Patents by Inventor Lunkai Zhang

Lunkai Zhang 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: 20220359030
    Abstract: Systems, apparatuses, and methods provide for technology performs write current adjustment management in crosspoint persistent memory structures. Such technology determines whether to adjust a base current in response to a sampling of write-and-read operations on a set of addresses in a crosspoint persistent memory; determines whether a test current reduces a number of bit fails in response to a determination of whether to adjust the base current; and adjusts the base current based on the test current in response to a determination that the test current reduces the number of bit fails.
    Type: Application
    Filed: July 18, 2022
    Publication date: November 10, 2022
    Inventors: Yuanyuan Li, Rakan Maddah, Prashant S. Damle, Dany-Sebastien Ly-Gagnon, Lunkai Zhang
  • Publication number: 20210193248
    Abstract: A “near miss” based refresh scheme performs refreshes to read disturbed codewords proactively (or on-demand). In one example, a controller receives a read request to a target address (e.g., from a host memory controller). The read request is sent to memory, and the memory returns the read data. ECC logic decodes the read data and determines the number of error bits in the read data. If the number of error bits is greater than a threshold, a refresh write command is sent to the command queue. If an outstanding write command to the same address is already in the queue, the refresh write can be dropped and the outstanding write command converted into a refresh write command. A data cache can service read commands to the target address until the near miss-based refresh command completes.
    Type: Application
    Filed: December 23, 2020
    Publication date: June 24, 2021
    Inventors: Lunkai ZHANG, Rakan MADDAH, Prashant S. DAMLE
  • Patent number: 10002023
    Abstract: A method and an apparatus for managing and scheduling tasks in a many-core system are presented. The method improves process management efficiency in the many-core system. The method includes, when a process needs to be added to a task linked list, adding a process descriptor pointer of the process to a task descriptor entry corresponding to the process, and adding the task descriptor entry to the task linked list; if a process needs to be deleted, finding a task descriptor entry corresponding to the process, and removing the task descriptor entry from the task linked list; and when a processor core needs to run a new task, removing an available priority index register with a highest priority from a queue of the priority index register.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: June 19, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Lunkai Zhang, DongRui Fan, Hao Zhang, Xiaochun Ye
  • Publication number: 20160103709
    Abstract: A method and an apparatus for managing and scheduling tasks in a many-core system are presented. The method improves process management efficiency in the many-core system. The method includes, when a process needs to be added to a task linked list, adding a process descriptor pointer of the process to a task descriptor entry corresponding to the process, and adding the task descriptor entry to the task linked list; if a process needs to be deleted, finding a task descriptor entry corresponding to the process, and removing the task descriptor entry from the task linked list; and when a processor core needs to run a new task, removing an available priority index register with a highest priority from a queue of the priority index register.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 14, 2016
    Inventors: Lunkai Zhang, DongRui Fan, Hao Zhang, Xiaochun Ye