Kung S Lin

US Patent:

6981264, Dec 27, 2005

Filed:

Jan 17, 2002

Appl. No.:

10/053443

Inventors:

Kung Yi Lin - Irvine CA, US
Subramaniam Ramamurthi - Rancho Santa Margarita CA, US

Assignee:

Unisys Corporation - Blue Bell PA

International Classification:

G06F003/00

US Classification:

719310

Abstract:

A method for providing a program which executes a sequence for handling a suspended task. The method includes the steps of performing a security check on a mainframe server. The program then detects a response from the suspended task, and then monitors and handles the response. Finally, the program re-activates the suspended task with the response.

US Patent:

7047527, May 16, 2006

Filed:

Jul 18, 2002

Appl. No.:

10/198821

Inventors:

Kung Yi Lin - Irvine CA, US
Subramaniam Ramamurthi - Rancho Santa Margarita CA, US

Assignee:

Unisys Corporation - Blue Bell PA

International Classification:

G06F 9/44

US Classification:

717170, 717122

Abstract:

A method for providing a program which enables the identification and compatibility of software versions. The method includes the steps of performing a security verification and check to receive server software version. The program then retrieves database creation timestamp and database version, and then returns this information to the client. Finally, the program returns the information about the various software version levels that are residing in multiple databases.

US Patent:

7617206, Nov 10, 2009

Filed:

Apr 6, 2006

Appl. No.:

11/398929

Inventors:

Johnny Hu - Irvine CA, US
Minh-Nguyet Tran - Cypress CA, US
Courtney Chi Hoang - Fountain Valley CA, US
Kung Yi Lin - Irvine CA, US

Assignee:

Unisys Corporation - BlueBell PA

International Classification:

G06F 17/30

US Classification:

707 5, 707 3

Abstract:

A data management system is provided with a database which has internal tanks for storing large object data according to the size of the data involved. An analysis method and system is provided which will search out and calculate the space of each of the tank files involved and will report on how the space of each tank file is being used in terms of existing large objects, in terms of unused and available space, and in terms of deleted large object spaces.

US Patent:

7263537, Aug 28, 2007

Filed:

Aug 26, 2004

Appl. No.:

10/927384

Inventors:

Kung Yi Lin - Irvine CA, US
Shirley Jean Ritsch - Lake Forest CA, US
Donald Ralph Hart - Mission Viejo CA, US

Assignee:

Unisys Corporation - Blue Bell PA

International Classification:

G06F 17/30

US Classification:

707204

Abstract:

A method for creating multiple QUIESCE DATABASE Copies (QDC) on a single server by mirroring a disk copy of a live database that is in a quiesced state and splitting them from their source, and then bringing the mirrored disks containing online snapshots back online to the server.

US Patent:

20120265731, Oct 18, 2012

Filed:

Nov 17, 2011

Appl. No.:

13/298394

Inventors:

Kung Lin - Irvine CA, US
Donald Hart - Foothill Ranch CA, US

International Classification:

G06F 17/30

US Classification:

707636, 707E17005

Abstract:

Methods and systems are disclosed to perform dynamic disk data redistribution in a database environment. The methods and systems disclosed herein provide for the transparent redistribution of data across multiple physical disks of a database while maintaining accessibility to the database. Methods and systems are also disclosed for handling requests to perform database operations on data that is in the process of being redistributed.

US Patent:

20130132976, May 23, 2013

Filed:

Nov 17, 2011

Appl. No.:

13/298382

Inventors:

KUNG YI LIN - Irvine CA, US

International Classification:

G06F 9/44

US Classification:

719318

Abstract:

Systems and methods are disclosed that gather database event information that may be used by a debugger to pinpoint problems in applications that lead to inefficiencies in the database. For example, a database system may gather application-specific information from an application execution stack to include in the event log file. The application-specific information provides details as to what portion of the application resulted in the database event. The database event information may then be provided to another application or a user via a user interface.

US Patent:

6877016, Apr 5, 2005

Filed:

Sep 13, 2001

Appl. No.:

09/951996

Inventors:

Donald Ralph Hart - Irvine CA, US
Kung Yi Lin - Irvine CA, US

Assignee:

Unisys Corporation - Blue Bell PA

International Classification:

G06F012/00
G06F017/30

US Classification:

707201, 707204

Abstract:

An on-line primary database is momentarily QUIESCED to enable a physically consistent snapshot of the primary database to be mirrored to a secondary database as a backup while allowing the primary database to continue on servicing multiple user applications.

US Patent:

20160140132, May 19, 2016

Filed:

Nov 19, 2014

Appl. No.:

14/547478

Inventors:

Kung Y Lin - Irvine CA, US
Johnny Hu - Irvine CA, US
Alma DeJesus - Irvine CA, US

Assignee:

Unisys Corporation - Blue Bell PA

International Classification:

G06F 17/30

Abstract:

Methods and systems are disclosed to perform online disk data redistribution in a database environment. The methods and systems disclosed herein provide for the redistribution of data across multiple physical disks of a database while when a new physical storage device is added to the database. In embodiments, online redistribution of the data may include creating a temporary file, copying live database from a first physical storage to the temporary file, creating a checkpoint for the database, writing the temporary file to a second physical storage device that is added to the database, and purging the live database file and the temporary database file.