Wilson C Chan

7209990, Apr 24, 2007

Apr 5, 2005

11/099771

Angelo Pruscino - Redwood City CA, US
Michael Zoll - Redwood City CA, US
Wilson Chan - San Mateo CA, US

Oracle International Corporation - Redwood Shores CA

G06F 13/36
G06F 13/362
G06F 9/46
G06F 12/00

710200, 710108, 710110, 718104, 707 8, 709226, 709229, 711147

Locks are placed in a convert queue in a way that compensates for queue bias. Rather than always placing a remote lock in a queue at the tail, a remote lock can be placed further up in the queue, and possibly be interleaved with local locks. As a result, remote processes are granted locks more frequently and swiftly. Locks are placed in a convert queue according based on queue placement factors, which are factors accounted for when placing a lock in a queue.

7735089, Jun 8, 2010

Mar 8, 2005

11/075068

Wilson Chan - San Mateo CA, US

Oracle International Corporation - Redwood Shores CA

G06F 9/46
G06F 17/30
G06F 12/00

718108, 707 8, 710200

A method of deadlock detection is disclosed which adjusts the detection technique based on statistics maintained for tracking the number of actual deadlocks that are detected in a distributed system, and for which types of locks are most frequently involved in deadlocks. When deadlocks occur rarely, the deadlock detection may be tuned down, for example, by reducing a threshold value which determines timeouts for waiting lock requests. When it is determined that actual deadlocks are detected frequently, the processing time for deadlock detection may be reduced, for example, by using parallel forward or backward search operations and/or by according higher priority in deadlock detection processing to locks which are more likely to involve deadlocks.

7809690, Oct 5, 2010

Jul 13, 2004

10/891433

Stefan Pommerenk - Hayward CA, US
Carol Colrain - Redwood Shores CA, US
Wilson Chan - San Mateo CA, US
Angelo Pruscino - Los Altos CA, US

Oracle International Corporation - Redwood Shores CA

G06F 17/30

707674, 707675, 707678, 707679

A method and apparatus for selecting one or more instances to perform database recovery is provided. According to one aspect, one or more performance metrics are determined for each instance on each node in a cluster. Based on these performance metrics, which may be weighted to give one or more metrics more significance relative to the other metrics, an overall score is determined for each instance on each surviving node when a node in the cluster fails. One or more instances with the highest of these scores are selected. The selected instances are assigned the task of performing the database recovery process. Because instances best able to handle to database recovery process are selected, the database recovery process consumes less time, thereby making data accessible in less time after a node fails.

7890950, Feb 15, 2011

May 31, 2005

11/141127

Mihir Nanavati - Santa Clara CA, US
Xuejun Xu - Cupertino CA, US
Wilson Chan - San Jose CA, US
Nobuo Griffin - San Francisco CA, US

Adobe Systems Incorporated - San Jose CA

G06F 9/445
G06F 21/00

717174, 705 51

A method, an apparatus and a system perform software uninstallation that integrates transfer activation. In some embodiments, a method includes uninstalling software from a machine that is activated on the machine. The software has a limited number of activations. The uninstalling operation comprises deactivating the software on the machine.

7917596, Mar 29, 2011

Jan 7, 2009

12/350182

Wilson Chan - San Mateo CA, US
Angelo Pruscino - Los Altos CA, US
Michael Zoll - Foster City CA, US

Oracle International Corporation - Redwood Shores CA

G06F 15/16
G06F 12/00

709208, 717168

Described herein are techniques for using super masters to coordinate accesses by nodes in a database server cluster to data stored in a database. In many cases, the number of inter-nodal messages is reduced, thereby saving the overheads attendant to coordinating accesses in such a system.

7930675, Apr 19, 2011

Dec 26, 2007

11/964678

Oleg Levitsky - San Jose CA, US
Kit Lam Cheong - Palo Alto CA, US
Wilson Chan - San Mateo CA, US
Dongzi Liu - Cupertino CA, US

Cadence Design Systems, Inc. - San Jose CA

G06F 17/50
G06F 9/455

716134, 716113, 716115

Operations are performed in EDA tools that operate upon partitions or discrete portions of an electronic design, in which the partitions or discrete portions of the design are expanded to account for effects to/from other areas in the design. Identification is made of the portions of the design that are external to the partitions, and depending upon the type of expected effects, would then be considered during optimization and analysis of the partitions. This is implemented by logically expanding the partition to include consideration of the external portions during timing optimization and analysis. By considering an expanded partition for timing optimization and analysis, it is possible to identify unintended problems caused by the timing optimization at an earlier stage of the design process.

8081227, Dec 20, 2011

Nov 30, 2006

11/607302

Grace Kim - San Mateo CA, US
Wilson Chan - San Jose CA, US
Sheryl Ehrlich - La Honda CA, US

Adobe Systems Incorporated - San Jose CA

H04N 5/232
H04N 5/225

3482113, 34833304

An image for which a quality indicator is to be displayed is obtained. The image is processed to obtain a quality value associated with the quality of the image. The quality indicator based at least in part on the quality value is displayed, wherein the quality indicator is displayed with a displayed version of the image.

8117488, Feb 14, 2012

Oct 23, 2009

12/605248

Wilson Chan - San Mateo CA, US
Angelo Pruscino - Los Altos CA, US
Tak Fung Wang - Redwood City CA, US

Oracle International Corporation - Redwood Shores CA

G06F 11/00
G06F 11/07

714 43, 714 411, 714 42, 714 421

Database server instances in a database server cluster broadcast, to other instances in the cluster, information concerning certain problem events. Because each server instance is aware of problems that other server instances are experiencing, each server instance is enabled to make more intelligent decisions regarding the actions that it should perform in response to the problems that the server instance is experiencing. Instead of terminating itself, a server instance might opt to wait for a longer amount of time for an operation to complete. The server instance may do so due to the server instance having received information that indicates that other server instances are experiencing similar problems. Whenever the information received from other server instances makes it appear that a problem is unlikely to be solved in the cluster as a whole by terminating a server instance, that server instance may continue to wait instead of terminating itself.