Abstract: A method and apparatus for calibration of a robot on a platform and a robot, in relation to an object using a measuring unit mounted on the robot including placing CAD models so that the robot reaches the object, manipulating the CAD models to move the measuring unit to a pose in relation to the platform allowing measurement of a feature on the object, storing the pose, and generating a CAD model of the feature. The real robot is moved to the pose, the real platform is moved where measurements of the feature can be made, 3D measurements of the feature are performed and based thereon generating a second CAD model, performing a best fit between the CAD models, and calculating a 6 degrees of freedom pose difference between the CAD models, and instructing the mobile platform to move to compensate for the pose difference.

Abstract: The present invention provides a method of calculating a surface shape of a target surface, including the steps of defining, as a measurement target region, each of a plurality of regions on the target surface in which adjacent regions overlap each other, and obtaining data that give the heights at the plurality of positions in each of the plurality of regions, and removing, for each of the plurality of regions, an average data from the data that are obtained in the step of obtaining the data and give the heights at the plurality of positions in each of the plurality of regions, thereby generating correction data for each of the plurality of regions.

Abstract: Based on a local coordinate velocity vector calculated by a local coordinate velocity vector calculation unit and an attitude angle calculated by an attitude angle calculation unit, a change portion of a detected value in the past that is similar to a change in a detected value of attitude and velocity during movement of the user is extracted as a correlation calculation unit provided in each of a reference velocity vector calculation unit and a reference attitude angle calculation unit carries out predetermined correlation calculation. Then, a reference value of the detected value used when correcting the detected value is calculated and generated by the reference velocity vector calculation unit and the reference attitude angle calculation unit, using the result of the extraction.

Abstract: In a device in which the rotation angle of the rotor is detected with a resolver, the rotation angle of the rotor with less error can be obtained while reducing burden of the operator. The measured angle value acquisition unit (210) acquires the measured-rotation angle value of a motor shaft. The error calculation unit (220) calculates the error included in each of measured-rotation angle values. The frequency component acquisition unit (230) determines the phase and the amplitude of a frequency component of the error based on the errors. Thus, by using the error frequency component acquisition device (121), the phase and amplitude of the frequency component of the error included in the measured-rotation angle value can be automatically calculated and the correction with respect to the measure-rotation angle value can be performed using the acquired phase and amplitude. Therefore, the rotation angle of the rotor with less error can be obtained, while reducing the burden of the operator.

Abstract: A system for determining an error in a sensed position of a machine includes a position sensing system, a dead reckoning system, and a controller. The controller is configured to determine a difference between a sensed position and a calculated position determined by dead reckoning. The difference is compared to an error threshold defining a maximum acceptable distance between the sensed position of the machine and the calculated position of the machine and an error signal generated if the difference exceeds the error threshold. A pair of offset dead reckoning processes may be used.

Abstract: A position detector having a plurality of sensor units is used. Each of the sensor units is configured to determine positions. The sensor units are selectively used for outputting positions of a moving object. Positional outputs are generated by combining outputs from a plurality of the sensor units in a segment where the plurality of sensor units output positions together, for allowing the positional outputs to change continuously from a start to an end of the segment.

Abstract: A magnetic field generator includes a substrate, a main generator coil, at least one field sensor, at least one shim coil, a driver circuit and a correction circuit. The main generator coil, the field sensor, and the shim coil are all disposed on the substrate. The driver circuit is coupled to drive the main generator coil with a driving current at a selected frequency. The correction circuit is coupled to receive a signal at the selected frequency from the at least one field sensor and, in response to deviations in the signal from a predefined baseline, to drive the at least one shim coil with a driving current having an amplitude configured to return the signal to the baseline.

Abstract: Track information generating devices, methods, and programs acquire a self-contained navigation track of a vehicle indicated by time-series pieces of self-contained navigation information, and acquire a GPS track of the vehicle indicated by time-series pieces of GPS information. The devices, methods, and programs compare the self-contained navigation track with the GPS track to correct the self-contained navigation information so as to reduce a difference between the self-contained navigation track and the GPS track.

Abstract: An apparatus includes a measurement unit and a calculation unit, wherein the calculation unit expresses a measurement error of each measurement as a polynomial including a term that has a coefficient whose value is dependent on setting of the measurement area and a term that has a coefficient whose value is not dependent on the setting of the measurement area, obtains a matrix equation with respect to the coefficients of the polynomial by applying a least-squares method to each of the measurement data items for the overlapping region, assigns data about the terms of the polynomial and each of the measurement data items for the overlapping region to the matrix equation, calculates the coefficients of the polynomial from a singular value decomposition of the matrix equation to which the data has been assigned, and corrects each of the measurement data items for the measurement areas by using the coefficients.

Abstract: A system and method of integrated data registration (IDR) is presented. A method receives a first position data of a fixed or moving object from a first source that is remote from the object. A second position data of the object is then received from a second source that is different than the first source and that is determined independently from the first position data. Correction estimates are determined based, at least in part, on the second position data. The first position data is then corrected with the correction estimates.

Abstract: An installation error estimating device has a predicted pattern acquirer which obtains a predicted positioning distribution pattern, which is obtained by computing a characteristic pattern of a predicted positioning distribution obtained by predicting a logical positioning distribution, at each observation point where a wireless tag is installed for positioning; and an observation data inputter to which positioning results obtained from the wireless tags by a tag reader are input as observation data. A dispersion pattern analyzer computes a characteristic pattern of a measured positioning distribution, which is obtained by statistical analysis of the applicable positioning result, as a measured positioning distribution pattern at each observation point based on the observation. An installation error estimator computes the installation error for the tag reader using the predicted positioning distribution patterns obtained and the measured positioning distribution patterns computed.

Abstract: A system for a machine having an implement and operating on a slope is provided. The system includes an implement position sensor, inclination sensor and an inclination module. The implement position sensor is configured to generate a signal indicative of a position of the implement relative to a frame of the machine. The inclination sensor, mounted on the implement, is configured to generate a signal indicative of an inclination of the implement relative to the frame of the machine. The inclination module is configured to receive the signals. The inclination module is also configured to correlate the position of the implement and the inclination of the implement with a predefined dataset to determine a bias factor associated with the implement. Further, the inclination module is configured to determine an inclination angle of the slope based on the determined bias factor.

Abstract: A technique for estimating the closest point of approach (CPA) of an object includes: tracking a range rate of the object based on Doppler measurements of the object; computing a first CPA estimate based on the tracked range rate; separately tracking a position of the object based on position measurements of the object; computing a second CPA estimate based on the tracked position; and computing a fused CPA estimate based on the first and second CPA estimates.

Abstract: An angle detection apparatus includes a grating disk supported by a rotation axis and three or more detectors arrayed proximate to a front surface of the grating disk at equal distances in a circumferential direction of the grating disk. A rotation angle of the grating disk rotated by a reference angle from a predetermined initial position is detected by each of the detectors. An angle error at each of the detectors is measured from a difference between the rotation angle and the reference angle. A tangential vector is acquired by rotating by 90° a directional vector of each of the detectors relative to the rotation center. An eccentricity vector is calculated whose inner product with the tangential vector is the angle error.

Abstract: A reference measurement object having known properties is used for the purpose of calibrating a coordinate measuring machine. A plurality of reference measured values are picked up on the reference measurement object. Calibration data are determined using the reference measured values and using the known properties of the reference measurement object. The calibration data comprises a first number of polynomial coefficients that are selected to correct nonlinear measuring errors using at least one polynomial transformation. The first number of polynomial coefficients is reduced in an iterative method to a lesser second number, with a plurality of pairs of polynomial coefficients being formed and with a polynomial coefficient of a pair being eliminated in each case when a statistical dependence between the polynomial coefficients of the pair is greater than a defined threshold value.

Abstract: Provided is a measuring apparatus that measures a position or a displacement of a target object by calculating a phase difference between a reference signal and a measuring signal. The measuring apparatus includes a demodulation unit configured to demodulate the measuring signal by the first frequency to thereby generate a demodulated signal including the component of the second frequency, a cyclic error component, and a harmonic component occurred due to demodulation; a decimation filter configured to remove the harmonic component from the demodulated signal to thereby output a signal including the component of the second frequency and the cyclic error component; and a measuring signal correcting unit configured to detect and remove the cyclic error component included in the output signal from the decimation filter.

Abstract: Methods and systems are for controlling movement of at least one propulsion unit on a marine vessel. The method comprises plotting a first plurality of points representing a first surface of a first propulsion unit and plotting a second plurality of points representing a second surface. The method further comprises limiting movement of at least the first propulsion unit such that the first surface does not come within a predetermined distance of the second surface during said movement.

Abstract: In order to determine a virtual sensor tool center point sensor TCP of a light section sensor, the invention provides that: the sensor TCP is placed in sufficient concordance with a point on a line on a surface a so-called feature of a reference part with a known location; a normal to the surface of the reference part is determined; the Z direction of the sensor is brought in concordance with the normal of the surface of the reference part, and; a defined alignment of the sensor with the line of the feature is determined.

Abstract: A computer-implemented augmented reality method includes obtaining an image acquired by a computing device running an augmented reality application, identifying image characterizing data in the obtained image, the data identifying characteristic points in the image, comparing the image characterizing data with image characterizing data for a plurality of geo-coded images stored by a computer server system, identifying locations of items in the obtained image using the comparison, and providing, for display on the computing device at the identified locations, data for textual or graphical annotations that correspond to each of the items in the obtained image, and formatted to be displayed with the obtained image or a subsequently acquired image.

Abstract: A motion analysis apparatus includes: a threshold value determining section that determines whether the amount of inertia in a first period is within a threshold value range; a bias value setting section that sets, if it is determined that the amount of inertia is within the threshold value range, a bias value included in the amount of inertia on the basis of a first average value that is an average value of the amount of inertia detected in the first period; and an analysis information calculating section that analyzes a motion of a measurement object using correction data from which the bias value is removed.

Abstract: A bias value associated with a sensor, e.g., a time-varying, non-zero value which is output from a sensor when it is motionless, is estimated using a ZRO-tracking filter which is a combination of a moving-average filter and a Kalman filter having at least one constraint enforced against at least one operating parameter of the Kalman filter. It achieves faster convergence on an estimated bias value and produces less estimate error after convergence. A resultant bias estimate may then be used to compensate the biased output of the sensor in, e.g., a 3D pointing device.

Abstract: Track information generating devices, methods, and programs acquire a self-contained navigation track of a vehicle indicated by time-series pieces of self-contained navigation information, acquire a matching track of the vehicle indicated by time-series pieces of information determined through a map matching process is determined as a road the vehicle is traveling, and acquire a degree of reliability of the matching track. The devices, methods, and programs acquire a GPS track that is a track of the vehicle indicated by time-series pieces of GPS information, acquire a degree of reliability of the GPS track, and set the one of the GPS track and the matching track having a higher degree of reliability as a correction target track to correct the self-contained navigation information so as to reduce a difference between the self-contained navigation track and the correction target track.

Abstract: An information processing apparatus that acquires estimated altitude data corresponding to a position based on detection information detected by a sensor at or near the position, and corrects altitude data associated with the position based on the estimated altitude data.

Abstract: A method for detecting a rotation and a direction of a rotation of a rotor, on which at least one damping element is positioned, wherein two sensors are arranged. The sensors are damped depending on a position of the damping element. After a standardization has been performed, the measurements are taken by observing consecutive rotational angle positions and then standardization rules are applied to the measured decay times of the sensors. Then a vector, which is entered into a coordinate system, is formed from the values. The present vector angle is determined and compared to the value of a suitable prior vector angle. From the result of the comparison, it is determined whether the rotor has performed a rotation and whether the rotation was forward or backward. By repeating the measurements in the rhythm of the scanning frequency, the rotational motions of the rotor can be detected with high accuracy.

Abstract: Systems and methods for thermal gradient compensation for ring laser gyroscopes are provided. In one embodiment, a method for producing bias compensated angular rate measurements from a ring laser gyroscope comprises: sampling an angle measurement output from a laser block sensor to obtain an angular rate measurement; obtaining an laser block temperature measurement (Tblock) for the laser block sensor; obtaining a temperature gradient measurement (Tdiff) for at least one gradient line across a portion of the laser block sensor; calculating a rate bias error by applying parameters produced from the temperature measurement (Tblock) and the temperature gradient measurement (Tdiff) to a thermal gradient compensation model, wherein the thermal gradient compensation model includes at least one coefficient corresponding to the temperature gradient measurement (Tdiff); and calculating a difference between the angle rate measurement and the rate bias error to produce a bias compensated angular rate measurement.

Abstract: A bridge circuit includes a plurality of half-bridges formed of sensor elements, which change impedance in accordance with a rotation angle of a detection target. A control circuit acquires output signals of the half-bridges and calculates a phase correction value for correcting a phase deviation. A memory circuit stores the phase correction value. The control circuit corrects a pre-correction rotation angle by the phase correction value. Since the pre-correction rotation angle is corrected by the phase correction value, a rotation angle of the detection target is detected with high accuracy even if the sensor elements are assembled with some positional deviations.

Abstract: An improved method and apparatus for automatically aligning probe pins to the test or bond pads of semiconductor devices under changing conditions. In at least one embodiment, a dynamic model is used to predict an impact of changing conditions to wafer probing process. This reduces the need for frequent measurements and calibrations during probing and testing, thereby increasing the number of dice that can be probed and tested in a given period of time and increasing the accuracy of probing at the same time. Embodiments of the present invention also make it possible to adjust positions of probe pins and pads in response to the changing conditions while they are in contact with each other.

Abstract: A method of calculating the position of a moving body includes: detecting a movement direction of the moving body; calculating a velocity vector of the moving body using a detection result of an acceleration sensor installed in the moving body; correcting the velocity vector using the movement direction; and calculating the position of the moving body using the corrected velocity vector.

Abstract: A lithographic apparatus includes a stage to hold an object, the stage being moveable relative to a reference structure in a motion range; a magnet structure to provide a spatially varying magnetic field in at least a part of the motion range, the magnet structure being moveable relative to the reference structure and the stage; a first position measurement system to provide a first measurement signal corresponding to a position of the stage and/or the object in a measurement direction relative to the reference structure; a second position measurement system to provide a second measurement signal corresponding to a position of the stage relative to the magnet structure; and a data processor to correct the first measurement signal with a value dependent on the second measurement signal to provide a corrected first measurement signal representative of the position of the stage and/or the object relative to the reference structure in the measurement direction.

Abstract: An automatic calibration method for a motor vehicle camshaft sensor, the vehicle having at least one camshaft, a toothed encoded target (or magnetic encoder) associated with this camshaft, and a magnetic field sensor placed near the target to detect magnetic field variations caused by the passage of the teeth of the target near the sensor, the sensor delivering signals corrected by a predetermined detection threshold K, the method including: continuously measuring the value of the magnetic field during at least one revolution of the target, determining the maximum amplitude Amax of the field measured during this revolution, determining the minimum amplitude Amin of the field measured during this revolution, finding the ratio of the amplitudes A min A max and determining an auto-adaptive correction coefficient K? to be applied to the signal received from the magnetic sensor, with allowance for the geometrical imperfections of the target, according to the following formula: K ? = A min A

Abstract: A method and tools for virtually aligning object detection sensors on a vehicle without having to physically adjust the sensors. A sensor misalignment condition is detected during normal driving of a host vehicle by comparing different sensor readings to each other. At a vehicle service facility, the host vehicle is placed in an alignment target fixture, and alignment of all object detection sensors is compared to ground truth to determine alignment calibration parameters. Alignment calibration can be further refined by driving the host vehicle in a controlled environment following a leading vehicle. Final alignment calibration parameters are authorized and stored in system memory, and applications which use object detection data henceforth adjust the sensor readings according to the calibration parameters.

Abstract: A dynamically self-adjusting magnetometer is disclosed. In one embodiment, a first sample module periodically generates an electronic signal related to at least one magnetic field characteristic of a monitored environment. A second sample module periodically generates an electronic signal related to at least one magnetic field characteristic of a monitored environment. A summing module sums the absolute value of the electronic signal from the first sample module and the electronic signal from the second sample module. A delta comparator module receives the electronic signals from each of the first sample module, the second sample module and the summing module and compares each of the electronic signals with a previously received set of electronic signals to establish a change, wherein an output is generated if the change is greater than or equal to a threshold.

Abstract: A gaze tracking device is calibrated to a display unit by presenting graphical guide objects on an active area thereof, which designate distinctive features reflecting how the device may be positioned n a first side of a frame of the display unit. User commands move the objects on the display's active area in a first direction parallel to the first side of the frame. A position value designating an actual position for the gaze tracking device on the first side of the frame is assigned based on a current position of the graphical guide objects on the active area. An offset value is calculated based on the assigned position value and a known measure of the active area. The offset value represents a distance in the first direction between a well-defined point of the gaze tracking device and a well-defined point of the first side.

Abstract: A location measurement system including a GPS receiver for attachment to a person and for determining earth location of the person; a display for attachment to the person; memory for storing map data; a processor configured to process earth location and the map data to instruct display the person's current location with a map on the display.

Abstract: A CPU of a game apparatus sequentially obtains, from a gravity center position detection device, gravity center position data indicative of the gravity center position of a user, and detects a variation range of the gravity center position of the user during a predetermined period to the current time, based on previously obtained gravity center position data. In addition, the CPU executes a predetermined information process based on a relative position of a gravity center position, indicated by a latest gravity center position data, with respect to the variation range detected thus.

Abstract: A system for simultaneously determining strain and temperature characteristics of an object comprising: (i) at least one optical fiber having at least two Brillouin peaks; (ii) at least one connector securing the optical fiber to the object to be monitored; (iii) a laser positioned to provide laser light to said at least one optical fiber; (iv) a device measuring frequencies of said at least two Brillouin peaks, and determining frequency shifts of said at least two Brillouin peaks for said at least one optical fiber along the length of fiber; and (v) a system calculating strain and temperature characteristics along said fiber, based on the coefficients of strain and temperature as well as the measured Brillouin frequency shifts for said optical fiber along the length of said optical fiber.

Abstract: A processing apparatus including one or more processors and memory obtains one or more sensor measurements generated by one or more monitoring sensors of one or more devices, including one or more monitoring sensor measurements from a respective monitoring sensor of a respective device and obtains one or more system signals including a respective system signal corresponding to current operation of the respective device. The processing apparatus determines device context information for the respective device based on the one or more sensor measurements and the one or more system signals and adjusts operation of the device in accordance with the device context information.

Abstract: A controller for use with a nondestructive inspection system communicates with the nondestructive inspection system and with a robot for moving an inspection probe of the nondestructive inspection system relative to an object under inspection. The controller is configured to periodically generate estimated position information of the probe moving relative to the object under inspection and communicate the estimated position information to the nondestructive inspection system as the nondestructive inspection system collects inspection data from the probe. The controller receives actual position information from the robot, the actual position information indicating an actual position of the probe, and corrects the estimated position information based on the actual position information.

Abstract: Systems and methods for calibrating multiple electronic devices are described herein. Such methods may include obtaining, by a processor, data from a plurality of reference electronic devices, analyzing, by a processor, the data and calibrating, by the processor, the electronic device based on the analyzed data obtained from the plurality of reference electronic devices.

Abstract: A method and a video game system that maintain the readings of the accelerometer sensor of the remote controller used in conjunction with the video game system consistent over different controllers and different styles of play. The video game system looks at a predetermined time period, when the largest difference in the acceleration vectors for each frame is within a small limit, indicating that the player is holding the controller relatively idle. Then, the video game system averages the acceleration vectors over this time period, and the inverse of the magnitude of this average is used as a normalization constant.

Abstract: Measuring devices each include a rotating body arranged between a wheel and a wheel hub with rotation centers aligned with each other, and an optical detector fixed to a body frame. The rotating body is formed of a disk portion attached between the wheel and a mounting surface of the wheel hub, and a cylindrical portion extending from the disk portion to the body frame and encompassing an outer circumferential surface of the wheel hub. In a circumferential surface of the cylindrical portion, there are provided elongate holes as light-transmitting portions that transmit light therethrough. The optical detector includes a light-emitting element serving as a light-emitting portion and a light-receiving element serving as a light-receiving portion, which are fixed to the body frame by a mounting bracket.

Abstract: The present invention provides an electron beam writing apparatus and an image placement error correcting method each capable of calculating a high-accuracy correction amount relative to an image placement error in consideration of a difference in required unit area of height distribution data between the shape of a back surface of an EUV mask and the shape of a surface of a pin chuck. Of back surface shape data of the EUV mask necessary to perform an image placement error correction of each pattern, the back surface shape data of a position brought into contact with each pin of the pin chuck is extracted. The image placement error is calculated only from the extracted back surface shape data.

Abstract: This invention proposed a new algorithm. By multiply the proposed weight coefficients of this invention, CSP and CSS can be computed without computing for the mean(s) of the data. After the proposed weight coefficients of this invention undergo factorization, it can promote a new recursive and real time updatable computation method. To test the accuracy of the new invention, the StRD data were separately tested using SAS ver 9.0, SPSS ver15.0 and EXCEL 2007 for comparison. The results showed that the accuracy of the results of the proposed invention exceeds the level of accuracy of SAS ver9.0, SPSS ver15.0 and EXCEL 2007. Aside from an accurate computation, this new invented algorithm can also produce efficient computations.

Abstract: This method determines an angular position of a rotary element rotating with respect to a stationary element where a magnetic ring rotatably fastened with the rotary element is arranged with respect to a set of N regularly distributed sensors, with N?3. Each sensor is suitable for issuing a unitary electric signal representative of a magnetic field generated by the magnetic ring. In this method, one computes a first sum of the signals issued by all N sensors and compares this sum to a first reference value. If the first sum equals the first reference value, one uses the signals of all N sensors to compute a signal representative of an instantaneous value of an angle representative of the angular position of the rotary element. If the first sum does not equal the first reference value, a series of defined steps to optionally obtain the instantaneous value are provided.

Abstract: An electronic system for compensating the dimensional accuracy of a 4-axis CNC machining system includes a CNC machining system configured to machine a plurality of features into a part, a dimensional measuring device configured to measure a plurality of dimensions of the part, and to provide an output corresponding to the measured dimensions and a compensation processor in communication with the CNC machining system and dimensional measuring device. The CNC machining system includes a global coordinate system, and at least one feature being defined relative to a local coordinate system that is translated from the machine coordinate system. Additionally, the compensation processor is configured to receive the output from the dimensional measuring device, to calculate a plurality of CNC offsets, including at least one local offset, and to provide the offsets to the CNC machining system.

Abstract: An audio processing system processes an audio signal that may come from one or more microphones. The audio processing system may use information from one or more non-acoustic sensors to improve a variety of system characteristics, including responsiveness and quality. Especially those audio processing systems that use spatial information, for example to separate multiple audio sources, are undesirably susceptible to changes in the relative position of any audio sources, the audio processing system itself, or any combination thereof. Using the non-acoustic sensor information may decrease this susceptibility advantageously in an audio processing system.

Abstract: An in-vehicle electronic control unit (ECU) for correcting an error introduced to a sensor output signal as a result of amplification is provided. An output voltage of first and second voltage generators and after-amplification voltages of such output voltages are respectively A/D converted for input into a linear function. A microcomputer adjusts the output voltage of the first and second voltage generators which are amplified by the amplification circuit so that the output signals of the first and second voltage generators are adjusted to increase a voltage difference between the two. The increased voltage difference allows accurate identification of the linear function and removal of the error that is introduced to the sensor output signal during the course of processing by the amplification circuit.

Abstract: The present invention provides a calibration apparatus for calibrating an optical apparatus, which has a scanning member and scans light on an object by rotating the scanning member, including a target member including a region irradiated with light from the scanning member, an obtaining unit configured to obtain a light amount of light reflected by the region, and a processing unit configured to execute processing for calculating a calibration value required to calibrate a rotation angle of the scanning member, wherein the region is configured to be nonplanar so that a light amount obtained by the obtaining unit changes according to a light irradiation position.

Abstract: Embodiments of the present invention provide not only a technical solution for calibrating a positioning device but also a technical solution for characterizing an area of interest in a space. Specifically, there is provided a system, which may include: a tag capable of emitting ranging signals, placed at location points which are selected as space feature points in the space; a positioning device in the space, configured to obtain relative coordinates of the space feature points in relation to the positioning device based on the ranging signals from the tag; and a server, configured to determine location parameters of the positioning device in the space based on the relative coordinates, so as to calibrate the positioning device. The positioning device can be calibrated automatically, fast and accurately using the system.

Abstract: Selecting devices from which to receive data for adjusting the performance of a positioning system. The positioning system infers the location of the devices based on beacons observed by the devices. The performance of the positioning system is compared to performance targets. One or more of the devices are selected based on the comparison. Data collection from the devices is adjusted to affect performance of the positioning system (e.g., improved or reduced). For example, if the positioning system predicts positions poorly for a particular area, data collection from selected devices within the particular area may be increased.