Class / Patent application number | Description | Number of patent applications / Date published |
702087000 | Zeroing (e.g., null) | 28 |
20080221818 | Correction of Factors in Vehicle Accelerometer Signals - A method for measuring and storing values of sensor bias in acceleration values for a vehicle, obtained over a plurality of time periods from a sensor having a specified range of expected variability of sensor bias values, includes measuring a first value of sensor bias obtained during operation of the vehicle in a first time period, storing the measured first value of sensor bias for use in one or more subsequent time periods, measuring a second value of sensor bias obtained during operation of the vehicle in a second time period, subtracting the measured second value of sensor bias from the stored first value of sensor bias, thereby generating a sensor bias difference, and storing the measured second value of sensor bias, for reference in one or more subsequent time periods, if the sensor bias difference is within the specified range of expected variability of sensor bias values. | 09-11-2008 |
20080221819 | Method of motion correction in optical coherence tomography imaging - An image data set acquired by an optical coherence tomography (OCT) system is corrected for effects due to motion of the sample. A first set of A-scans is acquired within a time short enough to avoid any significant motion of the sample. A second more extensive set of A-scans is acquired over an overlapping region on the sample. Significant sample motion may occur during acquisition of the second set. A-scans from the first set are matched with A-scans from the second set, based on similarity between the longitudinal optical scattering profiles they contain. Such matched pairs of A-scans are likely to correspond to the same region in the sample. Comparison of the OCT scanner coordinates that produced each A-scan in a matching pair, in conjunction with any shift in the longitudinal scattering profiles between the pair of A-scans, reveals the displacement of the sample between acquisition of the first and second A-scans in the pair. Estimates of the sample displacement are used to correct the transverse and longitudinal coordinates of the A-scans in the second set, to form a motion-corrected OCT data set. | 09-11-2008 |
20080255787 | Capacitance Manometers and Methods Relating to Auto-Drift Correction - Systems, methods, and apparatus, including software implementation, are disclosed providing drift prediction of output values for manometers. A signal or other indication may be provided for or in relation to a capacitance manometer when a servicing, replacing, and/or zeroing event is predicted or determined to be required, based on a history (e.g., timestamps) associated with previous zeroing events. Previously recorded timestamps can be curve fit with suitable functions to calculate or predict future maintenance, calibration, and/or replacement events for a manometer. Such signals or indications can be generated as an on-screen indication, and could also be available upon interrogation of the manometer via a digital communications link or system. | 10-16-2008 |
20090076756 | WEIGHT MEASURING APPARATUS - The invention provides a weight measuring apparatus which carries out zero-point reset as an output value of a load signal in an unloaded state when the weight measuring apparatus is not in use, including a weight measuring unit that measures a load applied to a machine body and outputs the load signals; and a control device that receives the load signals from the weight measuring unit at reset time intervals for carrying out the zero-point reset of the weight measuring unit in the unloaded state, in which the control device changes the reset time interval to next zero-point reset according to the difference between the output value of the load signal at the time of previous zero-point reset and the output value of the load signal at zero-point reset of this time. | 03-19-2009 |
20090099803 | Method Of Determining Measurement Probe Orientation - A dimensional measurement probe ( | 04-16-2009 |
20090132191 | SYSTEM AND METHOD FOR ZERO RESETTING OF A MEASURING MACHINE - A method for zero resetting of a measuring machine is provided. A zero-reset instruction is received. A zero-reset direction S | 05-21-2009 |
20100191494 | SENSOR OUTPUT CORRECTING DEVICE - A sensor output correcting device includes: a sensor element for detecting a variation in an object to be measured, and for outputting this variation as a signal; an A/D converter for converting the analog signal outputted from the sensor element into a digital signal; a zero reference value calculating unit for calculating a zero reference value which is a drift amount of the sensor element from the signal outputted from the sensor element; a zero point correcting unit for correcting a zero point of the signal outputted from the A/D converter on the basis of the zero reference value calculated by the zero criterion calculating unit; an output limiting unit for limiting a value of an output signal inputted from the zero point correcting unit on the basis of a correction amount provided by the zero point correcting unit, and a high frequency removing unit for removing a high frequency component. | 07-29-2010 |
20110040512 | ELECTRICAL EQUIPMENT ASSEMBLY AND METHOD OF CALIBRATING AN ELECTRICAL EQUIPMENT ASSEMBLY - An electrical equipment assembly includes at least one electrical device provided with an identifier member. The identifier member includes a measurement tolerance data associated with the electrical device. The electrical assembly also includes a meter electrically coupled to the electrical device. The meter includes a memory device, a processor device operatively coupled to the memory device, a communication link member operatively coupled to the processor device, and a selectively updatable measurement tolerance indicator stored in one of the memory device, the processor device. The processor device being configured and disposed to establish measurement accuracy of the meter based on the tolerance indicator stored in the memory device. | 02-17-2011 |
20110144936 | PHOTOELECTRIC SMOKE SENSOR - Provided is a photoelectric smoke sensor capable of correcting a sensitivity according to a state of contamination. The photoelectric smoke sensor includes: a storage section ( | 06-16-2011 |
20110172943 | ZERO-POINT SETTING METHOD AND APPARATUS FOR ELECTRONIC SCALES - An exemplary apparatus/system or method for establishing initial zero-points and current zero-points includes an initial zero device programmed to establish an initial zero-point and a semi-automatic zero device programmed to either establish a current zero-point or to reset or power cycle a scale when a current zero-point cannot be established. | 07-14-2011 |
20110288804 | Sighting Apparatus for Remote-Control Shooting System and Sight Alignment Method Using the Same - Disclosed are a sighting apparatus for a remote-control shooting system and a sighting alignment method using the same. The sighting apparatus for a remote-control shooting system including a firearm installed in a firearm platform rotatable in up, down, left and right directions, and an observation camera installed to be position-adjustable in at the firearm platform, the sighting apparatus includes: a sighting unit which is fastened to the firearm with a zeroing unit precisely up, down, left and right adjustable therebetween, and takes a first image as zeroed; and a controller which controls the firearm platform so that an sighting indicator (e.g., a line) of the first image taken by the sighting unit can be aligned with a target, and aims at the target. | 11-24-2011 |
20120109562 | ROTATIONAL ANGLE DETECTION DEVICE - A rotational angle detection device has a resolver in which an excitation coil, a first output coil and a second output coil are provided on a periphery of a rotor coupled to a rotation shaft, an excitation signal generator circuit that generates an excitation signal and sends the excitation signal to the excitation coil, and a rotational angle calculation unit that performs sampling for respective output signals of the first output coil and the second output coil in a predetermined cycle, and calculates a rotational angle of the rotation shaft based on two sampling signals obtained as a result of the sampling. The excitation signal generator circuit is of a single excitation mode and generates a single excitation signal. | 05-03-2012 |
20120130666 | INSPECTION METHOD - In order to inspect a board, a measurement area is set on a board, and reference data and measurement data of the measurement area are acquired. Then, a conversion condition is established for the measurement area, and a conversion relation is acquired according to a distortion degree between reference data and measurement data. Thereafter, validity of the conversion relation is verified by using at least one of verifying that a comparison feature object satisfies the conversion relation, verifying that a verification feature object selected from feature objects satisfies the conversion relation and verifying that a pad formed on the board satisfies the conversion relation. Then, the conversion condition is confirmed, and an inspection area for inspecting a measurement target is set according to the confirmed conversion condition. Thus, an inspection area may be correctly set so that distortion is compensated for. | 05-24-2012 |
20120173183 | Gobo Wheel Location Drive - A gobo wheel with automatic detection system that automatically detects a rotational position of the gobo. The rotational position can be detected by a magnetic marking system. Each of the gobos can be randomly placed within the holder. The position of the gobos can be automatically determined during a start up routine for example, and then those positions can be stored and used for later determination of a position. | 07-05-2012 |
20120197572 | SIMPLE GENERATION OF A REMOTE-CONTROL SEQUENCE FOR MEASURING DEVICES - A measuring device provides a central data-processing unit, a control unit and at least one memory unit. The control unit and the at least one memory unit are connected to the central data-processing unit. At a given time, the control unit compares the adjustable parameters of the measuring device with parameters for a basic setting of the measuring device and generates control commands for the adjustment of the deviating parameters, or the control unit registers the parameter changes from a given time and generates control commands from these in order to adjust the changed parameters. | 08-02-2012 |
20120278023 | METHOD OF CONFIRMING MOTION PARAMETERS APPARATUS FOR THE SAME, AND MOTION ASSISTING DEVICE - The invention provides a method of confirming motion parameters, an apparatus for the same, and a motion assisting device. The invention obtains and utilizes the motion data of a recognized object sampled at each of the sampling time, comprising the acceleration of the recognized object sampled by a tri-axial accelerometer, the angular velocity of the recognized object sampled by a tri-axial gyroscope, and the angle of the recognized object corresponding to a three-dimensional geomagnetic coordinate system sampled by a tri-axial magnetometer. Feedback calculation is utilized to obtain an actual acceleration at each sampling time from the motion original time to the motion end time, and the actual acceleration is obtained by reducing the acceleration of gravity from the acceleration sampled by a tri-axial accelerometer. The invention reduces the complexity of the system, and the accuracy is less affected by environmental factors, particularly light. | 11-01-2012 |
20120278024 | POSITION ESTIMATION APPARATUS AND METHOD USING ACCELERATION SENSOR - A position estimation apparatus may measure 3-axis accelerations by at least two acceleration sensors disposed at different distances from a center of rotation of the position estimation apparatus, measure 3-axis angular velocity by a gyro sensor, and detect an azimuth angle using a geomagnetic sensor. Using the 3-axis accelerations measured by the acceleration sensors and the 3-axis angular velocity measured by the gyro sensor, the position estimation apparatus calculates gravity acceleration from which a rotational motion component is extracted. | 11-01-2012 |
20120303308 | Baseline Setting Method - The figure is fixed in a given position. If peaks are seen in the positive Y direction, the minimum value of the difference in height between the spectrum and the figure in the range where the figure is present on the X-axis. The minimum value and the height of the figure at the reference point are added. The figure is moved within a range containing the reference point, and the minimum value of the difference in height between the spectrum and the figure is added to the height of the figure at the reference point, at each point on the figure. A maximum value L | 11-29-2012 |
20130066578 | METHOD AND DEVICE FOR DETERMINING ZERO-RATE OFFSET OF A GYROSCOPE, AND SYSTEM COMPRISING THE DEVICE - The invention relates to a method of determining a zero-bias error of a gyroscope, an apparatus for determining a zero-bias error of a gyroscope and a system including the apparatus. The method includes the steps of: a. obtaining a set of outputs of the gyroscope; b. determining a dispersion degree of the outputs; c. determining whether the dispersion degree satisfies a predetermined condition and performing the step of d or e based upon a result of the determination; and d. determining an average of the outputs as the zero-bias error of the gyroscope when the dispersion degree satisfies the predetermined condition; or e. obtaining another set of outputs of the gyroscope and repeating performing the steps of b to c on the another set of outputs when the dispersion degree does not satisfy the predetermined condition. | 03-14-2013 |
20130138376 | CENTER OF GRAVITY DETERMINATION - In one embodiment a method to determine a center of gravity of a three dimensional object comprises positioning the object on a test platform in a first orientation, determining a position of the center of gravity along a first axis and a second axis when the object is in the first orientation, rotating the object with respect to a third axis which is orthogonal to the first axis and the second axis, determining a position of the center of gravity along at least one of the first axis or the second axis when the object is in the second orientation, and using a change in the position of the center of gravity along the at least one of the first axis or the second axis when the object is in the second orientation to determine a position of the center of gravity along the third axis. Other embodiments may be described. | 05-30-2013 |
20130179105 | Electronic Bias Compensation for a Gyroscope - A method for compensating for bias of a gyroscope. In one embodiment, bias measurements for a plurality of drive angles are generated using the gyroscope. A set of equations for the bias of the gyroscope is identified using a model for motion of the gyroscope. The set of equations includes a set of parameters for the bias of the gyroscope. A set of values for the set of parameters is identified using the bias measurements and the set of equations. | 07-11-2013 |
20130179106 | SYSTEM AND PROCESS FOR DETERMINING OFFSETS OF MEASURING INSTRUMENTS | 07-11-2013 |
20130218500 | METHOD FOR CORRECTING THE DRIFT OF AN INFRARED RADIATION DETECTOR COMPRISING AN ARRAY OF RESISTIVE IMAGING BOLOMETERS AND DEVICE IMPLEMENTING SUCH A METHOD - A method corrects a gain table by a correction of the response dispersion of resistive bolometers of a bolometric detector of a bolometer retina. | 08-22-2013 |
20130245981 | SYSTEMS AND METHODS FOR PROCESSING ANALYTE SENSOR DATA - Systems and methods for applying time-dependent algorithmic compensation functions to data output from a continuous analyte sensor. Some embodiments determine a time since sensor implantation and/or whether a newly initialized sensor has been used previously. | 09-19-2013 |
20140288865 | BLADE TIP TIMING - A method of zeroing displacement data derived from a rotor having an array of features monitored by an array of stationary timing probes. The method includes steps to calculate the displacement at each probe for each of at least two measured revolutions from time of arrival measurements. Each displacement is defined as a sum of a common term and a unique term. The set of displacements is solved for the common term and the unique terms. A probe offset is calculated from each unique term. The zeroed displacements are determined by subtracting the common term and probe offset from the calculated displacements for each probe. | 09-25-2014 |
20140336968 | METHOD AND APPARATUS FOR CALIBRATING A MAGNETIC SENSOR - A magnetic sensor is calibrated by acquiring magnetic field measurements, fitting at least part of the plurality of magnetic field measurements to an ellipsoid model to obtain a coordinate of a center of the ellipsoid model, and determining a calibration offset according to the coordinate of the center of the ellipsoid model. The calibration offset is used to calibrate the magnetic sensor. The magnetic sensor itself obtains the magnetic field measurements. A processing device coupled to the magnetic sensor operates to process the magnetic field measurements is accordance with the ellipsoid mode and determine the calibration offset. | 11-13-2014 |
20150149104 | Motion Tracking Solutions Using a Self Correcting Three Sensor Architecture - A system of sensors including 1) an accelerometer, 2) a magnetometer, and 3) a gyroscope, combined with a zero crossing error correction algorithm, as well as a method of using those sensors with the zero crossing error correction algorithm, for orientation motion tracking applications, including sports and athletics training, animation for motion picture and computer gaming industry, 3D joysticks, and peripherals for computer gaming industry, as well as medical and health diagnosis and monitoring systems. | 05-28-2015 |
20160091417 | CALIBRATION CURVE CREATION METHOD AND DEVICE, TARGET COMPONENT CALIBRATION METHOD AND DEVICE, AND ELECTRONIC APPARATUS - A calibration curve creation method includes a step of obtaining an independent component matrix including independent components of each sample, and this step includes a step of obtaining the independent component matrix by performing a first preprocess including normalization of the observation data, a second preprocess including whitening, and independent component analysis in this order. In the first preprocess, normalization is performed after a process based on project on null space (PNS) is performed. In the PNS, as a single-variable function representing a variation which depends on an ordinal number λ (where λ is an integer from 1 to N) of a data length N of the observation data, not a power function of λ with an exponent of an integer but a single-variable function which monotonously increases according to an increase in λ in a range of the value of λ from 1 to N is used. | 03-31-2016 |