Patents by Inventor Chen Xu

Chen Xu 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: 20210132849
    Abstract: A data migration method and an apparatus are provided. The method is as follows: sending, by a first storage system, a location update request to a location server, where the location update request is used to indicate the location server to update location information of a first bucket from being located in a second storage system to being located in the first storage system (402); migrating data (405) in a first bucket from the second storage system; receiving a data access request, where the data access request is used to access the data (406) in the first bucket; and determining based on a type of the data access request and a migration status of the data, that the first storage system or the second storage system processes the data access request (407).
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Inventors: Feng XU, Yu ZHANG, Ling LIN, Chen LING, Lei HUANG
  • Publication number: 20210130862
    Abstract: The disclosure discloses a method for preparing a lipoamino acid compound based on deep eutectic solvents, and belongs to the field of organic synthesis. The preparation method of the disclosure uses a fatty acid and an amino acid as substrates, uses a deep eutectic solvent as a medium, and directly and efficiently prepares a single-chain lipoamino acid surfactant under the catalysis of lipase CALB. Alternatively, Amano lipase M is used as a catalyst to efficiently catalyze the reaction of an amino acid containing a plurality of amino groups with a fatty acid to prepare a Gemini amino acid. The method of the disclosure does not need to undergo protection and deprotection of the amino acid, and does not involve commonly used fatty acid chlorides. Compared with the traditional chemical synthesis methods, the disclosure has the advantages of greenness, safety, high selectivity, high yield, etc., and has very important potential application value.
    Type: Application
    Filed: December 31, 2020
    Publication date: May 6, 2021
    Inventors: Yuanfa LIU, Binbin NIAN, Chen CAO, Zhaojun ZHENG, Yongjiang XU, Yinghong ZHAI
  • Patent number: 10999005
    Abstract: Embodiments of the application provide a method and device for polar code rate matching in a wireless communication network. A device of the network obtains K information bits. The device generates a to-be-encoded sequence having a length N bits. The to-be-encoded sequence includes the K information bits and L frozen bits. The L frozen bits are placed in L bit positions of the to-be-encoded sequence. The L bit positions are determined according to a rate match manner which is either puncturing or shortening. The device polar encodes the to-be-encoded sequence to obtain the encoded sequence. The device interleaves the encoded sequence to obtain an interleaved sequence and then stores the interleaved sequence into a cyclic cache. The device sequentially outputs M bits of the interleaved sequence from the cyclic cache according to the rate matching manner.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: May 4, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chen Xu, Gongzheng Zhang, Rong Li, Huazi Zhang, Lingchen Huang
  • Patent number: 10998189
    Abstract: A laser annealing process of a drive backplane includes: providing a mask, which has a light transmission area; and sequentially moving the mask to cover different areas of an amorphous silicon layer of the drive backplane, and annealing the amorphous silicon layer exposed in the light transmission area to form a poly-silicon pattern.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: May 4, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Feng Guan, Zhi Wang, Chen Xu
  • Patent number: 10997936
    Abstract: A shift register unit, a gate drive circuit and a display device are disclosed. The shift register unit includes an input circuit, an output circuit, a reset circuit, a control circuit and a reset stabilizing circuit. The input circuit is configured to write an input signal into a first node in response to an input start signal. The output circuit is configured to output a preparatory output signal to an output terminal under control of an electric level of the first node. The reset circuit is configured to reset the output terminal under control of an electric level of a second node. The control circuit is configured to apply a first voltage signal to the second node in response to a control signal. The reset stabilizing circuit is configured to apply a second voltage signal to the first node in response to a reset stabilizing signal.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 4, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chen Xu, Xueguang Hao, Yong Qiao, Xinyin Wu
  • Patent number: 10995049
    Abstract: The present disclosure is directed to methods of preparing prostaglandin J natural products by stereoretentive metatheses reactions and intermediates used in the synthesis of these natural products, including the use of intermediates of Formula (I-A), where R1 is defined in the specification
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: May 4, 2021
    Assignee: California Institute of Technology
    Inventors: Jiaming Li, Chen Xu, Tonia S Ahmed, Robert H Grubbs, Brian M. Stoltz
  • Publication number: 20210123897
    Abstract: The disclosure discloses a method for quickly and accurately analyzing polyphenol content in rapeseed oil, and belongs to the field of analysis of natural compounds. The separation method of the disclosure uses acetonitrile-water as an extractant to extract polyphenols from the rapeseed oil, and cooperates with a C18 adsorbent for purification, and then performs separation and purification. Compared with the traditional liquid-liquid extraction and solid-phase extraction, the method has an average recovery rate of polyphenols in the rapeseed oil of 81.31% to 102.95%, and RSDs of 0.86% to 8.03%, and has higher accuracy and precision. The method of the disclosure not only uses less organic reagents and causes less environmental pollution, but also reduces matrix interference and improves purification efficiency through optimization of the adsorbent.
    Type: Application
    Filed: December 31, 2020
    Publication date: April 29, 2021
    Inventors: Yuanfa LIU, Junge SONG, Yongjiang XU, Zhaojun ZHENG, Chen CAO, Yinghong ZHAI
  • Publication number: 20210127468
    Abstract: A circuit board arrangement assembled by at least a first and a second circuit boards, each circuit board comprising: a portion of a circuit; and a first and a second electrical terminals to be electrically connected to a respective first and a second electrical terminals of the other circuit board of the first and the second circuit boards, so as to couple the portions of the circuit of the first and the second circuit boards, wherein the first and second electrical terminals on the circuit board are coupled with each other via the portion of the circuit on the other circuit board of the first and the second circuit boards, at least one board further comprising: a voltage suppression element (TSS1, TSS2) in the board connected across the first and second electrical terminals of the board, said voltage suppression element (TSS1, TSS2) is adapted to become conductive when a voltage thereacross reaches a threshold; characterized in that the portion of the circuit comprising at least one LED, and said LED (LED1)
    Type: Application
    Filed: June 18, 2019
    Publication date: April 29, 2021
    Inventors: Zhaoting LI, Peng CHEN, Han LU, Feng WANG, Wei XIA, Yun WANG, Ai Ling XU
  • Publication number: 20210121269
    Abstract: The disclosure relates to a reconstruction prosthesis including a plurality of prosthesis units connected in series. Each of the prosthesis units includes a main part and a cushion structure. The main part has an abutment insertion opening and an accommodation space. The cushion structure is located in the accommodation space and movably located at the abutment insertion opening and defining an abutment mounting hole connected to the abutment insertion opening. The cushion structure is deformable with respect to the main part.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 29, 2021
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Wei-Chin HUANG, De-Yau LIN, Chuan-Sheng CHUANG, An-Li CHEN, Bo Min XU, Chun-Feng CHEN, Sung-Ho LIU
  • Patent number: 10991798
    Abstract: Embodiments of the invention are directed to a method of forming a nanosheet transistor. A non-limiting example of the method includes forming a nanosheet stack having alternating layers of channel nanosheets and sacrificial nanosheets, wherein each of the layers of channel nanosheets includes a first type of semiconductor material, and wherein each of the layers of sacrificial nanosheets includes a second type of semiconductor material. The layers of sacrificial nanosheets are removed from the nanosheet stack, and layers of replacement sacrificial nanosheets are formed in the spaces that were occupied by the sacrificial nanosheets. Each of the layers of replacement sacrificial nanosheets includes a first type of non-semiconductor material.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: April 27, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Wenyu Xu, Chen Zhang, Kangguo Cheng, Xin Miao
  • Patent number: 10991797
    Abstract: A semiconductor device and method for forming the same. The device comprises at least a dielectric layer, a two-dimensional (2D) material layer, a gate structure, and source/drain contacts. The 2D material layer contacts the dielectric layer. The gate structure contacts the 2D material layer. The source/drain contacts are disposed above the 2D material layer and contact the gate structure. The method includes forming a structure including at least a handle wafer, a 2D material layer, a gate structure in contact with the 2D material layer, an insulating layer, and a sacrificial layer. A portion of the sacrificial layer is etched. An inter-layer dielectric is formed in contact with the insulating layer and sidewalls of the sacrificial layer. The sacrificial layer and a portion of the insulating layer are removed. Source and drain contacts are formed in contact with the portion of the 2D material layer.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: April 27, 2021
    Assignee: International Business Machines Corporation
    Inventors: Chen Zhang, Peng Xu, Chun Wing Yeung
  • Publication number: 20210118878
    Abstract: Devices and methods are provided for forming single diffusion break isolation structures for integrated circuit devices including gate-all-around FET devices such as nanosheet FET devices and nanowire FET devices. For example, a semiconductor integrated circuit device includes first and second gate-all-around field-effect transistor devices disposed in first and second device regions, respectively, of a semiconductor substrate. A single diffusion break isolation structure is disposed between the first and second device regions. The single diffusion break isolation structure includes a dummy gate structure disposed on the semiconductor substrate between a first source/drain layer of the first gate-all-around field-effect transistor device and a second source/drain layer of the second gate all-around field-effect transistor device. The single diffusion break isolation structure is configured to electrically isolate the first and second source/drain layers.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 22, 2021
    Inventors: Wenyu Xu, Xin Miao, Chen Zhang, Kangguo Cheng
  • Publication number: 20210113335
    Abstract: The disclosure relates to a reconstruction prosthesis including a main section, at least one serpentine structure, and at least one mount section. The at least one serpentine structure is connected to one end of the main section. The at least one mount section is connected to the main section via the at least one serpentine structure. The at least one mount section is configured to be connected to osseous tissue. When the at least one serpentine structure is deformed by force, the relative position of the main section and the at least one mount section is changed.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 22, 2021
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Wei-Chin HUANG, De-Yau LIN, Chuan-Sheng CHUANG, An-Li CHEN, Bo Min XU, Chun-Feng CHEN, Sung-Ho LIU
  • Publication number: 20210119043
    Abstract: A method of forming a vertical fin field effect transistor device is provided. The method includes forming a vertical fin and fin template on a bottom source/drain layer, wherein the fin template is on the vertical fin. The method further includes forming a gate structure on the vertical fin and fin template, and forming a top spacer layer on the gate structure. The method further includes removing the fin template to form an opening in the top spacer layer, and removing a portion of a gate electrode of the gate structure to form a cavity; and removing a portion of a gate dielectric layer of the gate structure to form a groove around the vertical fin.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 22, 2021
    Inventors: Kangguo Cheng, Chen Zhang, Xin Miao, Wenyu Xu
  • Publication number: 20210115427
    Abstract: Provided herein is a thermolabile proteinase and methods of using the same. In some embodiments, the thermolabile proteinase may comprise an amino acid sequence that is at least 90% identical to any of SEQ ID NOs:1-11 and at least one amino acid substitution in helix 3. The thermolabile proteinase is active at a temperature in the range of 4° C.-40° C. and is inactivated by raising the temperature to above 50° C., where the proteinase is substantially inactive at 65° C.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 22, 2021
    Applicant: New England Biolabs, Inc.
    Inventors: Minyong Chen, James C. Samuelson, Ming-Qun Xu, Aihua Zhang, Margaret Heider, Pingfang Liu
  • Patent number: 10985873
    Abstract: Example information transmission methods and devices are disclosed. One example method is applied to a network device and includes determining CRC bits of to-be-sent information bits, concatenating the CRC bits and the to-be-sent information bits to obtain a first information sequence, and interleaving bits in the first information sequence in an interleaving manner or scrambling the bits in the first information sequence in a scrambling manner, to obtain a second information sequence, to ensure that bits at locations of the CRC bits after a cyclic shift cannot check bits at locations of the to-be-sent information bits after the cyclic shift. A cyclic shift is performed on the second information sequence to obtain a third information sequence, where a quantity of cyclically shifted bits is used to carry information about some bits of a system frame number, and the third information sequence is sent.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: April 20, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shengchen Dai, Gongzheng Zhang, Chen Xu, Hejia Luo, Yinggang Du
  • Patent number: 10985872
    Abstract: This application provides an encoding method and apparatus in wireless communications between a network device and a terminal. The method includes: performing cyclic redundancy check (CRC) encoding on A to-be-encoded information bits based on a CRC polynomial, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and A information bits, L=11; and performing polar encoding on the first bit sequence.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: April 20, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lingchen Huang, Shengchen Dai, Chen Xu, Yunfei Qiao, Rong Li
  • Patent number: 10978103
    Abstract: A magnetic recording medium includes: a substrate; an underlayer; and a magnetic layer including an alloy having a L10 structure and a (001) orientation, wherein the substrate, the underlayer, and the magnetic layer are stacked in the recited order, and wherein the magnetic layer has a granular structure and includes a carbon hydride, a boron hydride, or a boron nitride hydride.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: April 13, 2021
    Assignee: SHOWA DENKO K.K.
    Inventors: Takayuki Fukushima, Kazuya Niwa, Lei Zhang, Hisato Shibata, Takehiro Yamaguchi, Chen Xu, Tetsuya Kanbe, Tomoo Shige
  • Patent number: 10955372
    Abstract: An equipment-monitoring system having a resistive sensor designed for two- or four-terminal sensing of damage thereto caused by an environmental exposure. In an example embodiment, the resistive sensor comprises a sense resistor susceptible to the environmental exposure and a reference resistor protected from the environmental exposure, the sense and reference resistors being internally connected to four terminals of the sensor in a manner that enables external bridge-type measurements of the electrical resistance of the sense resistor. In some embodiments, the sense resistor comprises a relatively large number of flat metal stripes connected in parallel to one another between two of the four terminals, which advantageously provides an extended dynamic range of the damage detectable with the corresponding sensor and improves the sensor reliability.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: March 23, 2021
    Assignee: Nokia Technologies Oy
    Inventor: Chen Xu
  • Patent number: 10950454
    Abstract: A method for etching a substrate includes performing, in a plasma chamber, a first etch of a substrate material using a plasma etch process. The first etch forms features to a first depth in the material. Following the first etch, the method includes performing, in the plasma chamber without removing the substrate from the chamber, an atomic layer passivation (ALP) process to deposit a conformal film of passivation over the mask and the features formed during the first etch. The ALP process uses a vapor from a liquid precursor to form passivation over the features and the mask. The method further includes performing, in the plasma chamber, a second etch of the material using the plasma etch process. The conformal film of passivation is configured to protect the mask and sidewalls of the features during the second etch. A plasma processing system also is described.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: March 16, 2021
    Assignee: Lam Research Corporation
    Inventors: Xiang Zhou, Tom A. Kamp, Yoshie Kimura, Duming Zhang, Chen Xu, John Drewery, Alex Paterson