Patents by Inventor WooJune LEE

WooJune LEE 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).

  • Apparatus and method for replicating changed-data in source database management system to target database management system in real time
    Patent number: 10795911
    Abstract: Provided are an apparatus and a method for replicating changed-data in a source database management system to a target database management system in real time, for minimizing the load on the source DBMS system, reducing costs for DBMS hardware configuration, and facilitating operation and failure recovery. The source server transmits the changed-data from a redo log file or an archive log file in a source DBMS area to a target server in real time, and the target server receives the changed-data transmitted from the source server to temporarily store the changed-data in a local area, and extracts the change data stored in the local area to replicate the extracted changed-data to the target DBMS, thereby implementing the apparatus for replicating the changed-data in the source database management system to the target database management system in real time.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: October 6, 2020
    Assignee: DataStreams Corp.
    Inventor: WooJune Lee
  • APPARATUS AND METHOD FOR REPLICATING CHANGED-DATA IN SOURCE DATABASE MANAGEMENT SYSTEM TO TARGET DATABASE MANAGEMENT SYSTEM IN REAL TIME
    Publication number: 20180253483
    Abstract: Provided are an apparatus and a method for replicating changed-data in a source database management system to a target database management system in real time, for minimizing the load on the source DBMS system, reducing costs for DBMS hardware configuration, and facilitating operation and failure recovery. The source server transmits the changed-data from a redo log file or an archive log file in a source DBMS area to a target server in real time, and the target server receives the changed-data transmitted from the source server to temporarily store the changed-data in a local area, and extracts the change data stored in the local area to replicate the extracted changed-data to the target DBMS, thereby implementing the apparatus for replicating the changed-data in the source database management system to the target database management system in real time.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 6, 2018
    Inventor: WooJune LEE