system includes a plurality of test machines, a plurality of collaborative robots, a first control system and a second control system. The plurality of test machines are configured in a plurality of paths. When the second control system assigns a first collaborative robot of the plurality of collaborative robots in a waiting area to a first test machine in a first path of the plurality of paths and the first collaborative robot is being blocked by a second collaborative robot of the plurality of collaborative robots in the first path, the second control system generates a push-forward command and transmits the push-forward command to the first control system. The first control system sends the push-forward command to the second collaborative robot to order the second collaborative robot to leave the first path first.
    Type: Application
    Filed: May 20, 2020
    Publication date: November 26, 2020
    Applicant: Winbond Electronics Corp.
    Inventors: Te-Wei CHU, Chen-Meng CHENG, Chun-Ming HUANG, Kuang-Tai CHEN, Yu-Jen CHANG, Tsung-Hsien WU
  • Patent number: 10790926
    Abstract: The present disclosure discloses a data processing method, a network device, and a terminal. In this method, a transmit end combines basic modulation symbols obtained after basic modulation is performed on all layers of data, to obtain a combined symbol vector X. The transmit end maps the symbol vector X to Q resource elements to obtain a data vector S. A symbol quantity of the symbol vector X is greater than a symbol quantity of the data vector S. The symbol quantity of the data vector S is Q. Q is a positive integer. Therefore, non-orthogonal spreading and superposition transmission of a plurality of terminals can be implemented in both uplink and downlink, thereby effectively improving transmission efficiency.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: September 29, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Meng Cheng, Yiqun Wu, Yan Chen
  • Patent number: 10547486
    Abstract: A data transmission method and apparatus are provided. The method includes: modulating, based on a codebook, every N information bits of to-be-transmitted data into one M-dimensional modulation symbol, where the codebook is generated based on an M-dimensional modulation constellation, the M-dimensional modulation constellation includes M modulation constellations, a constellation point in an mth modulation constellation in the M modulation constellations is obtained by mapping N information bits based on an mth information bit subset, the mth information bit subset includes information bits on some locations in the N information bits, and a union set of M information bit subsets respectively corresponding to the M modulation constellations is the N information bits, where M and N are integers greater than or equal to 2, and m is 1, 2, . . . , or M; and sending the generated M-dimensional modulation symbol. The technical solutions can reduce complexity when a modulation signal is demodulated.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: January 28, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Meng Cheng, Yiqun Wu, Yan Chen
  • Publication number: 20190342121
    Abstract: Example data transmission methods and apparatus are described. One example method includes obtaining at least two signature sequences used to perform multiple access for at least two to-be-sent data packets by a user equipment. The user equipment processes the at least two data packets by respectively using corresponding signature sequences, to obtain at least two transmit sequences. The user equipment sends the at least two transmit sequences to a network device on a same time-frequency resource. Then the network device obtains the at least two signature sequences used by the user equipment to send the at least two transmit sequences, and separately detects a corresponding transmit sequence based on each signature sequence, to obtain the at least two data packets. The user equipment can transmit a plurality of data packets on a same time-frequency resource in a same slot.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Inventors: Meng CHENG, Xiuqiang XU, Yiqun WU, Yan CHEN
  • Publication number: 20190215222
    Abstract: A data transmission method and apparatus are provided. The method includes: modulating, based on a codebook, every N information bits of to-be-transmitted data into one M-dimensional modulation symbol, where the codebook is generated based on an M-dimensional modulation constellation, the M-dimensional modulation constellation includes M modulation constellations, a constellation point in an mth modulation constellation in the M modulation constellations is obtained by mapping N information bits based on an mth information bit subset, the mth information bit subset includes information bits on some locations in the N information bits, and a union set of M information bit subsets respectively corresponding to the M modulation constellations is the N information bits, where M and N are integers greater than or equal to 2, and m is 1, 2, . . . , or M; and sending the generated M-dimensional modulation symbol. The technical solutions can reduce complexity when a modulation signal is demodulated.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Meng CHENG, Yiqun WU, Yan CHEN
  • Publication number: 20190173711
    Abstract: Embodiments of the present invention provide a resource mapping method. The method includes: obtaining a modulation symbol generated based on M code words, where M is a positive integer greater than or equal to 1; mapping the modulation symbol generated based on the M code words to a time-frequency resource in one or more mapping patterns, where the mapping pattern is a pattern of mapping every Q modulation symbols to one mapping unit, the mapping unit includes F resource units, F is a positive integer greater than or equal to 1, Q is a positive integer meeting 1?Q?F, the mapping pattern includes a sparse mapping pattern, and the sparse mapping pattern is a mapping pattern meeting F?2 and 1?Q<F; and sending the mapped modulation symbol generated based on the M code words.
    Type: Application
    Filed: January 18, 2019
    Publication date: June 6, 2019
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Meng CHENG, Yiqun WU, Lei WANG, Xiuqiang XU, Yan CHEN
  • Publication number: 20190132076
    Abstract: The present disclosure discloses a data processing method, a network device, and a terminal. In this method, a transmit end combines basic modulation symbols obtained after basic modulation is performed on all layers of data, to obtain a combined symbol vector X. The transmit end maps the symbol vector X to Q resource elements to obtain a data vector S. A symbol quantity of the symbol vector X is greater than a symbol quantity of the data vector S. The symbol quantity of the data vector S is Q. Q is a positive integer. Therefore, non-orthogonal spreading and superposition transmission of a plurality of terminals can be implemented in both uplink and downlink, thereby effectively improving transmission efficiency.
    Type: Application
    Filed: December 13, 2018
    Publication date: May 2, 2019
    Inventors: MENG CHENG, Yiqun WU, Yan CHEN
  • Publication number: 20180186133
    Abstract: An adhesive composition is provided. The adhesive composition includes an organic silicon polymer, a silicon coupling agent, carboxylic polyester, and a solvent. Based on the total weight of the adhesive composition, the content of the organic silicon polymer is 10 wt % to 60 wt %, the content of the silicon coupling agent is 10 wt % to 60 wt %, and the content of the carboxylic polyester is 10 wt % to 60 wt %.
    Type: Application
    Filed: March 3, 2017
    Publication date: July 5, 2018
    Applicant: TAIFLEX Scientific Co., Ltd.
    Inventors: Hsiu-Chu Wu, Meng-Cheng Tsai, Chung-Hsiao Lai
  • Publication number: 20170241430
    Abstract: A combined fan for cooling a heat source includes a hub and multiple blades. The hub has a first side and a second side opposite to each other. The blades are distributed along an outer circumferential surface of the hub, and each of the blades includes a first part extending from the hub and a second part connected to the first part. Each of the second parts protrudes beyond the first side or the second side, and each of the second parts is formed by multiple strip structures. Therefore, each of the strip structures can be closer to a surface of the heat source to dissipate the heat more effectively.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 24, 2017
    Inventors: Meng-Cheng HUANG, Chin-Hsiung HUANG, Tang-Yi YEH, Shih-Lun Chiu
  • Patent number: 9660615
    Abstract: A flip-flop device is provided. The flip-flop device includes a first flip-flop and a clock controller. The first flip-flop receives a first clock signal and a second clock signal for operation. The clock controller receives a clock source signal and generates the first clock signal and the second clock signal according to the clock source signal. Each of the first clock signal and the second clock signal switches between a first voltage level and a second voltage level. For each of the first clock signal and the second clock signal, a period of the first voltage level is shorter than a period of the second voltage level. The period of the first voltage level of the first clock signal and the period of the first voltage level of the second clock signal are non-overlapping.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: May 23, 2017
    Assignee: MEDIATEK INC.
    Inventors: Meng-Cheng Peng, Rei-Fu Huang
  • Publication number: 20160241770
    Abstract: Disclosed is an IP camera and a video playback method thereof, the IP camera connected to a host through the network, the IP camera includes an image capturing unit, a processor, and an input/output buffer unit. An external video is captured by the image capturing unit, and the external video includes a plurality of frames. An image outputting rate is determined by the processor, and an output external image is produced by reducing a resolution of the external image and remarking a confirm flag in at least one first frame when an image output rate is lower than a threshold value. The external image or the processed image is inputted to the I/O buffer unit to form an output external image. By way of the present invention, the captured video may still be watched instantly and fluently on the host while the host is suffering from the network congestion.
    Type: Application
    Filed: May 19, 2015
    Publication date: August 18, 2016
    Inventors: CHIEN-HUA SU, WEN-RUEI CHEN, MENG-CHENG YU, MING-CHIH CHANG
  • Publication number: 20160226469
    Abstract: A flip-flop device is provided. The flip-flop device includes a first flip-flop and a clock controller. The first flip-flop receives a first clock signal and a second clock signal for operation. The clock controller receives a clock source signal and generates the first clock signal and the second clock signal according to the clock source signal. Each of the first clock signal and the second clock signal switches between a first voltage level and a second voltage level. For each of the first clock signal and the second clock signal, a period of the first voltage level is shorter than a period of the second voltage level. The period of the first voltage level of the first clock signal and the period of the first voltage level of the second clock signal are non-overlapping.
    Type: Application
    Filed: January 29, 2015
    Publication date: August 4, 2016
    Inventors: Meng-Cheng PENG, Rei-Fu HUANG