Patents by Inventor Seungmin Wei

Seungmin Wei 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).

  • Creating database clones at a specified point-in-time
    Patent number: 11561864
    Abstract: A point-in-time clone may be created for a database. A request to create the point-in-time clone may be received. The clone may be provided with access to a storage for the database that stores a history of modifications to the database applicable to return data of the database according to a state of the data at the specified point in time. The clone may then be updated so that the updates made to the clone are stored for subsequent access by the clone.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: January 24, 2023
    Assignee: Amazon Technologies, Inc.
    Inventors: Murali Brahmadesam, Changan Han, Raman Mittal, Seungmin Wei
  • ONLINE RESTORE FOR DATABASE ENGINES
    Publication number: 20220114064
    Abstract: Online restore operations for a database engine can be performed. A request to restore a database to a previous state can be received. Previously stored content of the database, such as snapshot stored prior to the previous state, can be identified along with log records describing changes to be made to the content prior to the previous state. State information in a query engine can be updated based on the previously stored content and log records so that queries can be processed based on the state information at the database restore to the previous state.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Applicant: Amazon Technologies, Inc.
    Inventors: Anurag Windlass Gupta, Murali Brahmadesam, Changan Han, Alexandre Olegovich Verbitski, Xiaofeng Bao, Alisdair William Owens, Xiang Peng, Benjamin S. Ellis, Raman Mittal, Konstantin Dubinets, Tiffany Jianto, Venkatesh Nandakumar, Seungmin Wei
  • Online restore to a selectable prior state for database engines
    Patent number: 11210184
    Abstract: Online restore operations for a database engine can be performed. A request to restore a database to a previous state can be received. Previously stored content of the database, such as snapshot stored prior to the previous state, can be identified along with log records describing changes to be made to the content prior to the previous state. State information in a query engine can be updated based on the previously stored content and log records so that queries can be processed based on the state information at the database restore to the previous state.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: December 28, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Anurag Windlass Gupta, Murali Brahmadesam, Changan Han, Alexandre Olegovich Verbitski, Xiaofeng Bao, Alisdair William Owens, Xiang Peng, Benjamin S. Ellis, Raman Mittal, Konstantin Dubinets, Tiffany Jianto, Venkatesh Nandakumar, Seungmin Wei
  • Adaptive database replication for database copies
    Patent number: 10929428
    Abstract: Adaptive replication of changes may be performed for copies of a database. Log records may be generated and stored that correspond to changes to a database while a database is being copied. If the changes to be applied to a copy of the database is less than or equal to a threshold number of changes, then the copy of the database may be updated using the stored log records. If the changes to be applied to the copy of the database are greater than the threshold number of changes, then the copy of the database may be updated using data stored in the database.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: February 23, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Murali Brahmadesam, Seungmin Wei, Sumit Kumar, Raman Mittal, Crosbie Matthew Smith, Kevin Liu, Aadithya Chandramalle Gowda, Ramesh Shankar
  • Shared pages for database copies
    Patent number: 10909143
    Abstract: Data pages of a database may be shared to create a copy of the database. A request to create a copy of the database may be received. Pointers to the data pages in the data store may be generated and stored as part of the copy of the database. When a request to read a data page in the copy of the database is received, the pointer to the data page may be accessed and the data page read from the database. When a request to modify a data page in the copy of the database is received, a modified version of the data page may be stored as part of the copy of the database and the pointer updated to point to the modified version of the data page.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: February 2, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Murali Brahmadesam, Raman Mittal, Li-Che Hsiao, Konstantin Dubinets, Seungmin Wei, Xiaofeng Bao, Changan Han, Saleem Mohideen, Venkatesh Nandakumar, Xiang Peng