Patents by Inventor Zhengheng Wang

Zhengheng Wang 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).

  • Conditional updates for reducing frequency of data modification operations
    Patent number: 9626399
    Abstract: A computer system detects a request, from a requestor, to access a first data object stored in a tiered data structure that includes internal nodes and leaf nodes. In response to detecting the request to access the first data object, the computer system retrieves a leaf node that includes the first data object and locks the leaf node that includes the first data object. While the leaf node that includes the first data object is locked, the computer system transmits, to the requestor, a first conditional-update communication and detecting a first conditional-update response in response to the first conditional-update communication. In response to detecting the first conditional-update response corresponding to the first data object, the computer system performs one or more operations based on the first conditional-update response corresponding to the first data object before unlocking the leaf node that includes the first data object.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: April 18, 2017
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Brian W. O'Krafka, Patrick Chiu, Ramesh Chander, Zhengheng Wang
  • Conditional Updates for Reducing Frequency of Data Modification Operations
    Publication number: 20150278283
    Abstract: A computer system detects a request, from a requestor, to access a first data object stored in a tiered data structure that includes internal nodes and leaf nodes. In response to detecting the request to access the first data object, the computer system retrieves a leaf node that includes the first data object and locks the leaf node that includes the first data object. While the leaf node that includes the first data object is locked, the computer system transmits, to the requestor, a first conditional-update communication and detecting a first conditional-update response in response to the first conditional-update communication. In response to detecting the first conditional-update response corresponding to the first data object, the computer system performs one or more operations based on the first conditional-update response corresponding to the first data object before unlocking the leaf node that includes the first data object.
    Type: Application
    Filed: July 21, 2014
    Publication date: October 1, 2015
    Inventors: Brian W. O'Krafka, Patrick Chiu, Ramesh Chander, Zhengheng Wang