Patents by Inventor Tat-Keong Loh

Tat-Keong Loh 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).

  • Patent number: 8484210
    Abstract: Systems, methods, computer program product embodiments for representing markup language document data in a searchable format in a database system are provided. An embodiment includes parsing a markup language document into a data stream, the data stream including a plurality of fields in a predefined format having a symbol table for at least one field of the data stream, and optimized field size based on a maximum value of data within each field, and storing the data stream in data storage.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: July 9, 2013
    Assignee: Sybase, Inc.
    Inventors: Tat-Keong Loh, Xiao Ming Zhou, Mohyuddin Rehmattullah, Michelle Lim
  • Publication number: 20110131200
    Abstract: Systems, methods, computer program product embodiments are provided for executing a function in a path-based query when extracting data from a markup language document for return as a relational table, the markup language document organized hierarchically into nodes. An embodiment includes receiving a path-based query including a complex row pattern and column definition, forming multiple sets of nodes based on a simplified row pattern and column definition, determining ancestor-descendent pairings for the nodes in the column definition set, and utilizing the ancestor-descendent pairings with the simplified row pattern to return a relational table satisfying the complex path-based query. An embodiment further includes extensible markup language (XML) as the markup language, and an XPath query expression as the complex path-based query.
    Type: Application
    Filed: December 1, 2009
    Publication date: June 2, 2011
    Applicant: Sybase, Inc.
    Inventors: Xiao Ming ZHOU, Tat-Keong Loh, Mohyuddin Rehmattullah, Michelle Lim
  • Publication number: 20100325169
    Abstract: Systems, methods, computer program product embodiments for representing markup language document data in a searchable format in a database system are provided. An embodiment includes parsing a markup language document into a data stream, the data stream including a plurality of fields in a predefined format having a symbol table for at least one field of the data stream, and optimized field size based on a maximum value of data within each field, and storing the data stream in data storage.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 23, 2010
    Applicant: Sybase, Inc.
    Inventors: Tat-Keong Loh, Xiao Ming Zhou, Mohyuddin Rehmattullah, Michelle Lim