Patents by Inventor Jingling William Lee

Jingling William 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).

  • Enhancements to data integrity verification mechanism
    Patent number: 7246281
    Abstract: A method and apparatus is provided for maintaining data integrity. According to the method, a physical checksum calculation is performed on a block of data. After performing the physical checksum calculation, a logical check is performed on the data contained with the block of data. If the block of data passes the logical check, then the block of data may be written to nonvolatile memory. Thereafter, when the block of data is read from nonvolatile memory a physical checksum verification procedure is performed on the block of data to determine whether the block of data was corrupted after performing the logical check on the data contained with the block of data.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: July 17, 2007
    Assignee: Oracle International Corporation
    Inventors: Juan R. Loaiza, Wei-Ming Hu, Jingling William Lee
  • Data block location verification
    Patent number: 7231564
    Abstract: An approach for performing data block location verification includes inserting an address value into a data block that identifies a desired location in nonvolatile memory for storing the data block. Prior to performing an operation that stores the data block to the nonvolatile memory, a determination is made whether the address value in the data block correctly identifies the location in nonvolatile memory into which the operation will store the data block. The operation is performed only if the address value in the data block correctly identifies the location in nonvolatile memory into which the operation will store the data block. After the data block is read from the nonvolatile memory, an additional determination may be made to determine whether the data block was read from the desired location in the nonvolatile memory.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: June 12, 2007
    Assignee: Oracle International Corporation
    Inventors: Juan R. Loaiza, Wei-Ming Hu, Jingling William Lee
  • Enhancements to data integrity verification mechanism
    Patent number: 7020835
    Abstract: A method and apparatus is provided for maintaining data integrity. According to the method, a physical checksum calculation is performed on a block of data. After performing the physical checksum calculation, a logical check is performed on the data contained with the block of data. If the block of data passes the logical check, then the block of data may be written to nonvolatile memory. Thereafter, when the block of data is read from nonvolatile memory a physical checksum verification procedure is performed on the block of data to determine whether the block of data was corrupted after performing the logical check on the data contained with the block of data.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: March 28, 2006
    Assignee: Oracle International Corporation
    Inventors: Juan R. Loaiza, Wei-Ming Hu, Jingling William Lee
  • Data integrity verification mechanism
    Patent number: 6928607
    Abstract: A method and apparatus is provided for maintaining data integrity. According to the method, a physical checksum calculation is performed on a block of data. After performing the physical checksum calculation, a logical check is performed on the data contained with the block of data. If the block of data passes the logical check, then the block of data may be written to nonvolatile memory. Thereafter, when the block of data is read from nonvolatile memory a physical checksum verification procedure is performed on the block of data to determine whether the block of data was corrupted after performing the logical check on the data contained with the block of data.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: August 9, 2005
    Assignee: Oracle International Corporation
    Inventors: Juan R. Loaiza, Wei-Ming Hu, Jingling William Lee
  • Data block location verification
    Publication number: 20040199743
    Abstract: An approach for performing data block location verification includes inserting an address value into a data block that identifies a desired location in nonvolatile memory for storing the data block. Prior to performing an operation that stores the data block to the nonvolatile memory, a determination is made whether the address value in the data block correctly identifies the location in nonvolatile memory into which the operation will store the data block. The operation is performed only if the address value in the data block correctly identifies the location in nonvolatile memory into which the operation will store the data block. After the data block is read from the nonvolatile memory, an additional determination may be made to determine whether the data block was read from the desired location in the nonvolatile memory.
    Type: Application
    Filed: April 14, 2004
    Publication date: October 7, 2004
    Inventors: Juan R. Loaiza, Wei-Ming Hu, Jingling William Lee
  • Enhancements to data integrity verification mechanism
    Publication number: 20030140288
    Abstract: A method and apparatus is provided for maintaining data integrity. According to the method, a physical checksum calculation is performed on a block of data. After performing the physical checksum calculation, a logical check is performed on the data contained with the block of data. If the block of data passes the logical check, then the block of data may be written to nonvolatile memory. Thereafter, when the block of data is read from nonvolatile memory a physical checksum verification procedure is performed on the block of data to determine whether the block of data was corrupted after performing the logical check on the data contained with the block of data.
    Type: Application
    Filed: April 25, 2002
    Publication date: July 24, 2003
    Applicant: ORACLE CORPORATION
    Inventors: Juan R. Loaiza, Wei-Ming Hu, Jingling William Lee
  • Data integrity verification mechanism
    Publication number: 20020049950
    Abstract: A method and apparatus is provided for maintaining data integrity. According to the method, a physical checksum calculation is performed on a block of data. After performing the physical checksum calculation, a logical check is performed on the data contained with the block of data. If the block of data passes the logical check, then the block of data may be written to nonvolatile memory. Thereafter, when the block of data is read from nonvolatile memory a physical checksum verification procedure is performed on the block of data to determine whether the block of data was corrupted after performing the logical check on the data contained with the block of data.
    Type: Application
    Filed: January 18, 2001
    Publication date: April 25, 2002
    Inventors: Juan R. Loaiza, Wei-Ming Hu, Jingling William Lee