Patents by Inventor Wei Xi

Wei Xi 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: 20190246424
    Abstract: An information transmission apparatus and method and communication system. The information transmission method includes: receiving transmission information containing data, which is transmitted by a transmitting device in a grant-free manner; identification information of the transmitting device is explicitly or implicitly carried in the transmission information; demodulating and checking the transmission information, and determining whether the identification information of the transmitting device and the data contained in the transmission information are correctly obtained; and feeding control information containing ACK/NACK back to the transmitting device, by using the identification information of the transmitting device or using sequence information of a DM-RS that is used for demodulating the transmission information.
    Type: Application
    Filed: April 15, 2019
    Publication date: August 8, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Jian ZHANG, Wei XI, Xin WANG, Hua ZHOU
  • Patent number: 10365836
    Abstract: An apparatus includes: an adaptive declustered RAID array configured of data storage devices (DSDs), the DSDs comprise data chunks allocated as data, a local parity, or a global parity; and a controller configured to generate a reliability indicator reflective of a reliability status of at least a portion of the adaptive declustered RAID array for reallocating the data chunks by dynamically increasing or decreasing the data chunks allocated as the local parity, the global parity, or a combination thereof.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: July 30, 2019
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Jun Xu, Wei Xi, Grant Mackey, Sanghoon Chu, Jie Yu
  • Publication number: 20190215123
    Abstract: An apparatus and method for transmitting reference signal and a communication system. The method includes: transmitting first information on one or more beams formed by a plurality of antennas in beam sweeping duration, the first information at least comprising a synchronization channel, a first reference signal and a physical broadcast channel. Hence, a receiving device may demodulate the physical broadcast channel by using the first reference signal, thereby achieving design of beam reference signals in a beam sweeping system.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Hua ZHOU, Wei XI
  • Publication number: 20190209478
    Abstract: The present invention is directed to compositions comprising an extrudate or solid solution of a compound, or a salt thereof, of Formula I (API): wherein “Ra” is independently —H or —F, in a water-soluble polymer matrix which further comprises a disintegration system allowing a tablet made therefrom to rapidly disintegrate in the environment in which the API is to be released.
    Type: Application
    Filed: November 2, 2018
    Publication date: July 11, 2019
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Mary Ann Johnson, Leonardo Resende Allain, W. Mark Eickhoff, Craig B. Ikeda, Chad D. Brown, Francis J. Flanagan, JR., Rebecca Nofsinger, Melanie Marota, Lisa Lupton, Paresh B. Patel, Hanmi Xi, Wei Xu
  • Patent number: 10344063
    Abstract: The present invention provides for recombinant Endo-S mutants that exhibit reduced hydrolysis activity and increased transglycosylation activity for the synthesis of glycoproteins wherein a desired sialylated oxazoline or synthetic oligosaccharide oxazoline is added to a core fucosylated or nonfucosylated GlcNAc-protein acceptor. Such recombinant Endo-S mutants are useful for efficient glycosylation remodeling of IgG1-Fc domain to provide different antibody glycoforms carrying structurally well-defined Fc N-glycans.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: July 9, 2019
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE
    Inventors: Lai-Xi Wang, Wei Huang
  • Publication number: 20190208501
    Abstract: A paging apparatus and method and a communication system. The paging method includes: determining a paging occasion of a user equipment based on one or more beam identities in a paging set; and transmitting a beam-based paging message to the UE when the paging occasion arrives. Hence, when the paging occasion of the user equipment arrives, beams of the base station may be directed to the user equipment, and a paging message may be efficiently and reliably transmitted.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 4, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Wei XI, Hua ZHOU
  • Publication number: 20190165873
    Abstract: A method and apparatus for multiplexing demodulation reference signals and a communication system. The method for multiplexing includes: transmitting data and DM-RSs by using one or more time-frequency resource blocks; the DM-RSs of each UE or each data stream occupy a part of frequency-domain resources of the time-frequency resource blocks, the DM-RSs of a part of UEs or data streams are superimposed on identical time-domain resources in a manner of frequency-division multiplexing, and the DM-RSs of a part of the UEs or data streams are superimposed on identical time-frequency resources in a manner of code-division multiplexing. Hence, even if in a case of massive UEs access, the DM-RSs may be multiplexed within given time-frequency resources, while performance of transmission may still be ensured.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Jian ZHANG, Xin WANG, Wei XI
  • Patent number: 10289310
    Abstract: Systems and methods are disclosed for accessing data on a storage system. An apparatus, such as a data storage device or a computing device, may include a memory configured to store data. The apparatus is configured to receive a request for a file stored in a storage system. The storage system includes a private storage cloud and a set of public storage clouds. The apparatus is also configured to determine whether the file is retrievable from the set of public storage clouds. If the file is retrievable from the set of public storage clouds the apparatus may determine whether access to the set of public storage clouds is faster than access to the private storage cloud and may retrieve the file from one or more of the private storage cloud and the set of public storage clouds.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: May 14, 2019
    Assignee: Western Digital Technologies, Inc.
    Inventors: Jun Xu, Wei Xi, Guoxiao Guo, Eric Bjornson, Jie Yu, Ling Chih Wei
  • Publication number: 20190141487
    Abstract: This disclosure provides a group communication apparatus and method and a communication system. The group communication method includes: scrambling data information of a message by using corresponding scrambling information according to a message type and/or a message transmission range; wherein, different message types and/or message transmission ranges correspond to different scrambling information. Therefore, internal members or peripheral devices of a group may selectively receive messages of different types or different target ranges. Hence, not only messages may be ensured to be accurately received by corresponding receivers, but also security of internal message may be improved.
    Type: Application
    Filed: January 3, 2019
    Publication date: May 9, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Qinyan JIANG, Hua ZHOU, Wei XI
  • Publication number: 20190069233
    Abstract: A message transmitting/receiving apparatus and method and a communication system. The message transmitting method includes: determining a message type of a message to be transmitted to one or more user equipments; scrambling control information of the message by using an identity to which the message type corresponds; wherein, different identities correspond to different message types; and transmitting data information of the message and the scrambled control information to the one or more user equipments. Hence, the user equipment may not proceed with processing a message that is not preferred, thereby lowering power consumption of the user equipment.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Qinyan JIANG, Hua ZHOU, Wei XI
  • Publication number: 20190018972
    Abstract: Systems and methods are disclosed for providing secure access to a data storage device. A user may provide tap inputs, such as taps or knocks, on an enclosure of the data storage device. The data storage device may determine whether the tap inputs are valid and may allow access to the data storage device (e.g., to non-volatile memory of the data storage device) when the tap inputs are valid.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 17, 2019
    Inventors: Jun XU, Lei ZHANG, Wei XI, Dean Mitcham JENKINS, David W. CHEW, Jianguo ZHOU
  • Publication number: 20190021095
    Abstract: A resource allocation method, apparatus and communication system. A base station allocates a priority for each resource unit in the resource pool, and notifies information on the priorities to a user equipment in its coverage, such that the user equipment may select a corresponding resource unit for its message to be transmitted (a V2X packet) according to the configuration information on the priorities of the resource units from the base station. Hence, the probability of resource collision can be lowered, and the latency can be ensured to be low.
    Type: Application
    Filed: September 17, 2018
    Publication date: January 17, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Wei XI, Hua ZHOU
  • Publication number: 20190018949
    Abstract: Systems and methods are disclosed for providing secure access to a data storage device. A user may move the data storage device (e.g., wave, twist, etc.). The data storage device may determine whether the motions valid and may allow access to the data storage device (e.g., to non-volatile memory of the data storage device) when the motions are valid.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 17, 2019
    Inventors: Jun XU, Lei ZHANG, Wei XI, Dean Mitcham JENKINS, David W. CHEW, Jianguo ZHOU
  • Publication number: 20180373439
    Abstract: Systems and methods are disclosed for accessing data on a storage system. An apparatus, such as a data storage device or a computing device, may include a memory configured to store data. The apparatus is configured to receive a request for a file stored in a storage system. The storage system includes a private storage cloud and a set of public storage clouds. The apparatus is also configured to determine whether the file is retrievable from the set of public storage clouds. If the file is retrievable from the set of public storage clouds the apparatus may determine whether access to the set of public storage clouds is faster than access to the private storage cloud and may retrieve the file from one or more of the private storage cloud and the set of public storage clouds.
    Type: Application
    Filed: June 27, 2017
    Publication date: December 27, 2018
    Inventors: Jun XU, Wei XI, Guoxiao GUO, Eric BJORNSON, Jie YU, Ling Chih WEI
  • Publication number: 20180373600
    Abstract: Systems and methods are disclosed for accessing data on a storage system. An apparatus, such as a data storage device or a computing device, may include a memory configured to store data. The apparatus is configured to determine an importance level for a file to be stored in the storage system. The data storage system includes one or more private storage clouds and one or more public storage clouds. The apparatus is also configured to generate a set of recovery data chunks based on the file and the importance level. The apparatus is further configured to store the set of recovery data chunks in the set of public storage clouds. The apparatus is further configured to store at least a portion of the file in the private storage cloud.
    Type: Application
    Filed: June 27, 2017
    Publication date: December 27, 2018
    Inventors: Jun XU, Wei XI, Guoxiao GUO, Eric BJORNSON, Jie YU, Ling Chih WEI
  • Publication number: 20180351622
    Abstract: A method and apparatus for feeding back channel state information, a method and apparatus for allocating resources and a communications system. The method for feeding back channel state information includes: a UE feeds back channel state information to a base station, the channel state information including a link ID of a link between the UE and a neighboring UE, and/or a UEID of the neighboring UE, so that the base station allocates resources for each UE according to channel state information fed back by each UE. Hence, resource collision is reduced, and signal quality is improved.
    Type: Application
    Filed: July 20, 2018
    Publication date: December 6, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Wei XI, Hua ZHOU
  • Publication number: 20180302949
    Abstract: A network message notification apparatus and method and a communication system. The method includes: receiving a network message transmitted by a network device; the network message including indication information indicating a user identity range; parsing the indication information and determining whether a user identity of the UE falls within the user identity range indicated by the indication information; and determining whether the UE is notified by the network message according to a determination result. Hence, a magnitude of a network message in the communication system may be greatly reduced, and more UEs may be notified by using relatively few resources.
    Type: Application
    Filed: June 19, 2018
    Publication date: October 18, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Yulong SHI, Wei XI, Haibo XU
  • Publication number: 20180270790
    Abstract: An apparatus and method for paging a UE and a communications system. The method includes: calculating a first-grade paging group index based on an inherent identity of the UE, or based on an inherent identity of the UE and a network configuration parameter; calculating a second-grade paging group index based on a network identity allocated by an MME; receiving indication information for indicating paging group indices transmitted by a base station; determining whether the information contained in the indication information is consistent with the first-grade paging group index and the second-grade paging group index; and decoding a downlink data channel to determine whether the UE is paged when it is consistent. Hence, different paging groups may have identical or approximate numbers of UEs, which may reduce a probability of “false paging” of the overall cell.
    Type: Application
    Filed: May 22, 2018
    Publication date: September 20, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Yulong SHI, Haibo XU, Wei XI
  • Patent number: D832263
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: October 30, 2018
    Inventor: Wei Xi Chen
  • Patent number: D858436
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: September 3, 2019
    Inventor: Wei Xi Chen