Patents by Inventor Robert Cheong

Robert Cheong 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, system and computer-readable media for repairing corruption of data record references
    Patent number: 7752175
    Abstract: A system, method and computer-readable media are provided for repairing corrupted data related to a software database. An electronic information technology system includes (1.) a logical page index; (2.) a free page map; and (3.) a computer-readable medium. The logical page index includes a plurality of logical page index pairs, each logical page index pair having a logical page number and a physical page location address of the computer-readable medium that reference a same record. The database system also includes a means to detect a logical page index pair having a logical page number and a physical page location that are not referencing a same record, and another means to search for a free page map entry that references the physical page address of the record referenced by the logical page index pair.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: July 6, 2010
    Assignee: Objectivity, Inc.
    Inventor: Robert Cheong
  • Method, system and computer-readable media for repairing corruption of data record references
    Publication number: 20090112940
    Abstract: A system, method and computer-readable media are provided for repairing corrupted data related to a software database. An electronic information technology system includes (1.) a logical page index; (2.) a free page map; and (3.) a computer-readable medium. The logical page index includes a plurality of logical page index pairs, each logical page index pair having a logical page number and a physical page location address of the computer-readable medium that reference a same record. The database system also includes a means to detect a logical page index pair having a logical page number and a physical page location that are not referencing a same record, and another means to search for a free page map entry that references the physical page address of the record referenced by the logical page index pair.
    Type: Application
    Filed: October 29, 2007
    Publication date: April 30, 2009
    Inventor: Robert Cheong