| 5440741 |
Software overload control method |
| Aug-8-1995 |
A mechanism and method control software overloads in a communication network system to preserve the throughput capacity of the system in a simple and efficient manner. System load is regulated by accepting,... |
| 5437032 |
Task scheduler for a miltiprocessor system |
| Jul-25-1995 |
A task scheduler for use in a multiprocessor, multitasking system in which a plurality of processor complexes, each containing one or more processors, concurrently execute tasks into which jobs such as... |
| 5432932 |
System and method for dynamically controlling remote processes from a performance monitor |
| Jul-11-1995 |
Local and remote processes can be controlled from a data processing system performance monitor. Multiple processes can be controlled concurrently with a single action selected. Processes to be controlled... |
| 5432924 |
Method and system for selectively applying an appropriate object ownership model |
| Jul-11-1995 |
A method and system for applying an appropriate object ownership model is provided. In a preferred embodiment, an operating system selectively applies an object ownership model with which running programs... |
| 5430880 |
Apparatus and method for controlling the time assignment of the processing power of a data processing system |
| Jul-4-1995 |
An optimum utilization of the processing power of a data processing system is made possible by information marking a special processing state assigned to those jobs that can be arbitrarily shifted in the... |
| 5430874 |
Control method and system for managing memory control blocks of programmed tasks in a multi-processing system |
| Jul-4-1995 |
A method and system for reducing overhead time required to search for memory blocks having programmed executable tasks. The system includes a memory control block queue for managing all memory control... |
| 5428789 |
Method and apparatus for optimizing user response time in a priority preemptive operating system |
| Jun-27-1995 |
A method in a computer system providing user control over application completion performance and recovering lost computational cycles incurred while running pooling and non-pooling applications concurrently... |
| 5394548 |
Multi-media scheduling system |
| Feb-28-1995 |
A multi-media scheduling system for scheduling multi-media applications which include media having priorities based on time restrictions. The multi-media scheduling system includes a managing unit for... |
| 5390300 |
Real time I/O operation in a vector processing computer system by running designated processors in privileged mode and bypass the operating system |
| Feb-14-1995 |
The present invention provides a vector processing computer system adapted for real-time I/O. The present invention combines a rotating priority interrupt scheme, dedicated real-time interrupt lines for... |
| 5386561 |
Method of integrated system load control through dynamic time-slicing in a virtual storage environment |
| Jan-31-1995 |
A priority preemptive, time distribution operating system operating in accordance with the method of the present invention provides enhanced efficiency in operation of a data processing system having a... |
| 5379428 |
Hardware process scheduler and processor interrupter for parallel processing computer systems |
| Jan-3-1995 |
A general-purpose device for scheduling and dispatching processes having variable processing priorities in parallel processing computer systems having multiple processors. The device comprises a plurality... |
| 5377354 |
Method and system for sorting and prioritizing electronic mail messages |
| Dec-27-1994 |
A method and apparatus for prioritizing a plurality of incoming electronic mail messages for a user uses a user created and modified rules-control (12) which is stored in a rules-store (12). Incoming messages... |
| 5377352 |
Method of scheduling tasks with priority to interrupted task locking shared resource |
| Dec-27-1994 |
A computer system including a plurality of shared resources to be used exclusively by a plurality of tasks. Upon occurrence of an interrupt, execution of the task running at that time is suspended to allow... |
| 5367679 |
Round robin scheduler using a scheduler carry operation for arbitration |
| Nov-22-1994 |
A scheduler for scheduling communication by a plurality of clients who compete to use a shared resource. Each client asserts a request bit to request use of the shared resource, and receives a grant bit... |
| 5361375 |
Virtual computer system having input/output interrupt control of virtual machines |
| Nov-1-1994 |
A virtual computer system including a plurality of virtual machines running in a central processing unit with time shared, an input/output unit generating an input/output interrupt request, and a specific... |
| 5339427 |
Method and apparatus for distributed locking of shared data, employing a central coupling facility |
| Aug-16-1994 |
A shared coupling facility contains system lock management (SLM) means for supporting a distributed locking protocol used by a plurality of sharing lock managers each executing on a processor having access... |
| 5339425 |
Operating system for a process controller |
| Aug-16-1994 |
A controller of the type used in process control includes a plurality of modular I/O units. The I/O units includes I/O circuits which may be of four basic types: digital input circuits, digital output... |
| 5333319 |
Virtual storage data processor with enhanced dispatching priority allocation of CPU resources |
| Jul-26-1994 |
Dispatching improvements in operating systems are described for multiprogrammed data processing systems. A common priority dispatching mechanism for applications that span multiple address spaces in multi-address... |
| 5317738 |
Process affinity scheduling method and apparatus |
| May-31-1994 |
Process migration is controlled in multiple processor system by a circuit providing a rapid lookup to see if an available process has any affinity for the top N entries on the system run queue. If the... |
| 5311461 |
Programmable priority and selective blocking in a compute system |
| May-10-1994 |
In a computer system in which conflicting requests for resources are prioritized, a programmable priority determination method and system. Relative priority between competing sources or requests is represented... |
| 5295265 |
Device for enhancing the performance of a real time executive kernel associated with a multiprocessor structure that can include a large number of processors |
| Mar-15-1994 |
A device for enhancing the performance of a real time executive kernel associated with a multiprocessor structure possibly comprising a large number of processors comprises a real time operator behaving,... |
| 5295264 |
Modularly structured integrated services digital network (ISDN) communication system |
| Mar-15-1994 |
A modularly-structured integrated services digital network (ISDN) communication system comprises a system processor that should be available for a real-time operating system and for a timesharing operating... |
| 5276899 |
Multi processor sorting network for sorting while transmitting concurrently presented messages by message content to deliver a highest priority message |
| Jan-4-1994 |
A multiprocessor system intercouples the processors with an active logic network having a plurality of priority determining nodes. Messages applied concurrently to the network in groups are sorted, using... |
| 5261099 |
Synchronous communications scheduler allowing transient computing overloads using a request buffer |
| Nov-9-1993 |
Fast scheduling mechanism of tasks to be performed in a communication system, like a modem, and the scheduler for implementing the mechanism. The communication system receives, synchronously to a rate... |
| 5247677 |
Stochastic priority-based task scheduler |
| Sep-21-1993 |
A stochastic priority based scheduler for selecting executable tasks in a computer system is disclosed. The stochastic priority based scheduler selects tasks on the basis of a random number weighted by... |
| 5247675 |
Preemptive and non-preemptive scheduling and execution of program threads in a multitasking operating system |
| Sep-21-1993 |
A multitasking operating system permits application programs (and their developers) to influence a schedule of execution of program threads which constitute the application programs by specifying parameters... |
| 5247671 |
Scalable schedules for serial communications controller in data processing systems |
| Sep-21-1993 |
A serial communications adapter provides an interface to physical communications ports. A scheduler executing on the adapter schedules tasks at different priority levels, so that time-critical tasks are... |
| 5241676 |
Method for controlling process priority in semaphore operation |
| Aug-31-1993 |
In the P operation of a semaphore operation, the semaphore priority set in the semaphore is compared with the process priority of an execution process. When the semaphore priority is higher than the process... |
| 5220668 |
Digital data processor with maintenance and diagnostic system |
| Jun-15-1993 |
A state machine in a digital data processor in a UNIX-type operating system environment has state managers associated with the functional units of the data processor for indicating the state of the units;... |
| 5202991 |
Reducing the effect processor blocking |
| Apr-13-1993 |
The supply of available tasks that may be executed by a blocked processor while it is waiting for the end of a conflict with another processor, is controlled by temporarily lowering the interrupt priority... |
| 5193189 |
Programmable controller with multiple priority level task processing |
| Mar-9-1993 |
A programmable controller for operating a machine to perform programmed functions allows the user to allocate the amount of processing time to be devoted to a machine control program and to user defined... |
| 5175679 |
Control for electronic image processing systems |
| Dec-29-1992 |
A realtime control process for an electronic reprographic system in which background and job requests are dynamically partitioned into unique combinations of virtual machines for carrying out each request,... |
| 5170340 |
System state controller for electronic image processing systems |
| Dec-8-1992 |
A state controller for an electronic reprographic system for controlling system operations when processing requests in which the system has a plurality of hardware and software system components providing... |
| 5168566 |
Multi-task control device for central processor task execution control provided as a peripheral device and capable of prioritizing and timesharing the tasks |
| Dec-1-1992 |
A computer peripheral device incorporating a multi-task control device which is extremely useful for such programs controlling the microcomputer system. In particular, the multi-task control device effectively... |
| 5162999 |
Process and device for adjusting operating parameters of an internal combustion engine |
| Nov-10-1992 |
The invention relates to a method and a device for adjusting operating parameters of an internal combustion engine. Time-independent programs are executed in a low-priority background program and programs... |
| 5136708 |
Distributed office automation system with specific task assignment among workstations |
| Aug-4-1992 |
A distributed office automation system includes workstations and support stations which are interconnected via a network and which make use of the functionality of one another by subcontracting tasks.... |
| 5109512 |
Process for dispatching tasks among multiple information processors |
| Apr-28-1992 |
In connection with an information processing network in which multiple processing devices have individual cache memories and also share a main storage memory, a process is disclosed for allocating multiple... |
| 5095460 |
Rotating priority encoder operating by selectively masking input signals to a fixed priority encoder |
| Mar-10-1992 |
A rotating priority encoder for selecting from a number of input priority request lines that input request line which is active and which designated as having the highest priority. A mask unit selectively... |
| 5012409 |
Operating system for a multi-tasking operating environment |
| Apr-30-1991 |
A task scheduler system including an array of priority queues for use in a real time multitasking operating system including equation lists, configuration lists, a function library, input and output drivers,... |
| 5001666 |
Multiple interrupt tri-level microprocessor operating system |
| Mar-19-1991 |
A multiple interrupt tri-level microprocessor operating system (40) having particularly applicability in a two-way radio, includes an operating system that provides a background executive (47) to allow... |
| 4928222 |
Enhanced semaphore architecture |
| May-22-1990 |
An enhanced semaphore architecture, referred to herein as a "fullphore", combines the "P" and "V" operations of a semaphore into a single "S" operation capable of handling both consumer processes and producer... |
| 4908750 |
Data processing system having tunable operating system means |
| Mar-13-1990 |
A tunable operating system in a multiprogrammed data processing system provides improved throughput of tasks blocking on inter-task message requests before time-slice runout. A ready queue subset is defined... |
| 4855899 |
Multiple I/O bus virtual broadcast of programmed I/O instructions |
| Aug-8-1989 |
A method of performing an input/output process containing a programmed input/output (PIO) instruction in a multiprocessor system including at least two processors each having an associated I/O bus with... |
| 4837688 |
Multi-channel shared resource processor |
| Jun-6-1989 |
An external dispatcher distributes prioritize tasks to a plurality of processor channels. The processor channels then contend for one of two partitions for the execution of instructions assigned thereto... |
| 4805107 |
Task scheduler for a fault tolerant multiple node processing system |
| Feb-14-1989 |
A task scheduler for a fault tolerant multiple node processing system having a task activity list storing a set of application tasks, a priority scan list storing a selected portion of the set of application... |
| 4796178 |
Special purpose processor for off-loading many operating system functions in a large data processing system |
| Jan-3-1989 |
A task control mechanism for maintaining a queue of ready or available processes linked together according to an assigned priority for a plurality of central processors where the processors may be assigned... |
| 4794526 |
Microcomputer with priority scheduling |
| Dec-27-1988 |
A microcomputer comprising memory 60 and a process is arranged to execute a plurality of concurrent processes and share its time between them. The microcomputer includes as register (51) for indicating... |
| 4782462 |
Raster scan video controller with programmable prioritized sharing of display memory between update and display processes and programmable memory access termination |
| Nov-1-1988 |
In a bit-mapped display system, a logical subsystem for programmable sharing of access to a memory in a computer system among a plurality of system resources wherein various modes of operation are supported... |
| 4736318 |
Data processing system having tunable operating system means |
| Apr-5-1988 |
A tunable operating system in a multiprogrammed data processing system prevents lockout of I/O bound tasks of low priority by CPU bound tasks of high priority. A range signal in the master control block... |
| 4733347 |
Method and apparatus for synchronized concurrent processes |
| Mar-22-1988 |
A synchronized concurrent process system incorporating a data driven control with a time attribute being assigned to the shared data. The term "data driven control" means a process operation sequence control... |
