Abstract: Simulation of models within a distributed environment is facilitated. A model is partitioned based on clock domains, and communication between partitions on different processors is performed on synchronous clock boundaries. Further, data is exchanged across the network on latch boundaries. Thus, management aspects of the simulation, such as management associated with the global simulation time, are simplified.

Abstract: A programmable controller device has a main body with a CPU unit and I/O units connected by a bus line and a power unit for supplying power to the main body. The CPU unit has a memory with a user access area which is accessible by instruction of user program. The power unit generates status data related to itself such as its temperature. A data transmission path is provided between the CPU unit and the power unit for transmitting such status data to the user access area.

Abstract: A CNC machine tool deflection compensation system intergrated in a CNC machine tool Controller for providing continuous, accurate, real-time compensation for unintended and/or undesired axis coordinate deflections from a preprogrammed path of tool movement in a coordinate plane, so as to ensure that the tool remains on its programmed path irrespective of such deflections capable of continuously detecting, in real-time, the presence, magnitude an rate of change of such undesired deflections and simulataneoulsy genereating instrtuctions to initiate equal and opposite deflections at the same rate of change, thereby ensuring that the tool remains on its preprogrammed path irrespective of the inherently occuring undesired deflection and/or the precipitating causes(s) thereof. The algorithms empolyed provide for automatic gouge avoidance protection and/or relocation of the tool to safe positions when necessary.

Abstract: Method for modeling acidification within a porous medium as a result of the injection of an acid. A dual-medium model is constructed, considering a first sub-medium favorable to dissolution breakthroughs and a second sub-medium not favorable to dissolution breakthroughs. For each one of these sub-media, a metric-scale description of the acid transport, of the sub-medium and acid mass conservation and of the acid transfer from one sub-medium to the other sub-medium is achieved. This dual-medium model is then initialized from experimental calibrations. Finally, acidification of the medium is modelled by means of this dual-medium model.

Abstract: A PWM signal on which a dither signal is superimposed is used for adjusting a central position when controlling a solenoid valve. To improve this type of control process in which the amplitude of the dither signal depends on the current of the solenoid valve and thus on the PWM signal, the PWM signal and the dither signal are generated in a computer unit independently of the power regulation process. Forming the signals separately has the advantage of generating a constant amplitude for the dither signal each time a triggering signal is generated for the solenoid valve such that the armature of the solenoid valve can oscillate specifically about the central position and thereof at constant small vibrations. This allows frictional forces to be reliably reduced and the solenoid valve to be switched more rapidly while the load on the main computer is reduced.

Abstract: A semiconductor manufacturing system includes a semiconductor manufacturing apparatus, a first controller for controlling the semiconductor manufacturing apparatus, an auxiliary machine for the semiconductor manufacturing apparatus, a second controller for controlling the auxiliary machine, and a third controller for electrically coupling the first and second controllers. The second controller outputs an auxiliary machine-in-operation signal to the third controller when the auxiliary machine is operating, outputs an auxiliary machine-stopping signal to the third controller when the auxiliary machine is stopping, and operates or stops the auxiliary machine according to an instruction signal received from the third controller.

Abstract: A method and system is disclosed for monitoring and viewing physical parameters while the emulator is emulating a design. Additionally, the parameters are in real time or substantially real time, such as after a periodic update. In one embodiment, a monitoring portion of the emulator periodically monitors the emulator boards and power supplies for physical information. The physical information is communicated to a workstation for communication to a user. For example, the workstation can display the physical information in a graphical user interface (GUI) that shows which boards are plugged in the system and which slots are empty. In yet another aspect, the user can select a particular board in the system and view communication information, such as data errors, status, link errors, global errors, etc.

Abstract: A computer system used for carrying out engineering tasks as a part of an engineering project. The system includes a plurality of client computers and one or more server computers accessible by the client computers via a communications network. Distributed across these computers is a multi-tiered software system that includes system programs, application programs, and database programs. The system programs include a system objects module, a job manager module, an event manager module, and a workbook module. The system objects module provides security and authentication services. The application programs carry out at least some of the engineering tasks. The job manager module manages use of the application programs. The event manager module receives and distributes notifications between at least some of the modules. The workbook module provides a user of the application programs with engineering information related to one or more of the engineering tasks.

Abstract: A computer system having two or more controllers operating in a Master/Slave configuration is disclosed. In one embodiment, the computer system includes: a sensor panel having a first portion for generating a first set of sense signals indicative of a touch or no-touch condition on the first portion, and a second portion for generating a second set of sense signals indicative of a touch or no-touch condition on the second portion; a first device for receiving and processing the first set of output signals from the first portion of the panel; and a second device for receiving and processing the second set of output signals from the second portion of the panel, wherein the first and second devices operate cooperatively in a Master/Slave configuration.

Abstract: A method of determining a measurement uncertainty of a test system uses a test system model having a plurality of uncertainty terms entered into a simulator. The test system model is run on the simulator a sufficient number of iterations while randomly varying each of a first portion of the plurality of uncertainty terms within probability distributions to produce a statistically significant number of results of a selected parameter. The results are evaluated to determine a measurement uncertainty of the selected parameter.

Abstract: In one aspect, the invention provides a method for modeling the dynamic performance of a fixed cutter bit drilling earth formations. In one embodiment, the method includes selecting a drill bit and an earth formation to be represented as drilled, simulating the bit drilling the earth formation. The simulation includes at least numerically rotating the bit, calculating bit interaction with the earth formation during the rotating, and determining the forces on the cutters during the rotation based on the calculated interaction with earth formation and empirical data.

Abstract: Systems and methods for modeling a subscriber network experience. In one embodiment, a method includes the act of receiving a plurality of subscriber metrics associated with a subscriber to an access network. The method also includes the act of modeling the subscriber experience by applying at least one transformation to the plurality of subscriber metrics to produce a set of subscriber experience data. The metrics measure quality of service for a subscriber experience with the access network. Each element of the subscriber experience data quantifies an aspect of the subscriber experience.

Abstract: A computer-implemented method of predicting an output of a model includes receiving output data from a first run of a target predictive model. One or more additional sets of output data is received from runs of one or more alternate predictive model. The alternate predictive models predict parameters that relate to the output data of the first predictive model. A future output of a second run of the target predictive model is predicted based on the output data from the first run of the target predictive model and one or more sets of additional output data from runs of the alternate prediction model.

Abstract: A method and localization unit for localizing load coils within a transmission line. The load coil localization is achieved using a measurement of a Single-Ended Line Testing (SELT) parameter for the transmission line and an approximation of the SELT parameter obtained from a model of the transmission line. The model is based on a parameter vector ? including parameters describing the transmission properties of each load coil and cable section and the length of a plurality of individual cable sections as unknown independent parameters. The location of at least one load coil is determined by substantially minimizing a criterion function that represents a deviation between the measurement of the SELT parameter and the approximation of the SELT parameter obtained from the model. The load coil localization method and unit can be used for both symmetric and asymmetric transmission lines.

Abstract: A software tool for manufacturing system performance analysis includes modeling and analysis functions. A modeling isolation layer provides user access to the analysis capabilities through object-based model building and analysis invocations. Various model, performance and higher level analyses are performed through analysis modules kept separate from any end-user application programs by the modeling isolation layer.

Abstract: A method (and system) for executing a multiprocessor program written for a target instruction set architecture on a host computing system having a plurality of processors designed to process instructions of a second instruction set architecture, includes representing each portion of the program designed to run on a processor of the target computing system as one or more program threads to be executed on the host computing system.

Abstract: Test cases to test control strategies of a control process are specified in input files. The instructions in the input files are automatically read by a block tester, which interfaces with the control system to issue the instructions. As a test designer can create the instructions in the input files a priori, the tests may be carefully designed to avoid errors, in addition to performing exhaustive tests.

Abstract: A method is provided for generating an invertible 3D hydrodynamic earth model suitable for defining target characteristics of a subsurface area formed by a plurality of formations and comprising drilling positions of potential and real wells. The method comprises constructing an initial 3D earth model by combining solutions for a set of single 1D models, each of the models corresponding to a real or potential well drilling position and covering the entire respective aggregate of formations along the wellbore, with solutions for a relevant set of 2D earth models which are constructed only for single formations, and optimizing the constructed initial 3D earth model by defining an optimal set of formations and an optimal set of calibratable model parameters. A method and system are also provided for application of the earth model construction method for predicting overpressure evolution before and during drilling.

Abstract: Output feedback pole placement problems with parameter drift are solved with stabilizing solutions. Changes in system parameters trigger alerts in an automated manner. A representative method includes determining a set of solutions for an output feed pole placement problem, based on parameters of a physical system. The solutions are stable and well-conditioned for monitoring changes to the parameters of the physical system. The physical system is adjusted, or controlled, based on the solutions determined. Updated parameters of the physical system are acquired. A set of updated solutions for the output feedback pole placement problem are determined based on the updated parameters. The physical system is then adjusted, or controlled, based on the updated solutions determined. A system manager may also be notified of the updated parameters and/or the updated solutions. Furthermore, changes within the system may be monitored, and/or potentially critical changes within the system may be detected.

Abstract: A molding-system set-up process has: (i) a receiving operation, including receiving an attribute associated with a molded part, (ii) a determining operation, including determining a molding-system set-up parameter based on the attribute associated with the receiving operation, the molding-system set-up parameter being usable for setting up a molding-system operation, and (iii) a providing operation, including providing the molding-system set-up parameter.