Abstract: In giving a travel command to an unmanned vehicle in both-side loading, or in setting a position of a loading point in both-side loading, whether a working machine of a loading machine is positioned on left-loading point side or right-loading point side is discriminated in correlation between an orientation or a position of the working machine when the travel command is instructed and a direction or a position of the boundary line. In setting the position of the loading point in both-side loading, whether the working machine of the loading machine is positioned on left-loading point side or right-loading point side is discriminated in correlation between the orientation or the position of the working machine when position setting of loading point is instructed and the direction or the position of the boundary line.

Abstract: A moving platform INS range corrector (“MPIRC”) module and its method of operation are disclosed for providing navigation and positioning information. The module comprises: means, such as a receiver, for receiving a first set of absolute navigational information from an external source (such as satellites in case of GNSS); an inertial sensor unit for generating a second set of navigational information at the module; and a transceiver, for receiving and/or transmitting signals and estimating distance measurement from a known position and receiving position coordinates. The navigational information is used by a processor programmed with a core algorithm, to produce a navigation solution (which comprises position, velocity and attitude). The system has the following attributes: the solution is produced seamlessly, even if one source of navigational information is temporarily out of service; the accuracy of the solution is assisted by use of distance and position coordinate measurement from a known position.

Abstract: An information processing apparatus including a positioning unit that determines a position of the information processing apparatus based on an external signal; a sensor unit that detects a change in position of the information processing apparatus; and a processing unit that measures, according to a change in position detected at the sensor unit, an amount of displacement of the information processing apparatus from a first time when the positioning unit starts to determine the position of the information processing apparatus to a second time when the positioning unit completes determining the position of the information processing apparatus; and identifies a position of the information processing apparatus at the first time by compensating the position of the information processing apparatus determined by the positioning unit at the second time with the amount of displacement of the information processing apparatus.

Abstract: Methods and apparatus are provided for measuring a position of a mobile terminal. A first position is calculated by using a GPS signal. A visible light communication mode of the mobile terminal is activated, when the first position exceeds a predetermined error range. Visible light communication device position information is received. A third position is calculated by using a second position, which corresponds to a position prior to the first position, and the visible light communication device position information.

Abstract: An unambiguous heading direction is calculated to determine the forward/reverse state of a vehicle. A heading alignment error is determined at step 100, being the difference between a GNSS direction of motion and the unresolved IMU heading of the vehicle. The heading alignment error is adjusted by 180° to be within a predetermined range at step 200. The unresolved IMU heading of the vehicle 10 is adjusted using the heading alignment error to determine an ambiguous error corrected IMU heading at step 300. Step 400 determines whether the ambiguous error corrected IMU heading is substantially in the true direction of the nose of the vehicle. The unambiguous heading direction is calculated at step 500 by offsetting the ambiguous error corrected IMU heading by 180 degrees if the ambiguous error corrected IMU heading is substantially opposite the true direction of the nose the vehicle of the vehicle.

Abstract: A universal remote monitoring system for irrigation systems having a self-contained remote terminal unit mounted at an outer portion of the irrigation system that is independent of the irrigation system's electrical control and power circuitry. The unit includes a programmable, three-axis accelerometer to detect lateral movement of the pivot arm in either direction. The unit can also include a global positioning system for producing coordinate data, a computer for processing the accelerometer movement data and GPS coordinate data into operational data, and a transmitter for delivering the operational data to a communications satellite or terrestrial communications tower. The satellite or terrestrial communications tower relays the operational data through a communications network into a remote internet-connected service computer that generates information messages to mobile operator devices informing the operator of movement status, water delivery status, position status and other operational information.

Abstract: Disclosed herein is an apparatus and method for providing an indoor navigation service. An apparatus includes a communication module for, when an indoor navigation service is executed, accessing a service server for providing the indoor navigation service. An image control module acquires indoor images in real time and displays the indoor images on an indoor navigation screen. An indoor location recognition module extracts indoor marker from the indoor images, obtains information about the extracted indoor marker, and recognizes a current location in the indoor space based on the indoor marker information. An indoor navigation module requests indoor navigation information to the service server based on information about the current location and destination information, and displays the indoor navigation information.

Abstract: The invention relates to a navigation device (200) comprising a display (240) for displaying a digital map to a user, a processor (210) configured to access digital map data and cause a digital map to be displayed to a user using the display, and a user interface operable by a user to enable the user to interact with the apparatus. The user interface is arranged to allow a user to select a continuous region present in the digital map by providing one or more indications on the digital map displayed to the user. The processor (210) is arranged to determine digital map data relating to the selected continuous region, and to carry out one or more mapping or navigation operations using the determined digital map data. The processor may calculate a route using a path selected on the map by a user.

Abstract: A driver-assistance method, in which an optical sensor records an environment of a vehicle, and ruts formed by the tracks of vehicles driving ahead are detected based on the acquired data, and a signal is output to the driver when leaving the ruts. Also described is a driver-assistance system for executing the method.

Abstract: Methods and systems are provided that inventory a plot of trees based on data including one or more (e.g., all) of radar images of the plot, spectral images of the plot (e.g., high resolution images taken by satellite), other data (e.g., elevation, slope, aspect), and actual tree survey data physically collected about the plot and/or another plot having similar characteristics. Although the actual tree survey data collected is typically less than the amount of actual survey data used by prior approaches, the present systems and methods are still capable of inventorying the entire plot with a high degree of confidence (e.g., at least 95% confidence).

Abstract: A computer-implemented system and method for bounding accuracy on a forecast of photovoltaic fleet power generation is provided. Measured irradiance observations for a plurality of locations are retrieved. The measured observations include a time series recorded at successive time periods. Forecast irradiance observations are retrieved. Error between the forecast and the measured observations is identified. A mean and standard deviation of the error is determined and combined into a fleet mean and fleet standard deviation. Sky clearness indexes are generated as a ratio of each measured observation and clear sky irradiance. A time series of the sky clearness indexes is formed. Fleet irradiance statistics are determined through statistical evaluation of the sky clearness indexes time series. A time series of power statistics is generated as a function of the fleet irradiance statistics and photovoltaic fleet power rating. A statistical confidence is associated with each power statistic in the time series.

Abstract: A method and system for reducing error contributions to gyroscopic measurements is provided. The method includes receiving a plurality of signals indicative of at least one component of the Earth's rotation substantially perpendicular to a portion of a wellbore and a component of the Earth's rotation substantially parallel to the portion of the wellbore. The plurality of signals is generated by one or more gyroscopic sensors within the portion of the wellbore. The method further includes calculating, using the plurality of signals and using one or more signals indicative of the Earth's rotation rate and one or more signals indicative of the latitude of the one or more gyroscopic sensors within the portion of the wellbore, a mass unbalance offset for the one or more gyroscopic sensors.

Abstract: The present disclosure is intended to overcome the problem of hydrogen contamination of the density signal. The approach is to compute the neutron capture portion of the total gamma ray counts and subtract it from the total counts resulting in a pure inelastic gamma ray measurement.

Abstract: A system and method estimate a property of an earth formation comprising hydrocarbon and non-hydrocarbon components. The method includes conveying a carrier down a borehole penetrating the earth formation, and performing a nuclear magnetic resonance (NMR) measurement on fluid in the earth formation with an NMR instrument disposed at the carrier to provide total NMR measurement data. The method also includes separating the total NMR measurement data into hydrocarbon-resultant NMR measurement data and non-hydrocarbon-resultant NMR measurement data, scaling a portion of the non-hydrocarbon-resultant NMR measurement data based on a correction factor to obtain scaled non-hydrocarbon-resultant NMR measurement data, and estimating the property based on the hydrocarbon-resultant NMR measurement data and the scaled non-hydrocarbon-resultant NMR measurement data.

Abstract: A Distributed Acoustic Sensing (DAS) fiber optical assembly comprises adjacent lengths of optical fiber A, B with different directional acoustic sensitivities, for example by providing the first length of optical fiber A with a first coating 35, such as acrylate, and the second length of optical fiber B with a second coating 36, such as copper, wherein the first and second coatings 35 and 36 may be selected such that the Poisson's ratio of the first length of coated fiber A is different from the Poisson's ratio of the second length of coated fiber B. The different Poisson's ratios and/or other properties of the adjacent lengths of optical fiber A and B improve their directional acoustic sensitivity and their ability to detect broadside (radial) acoustic waves.

Abstract: The present method provides spatial sampling of a seismic wavefield on the free surface of the earth at an effective spatial sampling denser than the physical layout of the sensors. The sensors are comprised of a sensing element for vertical particle motion at the earth's surface, and a sensing element for rotational motion around a horizontal axis at the surface of the earth. Stress and wavefield conditions known at the free surface of the earth allow the rotational sensing element to yield the transverse horizontal gradient of the vertical particle motion wavefield. This horizontal gradient and the vertical particle motion data are utilized in the technique of ordinate and slope sampling to yield an improved transverse spatial sampling of the vertical particle motion wavefield. The method has a wide range of application in seismic surveys in oil and gas exploration and production.

Abstract: Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.

Abstract: Systems and methods for data analysis are provided. In one embodiment, a method for analysis is provided, including electronically receiving sequence data; electronically receiving one or more reference data sequences related to at least an expression vector; associating the sequence data with at least one of the reference data sequences to identify a transgene flanking sequence; searching a genome for one or more insertion sites of the transgene flanking sequence; and annotating the genome and the one or more insertion sites within the genome when one or more insertion sites are found in said searching step.

Abstract: The present invention relates to a method and a device for the measurement of pressure signals in a blood treatment system, whereby system changes can be identified and can be differentiated additionally reliably between system changes in blood flow direction and in transmembrane direction in order to enable a targeted action.

Abstract: An automated method adapted to monitor and analyze patient data includes: receiving patient data from a set of patient monitoring devices; analyzing the patient data based at least partly on a set of evaluation criteria; and generating multiple status reports, each status report based at least partly on the analysis of patient data. A system adapted to collect and analyze patient data includes: multiple measurement devices, each device associated with a particular patient; a server device adapted to receive data from at least one of the measurement devices; and a storage adapted to store the received data. An automated method adapted to evaluate quality of care of patients having a chronic condition includes: receiving patient data; receiving a set of performance metrics; receiving a set of operating procedures; and generating a set of reports based at least partly on an evaluation of the patient data, performance metrics and operating procedures.

Abstract: A gas detecting system, device and method use a variable pulse voltage waveform to increase the temperature of a detecting unit of the gas detecting system so it reacts with gas molecules from a particular space, and outputs a sensing signal. A processing unit of the gas detecting system then performs calculations on the sensing signal, such that an analysis unit may determine the presence of a target gas in the particular space, and further the composition and concentration of the target gas within the particular space, thus providing a detection that is accurate, rapid and convenient.

Abstract: The present invention relates to a method suitable for establishing an analysis of a reactor effluent which is gaseous in process conditions and presents a gas phase and a liquid phase after cooling, comprising: providing a reactor producing a gaseous effluent at a temperature of at least about 100° C. and a pressure ranging from 0.

Abstract: Protein confidence values are calculated in proteomic analysis. A protein database is searched for proteins matching peptides found from mass spectrometry of a sample producing a set of proteins and a corresponding set of peptides. Peptide confidence values for the set of peptides are determined. Protein confidence values are calculated for the set of proteins based on the peptide confidence values. A protein is selected from the set of proteins with a largest protein confidence value, the largest protein confidence value is saved for the protein, the protein is removed from the set of proteins, and one or more peptides corresponding to the protein are removed from the set of peptides. Protein confidence values are recalculated for the set of proteins based on the peptide confidence values and an effect of removing the one or more peptides from the set of peptides.

Abstract: Methods and apparatus for estimating useful life of a seal in a process control device are disclosed. An example method includes establishing a plurality of travel ranges of a stem or shaft of a process control device. Each travel range corresponds to different values corresponding to stresses experienced by the seal of the process control device during an operational cycle. The example further includes determining a count of operational cycles associated with each of the travel ranges and estimating a total amount of useful life of the seal consumed based on the counts.

Abstract: An optical reticle inspection tool is used during a first inspection to obtain, for each set of one or more patch areas of the reticle, a reference average of multiple reference intensity values corresponding to light measured from sub-areas of each patch area. After using the reticle in photolithography processes, the optical reticle inspection tool is used during a second inspection to obtain, for each set of one or more patch areas, an average of multiple test intensity values corresponding to light measured from the of sub-areas. The first and second inspections use the same tool setup recipe. A difference intensity map is generated, and such map comprises map values that each corresponds to a difference between each average of the test and reference intensity values for each set of one or more patches. The difference intensity map indicates whether the reticle has degraded over time more than a predefined level.

Abstract: A structural health monitoring system comprising intelligent sensors, wherein the intelligent sensors are individually programmable and can be tuned to listen to specific frequencies based on a scaling factor based on the sensor's location in the system being monitored, a set of pre-known frequencies based on the sensor's location in the system being monitored, and the output of a central frequency-based system sensor.

Abstract: The present invention relates to a system and method for diagnosing cracking in a solidified shell in a mold, in which whether longitudinal cracking has occurred in the solidified shell can be diagnosed in real time by using a variation in temperature of the solidified shell in the mold during a continuous casting process. The system comprises: a plurality of temperature sensors arranged in a matrix form in a mold, wherein the plurality of temperature sensors are divided into a first group and a second group based on where cracking occurs; and a processor configured to: calculate a temperature difference between the temperature of the first group and the temperature of the second group from the temperatures detected by the plurality of temperature sensors; and determine, using the calculated temperature difference, whether cracking has occurred in a solidified shell discharged from the mold.

Abstract: The invention concerns an industrial robot (1) and a method to determine a torque having an effect on a limb of the robotic arm (2). The robotic arm (2) has several sequentially arranged limbs (3-7), of which a first limb (4) is stored relative to a second limb (5) of the limbs on an axis of rotation (A2), and using a stationary motor (11) relative to the second limb (4) and a gearbox (12) connected to the motor (11), is rotatable around the axis of rotation (A2).

Abstract: A system includes a rotor, a rotor antenna attached to the rotor, a strain detection device attached to the rotor, a programmable gain amplifier attached to the rotor, and a control module attached to the rotor. The strain detection device is configured to generate signals that indicate an amount of strain in the rotor. The programmable gain amplifier is configured to amplify the signals generated by the strain detection device by a gain value. The gain value is programmable. The control module is configured to program the gain value of the programmable gain amplifier and transmit, via the rotor antenna, digital data that is derived from the amplified signals.

Abstract: A method and system for determining the potential friction between a tyre and a rolling surface wherein: the tyre is rotated on the rolling surface so as to subject a crown portion of the tyre to an acceleration radial component; data are obtained which are representative of the acceleration radial component to which the crown portion is subjected during at least one tyre revolution; starting from the data, data are selected which are representative of at least one transition region of the acceleration radial component; the selected data are processed so as to obtain information correlated with the steepness of transition of the at least one transition region; and the potential friction is estimated on the basis of the information correlated with the steepness of transition.

Abstract: The mechanical load on a rolling element bearing is determined from the deformation of the rolling element bearing. The local deformation caused by the rolling contact forces is used to determine an average contribution to the mechanical load in order to average out the effect on the deformation as a result of the spread in diameter of the rolling elements of the bearing. The global deformation of the rolling element bearing is determined to calculate a dynamic contribution to the mechanical load. The dynamic contribution takes into account the variations of the mechanical load on the relevant time-scales that have been omitted from the average contribution as a result of the averaging operation. The total mechanical load is the sum of the average contribution and the dynamic contribution.

Abstract: A method for measuring the deformation of a turbo-machine blade including: a step of positioning at least one accelerometer onto a local point of the turbo-machine blade; a first step of measuring the centrifugal force, by the accelerometer, at the local point of the turbo-machine blade along the given measurement direction at a first predetermined speed; a second step of measuring the centrifugal, at a second predetermined speed; a step of determining the angular displacement of the measurement direction of the accelerometer relative to the centrifugal direction as a function of the first acceleration measurement and the second acceleration measurement, said angular displacement corresponding to an angular deformation of the local point of the turbo-machine blade.

Abstract: There is described a method for continuous online monitoring of a pulsating pump. A first step involves monitoring discharge pressure patterns caused by each stroke of the pulsating pump. A second step involves using a computer processing unit to analyse each pressure spike in the discharge pressure patterns and arrive at derived calculations for stroke length, stroke frequency and flow rate. A width of the base of the pressure spike is indicative of pump stroke frequency and an area of the pressure spike being indicative of fluid pumped per stroke. The pump's stroke length and the pump flow rate is fluid pumped per stroke multiplied by stroke frequency.

Abstract: Usage of a utility in a multi-unit building is apportioned to a single unit by measuring the total usage of the utility using a meter unit to produce a total usage measurement, then positioning at least one sensor unit in a single unit of the multi-unit building and monitoring usage of the utility by the single unit using the at least one sensor unit to produce monitoring data. Then a processor unit receives the total usage measurement and the monitoring data and correlates them to generate correlated data. Finally, the processor unit apportions the total usage measurement to the single unit based on the correlated data.

Abstract: The multiphase flow measurement system and method includes video sensors and illumination along a pipe upstream, and a similar arrangement of sensors and illumination downstream displaced from the first location by a known distance utilized for velocity calculation between images at both locations. Image capturing and processing is done from video data at both locations. Objects corresponding to each flow phase in the video images are characterized and sorted by size, color, spectral properties, shapes, and pattern features using automatic pattern recognition. Image cross-correlation and pattern recognition are applied to each group of objects corresponding to one or more flow phases to estimate the velocity of each phase based on the delay calculation. Flow velocity is calculated from the weighted average of the phase velocities. Overall flow type is estimated using the estimated phase velocities and the areas occupied by the objects corresponding to each phase in the images.

Abstract: A method of interrogating sensors of SAW type, which allows notably the gathering of physical measurements of parameters carried out by SAW sensors, the method for gathering the measurement of an SAW sensor comprising a first step of generating and emitting an electromagnetic signal corresponding to the dilated time-reversal of a dilation coefficient k, of an impulse response signature which is characteristic of the SAW sensor, a second step of gathering a signal received as echo originating from the SAW sensor, a third step of determining a maximum of cross-correlation of the signal received as echo during the second step, the first step being applied with a set of values of the dilation coefficient k in a determined domain, the measurement of a physical parameter then being determined by the dilation coefficient k for which the power or the amplitude of the signal gathered as echo is a maximum.

Abstract: [Problem] A method for measuring a viscoelastic modulus of a substance and an apparatus for measuring the viscoelastic modulus of the substance are provided for allowing information on viscoelasticity of an adsorption substance to be expressed by moduli G? and G? which are generally used when expressing viscoelasticity, and for further allowing calculation of the viscoelastic modulus in real time.

Abstract: A semiconductor device structure is embedded within a semiconductor chip that calibrates a photon-emission luminosity scale by running multiple known currents through the device. The method comprises embedding at least one photon emission device in an integrated circuit having at least one functional device. A control current is applied to the at least one photon emission device. The photon emission intensity produced by the at least one photon emission device is captured. The current density of the at least one photon emission device is calculated. A test current is applied to the at least one functional device. The photon emission intensity produced by the at least one functional device is captured. The current density of the at least one functional device is estimated based on a comparison with the calculated current density of the at least one photon emission device.

Abstract: A method specially designed for detecting events associated with partial discharges (PDs) in high voltage cables includes the identification of the location and the evaluation of the amplitude and rate of repetition per period of the grid voltage, with the possibility of identifying different sources producing PD signals as a function of the location thereof and recognising the type of defect associated with PDs in the same location. Generated electric signals are measured and the discriminated in relation to the background noise. A system for carrying out the method includes devices for discriminating the noise in relation to the transient waveform of the PD, determining the parameters associated therewith, determining the map of sources of PDs along the length of the cable, graphically representing the sources, and identifying the patterns of the sources of PDs separated as a function of the location thereof along the length of the cable.

Abstract: A system and method are provided for calculating power using a voltage waveform shape measurement from a contactless sensor. An electrically conductive medium carries alternating current (AC) electrical current, associated with an AC voltage, from a source node to a destination node. AC current is measured through the electrically conductive medium. Using a contactless sensor, an AC voltage waveform shape is measured. The power usage at the destination node is calculated in response to the AC current measurement, the measurement of the AC voltage waveform shape, and an AC voltage potential. For simplicity, the AC current and AC voltage waveform shape may both be measured at a first node located between the source node and the destination node. The AC voltage potential used in the power usage calculation may be an estimate, an actual measurement, or a value supplied by an external source (e.g., the power utility).

Abstract: Methods and systems for providing software power analysis. In an example, a computerized method, and system for performing the method includes determining at least one performance monitoring counter value for at least one processor. A frequency of operation is determined for the processor. A power dissipation level is calculated for the processor using a computing device and the power dissipation level is provided as an output. In an example, at least one application programming interface is received. In an example, at least one application is run. In an example, a default file is generated. The default file contains at least one power model parameter and at least one estimated frequency of operation. In an example, several performance monitoring counter values are generated for at least one core in a multi-core processor. In an example, a software power analyzer control thread is executed.

Abstract: Disclosed herein are methods, apparatuses, and systems for mirroring instruments. In an embodiment, a plurality of mirror capable devices may report their capability. A mirror capable device may be selected from the plurality of mirror capable devices based on signaling conditions associated with the utility device's power consumption.

Abstract: An embodiment of an electronic assembly may include a power meter, a network interface, and a processing unit to log data received from the power meter and upload the data through the network interface, wherein the processing unit operates an extensible run-time environment for add-on software modules. Another embodiment of an electronic assembly may include a meter interface, a network interface, and a processing unit to perform power calculations on signals received at the meter interface, log meter data from the power calculations, and upload the meter data through the network interface, wherein the processing unit operates an extensible run-time environment for add-on software modules.

Abstract: A detection circuit includes an amplifier circuit, a rechargeable unit, a first comparator, a second comparator, a reference voltage providing circuit, a first resistor R1, a second resistor R2, and a processing unit. The amplifier circuit is connected to a bridge circuit sensor and amplifies signals output by the bridge circuit sensor to an output voltage Vo. The reference voltage providing circuit provides a reference voltage Vref1. A charge current of the rechargeable unit is (Vref1?V0)/(R1+R2), and a discharge current is (Vref1?VCC)/R1. The processing unit controls the rechargeable unit to be charged for a time period T1 and to be discharged during a time period T2. The processing unit then calculates the output voltage Vo according to an equation: (Vref1?V0)×T1/(R1+R2)=(Vref1?VCC)×T2/R1, and obtains the signals according to the output voltage Vo.

Abstract: The invention relates to an operational state determination apparatus (1) for determining whether a variation in a determined electrical parameter of an electrical network (2) is caused by a variation in an operational state of an electrical consumer of the electrical network. The electrical network comprises multiple electrical consumers (3, 4, 5) and a voltage source (6), wherein a variation classification unit (10) determines whether a variation in the determined electrical parameter of the electrical network is caused by a variation in the operational state of an electrical consumer of the network depending on a decision variable which depends on a variation in a measured voltage and a variation in a measured current of the electrical network. This determination can be performed, without directly using the variation in the determined electrical parameter of the electrical network and is therefore less influenced by random voltage fluctuations in the electrical network.

Abstract: A capacitance detecting method disclosed herein, which achieves a good detection accuracy, a good resolution, and a high-speed operation, (A)(a) drives, on the basis of code sequences (di (=di1, . . . , diN, where i=1, . . . , M)) which are orthogonal to one another, drive lines (DL1, . . . , DLM) in parallel for each of (I) a first capacitance column (Ci1) between the drive lines and a first sense line (SL1) and (II) a second capacitance column (Ci2) between the drive lines and a second sense line (SL2) and (b) outputs (sFirst=(s11, . . . , s1N)) from the column (Ci1) and outputs (sSecond=(s21, . . . , s2N)) from the column (Ci2), and (B) estimates (a) on the basis of inner product operation of the outputs (sFirst) and the code sequences (di), a first capacitance value in the column (Ci1) and (b) on the basis of inner product operation of the outputs (sSecond) and the code sequences (di), a second capacitance value in the column (Ci2).

Abstract: A phase detector includes a counter to generate the integer portion of a number of complete cycles of an output clock at each active edge of a reference clock. A time to digital converter in the phase detector generates the fractional portion of the number of complete cycles of the output clock at each active edge of the reference clock. The sum of the fractional portion and the integer portion is subtracted from an accumulated value obtained by accumulating a pre-determined number to generate an error signal as the output of the phase detector. The counter is read at an active edge of one of two re-timed clocks derived from the reference clock. Each of the two re-timed clocks is generated based on a comparison of the fractional portion with a pair of thresholds. Errors due to metastability in reading the counter are thereby avoided.

Abstract: The invention relates to a method for evaluating the effects of a multiconductor interconnection on electrical variables in an electronic circuit or system, which takes into account the frequency dependent couplings between the conductors to obtain an accurate evaluation of effects such as propagation delay, attenuation, linear distortions, echo and crosstalk. The method comprises the steps of: identifying segments having suitable properties; defining, for each segment, a per-unit-length external impedance matrix of the segment and a per-unit-length internal impedance matrix of the segment; defining, for each segment, a model of the per-unit-length internal impedance matrix of the segment; and simulating the circuit using, for each segment, a multiconductor transmission line model and the model of the per-unit-length internal impedance matrix of the segment defined at the previous step.

Abstract: Provided are techniques for numerically integrating an intensity distribution function over a numerical aperture in a manner dependent on a determination of whether the numerical aperture spans a Rayleigh singularity. Where a singularity exists, Gaussian quadrature (cubature) is performed using a set of weights and points (nodes) that account for the effect of the Wood anomaly present within the aperture space. The numerical aperture may be divided into subregions separated by curves where the Wood anomaly condition is satisfied. Each subregion is then numerically integrated and a weighted sum of the subregion contributions is the estimate of the integral. Alternatively, generalized Gaussian quadrature (cubature) is performed where an analytical polynomial function which accounts for the effect of the Wood anomaly present within the aperture space is integrated. Points and nodes generated from a fit of the analytical polynomial function are then used for integration of the intensity distribution function.

Abstract: According to an aspect of the invention a method for calibrating a measurement device is conceived wherein: a calibration device is brought into close proximity of the measurement device such that a data communication link is established between the measurement device and the calibration device; wherein the following steps are performed while the calibration device and the measurement device are in close proximity of each other: the calibration device performs a measurement of at least one physical phenomenon; the measurement device performs a measurement of the same physical phenomenon; the result of the measurement by the measurement device is compared with the result of the measurement by the calibration device; and calibration parameters are computed based on a difference between the result of the measurement by the measurement device and the result of the measurement by the calibration device.