Abstract: A duty cycle tuner measures high and low periods of a signal, calculates an actual duty cycle, generates duty control signals based on the actual duty cycle and a desired duty cycle, and adjusts the duty cycle responsive to the duty control signals. The high and low periods are measured using high-speed counters to provide a high count for the high period and a low count for the low period. The actual duty cycle value is then computed from the high and low counts, and compared to the desired duty cycle value to generate increment and decrement signals which may be positive or zero, to increase, decrease or maintain the actual duty cycle. In this manner, even if the high and low counts are subject to variations due to process, temperature or power supply voltage, their ratio is independent of such variations, so the tuner is immune to those effects.

Abstract: To provide a technique for generating, at a high speed, a smaller-sized set that satisfies an intended property such as, for example, being pair-wise, and includes many test cases that match a set of existing test cases given as an input, candidates to be used from a set of existing input test cases are determined in the following manner: for some parameters, values to be held by test case candidates are determined; test cases having the determined values, among those included in the set of input test cases, are selected as the candidates. A test case having the highest score among one or more test case candidates generated with the method of the related art and one or more test case candidates selected from the set of input test cases is added to a set of output test cases.

Abstract: Techniques are described for determining particle displacement or particle velocity data from particle acceleration measurements. In an embodiment, an apparatus comprises an interface configured to received particle acceleration data, one or more processors, and one or more storage media. The one or more storage media store instructions for determining one or more of particle velocity data or particle displacement data, based upon the particle acceleration data, by processing the particle acceleration data using a filter that at least approximates a Wiener filter and that uses one or more damping factors selected to provide stability in the presence of noise in the particle acceleration data.

Abstract: Systems and methods of measuring current in a power over Ethernet (PoE) system are provided. The PoE system includes an integrated circuit component having a controller, an internal transistor, a replica transistor, and an external transistor. Current in the system can be indirectly measured by enabling and disabling the transistors in known ways and then measuring the current through the replica transistor. The actual current in the system can be calculated based on the measured currents, thereby allowing for a PoE system that is capable of measuring current without a resistor in series with the external transistor.

Abstract: One aspect of the invention provides a flow sensing apparatus including: a fluid channel that allows a fluid to flow in a first direction; a first temperature sensor arranged at a first position along the fluid channel; a second temperature sensor arranged at a second position along the fluid channel and separated from the first sensor by a predetermined distance along the fluid channel; a heating element arranged between the first and second thermoelectric sensors, the heating element being substantially equally spaced from the first and second thermoelectric sensors; a heating element temperature sensor for sensing a temperature of the heating element; and a control device configured to maintain the heating element at a substantially uniform temperature.

Abstract: A methodology performs downhole fluid analysis at multiple measurement stations within a wellbore traversing a reservoir to determine gradients of compositional components and other fluid properties. A model is used to predict concentrations of a plurality of high molecular weight solute part class-types at varying reservoir locations. Such predictions are compared against downhole measurements to identify the best matching solute part class-type. If the best-matching class type corresponds to at least one predetermined asphaltene component, phase stability of asphaltene in the reservoir fluid at a given depth is evaluated using equilibrium criteria involving an oil rich phase and an asphaltene rich phase of respective components of the reservoir fluid at the given depth. The result of the evaluation of asphaltene rich phase stability is used for reservoir analysis.

Abstract: Method and apparatus for the non-destructive inspection of a test object with a large material thickness by means of ultrasound. The apparatus includes an ultrasonic test probe with an ultrasonic transducer divided into a plurality of individually activatable transducer segments wherein the transducer segments are concentric circles or rings, or sections thereof. A first group j (j=1, 2, 3, . . . ) of transducer segments is selected in such a way that a parallel activation of these transducer segments results in a circular active surface Fj of the ultrasonic transducer (22). An ultrasound inspection of the test object is undertaken with the first group j (j=1, 2, 3, . . . ) of transducer segments, wherein they are activated in parallel.

Abstract: A temperature sensor in a semiconductor device includes a temperature detection circuit for outputting a voltage according to the chip temperature, a reference voltage generating circuit for generating a plurality of reference voltages, and a plurality of voltage comparators for comparing each reference voltage with an output voltage of the temperature detection circuit and thereby generating a chip temperature detection signal configured with multiple bits. Further, the temperature sensor includes a control circuit for controlling the reference voltages generated by the reference voltage generating circuit based on the chip temperature detection signal and thereby changing correspondence between the chip temperature detection signal and the chip temperature to shift a chip temperature detection range.

Abstract: A voltage-programmed display system allows measurement of effects on pixels in a panel that includes both active pixels and reference pixels coupled to a supply line and a programming line. The reference pixels are controlled so that they are not subject to substantial changes due to aging and operating conditions over time. A readout circuit is coupled to the active pixels and the reference pixels for reading at least one of current, voltage or charge from the pixels when they are supplied with known input signals. The readout circuit is subject to changes due to aging and operating conditions over time, but the readout values from the reference pixels are used to adjust the readout values from the active pixels to compensate for the unwanted effects.

Abstract: A method for calculating the charge to balance for cells in a multi-cell battery. The method determines a depletion-goal state of charge (SOC) for the battery cells. The method determines a corresponding set of depletion-goal charges and usable charges for the set of cells, where the depletion-goal charge is calculated using the corresponding charge capacity and depletion-goal SOC and the usable charge is calculated using the corresponding actual charge and depletion-goal charge. The method determines a charge-bias using the set of usable charges. The method determines for the set of cells a corresponding set of charges to balance from the set of usable charges and the charge-bias.

Abstract: In certain example embodiments, moisture sensors, defoggers, etc., and/or related methods, are provided. More particularly, certain example embodiments relate to moisture sensors and/or defoggers that may be used in various applications such as, for example, refrigerator/freezer merchandisers, vehicle windows, building windows, etc. When condensation or moisture is detected, an appropriate action may be taken (e.g., actuating windshield wipers, turning on a defroster, triggering the heating of a merchandiser door or window, etc.). Bayesian approaches optionally may be implemented in certain example embodiments in an attempt to improve moisture detection accuracy. For instance, models of various types of disturbances may be developed and, based on live data and a priori information known about the model, a probability of the model being accurate is calculated. If a threshold value is met, the model may be considered a match and, optionally, a corresponding appropriate action may be taken.

Abstract: A method for the determination of an inflow profile and bottom-hole area parameters (perforation zone parameters, bottom-hole area pollution parameters) in a multipay well comprises changing a production rate and measuring a temperature of a fluid flowing into the well as a function of time for each pay zone. Then a derivative of this temperature with respect to a logarithm of a time passed after the well production rate has been changed for each pay zone is determined. An inflow profile and other parameters are calculated based on a value of said derivative when it becomes constant and on a time after which the value of the derivative becomes constant.

Abstract: A method and apparatus for detecting a jump of a moving sportsman and separating the jump from other sportsman motion is described. Accelerometer data generated by a sportsman's motion is received in a computing device. The computing device is used to apply fuzzy logic membership functions to a plurality of parameters associated with the accelerometer data to detect a pattern associated with jumps. A subset of the data is identified as representing a jump based upon the detection of the pattern. The determination is used in the computing device to transform data, whereby jumps are separated from other sportsman motion.

Abstract: A power strip includes: a first power line; a second power line between which and the first power line a power supply voltage is applied; a jack portion; a current meter configured to measure a current being supplied to an external electrical device from the jack portion; a first photocoupler including a first light emitting diode connected between the first power line and the second power line and configured to output a first output signal whose level is changed when the power supply voltage exceeds a first threshold; and a computing unit configured to calculate a power value by using instantaneous values of the current measured by the current meter and instantaneous values of the power supply voltage estimated from the length of a period when the level of the first output signal is changed.

Abstract: Disclosed is an exhaust sampling system including a plurality of exhaust sampling system zones. The zones are, at least, a sampling conduit, a fill circuit, and a read circuit. A controller is programmed to predict a minimum dilution ratio to avoid condensation in one of the exhaust sampling system zones. The controller is further programmed to run a test procedure in which a sample of exhaust is diluted with a make-up gas at a selected minimum dilution ratio that is greater than or equal to the predicted minimum dilution ratio. Further disclosed are methods of predicting whether condensation occurs during a test procedure.

Abstract: Systems and methods for automatically evaluating the useful life of an engine oil based on data corresponding to a plurality of preselected key oil properties. The evaluation includes determining, in connection with each of the pre-selected key oil properties, a first current measured oil property value, a first reference oil property value, a first deterioration-limit value, and a first weighting factor. The evaluation also includes determining a single index value, indicating a state of deterioration of the engine oil, in a calculation using each of the values and factors.

Abstract: The method is based on a determination of the orientation of the sensor to the surface moving with respect to the sensor and then acquiring data where the lateral velocity is small and the forward velocity is large. Then, the orientation of the sensor with respect to the direction of the forward velocity is determined and the velocity data subsequently measured are corrected using the measured orientation of the sensor with respect to the reference surface and the forward velocity direction.

Abstract: Method for quantitatively assessing connectivity for well pairs at varying frequencies. A time series of measurements (12) is chosen for each of the two wells such that the particular measurements will be sensitive to subsurface connectivity if it exists (11). The two time series may then be pre-processed by resampling to time intervals commensurate with response time between the two wells (13), detrending the measurements (14), and detecting and eliminating spiking noises (15). Then the time series are transformed to the frequency domain where coherence and phase between the two series are compared for varying frequencies (16). This comparison is used to make a determination of connectivity.

Abstract: Systems and methods for identifying unbuildable part pairs in product data management (PDM) systems. A method includes receiving a product structure having a plurality of nodes with variant conditions. The method includes building, by the client PDM system, a variant condition forest (VCF) corresponding to the product structure and selecting a pair of nodes in the product structure. The method includes determining, using the VCF, whether the variant conditions of each of the selected nodes are satisfiable both separately and at the same time, and if not, marking the selected pair of nodes as unbuildable. The method includes adding the unbuildable pair of nodes to an unbuildable pairs list. The method includes performing a clearance analysis process on the product structure, without processing unbuildable pairs on the unbuildable pairs list, and storing the results of the clearance analysis process.

Abstract: A method of establishing a tip location of a terminal includes establishing a virtual tip line by measuring a height of a board, on which a component having a terminal and a body is mounted, and comparing the measured measurement height with a predetermined reference height, establishing a central line with respect to a width direction of the terminal along a longitudinal direction of the terminal, and establishing a tip location of the terminal by using the measurement height along the central line from an intersection point of the virtual tip line and the central line. Thus, a tip location of a terminal may be more correctly acquired.