Abstract: Systems and methods configured to process motion data associated with a user. The systems and methods are configured to receive motion data from a sensor, calculate motion attributes from the data, and classify the motion data using one or more mathematical models. Further, the systems and methods are configured to identify and quantify, using the one or more mathematical models, the motion data as linear travel motion associated with the user running or walking.

Abstract: A sensing structure for an accelerometer includes a support and a proof mass mounted to the support by flexible legs for in-plane movement in response to an applied acceleration along a sensing direction. The proof mass includes a plurality of moveable electrode fingers extending substantially perpendicular to the sensing direction and spaced apart in the sensing direction. The structure also includes at least one pair of fixed capacitor electrodes comprising first and second sets of fixed electrode fingers extending substantially perpendicular to the sensing direction and spaced apart in the sensing direction; the first set of fixed electrode fingers arranged to interdigitate with the moveable electrode fingers with a first offset in one direction from a median line therebetween, and the second set of fixed electrode fingers arranged to interdigitate with the moveable electrode fingers with a second offset in the opposite direction from a median line therebetween.

Abstract: A diagnostic method executed by a processor included in an information processing device, the information processing device including an acceleration sensor and a plurality of devices and having a function of executing a diagnosis of each of the plurality of devices, the diagnostic method includes storing threshold information that is set regarding each of the plurality of devices and includes a plurality of directions and thresholds of acceleration components each corresponding to a respective one of the plurality of directions; receiving acceleration information from the acceleration sensor; calculating acceleration components each corresponding to the respective one of the plurality of directions by using the acceleration information when shock is detected from the acceleration information; extracting one or more devices having a possibility of a breakdown from the plurality of devices by comparing the acceleration components and the threshold information; and executing a diagnosis regarding the one or mor

Abstract: A MEMS acceleration detection device including a housing having a cavity and a spring mass system assembled into the cavity of the housing. A lid enclosing the spring mass system in the cavity and contacting a top surface of the housing.

Abstract: A method and system for fall detection using machine learning are disclosed. The method comprises detecting at least one signal by a wireless sensor device and calculating a plurality of features from the at least one detected signal. The method includes training a machine learning unit of the wireless sensor device using the features to create a fall classification and a non-fall classification for the fall detection. The system includes a sensor to detect at least one signal, a processor coupled to the sensor, and a memory device coupled to the processor, wherein the memory device includes an application that, when executed by the processor, causes the processor to calculate a plurality of features from the at least one detected signal and to train a machine learning unit of the wireless sensor device using the features to create a fall classification and a non-fall classification for the fall detection.

Abstract: A scanning head of a scanning probe microscope includes a scanning head frame having a first end portion and a second end portion which are oppositely disposed, the first end portion and the second end portion defining a first receiving space and a second receiving space, respectively; a sample table located in the first receiving space; a scanning module located in the second receiving space; and a plurality of fixed electrodes fixed on the second end portion of the scanning head frame. Signal lines of the scanning head of the present invention do not fall off or tear off during operation. In addition, the scanning head allows a laser to be incident on its scanning probe, enabling the scanning probe to be coupled with the laser, so that the range of application is wide.

Abstract: An electric contact used to electrically connecting an IC socket to a PCB, comprises an upper contact, a lower contact and an elastic member between them. The upper contact comprises a first connecting portion to be connected to the IC socket and a first contacting portion with less length than the first connecting portion. The lower contact comprises a second connecting portion and a second contacting portion connecting with the second connecting portion. The second connecting portion includes an expanding portion adjacent to the second contacting portion. The second contacting portion forms a receiving space for the first contacting portion. The first connecting portion also defines a protruding portion projecting along a thickness direction.

Abstract: An adjustable load transmitter for adjusting an alignment between a probe card and a bridge beam of a wafer prober, where the probe card is separated from the bridge beam by a gap. The adjustable load transmitter located in the gap, the adjustable load transmitter comprising two rotatable plates adapted for transmitting a load via a load transmission path between the bridge beam and the wafer prober and each comprising two flat, non-parallel contact faces. The adjustable load transmitter removes an angular misalignment between the bridge beam and the set of plates by rotating each of the rotatable plates about a pre-determined adjustment angle such that two angles of inclination are adjusted to zero. The adjustable load transmitter establishes the load transmission path by closing a clearance between the bridge beam and the contact face.

Abstract: An electronic device comprises: a first semiconductor die; a power transistor integrated in the first semiconductor die, the power transistor comprising a gate, a first terminal, and a second terminal; a sense transistor integrated in the first semiconductor die, the sense transistor comprising a gate coupled to the gate of the power transistor, a first terminal, and a second terminal coupled to the second terminal of the power transistor; and a first resistor integrated in the first semiconductor die, the first resistor comprising a polysilicon section and a metal section coupled to the polysilicon section, the first resistor comprising a first terminal and a second terminal, wherein the first terminal of the first resistor is coupled to the first terminal of the sense transistor.

Abstract: The invention relates to a measuring arrangement having a two-wire field device comprising a control unit, a sensor, and a radio module, a superordinate unit to which the field device is connected via a two-wire line, wherein signals from the field device are transmitted to the superordinate unit at least as a current injected by the field device in a predetermined range to the superordinate unit, wherein an error current below the predetermined range signals an error, and a maintenance current above the predetermined range signals a maintenance mode, and the field device is designed in such a manner that the maintenance current feeds the radio module in the radio operation.

Abstract: A voltage sensor includes a vibrator configured to be supported by a mechanical supporting portion and to be given a floating potential, a drive electrode configured to be disposed adjacent to the vibrator and to resonate the vibrator with applied AC voltage, a driver configured to apply an AC voltage that crosses 0 V to the drive electrode, a fixed electrode configured to be disposed adjacent to the vibrator with a gap formed between the fixed electrode and the vibrator, and a calculator configured to detect a magnitude of a measurement target voltage based on a change of a resonant frequency of the vibrator when the measurement target voltage is applied to the fixed electrode.

Abstract: A system to verify the identity of modules within a stack light is disclosed. A sensor is mounted to a circuit board inserted within a housing of the module, and a target is mounted to or integrally formed in the housing. The sensor detects and generates a signal corresponding to the detected target. Different targets or locations for the target are provided for each housing. The module, a base for the stack light, or a remote controller in communication with the stack light identifies the housing in which the circuit board is mounted based on the feedback signal generated by detecting the target. At power-up, a routine may initiate a verification routine by which each module in the stack light determines the type of housing in which the circuit board for that module is located.

Abstract: A capacitive sensing system includes a controller, a node connected to one side of a capacitance, the controller configured to measure the capacitance by measuring a time for a voltage across the capacitance to reach a predetermined reference voltage, a noise measurement circuit configured to measure electrical noise on the node, and the controller receiving the measurement of noise from the noise measurement circuit.

Abstract: A system for determining the radiation pattern of an antenna array comprising a plurality of antenna elements comprises a signal generator for generating a test signal, a number of probes for measuring a magnitude of the signals emitted by the antenna elements when driven with the test signal in a first surface and in a second surface, wherein the distance of the first surface to the antenna elements is smaller than the distance of the second surface to the antenna elements, and a pattern calculation unit for calculating the radiation pattern of the antenna array based on the magnitudes measured in the first surface and the second surface.

Abstract: A system and method for determining an estimated battery cell state-of-charge and for determining an estimated battery cell resistance and for determining an estimated battery cell available energy is provided. The method includes measuring at least one of a battery cell voltage, a battery cell current, and a battery cell temperature. The method further includes determining an adapted estimated polarization voltage vector. The method further includes estimating the battery cell state-of-charge based on the adapted estimated polarization voltage vector and at least one of the battery cell voltage, the battery cell current, and the battery cell temperature. The method can further include computing the estimated battery cell resistance. The method further stores values corresponding to the estimated battery cell state-of-charge and the estimated battery cell resistance and the estimated battery cell available energy in a memory.

Abstract: A device for detecting a connector mounting failure includes a detection unit and a connection member that interconnects the detection unit and a connector device. The connection member includes a connection connector inserted into and seated in the connector device, and a connection line unit that interconnects the connection connector and the detection unit. The connection line unit also delivers a detection value of the connection connector to the detection unit.

Abstract: The present embodiments are directed to locating electrical faults in an electrical circuit, in particular electrical faults in transmission wires of an electrical circuit. Examples of the present embodiments provide a method and apparatus for opening a switch in the electrical circuit to cause an open circuit or discontinuity at the fault; transmitting a signal to be reflected from the open circuit or discontinuity and receiving the signal reflected from the open circuit or discontinuity to determine the location of the fault. Examples are particularly suitable for high voltage systems, for example over 100V.

Abstract: The present disclosure relates to detection of faults in an electric power system. In one embodiment, a time-domain traveling wave directional subsystem is configured to receive a plurality of current traveling wave and a plurality of voltage traveling wave time-domain representations based on electrical conditions in the electric power delivery system. The plurality of current and voltage traveling wave time-domain representations may be compared to respective minimum thresholds. An integral may be generated based on a product of the plurality of current and voltage traveling wave time-domain representations when the current and voltage traveling wave time-domain representations exceed the minimum thresholds. A sign of the integral may reflect whether the fault is in the forward or reverse direction. A fault detector subsystem configured to declare the fault when the sign reflects that the fault is in the forward direction and the integral exceeds a security margin.

Abstract: A system and method utilize a stand-alone controller for a multiplexed handler test cell in automated and robotic semiconductor test equipment for indexless tandem semiconductor testing. The stand-alone controller is configured such that functions relating to both the handler drivers and the data post-processor of the multiplexed handler tested cell are included within the stand-alone controller. The system and method also include provisions for using a virtual multiplexed handler test cell in a preliminary stage prior to actual implementation of the actual multiplexed handler test cell. This configuration permits the stand-alone controller to control the functions of the multiplexed handlers and to coordinate their activity with the tester.

Abstract: A computer-implemented method includes, by one or more processors in electronic communication with a tunneling magnetoresistive sensor, wherein the tunneling magnetoresistive sensor is a component of a magnetic storage drive configured to read magnetic data from a magnetic storage medium, detecting a short across the tunneling magnetoresistive sensor, measuring a change in resistance of the tunneling magnetoresistive sensor, measuring a change in voltage amplitude for the tunneling magnetoresistive sensor, and dividing said change in voltage amplitude by said change in resistance to yield a ratio. The computer-implemented method further includes, responsive to the ratio being greater than a predetermined ratio threshold, determining that the short is caused by a magnetic shunt. A corresponding computer program product and computer system are also disclosed.

Abstract: A process corner detection circuit based on a self-timing ring oscillator comprises a reset circuit (1), the self-timing oscillation ring (2), and a counting module (3). The self-timing ring oscillator (2) consists of m two-input Muller C-elements and inverters, and a two-input AND gate, m being a positive integer greater than or equal to 3. The circuit can be used for detecting a process corner of a fabricated integrated circuit chip, and reflecting the process corner of the chip according to the number of oscillations of the self-timing ring oscillator (2). The number of oscillations of the self-timing ring oscillator (2) in different process corners is acquired by Hspice simulation before the chip tape-out, and the process corner of the chip after the chip tape-out can be determined according to the actually measured number of oscillations.

Abstract: The present invention provides a chip-to-chip signal transmission system. Signal transmission is performed between a transmitter of a first chip and a receiver of a second chip through a transmission-metal-pad and a reception-metal-pad. When receiving a driving-testing signal, the transmitter transmits a transmission-testing-coupling signal through the transmission-metal-pad according to the driving-testing signal. A receiving-testing circuit on the first chip receives the transmission-testing-coupling signal through the transmission-testing-metal-pad, and outputs a transmission-testing signal according to the transmission-testing-coupling signal. When receiving the driving-testing signal, a driving-testing circuit on the second chip transmits a receiving-testing-coupling signal through a reception-testing-metal-pad according to the driving-testing signal.

Abstract: A sequential circuit includes a data input terminal, a data path, and a redundant feedback loop. The data input terminal receives input data. The data path is connected to the data input terminal and transmits the input data to a data output terminal based on a first clock signal and a second clock signal. The redundant feedback loop is connected to the first data path and stores first data based on at least one of the first or second clock signals when the first data is equal to second data. The first data corresponds to the input data. The second clock signal is a delayed signal of the first clock signal. The second data is delayed data of the first data.

Abstract: Systems and methods for classifying power line events are disclosed. Classifying power line events may include receiving measured data corresponding to a signal measured on a power line, such as proximate a substation bus or along the power line, determining from the measured data that the power line event has occurred, extracting at least one event feature from the measured data, and determining at least partially from the at least one event feature at least one probable classification for the power line event. The systems may include an Intelligent Electronic Device (IED) connected to the power line and a processor linked to the IED.

Abstract: A method and system for iteratively determining state of charge (SOC) of a battery cell (“selected cell”) using a controller. For each of the iterations, the controller determines determine a predicted SOC of the selected cell; determines a predicted error covariance of the predicted SOC; and updates the predicted SOC and the predicted error covariance for use in subsequent iterations of the method. The updated SOC is treated as the SOC of the selected cell for that iteration of the method. Cell voltage used to determine the updated SOC may be low-pass filtered prior to its use. When the selected cell is one of multiple cells in a battery pack, the selected cell may be selected to have the lowest SEV of the cells in the pack. The error covariance may also vary directly with pack current magnitude to model inaccuracies that generally directly vary with current flow.

Abstract: Aspects of the present disclosure describe a single battery degradation model and methods that considers both CYCLING and CALENDAR aging and useful in both energy management and battery management systems that may employ any of a variety of known battery technologies.

Abstract: A device for estimating a state-of-health (SOH) of a battery module controls a battery current to have a predetermined current value for a testing period such that a battery voltage decreases during the testing period, corrects a voltage variation value of the battery module during the testing period according to a temperature value of the battery module, and estimates the SOH of the battery module according to the corrected voltage variation value, a current variation value of the battery module during the testing period, and a rated capacity of the battery module.

Abstract: An apparatus for estimating a state of a battery including a data receiver configured to receive module data associated with a battery module included in a battery pack from the battery module, and a processor configured to acquire cell data corresponding to a battery cell included in the battery module from the module data, and determine a module state of the battery module based on the cell data.

Abstract: A device for detecting and characterising electron spins in a sample includes an electromagnetic microresonator, having a resonant frequency cor in the microwave range and a quality factor Q and into which the sample is inserted; a device for creating a magnetic field B0 in the sample for bringing a spin transition frequency cos into resonance with the resonant frequency cor, such that cos=?B0, where ? is a gyromagnetic factor of the spins; a spin detection device receiving signals from the electromagnetic microresonator associated with the sample and including at least one low-noise amplifier operating at a temperature of between 1 and 10 K and a series of amplifiers and a demodulator operating at ambient temperature.

Abstract: An HF coil assembly for generating independent alternating magnetic fields in an examination volume of a magnetic resonance apparatus is presented, the HF coil assembly comprising a first coil pair of saddle coils and a second coil pair of saddle coils, each saddle coil having longitudinal conductor elements and curved conductor elements arranged along a common lateral surface of a circular cylinder having a cylinder axis. Each coil pair comprises curved conductor elements and longitudinal conductor elements which are interconnected at a high frequency. The saddle coils also have diagonal conductor elements and/or bridge elements that connect the longitudinal and curved conductor elements. The coil pairs are opposite to each other relative to the cylinder axis.

Abstract: In a method for manufacturing a flat insulation layer for use in a gradient coil, a thermoplastic insulating material in the form of a plate, strip or foil is three-dimensionally deformed in a hot shaping step to form specified local elevations on at least one side, which are spaced apart from one another.

Abstract: Described here are systems and methods for designing and implementing spatially selective, multidimensional adiabatic radio frequency (“RF”) pulses for use in magnetic resonance imaging (“MRI”). Spatially selective inversion can be achieved adiabatically in both two-dimensional (“2D”) and three-dimensional (“3D”) regions-of-interest. The multidimensional adiabatic pulses are generally designed using sub-pulses that are adiabatically driven using a parent adiabatic pulse.

Abstract: Various embodiments include apparatus and methods to conduct measurements on a structure using a nuclear magnetic resonance tool. The nuclear magnetic resonance tool can be operated to make nuclear magnetic resonance measurements that generate transverse 5 relaxation time echo train sequences ending with a recovery pulse. Additional apparatus, systems, and methods are disclosed.

Abstract: In a method and magnetic resonance apparatus for modification of a magnetic resonance actuation sequence, a parameter of the magnetic resonance actuation sequence is specified that, is categorized in one of a number of predefined categories for this parameter to which a boundary condition is linked. The boundary condition is taken into account and observed during the determination of a property of the pulses to be activated.

Abstract: A method for setting a MRI sequence, a magnetic resonance device, and a computer program product are provided. The method includes providing, by a limitation unit, at least one limitation; providing, by a parameter provision unit, a plurality of parameters of the sequence, wherein at least one parameter of the plurality of parameters is assigned to a default parameter value; selecting, by a selection unit, a parameter of the plurality of parameters; determining, by a simulation unit, at least one sequential pattern based on at least one default parameter value of the default parameter values; determining, by an analysis unit, a permissible range of parameter values of the selected parameter based on at least one sequential pattern and the at least one limitation; and establishing, by an establishment unit, a new parameter value of the selected parameter within the permissible range of the parameter values.

Abstract: Systems and methods for accelerating magnetic resonance fingerprinting (“MRF”) acquisitions are described. The method includes controlling the MRI system to acquire magnetic resonance fingerprinting (MRF) data from the subject by performing a gradient-echo pulse sequence. The pulse sequence includes maintaining residual transverse magnetization through a delay period performed between successive cycles of the pulse sequence. The delay period is selected to allow spins of different tissue types within the subject to evolve differently as a function of tissue parameters within the different tissue types during the delay period.

Abstract: A method for calibrating a radio frequency test instrument is described wherein a first frequency response is measured using a radio frequency and coarse intermediate frequency grid. A first matrix is created comprising data obtained from said first frequency response measuring. A second frequency response is measured using a radio frequency and fine intermediate frequency grid. A second matrix is created comprising data obtained from said second frequency response measuring. Said first matrix and said second matrix are processed and combined in order to determine a frequency response for a radio frequency desired, said first matrix and said second matrix comprising data obtained from measurements performed with different radio frequency and intermediate frequency grids. Further, a radio frequency test instrument is described.

Abstract: Systems and methods for determining an angle of arrival (AoA) of a signal received from an emitters at a pair of antennas spaced apart by more than one half wavelength of the received signal. Features of the signal are determined, including a phase difference between signal components detected at the antennas, and a time difference of arrival (TDOA) having a known measurement error. A set of TDOA possibilities bounded by the known TDOA measurement error and a set of AoA estimates using phase interferometry (PI) within the range are calculated. The TDOA set is iteratively reduced to determine a precise AoA estimate for the emitter.

Abstract: Disclosed are examples of a method, system and asset tag that enables general, coarse and fine estimates of a location of the asset tag. The asset tag receives a signal transmitted from radio frequency (RF)-enabled nodes within a space. Each respective received signal includes a unique node identifier of the respective RF node that transmitted the respective received radio signal. Each RF node has a physical node location in the space that is associated with the unique node identifier. The tag measures the received signal strength of each respective received signal that is associated with the node identifier of the RF node that transmitted the respective received signal. The strongest measured received signal strengths are selected, and a tuple containing the node identifiers for the selected strongest signal strengths is forwarded for estimating a location of the asset tag by a computing device.

Abstract: In an embodiment of the present invention, a GraphSLAM-like algorithm for signal strength SLAM is presented. This algorithm as an embodiment of the present invention shares many of the benefits of Gaussian processes yet is viable for a broader range of environments since it makes no signature uniqueness assumptions. It is also more tractable to larger map sizes, requiring O(N2) operations per iteration. In the present disclosure, an algorithm according to an embodiment of the present invention is compared to a laser-SLAM ground truth, showing that is produces excellent results in practice.

Abstract: A method is described of using the mobile device so as to control the drain of power from the power source of the mobile device, the mobile device having at least two location determination techniques having respective power drain characteristics, the method includes selecting the location determination technique having a lower power drain characteristic the greater the determined distance of the mobile device from a predetermined location or area, and selecting the location determination technique having the greater power drain characteristic the smaller the determined distance of the mobile device from a predetermined location or area. The method thus uses the least accurate technique when furthest away and the most accurate technique when closer to a predetermined location or area.

Abstract: Aspects described herein provide a method for generating a directional context for measured environmental condition values. A Target device may measure at least one environmental parameter using at least one Environmental Sensor in the Target. The Target may communicate wirelessly with a Looker device to transmit the measured environmental data. The Looker device may determine a relative location of the Target versus a location of the Looker device and associate the environmental data with the relative location. The Looker device may generate a directional indication according to the received environmental data, where the directional indication associates the Target's relative location with the received environmental data.

Abstract: Described are systems and techniques for determining a position of one or more people within a physical environment, such as an aisle in a fulfillment center. In some instances, the aisle is instrumented with a plurality of radio frequency receivers (RFRXs), active infrared transmitter-receiver pairs (AIRTRPs), and passive infrared (PIR) proximity sensors. A radio frequency-emitting tag carried by the user is detected by the RFRX to determine an identity and approximate position along the length of the aisle. Data indicating obscuration of beams from one or more of the AIRTRPs provides further refinement as to position along the length of the aisle. Data from the PIR provides disambiguation as to which side of the aisle the user is on. Accordingly, the user may be identified and precisely positioned in the aisle.

Abstract: A method and system for oversampling a waveform with variable oversampling factor is suggested. The method and for dynamic selection of the oversampling factor are based on a modified equivalent time sampling approach. Multiple waveforms are transmitted, which are separated by a variable delay. The method permits that a receiver selects a different oversampling factor for the received waveform. As a result the method and system provide for oversampling a waveform with a variable, dynamically selectable oversampling factor.

Abstract: A method and system of neural network training for mobile device indoor navigation and positioning.

Abstract: A radar system having side lobe blanking capability is disclosed. The system can include a single channel antenna and receiver system, the side lobe blanking system being time multiplexed, but requiring no dedicated guard channel data collection period such that the scan rate of the system is not degraded.

Abstract: Various embodiments include methods and systems having a frequency-modulated continuous wave radar operable to compensate a return signal for nonlinearity in the associated radar signal that is transmitted. The radar signal can be mixed with a delayed version of the radar signal such that the mixed signal can be used to generate an estimate of the nonlinearity. The estimate can be used to compensate the return signal from an object that reflects the associated transmitted radar signal. Additional apparatus, systems, and methods can be implemented in a variety of applications.

Abstract: A method and a device for ascertaining a misalignment of at least one detection unit fastened on a vehicle with respect to the intended sensor main beam direction. The device includes at least one detection unit which emits signals and receives partial signals which have been reflected on objects, and ascertains the distance and the azimuth angle of the reflecting objects, and further includes an evaluation unit, to which the ascertained positions of the at least one detection unit are forwarded, and the determination of a misalignment takes place in the evaluation unit by comparing the stored alignment of the sensor main beam direction and the ascertained angle of the object extension with respect to the sensor main beam direction, this taking place under the assumption that the vehicle is moving on average, in parallel to the object extension, for the period during which the misalignment is ascertained.

Abstract: A detection method for a given mission comprises: a phase of analyzing the environment, wherein phase elements of influence on the sea clutter perceived by the radar are sought and stored in memory; a phase of updating the path to be followed by the carrier depending on the requirements of the mission and the elements of influence issued from the result of the analyzing phase, the path to be followed decreasing the power of the clutter received by the radar when the antenna is pointing towards a search zone liable to contain a target; the phases being repeated throughout the mission.

Abstract: In a distance measuring device, a drive controller generates an emission timing signal and an exposure timing signal in accordance with a measurement condition. A light source irradiates light in response to the emission timing signal. A solid-state image sensor has a group of pixels arranged in a matrix pattern and divided into a plurality of regions on a line-by-line basis, and performs an exposure process on a selected one of the regions in response to the exposure timing signal. An imaging signal processor obtains distance information by performing an arithmetic operation on a signal output from the solid-state image sensor. The drive controller generates mutually different measurement conditions to the plurality of the regions of the solid-state image sensor.