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Class 710/200 - ACCESS LOCKING


Subclass of Class 710 - Electrical computers and digital data processing systems: input/output
Definition: Subject matter comprising means or steps for preventing
No. of applications: 104
Last issue date: 03/01/2012


    3  
Application No.Application TitleIssue Date
20060064527Adaptive message delivery system
A device monitors a system's available resources and produces either a deferred notification or an instant notification based on a comparison with an established threshold. The threshold may be adjusted if current or anticipated system resource utilization changes. Chan...
03/23/2006
20060036790Method, system, and program for returning attention to a processing system requesting a lock
Provided are method, system, and program for returning attention to a processing system requesting a lock. A lock request for a resource is received from the processing system. Indication is made of a connection path on which the processing system initially communicated...
02/16/2006
20060036789Method to switch the lock-bits combination used to lock a page table entry upon receiving system reset exceptions
A method, system, and computer instructions for changing the lock-bits combination used to lock a resource upon receiving a system reset exception. The present invention forces the software to use different lock-bits combinations based on the number of occurrences of sy...
02/16/2006
20050289270Control of the execution of a program
A method and a circuit of automatic control of the execution of a program by a microprocessor, including: assigning a digital decrement or increment to at least one function of the program; assigning a digital increment, respectively decrement, to at least one section c...
12/29/2005
20050283553Event based operating system, method, and apparatus for instrumentation and control systems
A method for operating a controller having a number of timers to thereby control a plurality of events greater than the number of timers, includes, between clock ticks, receiving one or more signals from sensors, switches, executing programs, or a combination therefore ...
12/22/2005
20050246462Maintaining time-date information for syncing low fidelity devices
Generally, the present invention provides for a distributed computing system that is capable of associating time-date information with a property value in the database. The distributed computing system has a device that stores properties in a database without correspond...
11/03/2005
20050246461Scheduling threads in a multi-processor computer
Scheduling threads in a multi-processor computer system including establishing an interrupt threshold for a thread, where the interrupt threshold represents a maximum permissible number of interrupts during thread execution on a processor; executing the thread on a curr...
11/03/2005
20050240699Safe process deactivation
One embodiment disclosed relates to a method of deactivating a process by a computer operating system. Threads of the process that are currently suspendable are moved to a stopped state. A process-wide deactivation operation is initiated. The process-wide deactivation o...
10/27/2005
20050235085Digital controller and engine controller using the same
The digital controller includes an interrupt generator for generating an interrupt signal at predetermined intervals, a task execution controller for controlling execution of a control task in response to an interrupt signal generated by the interrupt generator, and an ...
10/20/2005
20050228916Controller and resource management system and method with improved security for independently controlling and managing a computer system
A controller and resource management system and method with improved security for independently controlling and managing a computer system is provided. Control, management and security protection is provided while functioning: conceptually, logically, functionally, oper...
10/13/2005
20050228917Novel structure and method for interrupt detection and processing
An electronic system includes a processor and an interrupt structure. The interrupt structure handles interrupt information such as interrupt requests, interrupt function types, and interrupt data without involving the processor. The processor performs interrupt functio...
10/13/2005
20050203904System and method for measuring latch contention
A system and method is provided for measuring lock usage in a non-intrusive manner. Measurements are performed only when a lock is contended. When a lock is requested and the lock is available (i.e., is not contended), the only data gathered is a counter that is increme...
09/15/2005
20050177666Interrupt processing control
A data processing system 2 supporting interrupt handling is provided with an interrupt controller 24. The interrupt controller is responsive to save state data when interrupt processing is commenced by pre-emption of existing processing, whether that be background proce...
08/11/2005
20050154810Processor interrupt filtering
A method for processing an interrupt message in a system having a plurality of processors arranged into at least two partitions. The interrupt message is decoded to identify an interrupt source. If the interrupt source is not in an interrupt set, the interrupt is droppe...
07/14/2005
20050125580Interrupt redirection for virtual partitioning
The present disclosure relates to the handling of interrupts in a environment that utilizes virtual machines, and, more specifically, to the steering of interrupts between multiple logical processors running virtual machines. ...
06/09/2005
20050097252System for providing transitions between operating modes of a device
System for providing transitions between operating modes of a device. The system includes a method for providing transitions between a privileged and a non-privileged operating mode. The method comprises executing an application in the non-privileged mode, generating an...
05/05/2005
20050080963Method and system for autonomically adaptive mutexes
A method for managing a mutex in a data processing system is presented. For each mutex, an average acquisition cost is maintained that indicates an average consumption of computational resources that has been incurred by threads attempting to acquire the mutex. If a thr...
04/14/2005
20050080965Mechanism to control hardware interrupt acknowledgement in a virtual machine system
In one embodiment, a method includes recognizing an interrupt pending during an operation of guest software, determining that the interrupt is to cause a transition of control to a virtual machine monitor (VMM), determining whether the interrupt is to be acknowledged pr...
04/14/2005
20050080964Apparatus and method to provide redundant accessor availability
A method to provide redundant accessor availabilty in an automated data storage library. The method provides a data storage and retrieval system comprising one or more data storage devices a robot accessor and a gripper. Either at the same time or at a later time, the u...
04/14/2005
20050080962Hardware management of JAVA threads
A system for managing threads to handle transaction requests connected to input/output (I/O) subsystems to enable notification to threads to complete operations. ...
04/14/2005
20050066096Reducing latency when accessing task priority levels
One embodiment disclosed relates to a method of reducing access latency to a task priority register (TPR) of a local programmable interrupt controller unit within a microprocessor. A command is received to write an interrupt mask value to the TPR, and the interrupt mask...
03/24/2005
20050066095Multi-threaded write interface and methods for increasing the single file read and write throughput of a file server
A write interface in a file server provides permission management for concurrent access to data blocks of a file, ensures correct use and update of indirect blocks in a tree of the file, preallocates file blocks when the file is extended, solves access conflicts for con...
03/24/2005
20050050254Apparatus for preventing the theft of laptop computers
An apparatus for preventing the theft of laptop computers. with a self contained secure enclosure for a laptop computer, a way to mount the enclosure in a vertical orientation, a keyless mechanism to access enclosure, a way to better prevent access to the security enclo...
03/03/2005
20050033888Methods and structure for SCSI2 to SCSI3 reservation protocol mapping
Methods and associated structures for transparently mapping SCSI2 reservation protocol exchanges into corresponding SCSI3 reservation protocol exchanges. A mapping element may be operable within host systems that support SCSI2 reservation protocols. The mapping element ...
02/10/2005
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