Abstract: Human observers stationed on or near beaches gather subjective observations of one or more observable beach conditions associated with respiratory distress. Subjectively determined observations such as dead fish and audible coughing provide a better indication of the likelihood of respiratory distress than measurements made using scientific instruments. The observations may be sent to a remote central database using handheld communication devices. A beach status evaluation is determined based on stored observations, and may be provided to beachgoers through Internet web pages or by telephone or text-message to enable beachgoers to choose an alternative beach or alternative activity when respiratory distress is likely.

Abstract: One embodiment of the present invention provides systems and techniques to extract assume properties from a constrained random test-bench. During operation, the system can receive a constrained random test-bench for verifying the design-under-test (DUT), wherein the constrained random test-bench includes a statement which assigns a random value to a random variable according to a constraint. Next, the system can modify the constrained random test-bench by replacing the statement with another statement which assigns a free input variable's value to the random variable. The system can also add a statement to the constrained random test-bench that toggles a marker variable to localize the scope of the statement. The system can then generate an assume property which models the constraint on the free input variable. The assume property can then be used by a formal property verification tool to verify the DUT.

Abstract: A method and system for providing repeatable GPS performance testing of a communication device are provided. Navigation data is complied over a drive route. The navigation data is used as an input to a GPS simulator to duplicate in a laboratory setting the GPS signals present at the GPS receiver during a travel along the drive route. Performance data of a baseline unit can be obtained for benchmarking the performance of a communication device being tested. A device under test can also be exposed to simulated GPS signals and to both simulated GPS signals and other radio frequency signals, such as telephone network signals present along the drive route.

Abstract: A system and method to detect acoustic signals from fire sprinkler heads discharging water and to locate such devices in a public building, airport, sports stadium or other structure which can include a system to measure speech intelligibility. Time and frequency domain analysis are carried out to establish the presence of signals characteristic of water discharge from a fire sprinkler.

Abstract: There is described a method for detecting anomalies in a set of signals that normally exhibit analogous behaviour. The method comprises: acquiring a set of signals from at least one measurement source; designating a reference signal Sref from the acquired set of signals; computing a deviation Devi between the reference signal Sref at a reference point in time tref (Sref(tref)) and at least one of the acquired signals Si over time; and generating a deviation alarm trigger when the deviation meets a given deviation criteria.

Abstract: A process for correcting the time stamp of recordings such as photographs, obtained in many locations. An onboard clock records a time stamp for each photograph. GPS tracking data is obtained during movement of the camera. A time correction is sought, to account for an unknown error in the onboard clock, relative to the trusted GPS time data. To this end, an assigned location of each photograph is generated from the location tracking data and from an estimated time correction. Indicators of an appropriate time correction include clustering of the assigned locations, and correlation of the assigned locations to locations of reduced velocity. A GUI can be used to enable user assessment of clustering and/or correlation, and indication of a suitable time correction. Or, algorithmic assessment can be used. The determined time correction can be used to correct each photograph's time stamp.

Abstract: An Edge-Aligned Ratio Counter (EARC) that includes at least one processor coupled to at least one counter circuit is provided for determining a ratio between two clock signals by receiving a first and a second value in response to a first clock signal and generating a control signal under control of the loaded value by counting the pulses of the first clock signal and a second clock signal and captures the count of each clock signal in response to the control signal and determining a ratio between a frequency of the first clock signal and a frequency of the second clock signal using the differences of the captured counts taken at two different occurrences of the control signal.

Abstract: A frequency selective surface (FSS) and associated methods for modeling, analyzing and designing the FSS are disclosed. The FSS includes a pattern of conductive material formed on a substrate to form an array of resonance elements. At least one aspect of the frequency selective surface is determined by defining a frequency range including multiple frequency values, determining a frequency dependent permittivity across the frequency range for the substrate, determining a frequency dependent conductivity across the frequency range for the conductive material, and analyzing the frequency selective surface using a method of moments analysis at each of the multiple frequency values for an incident electromagnetic energy impinging on the frequency selective surface. The frequency dependent permittivity and the frequency dependent conductivity are included in the method of moments analysis.

Abstract: Methods and apparatuses for validating signals to determine sizes and velocities of spherical objects are described. Light is scattered from a spherical object to form an interference fringe pattern. Portions of the interference fringe pattern are received by photodetectors. In response, the photodetectors generate time varying electrical signals. At least one of the time varying signals is partitioned into timing segments. The timing segments are processed to determine one or more timing parameters. A timing parameter consistency between at least two of the timing segments is verified. At least one of the time varying signals is validated based on the timing parameter consistency. The time varying electrical signal is accepted if a timing parameter difference is less or equal to a predetermined timing parameter error threshold. The time varying electrical signal is rejected if the timing parameter difference is larger than the predetermined timing parameter error threshold.

Abstract: A signal generator device for generating at least one periodic signal for use in a data eye scan system. The signal generator comprises a clock input, at least one output and at least one signal generator coupled with the clock input and with the output. The signal generator is at least one token ring with a predetermined number of positions and is operable to propagate at least one token in the ring by moving the token from its current position to a following position dependent on a clock signal from the clock input. The signal generator further comprises a predetermined number of signal value units that each represent a respective predetermined signal value of a predetermined signal waveform and are operable to provide the signal value at an output of the signal generator dependent on a current position of the at least one token in the token ring.

Abstract: The present invention is generally directed to various methods and systems for isolating process equipment using sensor data. In one illustrative embodiment, the method includes providing at least two processing tools wherein the tools produce different process results when performing a target process operation, acquiring support facility data using a plurality of sensors, and analyzing the acquired support facility data to determine a cause for the processing tools producing different process results.

Abstract: A method of calibrating glucose monitor data includes collecting the glucose monitor data over a period of time at predetermined intervals, obtaining reference glucose values from a reference source that temporally correspond with the glucose monitor data obtained at the predetermined intervals, calculating the calibration characteristics using the reference glucose values and corresponding glucose monitor data to regress the obtained glucose monitor data, and calibrating the obtained glucose monitor data using the calibration characteristics. In additional embodiments, calculation of the calibration characteristics includes linear regression and, in particular embodiments, least squares linear regression. Alternatively, calculation of the calibration characteristics includes non-linear regression. Data integrity may be verified and the data may be filtered.

Abstract: It is possible to detect a reception signal at a high speed. A wave detection device includes: a first signal output unit for outputting a first signal s[n] which is a sum of a digital input signal subjected to A/D conversion and an output from a feedback signal output section; a second signal output unit for outputting a second signal s[n?1] which is the first signal s[n] delayed by one sampling timing; and a feedback signal output section for subjecting the second signal s[n?1] to a predetermined calculation. When n=N?1, a frequency region conversion section reads out the first signal s[N?1] and the second signal s[N?2] from registers and subjects them to a predetermined calculation, thereby obtaining the input signal subjected to DFT. Since the wave detection device has a simple configuration, it is possible to rapidly detect the reception signal which is an input signal of the wave detection device.

Abstract: The present invention provides a method, system and computer program product for rapidly determining a resultant in relation to a plurality of predetermined performance characteristics using a method for determining test values in exponential and binary processes which are sequentially and comparatively assessed in relation to one or more maximum performance constraints (MPC) of a set of predetermined performance characteristics.

Abstract: There is provided a measuring apparatus for measuring a signal-to-noise ratio of a discrete waveform which is output from an AD converter in response to an input signal, where the signal-to-noise ratio indicates a ratio of a signal component of the input signal to noise generated by the AD converter. The measuring apparatus includes a spectrum compensating section that receives a spectrum of the discrete waveform output from the AD converter, and compensates the received spectrum in accordance with a non-symmetric sideband between an upper sideband and a lower sideband of the received spectrum, where the upper and lower sidebands are defined with respect to a fundamental frequency of the input signal, and a phase noise waveform calculating section that calculates a phase noise waveform of the discrete waveform based on the spectrum which has been compensated by the spectrum compensating section.

Abstract: An apparatus for analysing the condition of a machine having a rotating shaft, comprising: at least one input for receiving measurement data from a sensor for surveying a measuring point of the machine; said measurement data being dependent on rotation of said shaft; data processing means for processing condition data dependent on said measurement data; said data processing means comprising means for performing a plurality of condition monitoring functions (F1, F2, Fn), wherein said data processing means includes a Field Programmable Gate Array circuit coupled to said at least one input.

Abstract: Provided is a method for monitoring measurement data by way of measurement channels. The measurement channels are processed in a plurality of time series of state values with mutually different time bases. Limit value ranges are ascertained in a learning phase and monitoring-related steps are triggered in a monitoring phase when limit values are exceeded. A good value extent is calculated for a time series with an upper and a lower limit value, with the inclusion of a limit value range which is predetermined in the learning phase and a state base value of the time series, which is determined in the monitoring phase.

Abstract: Systems and methods are provided for upgrading a software artifact having accumulated data flaws. The software artifact may be accessible, for example, by a plurality of software components for backend services. Issues that cause the data flaws and corresponding fixes are tracked and evaluated to determine dependencies, if any, between the fixes. The fixes are applied to the software artifact as individual transactions. If there are no dependencies among a subset of fixes, the fixes in the subset are applied regardless of whether the other fixes in the subset were successfully applied. For subsets having dependencies between fixes, the fixes that depend from a prior unsuccessfully applied fix are discarded. The software artifact is rolled back to remove unsuccessfully applied fixes.

Abstract: A refracture-candidate diagnostic test is an injection of compressible or slightly compressible fluid at pressures in excess of minimum in-situ stress and formation fracture pressure with pressure decline following injection test recorded to detect a fracture retaining residual width from previous stimulation treatments. The diagnostic consists of small volume injections with injection time being a small fraction of time required for compressible or slightly compressible reservoir fluid to exhibit pseudoradial flow. The fracture-injection portion of a test can be considered as occurring instantaneously. Data measurements are transformed into a constant rate equivalent pressure transformation to obtain adjusted pressures or adjusted pseudovariables which are analyzed to identify dual unit-slope before and after closure periods confirming a residual retaining width.

Abstract: A method for measuring a bandwidth of a signal path between a data source and a data recipient involves sending a block of test data from the data source along the signal path to the data recipient, using that test data to obtain a measured bandwidth of the signal path, and transferring information from the data source along the signal path to the data recipient in accordance with the measured bandwidth. The measured bandwidth value can be calculated each time the data recipient accesses a website or the measured bandwidth value can be retained for future use.