Patents by Inventor Ted Guangkai Zhang

Ted Guangkai 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).

  • Method and apparatus for locking file in memory
    Patent number: 10324902
    Abstract: Embodiments of the present disclosure relate to a method and apparatus for locking a file in a memory. The method comprises enabling a thread to obtain a mixed lock of a file. The method further comprises, in response to enabling the thread to obtain the mixed lock, enabling a further thread to obtain a shared lock of the file, and prevent the further thread from obtaining the exclusive lock or mixed lock of the file. By adding a new mixed lock to a traditional read and write lock, embodiments of the present disclosure improve concurrent access performance of the file system.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: June 18, 2019
    Assignee: EMC IP Holding Company LLC
    Inventors: Lester Ming Zhang, Denny Dengyu Wang, Chen Gong, Ted Guangkai Zhang, Donglei Wang, Bean Bin Zhao
  • METHOD AND APPARATUS FOR LOCKING FILE IN MEMORY
    Publication number: 20170091218
    Abstract: Embodiments of the present disclosure relate to a method and apparatus for locking a file in a memory. The method comprises enabling a thread to obtain a mixed lock of a file. The method further comprises, in response to enabling the thread to obtain the mixed lock, enabling a further thread to obtain a shared lock of the file, and prevent the further thread from obtaining the exclusive lock or mixed lock of the file. By adding a new mixed lock to a traditional read and write lock, embodiments of the present disclosure improve concurrent access performance of the file system.
    Type: Application
    Filed: September 19, 2016
    Publication date: March 30, 2017
    Inventors: Lester Ming Zhang, Denny Dengyu Wang, Chen Gong, Ted Guangkai Zhang, Donglei Wang, Bean Bin Zhao