Abstract: The present invention is directed to systems and methods of disaggregating and detecting energy usage associated with electric vehicle charging from a whole-house consumption signal. In general, methods of the present invention may include: identifying by an electronic processor potential interval candidates of electric vehicle charging, based at least in part upon long and decreasing patterns; determining by the electronic processor intervals associated with the charging of an electric vehicle, based at least in part on evaluating each potential interval candidate; determining by the electronic processor an initial point of charging for each interval associated with the charging of an electric vehicle; and accounting by the electronic processor for feedback of any incorrectly detected signals.

Abstract: A microcontroller-based system for measuring the impedance of a device under test (DUT), responsive to a square wave stimulus, includes parallel stimulus signal paths, selectable by a switch, that can correspond to different stimulus frequency ranges. At least one of the paths includes an off-chip PLL and integer divider circuit to modify the frequency of the stimulus. A discrete Fourier transform executed by a processor is used to determine the impedance of the DUT at the stimulus frequency. Multiple frequencies can be analyzed at the same time by using a summation circuit and/or by analyzing odd harmonics of the stimulus frequency.

Abstract: The invention relates to an electronic measurement device and a method for operating the electronic measurement device. The electronic measurement device comprises a signal generating unit which is configured to generate a signal that is applied to an input node of a device under test. The electronic measurement device comprises a controlling unit which is configured to control the signal generating unit in that the generated signal is at least adjustable in its signal frequency. Furthermore, the electronic measurement device comprises at least a receiving unit, wherein the receiving unit retrieves a signal from an output node of the device under test in time domain.

Abstract: A semiconductor test device includes an actuator holding a radiation source and adjusting a distance between the radiation source and a sample, and a controller controlling an operation of the actuator and calculating a soft error rate (SER) of the sample based on the distance between the radiation source and the sample. The controller calculates a first distance between the radiation source and the sample at which the SER of the sample becomes zero, and calculates a metal-to-dielectric ratio of the sample based on the first distance.

Abstract: A high-powered, high-voltage test device for generating a test voltage, wherein the test voltage is an alternating voltage having an amplitude of at least 100 kV at a power of greater than 1 kW, wherein the device has at least two voltage amplifier branches, of which a first voltage amplifier branch contributes to generating the positive voltage half-cycles of the test voltage and a second voltage amplifier branch contributes to generating the negative voltage half-cycles of the test voltage. The high-voltage test device furthermore has a measurement circuit for measuring the test voltage to be applied to a measurement object and the test current consequently caused in the measurement object and is characterized in that each voltage amplifier branch is installed in a separate assembly having integrated active air cooling.

Abstract: A ground fault detection system for locating a ground fault in a direct current (DC) power transfer system is provided. The system includes a ground fault detection component and a current sensor. The ground fault detection component includes a first switch and a first resistive element electrically coupled to each other in a series configuration. The ground fault detection component also includes a second switch and a second resistive element electrically coupled to each other in a series configuration. Furthermore, the current sensor is operatively coupled to a load and is configured to measure a fault current at the load upon switching at least one of the first switch or the second switch to a conducting state.

Abstract: A method of processing current transformer data, performed by an electronic trip unit, includes obtaining first current data based on a first current signal from a first current transformer, second current data based on a second current signal from a second current transformer, and third current data based on a third current signal from a third current transformer. Using the current data, it is determined whether one of the current transformers is connected to the electronic trip unit with an improper polarity. Upon determining that one of the current transformers is connected to the electronic trip unit with an improper polarity, the obtained current data corresponding to the current transformer that is connected with improper polarity is automatically inverted. A ground fault calculation is performed using the automatically inverted current data.

Abstract: The invention relates to a method of locating in a dispersive medium (5) a source (7) of pulses (s1, s2) by at least one pair of sensors (1, 2), the method comprising the following steps: at the level of each sensor (1, 2), detecting a pulse (s1, s2) originating from the source (7); for each of said pulses, constructing a phase diagram on the basis of N vectors of which the co-ordinates correspond to the amplitude of the pulse (s1, s2) at successive sampling instants ti; and for each pair of sensors, calculating the ratio between the distances L1 and L2 of each sensor from the source through the formula (I) where (II) and (III) are the norms of the vectors (IV) and (V) of the phase diagrams corresponding to the pulses detected by the sensors (1, 2).

Abstract: A semiconductor device inspection system includes a laser beam source, a tester, an optical sensor, a first spectrum analyzer for measuring first phase information serving as phase information of the detection signal, a reference signal generating unit for generating a reference signal of a predetermined frequency, a second spectrum analyzer for measuring second phase information serving as phase information of a reference signal, and an analysis unit for deriving phase information of the detection signal at the predetermined frequency, wherein the first spectrum analyzer measures the first phase information with respect to the reference frequency, the second spectrum analyzer measures the second phase information with respect to the reference frequency, and the frequency of the base signal of the first spectrum analyzer and the phase thereof are synchronized with the frequency of the base signal of the second spectrum analyzer and the phase thereof.

Abstract: A method for making a semiconductor device may include forming active circuitry on a substrate including differential transistor pairs, and forming threshold voltage test circuitry on the substrate. The threshold voltage test circuitry may include a pair of differential test transistors replicating the differential transistor pairs within the active circuitry, with each test transistor having a respective input and output, and at least one gain stage configured to amplify a difference between the outputs of the differential test transistors for measuring a threshold voltage thereof. The differential transistor pairs and the pair of differential test transistors each includes spaced apart source and drain regions, a channel region extending between the source and drain regions, and a gate overlying the channel region. Moreover, each of the channel regions may include a superlattice.

Abstract: Methods and apparatus for identifying a process corner are provided. Provided is an exemplary method for identifying a process corner of an integrated circuit (IC). The IC has a first asymmetrical ring oscillator (ARO1) including pull-up transistors that have a low threshold voltage (LVT) and pull-down transistors that have a regular threshold voltage (RVT), and has a second asymmetrical ring oscillator (ARO2) including pull-up transistors that have an RVT and pull-down transistors having an LVT. The exemplary method includes applying an ultra-low power supply voltage to the ARO1 and the ARO2 that causes the integrated circuit to operate near a verge of malfunction, measuring an output frequency of the ARO1, measuring an output frequency of the ARO2, calculating a calculated ratio of the output frequency of the ARO1 and the output frequency of the ARO2, and comparing the calculated ratio to a fiduciary ratio to identify the process corner.

Abstract: Failure types that caused defective items to fail testing are identified, the defective items are grouped by the failure types to produce failure-type groups, and the defective items are analyzed to identify defect types that caused the failures. Failure-type limited yield within each of the failure-type groups, and failure-type group-specific defect ratio based on proportions of the defect types within each of the failure-type groups are determined. Additionally, each failure-type group-specific defect ratio is weighted using the failure-type limited yield to produce a weighted failure-type group-specific defect limited yield. For each of the defect types, the weighted failure-type group-specific defect limited yield from each of the failure-type groups is combined to produce the failure-type influenced defect-type total limited yield. Matrix processing is used for the weighting and combination processes. The defect types are ranked based on the failure-type influenced defect-type total limited yield.

Abstract: A sensor for on-chip monitoring the effects of operating conditions on a circuit, Integrated Circuit (IC) chips including the sensors, and a method of monitoring operating condition effects on-chip circuits, e.g., for the occurrence of electromigration. The sensor includes a multi-fingered driver associated with a monitored circuit, sensitive to known circuit parameter sensitivities. Sense and control logic circuit selectively driving the multi-fingered driver, and selectively monitoring for an expected multi-fingered driver response.

Abstract: Disclosed are exemplary embodiments of transient scanning data visualization methods and systems. Also disclosed are exemplary embodiments of embedded transient scanning systems and methods.

Abstract: An integrated circuit and a method of self-testing the integrated circuit are provided. The method comprises: generating a reference voltage at an output of a reference circuit; initiating a test of the reference circuit during a test mode; determining whether the test of the reference circuit passes; and comparing, if the test of the reference circuit passes, a first voltage with the reference voltage. The disclosed test method provides for more complete testing of the integrated circuit.

Abstract: Method to extract timing diagrams from synchronized single- or two-photon pulsed LADA by spatially positioning the incident laser beam on circuit feature of interest, temporally scanning the arrival time of the laser pulse with respect to the tester clock or the loop length trigger signal, then recording the magnitude and sign of the resulting fail rate signature per laser pulse arrival time. A Single-Photon Laser-Assisted Device Alteration apparatus applies picosecond laser pulses of wavelength having photon energy equal to or greater than the silicon band-gap. A Two-Photon Laser-Assisted Device Alteration apparatus applies femtosecond laser pulses of wavelength having photon energy equal to or greater than half the silicon band-gap at the area of interest. The laser pulses are synchronized with test vectors so that pass/fail ratios can be altered using either the single-photon or the two-photon absorption effect. A sequence of synthetic images with error data illustrates timing sensitive locations.

Abstract: Disclosed are embodiments of a method that provides for pre-production run development of a fail signature database, which stores fail signatures for systematic defects and corresponding root causes. The fail signatures in the database is subsequently accessed and used for a variety of purposes. For example, the fail signatures are evaluated and, based on the results of the evaluation, actions are taken to prevent specific systematic defects from occurring during production runs and/or to allow for early detection of specific systematic defects during production runs. In some embodiments, following production runs, new fail signatures from failing production chips are developed and compared against the fail signatures in the fail signature database. In some embodiments, when a signature match indicates that a particular production chip has a same systematic defect with a same root cause as a particular prototype chip in-line advanced process control (APC) is performed.

Abstract: An apparatus for testing an electrical component, having a simulation unit for producing a simulation signal, a plurality of test units, and at least one electrical connecting device, whereby the simulation unit and the plurality of test units are connected or connectable to each other in an electrically conductive fashion via the at least one connecting device, and the at least one connecting device has at least one electrical switch device, which is situated to make or break an electrical connection between the plurality of test units.

Abstract: The present invention relates to a system for analysis of partial discharge defects of a gas insulated switchgear capable of allowing a user to precisely analyze a defect of a gas insulated switchgear due to a partial discharge, by providing both partial discharge signal information on a partial discharge signal sensed by a detecting sensor, and detection signal information on a detection signal sensed by one or more neighboring sensors adjacent to the detecting sensor, to a monitor.

Abstract: The present invention relates to a method and to a battery management system which are suitable for determining an open-circuit voltage profile (3) of a vehicle battery, dependent on a state of charge, in a vehicle. In this context, the following occur: complete discharging (S1) of the vehicle battery by vehicle-internal loads of the vehicle, sensing (S2) of a first sensed, state-of-charge-dependent voltage profile (1) during the discharging (S1) of the vehicle battery, complete charging (S3) of the vehicle battery by a charging device, sensing (S4) of a second sensed state-of-charge-dependent voltage profile (2) during the charging (S3) of the vehicle battery, and determination (S5) of the state-of-charge-dependent open-circuit voltage profile (3) by means of a weighted interpolation of the first sensed voltage profile (1) and of the second sensed voltage profile (2).

Abstract: A method of predicting battery test results includes using a battery test computer to predict a battery test result for a battery undergoing testing. The battery test computer comprises a tangible, non-transitory computer-readable medium storing a battery test management system implemented as one or more sets of instructions. The battery test management system includes a predictive module configured to predict the battery test result using less than all data required for the battery test to be complete, a validation module configured to validate the prediction, and a training module configured to re-train the predictive module based on results generated by the validation module. The battery test computer also includes processing circuitry configured to execute the one or more sets of instructions, and outputting, via a user interface, the prediction of the result and a confidence level associated with the prediction.

Abstract: To provide a battery pack capable of performing a highly accurate prediction of a remaining power of a battery while being low in cost. A battery remaining power predicting device includes a voltage detection portion which measures a voltage and a temperature of a battery, a computing portion which predicts and calculates a remaining power of the battery, and a controller which controls the computing portion, and has a battery remaining power predicting flow for regressively calculating the battery remaining power, and a secular change estimating flow for estimating a secular change in battery characteristics, using a case where a battery current is in a constant current state.

Abstract: The state of charge of a rechargeable battery is determined by calculating the DC impedance of the battery. The impedance is calculated by: performing a two different constant current discharges of the battery at a first and second C-rates, respectively; measuring the voltage and current during the interval of each constant current discharge and calculating the amount of charge extracted from the battery up to a point where the battery voltage drops to a threshold value; calculating the state of charge of the battery; and calculating the DC impedance of the battery as a function of the difference between the battery voltages and discharge currents for the two different discharges.

Abstract: An inspecting apparatus is for a noncontact power transfer system that transfers electric power from a transmitting unit to a receiving device in a noncontact manner. The inspecting apparatus includes a coupling capacitance varying unit configured to vary at least one of a first coupling capacitance formed between a transmitting-side passive electrode and a receiving-side passive electrode and a second coupling capacitance formed between a transmitting-side active electrode and a receiving-side active electrode when the receiving device is placed on the transmitting unit, and a control unit configured to monitor an alternating-current voltage generated between the receiving-side passive electrode and the receiving-side active electrode of the receiving device or a direct-current voltage obtained through conversion by a rectifying circuit.

Abstract: An apparatus for detecting a defect of an electric power system according to one embodiment of the present disclosure includes a first state signal output unit for outputting a first state signal corresponding to a magnetic force generated at a periphery of a line, a second state signal output unit for outputting a second state signal based on a magnitude of a line current and an increase ratio thereof, and a determination unit for determining whether the electric power system is defective or not based on the first state signal and the second state signal.

Abstract: The present disclosure provides a system and method enabling a self-burn-in test for a power supply device (PSD) of a server system using a multi-phase scheme. The PSD comprises a power-width modulation (PWM) controller, and a plurality of power stages. Each of the plurality of power stages comprises a driver, a high-side MOSFET, and a low-side MOSFET. In one aspect of the present disclosure, upon receiving a test mode command from a controller of the server system, the PWM controller can send a PWM signal to switch a specific power stage to the On state, and send at least another PWM signal that switches other power stage(s) of the plurality of power stages to the Tri-state. During a subsequent self-burn-in test of the specific power stage, low-side MOSFET(s) of the other power stage(s) can function as a load for the specific power stage.

Abstract: A parameter identification circuit for a digital power converter having an inductor and a capacitor, can include: an inductor parameter circuit that receives an inductor current of the inductor, a capacitor voltage of the capacitor, a duty cycle in a start-up stage, and a predetermined inductor current, where the inductor parameter circuit obtains an inductor parameter according to an integrated value of the capacitor voltage, an integrated value of the duty cycle in the start-up stage, and the predetermined inductor current, when the inductor current rises to a level of the predetermined inductor current; and a capacitor parameter circuit that receives the inductor current, the capacitor voltage, and a predetermined capacitor voltage, where the capacitor parameter circuit obtains a capacitor parameter according to an integrated value of the inductor current and the predetermined capacitor voltage when the capacitor voltage rises to a level of the predetermined capacitor voltage.

Abstract: A magnetic field measurement device capable of accurate measurement of a magnetic field even after a sensitivity of an MI sensor varies is provided. A magnetic field measurement device (1) includes an MI sensor (2) and a sensitivity calculation means (3). The MI sensor (2) includes a magneto-sensitive body (20), a detection coil (21) and a magnetic field generation coil (22) that generates a magnetic field upon energization. The sensitivity calculation means (3) varies a current flowing in the magnetic field generation coil (22) in a state where an outside-sensor magnetic field HO acting on the magneto-sensitive body (20) from outside the MI sensor (2) is constant. Consequently, the magnetic field acting on the magneto-sensitive body (20) is varied to calculate a sensitivity a by dividing a variation in an output voltage of the detection coil (21) by a variation in the magnetic field acting on the magneto-sensitive body (20).

Abstract: Provided is a sensor circuit that has little possibility of being accidentally put into a test mode in response to an external input of noise or the like. The sensor circuit includes a clock generation circuit configured to output a control signal that is used to control intermittent operation to a physical quantity detection unit, and to output a sampling signal in a sleep period, a potential detection circuit configured to detect a potential at an output terminal and to output a detection signal, and a clock control circuit configured to output a mode switching signal that is a command to switch the clock generation circuit to a test mode, when a given signal pattern is detected in data that is obtained by sampling the detection signal based on the sampling signal.

Abstract: A magnetic sensor of a sensor unit includes magnetic sensing elements, an encapsulating portion, a primary terminal group and a secondary terminal group. Another magnetic sensor includes magnetic sensing elements, an encapsulating portion, a primary terminal group and a secondary terminal group. The magnetic sensors are mounted on a common surface of a circuit board. The adjacent two magnetic sensors, which are oriented in a common direction, are arranged such that the secondary terminal group of one of the adjacent two magnetic sensors is opposed to the primary terminal group of the other one of the adjacent two magnetic sensors. A primary output terminal and a secondary output terminal are placed asymmetrically to each other with respect to a center line of the encapsulating portion.

Abstract: Systems and methods for producing an image of the electrical properties of an object using magnetic resonance imaging (“MRI”) are provided. The electrical properties are determined based on estimated gradient values of the electrical properties of the object. For instance, electrical property maps are reconstructed using a spatial integration on gradient values that are estimated from the magnitude and relative phase values derived from measurements of multiple transmit and receive B1fields. Specific absorption rate (“SAR”) maps can also be produced based on the estimated electrical properties.

Abstract: A protective cover for an open bore MRI is disclosed. The cover comprises a semi-permeable barrier, MRI shielding, and physical shielding; is at least partially transparent; and it comprises fluid connection means for providing a fluid connection between an inner open bore of said open bore MRI and an environment external to said open bore MRI. A camera operable in a MRI system is disclosed. The camera can be positioned adjacent to an RF shield (e.g., the protective cover) and external to a bore of the MRI system. The camera can generate an image of at least a portion of a patient during operation of the MRI system.

Abstract: A method and apparatus for receiving (RX) radio-frequency (RF) signals suitable for MRI and/or MRS from MRI “coil loops” (antennae) that are overlapped and/or concentric, and each of which has a preamplifier and frequency-tuning circuitry and an impedance-matching circuitry, but wherein the loops optionally sized differently and/or located at different elevations (distances from the patient's tissue) in order to extract signal from otherwise cross-coupled coil loops and to improve signal-to-noise ratio (SNR) in images made from the received signal.

Abstract: A method for operating a magnetic resonance tomograph having at least one receiving antenna, at least one converter device for analog/digital conversion and a programmable computing device is provided. The method includes generating, with the converter device, digital measured values by digitizing the analog reception signal from the receiving antenna and/or at least one analog signal derived from the reception signal. A time-coding device adds an item of time information that describes the recording time of the measured values to each of the digital measured values or to groups of measured values including a plurality of the digital measured values in order to generate a time-coded data stream. The programmable computing device processes the time-coded data stream further.

Abstract: A device for alternating examination of a measurement object (170) by means of MPI and MRI with two magnetic field-generating elements is presented. The device is characterized by a main magnet coil system with two coaxial partial coil systems (100a1, 100a2; 100b2, 100b1) arranged mirror-symmetrically relative to a central plane running perpendicularly to the z-axis through the first volume under investigation (162). The volumes under investigation are superimposed. A polarity reversal device (190) reverses the polarity of the current through a partial coil system and the main magnet coil system generates a homogeneous magnetic field of at least sixth order in the first volume under investigation when the partial coil systems have identical polarity, and a spatially strongly varying magnetic field profile in the second volume under investigation when the polarities are opposite. Repositioning of the measurement object is thereby simplified or can even be eliminated.

Abstract: In a method for operating a medical imaging apparatus having subsystems, a control protocol assigned to a scan sequence to be performed is provided to a control computer that determines sequence control data for the control protocol, which define different functional subsequences of the scan sequence. Different effective volumes are assigned to each functional subsequence, and current ambient conditions of the apparatus are determined for the sequence control data and associated effective volumes, for a series of states of physiological processes that occur during the scan sequence. Control signals for the scan sequence are determined from the sequence control data, the effective volumes and the current ambient conditions per observed state, that optimize the functional subsequences of the scan sequence locally.

Abstract: An MRI method includes performing a first image acquisition module of a pulse sequence to acquire a first MR data from slices disposed at different locations in a region of interest (ROI) of an object; performing a second image acquisition module of the pulse sequence, to acquire a second MR data from the slices disposed at the different locations of the ROI, with a T2 preparation time different than that of the first image acquisition module; and generating a T2 map based on the acquired first MR data and the acquired second MR data.

Abstract: An object (10) is placed in an examination volume of a MR device (1) and imaged using a multi-echo imaging technique which is robust with respect to motion. The imaging includes subjecting the object (10) to a number of shots of a multi-echo imaging sequence to generate a train of echo signals by each shot and acquiring the echo signals. Each echo signal represents a k-space profile, wherein k-space (20) is divided into a central k-space part (21) and one or more peripheral k-space parts (22, 23). The central k-space part (21) is sampled by a single shot of the multi-echo imaging sequence, and the peripheral k-space parts (22, 23) are sampled by one or more further shots (25, 28) of the multi-echo sequence; and an MR image is reconstructed from the k-space profiles.

Abstract: In a method and apparatus for the correction of image data dynamically acquired with a magnetic resonance imaging method, a reliable B0 field map is recorded as a basic reference field map. Image data (VB) with distorted coordinates are also acquired over a predefined recording time. In addition, a set of distorted, dynamically obtained B0 field maps is acquired during the recording time. Incorrect B0 field maps are identified by comparison of the dynamically obtained B0 field maps with the basic reference field map, and the set of distorted, dynamically obtained B0 field maps is corrected accordingly. The acquired image data with distorted coordinates are corrected with the use of the corrected set of distorted, dynamically obtained B0 field maps.

Abstract: The present disclosure provides a wireless network-based positioning method and positioning apparatus. The positioning method includes: obtaining time information used for determining a current location of a to-be-positioned node, where the time information records times of arrival of a first sounding signal; determining time differences of arrival of the first sounding signal at the at least three anchor nodes according to recorded historical information and the time information; and determining the current location of the to-be-positioned node according to locations of the at least three anchor nodes and the time differences of arrival of the first sounding signal at the at least three anchor nodes. By means of the present disclosure, time differences of arrival of a sounding signal at different anchor nodes can be accurately determined, thereby determining an accurate location of a to-be-positioned node and avoiding synchronization between the anchor nodes.

Abstract: Disclosed is an example for determining miss distance and bullet speed of a burst of bullets. In one example, shock wave (SW) vectors emanating from bullets are estimated using a first sensor. Further, firing point (FP) vectors and closest-point-of-approach (CPA) vectors emanating from the bullets are estimated using a second sensor. The first sensor and the second sensor are disposed on a platform. The SW vectors, the FP vectors and the CPA vectors are determined as emanating from the burst of bullets. The miss distance and bullet speed of the burst of bullets are determined using the FP vectors, the SW vectors, and the CPA vectors that are emanating from the burst of bullets.

Abstract: Systems and methods for beacon device fleet management are provided. One example system includes a plurality of beacon devices, a plurality of mobile computing devices, a fleet management system, and a fleet owner computing devices. One example method includes receiving, by the fleet management system, a device status request from the fleet owner computing device. The fleet management system determines one or more operational statuses of beacon devices owned by the fleet owner and transmits data indicative of the one or more operational statuses to the fleet owner computing device. The operational statuses can include a current detection status (e.g., online or offline), a location status, a power source status, and/or other operational parameters.

Abstract: A system for locating RFID tags in an area includes a platform and an RFID reader head associated with the platform. At least one support extends between the platform and an anchor position within an area. Separate support adjustment devices are associated with each support, with each support adjustment device being operable to adjust the length of the associated support between the platform and the anchor position associated with the support. So adjusting the length of the support varies the location of the RFID reader head in the area, thereby allowing an RFID reader associated with the RFID reader head to monitor a larger area than would otherwise be possible if the RFID reader were to remain in a fixed location. The RFID reader head itself may be movable with respect to the platform for finer adjustment of the position of the RFID reader.

Abstract: Object tracking anti-jitter filtering systems and methods. A plurality of raw location points for a tracking tag attached to a tracked object is received. The raw location points are stored within a raw location points buffer. Raw location points within an averaging window are averaged to generate an averaged location point. The averaged location point is stored within an averaged location points buffer for use within the object tracking system.

Abstract: Various embodiments disclosed herein include a method for determining the position of a computing device. The method may include obtaining, by the computing device, an image of a subset of luminaries from a plurality of luminaires located in an indoor environment, in which each subset grouping of luminaires in the plurality of luminaires is uniquely identifiable. The computing device may then compare the subset of luminaires to a database storing each uniquely identifiable subset grouping of luminaires in the plurality of luminaires, in which the database includes position information for each luminaire in the plurality of luminaires, and determine the position of the computing device based on the comparison of the subset of luminaries to the database.

Abstract: The ultra-violet radar display screen is a low latency display screen that is adapted for use with radar systems. The ultra-violet radar display screen uses a radiation source that is used to fluorescence a fluorescent screen. The track of the generated radiation source is controlled using a plurality of rotating structures that send radiation to a target location on the fluorescent screen that is provided by the radar system the ultra-violet radar display screen is adapted to work with. The ultra-violet radar display screen improves on the existing response times of existing radar display screens because of the response time of the radiation source combined with the rotational speed and flexibility provided by each of the plurality of rotating structures. The ultra-violet radar display screen comprises a fluorescent screen, a plurality of rotating structures, a radiation source, and a synchronous resolution device.

Abstract: A method for determining a frequency modulation includes generating a symbol stream that is filtered, with multiple samples per period. Sample values represent samples of the filtered symbols at instants separated by intervals of a fraction of a time period between successive symbols. Samples of I and Q waveforms are calculated from frequency modulating a signal with the sequence of symbols. For each possible set of symbol values on which a waveform depends, an average waveform is produced over all symbol values outside the group; and on which the waveform is not to depend, all waveforms are superimposed within +/?half a period of the center symbol of each group having the same set of values and averaging the superimposed I, Q samples to produce for each group an averaged set of samples and an average waveform. Final I, Q values are stored for subsequent frequency modulation.

Abstract: The present disclosure relates to a concept for calibrating an IQ modulator.

Abstract: The present application describes a method including transmitting at least two radar signals by a radar unit of a vehicle, where a first signal is transmitted from a first location and a second signal is transmitted from a second location. The method also includes receiving a respective reflection signal associated with each of the transmitted signals. Additionally, the method includes determining, by a processor, at least one stationary object that caused a reflection. Further, the method includes based on the determined stationary object, determining, by the processor, an offset for the radar unit. The method yet further includes operating the radar unit based on the determined offset. Furthermore, the method includes controlling an autonomous vehicle based on the radar unit being operated with the determined offset.

Abstract: Disclosed herein are optical integration technologies, designs, systems and methods directed toward Optical Coherence Tomography (OCT) and other interferometric optical sensor, ranging, and imaging systems wherein such systems, methods and structures employ tunable optical sources, coherent detection and other structures on a single or multichip monolithic integration. In contrast to contemporary, prior-art OCT systems and structures that employ simple, miniature optical bench technology using small optical components positioned on a substrate, systems and methods according to the present disclosure employ one or more photonic integrated circuits (PICs), use swept-source techniques, and employ a widely tunable optical source(s). In another embodiment the system uses an optical photonic phased array.