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1140 results about "Calibration function" patented technology
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Multi-touch auto scanning
ActiveUS20080162996A1Digital data processing detailsDetecting faulty computer hardwareEngineeringCalibration function
A system and method for autonomously scanning a sensor panel device, such as a multi-touch panel, is disclosed. In one embodiment, the system and method disables a sensor panel processor after a first predetermined amount of time has elapsed without the sensor panel device sensing any events. One or more system clocks can also be disabled to conserve power. While the processor and one or more system clocks are disabled, the sensor panel device can periodically autonomously scan the sensor panel for touch activity. Accordingly, if one or more results from the autonomous scans exceed a threshold, the sensor panel device re-enables the processor and one or more clocks to actively scan the sensor panel. If the threshold is not exceeded, then the sensor panel device continues to periodically autonomously scan the sensor panel without intervention from the processor. Furthermore, the sensor panel device can periodically perform calibration functions to account for any drift that may be present in the system.
Owner:APPLE INC
Size-based analysis of fetal DNA fraction in maternal plasma
ActiveUS20130237431A1Health-index calculationMicrobiological testing/measurementAbnormal tissue growthBlood plasma
A fractional concentration of clinically-relevant DNA in a mixture of DNA from a biological sample is determined based on amounts of DNA fragments at multiple sizes. For example, the fractional concentration of fetal DNA in maternal plasma or tumor DNA in a patient's plasma can be determined. The size of DNA fragments in a sample is shown to be correlated with a proportion of fetal DNA and a proportion of tumor DNA, respectively. Calibration data points (e.g., as a calibration function) indicate a correspondence between values of a size parameter and the fractional concentration of the clinically-relevant DNA. For a given sample, a first value of a size parameter can be determined from the sizes of DNA fragments in a sample. A comparison of the first value to the calibration data points can provide the estimate of the fractional concentration of the clinically-relevant DNA.
Owner:THE CHINESE UNIVERSITY OF HONG KONG
Method for simulating a touch on a touch screen
InactiveUS20060202969A1Input/output for user-computer interactionCathode-ray tube indicatorsTouchscreenCalibration function
Methods are provided for simulating a touch on a touch screen by applying a first signal to a first surface of the touch screen, applying a second signal to a second, opposing surface of the touch screen sensor, and changing the first signal relative to the second signal. Such methods can be used to simulate a touch to the center of the touch screen, for example. The simulated touch can be used in some embodiments to perform diagnostics and / or calibrations functions.
Owner:3M INNOVATIVE PROPERTIES CO
System and method for transferring calibration data
A test system comprises a sensor container and a testing device. The sensor container has a base and a lid. The container encloses test sensors therein. The container includes a calibration label attached thereto. The label includes electrical contacts located thereon. The electrical contacts encode calibration information onto the calibration label. The testing device has an auto-calibration feature externally located thereon. The testing device is adapted to determine the analyte concentration in a fluid sample. The auto-calibration feature includes calibration elements that communicate with the electrical contacts on the calibration label. The testing device is adapted to determine the calibration information encoded on the calibration label in response to the calibration elements engaging the electrical contacts. The encoded calibration information is determined without inserting the sensor container or the calibration label into the testing device.
Owner:ASCENSIA DIABETES CARE HLDG AG
Aerial roof estimation system and method
ActiveUS20080262789A1Increase heightMarket predictionsMechanical area measurementsImaging analysisAerial photography
A system that allows the remote measurement of the size, geometry, pitch and orientation of the roof sections of a building and then uses the information to provide an estimate to repair or replace the roof, or to install equipment thereon. The system includes an aerial image file database that shows aerial images of buildings in a designated area according to address. The slope and orientation images are typically oblique perspective views and top plan views of the buildings in the area. The system also includes an image analysis and calibration feature that enables the viewer to closely estimate the size, geometry and orientation of the building's roof sections. The information can then be used to prepare a cost estimate for the repair or replacement of the roof or installation of roof equipment. By simply inputting the potential customer's address, the company is able to determine the size, geometry, pitch and orientation of the roof sections of the building at that address, and then quickly provide an accurate estimate to the customer.
Owner:EAGLEVIEW TECH
Robot apparatus and method for controlling robot apparatus
A robot system includes a fixed camera that obtains first measurement data by detecting a plurality of features positioned within a detection range, the detection range including at least part of a range in which a robot arm is movable, a hand camera movable with the robot arm, and a control apparatus that controls the robot arm. A calibration function that relates a value obtained as part of the first measurement data to a command value provided to the robot arm at each of a plurality of positions and orientations at which the hand camera obtains second measurement data by detecting each mark.
Owner:CANON KK
3D object size estimation system for object wrapping and method thereof
ActiveUS20150276379A1Quick estimateAvoid inconsistenciesImage enhancementImage analysisComputer graphics (images)Image capture
The invention discloses a system and method for estimating a three-dimensional (3D) packaging size of an object. The method has a self calibration function to correct the scale in the measurement environment so as to reduce errors caused by human operations. The system comprises an image capture unit for capturing images of the measurement environment and objects; a scale correction unit for performing the calibration using a reference object of a known size; and an object size estimation unit for detecting the position of an object to be estimated in the image data received from the image capture unit and estimating the 3D size of the object according to the calibrated scale.
Owner:GORILLA TECH UK LTD
Multiple camera system with auto recalibration
ActiveUS20160212418A1Television system detailsDigital data processing detailsComputer graphics (images)Computer vision
A method for a computing device to recalibrate a multiple camera system includes collecting calibration data from one or more pictures captured by the multiple camera system of the computing device. The multiple camera system includes two or more cameras that are each physically separated by a distance from one another. The method further includes detecting decalibration of the camera system. The method further includes, when the camera system is decalibrated, generating recalibration parameters based on the calibration data. The method further includes determining whether the recalibration parameters are valid parameters and, when they are, updating the multiple camera system based on the recalibration parameters.
Owner:PACKSIZE
Method for inspecting object using multi-energy radiations and apparatus thereof
ActiveUS20070183568A1Reduce errorsEasy to detectUsing wave/particle radiation meansMaterial analysis by transmitting radiationComputer scienceCalibration function
The present invention discloses a method for inspecting an object using multi-energy radiations and an apparatus thereof. The method comprises the steps of: causing multi-energy radiations to interact with an object under inspection; detecting and recording detection values after an interaction between the multi-energy radiations and the object under inspection; substituting a portion of the detection values into a predetermined calibration function to obtain information comprising primary material attribute; and determining further material attributes of the object by applying a set of functions suitable for a energy band corresponding to the information. The present invention is applicable to the large container cargo inspection without opening containers at customs, ports and airports.
Owner:TSINGHUA UNIV +1
Anemometer calibration method and wind turbine
A method for re-calibrating an anemometer of a wind turbine is provided, the method comprising the steps of obtaining pairs of measured values of wind speed and a wind-speed dependent turbine variable; comparing said measured value pairs to pairs of wind speed and the turbine variable obtained from an expected turbine variable curve of the wind turbine to determine a difference between a measured wind speed value and an expected wind speed value for a given turbine variable value; and adjusting a calibration function of said anemometer on the basis of said determined difference.
Owner:GENERAL ELECTRIC CO
Calibrating apparatus and method
ActiveUS20100079412A1Precise positioningImprove precisionInput/output processes for data processingImaging processingReference line
A calibrating apparatus for an image processing apparatus is disclosed. The calibrating apparatus comprises a first operating module and a second operating module. The first operating module determines a third indicating point and a fourth indicating point according to a first indicating point, a second indicating point, and a specific point, and determines a calibration point (i.e. the predetermined position of a sensor) according to a first line through the first indicating point and third indicating point and a second line through the second indicating point and fourth indicating point. The second operating module forms reference lines according to reference points and the calibration point, forms reference angles according to the reference lines and a parallel line, generates reference coordinates of the reference points in an image and generates a calibration function according to the reference coordinates of the reference points and the reference angles.
Owner:QUANTA COMPUTER INC
Method of seismic source monitoring using modeled source signatures with calibration functions
Owner:PGS EXPLORATION US
Method of seismic source monitoring using modeled source signatures with calibration functions
Owner:PGS EXPLORATION US
Angle detector with self-calibration capability
ActiveUS20060043964A1Accurate measurementEasy calibration workMagnetic measurementsMechanical clearance measurementsArtificial intelligenceCalibration function
An angle detector with self-calibration capability has a number of first scale read heads and one second scale read head around the periphery of a single scale disk and includes means for performing self-calibration by determining measurement differences between the second scale read head and the individual first scale read heads and calculating the average thereof.
Owner:NAT INST OF ADVANCED IND SCI & TECH
Control device and method for PTZ camera with altitude self-calibration function
ActiveCN104469292ARealize automatic correctionTelevision system detailsColor television detailsMicrocontrollerThermal expansion
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
Method for inspecting object using multi-energy radiations and apparatus thereof
ActiveUS7580505B2Improve accuracyReduce errorsUsing wave/particle radiation meansMaterial analysis by transmitting radiationComputer scienceCalibration function
The present invention discloses a method for inspecting an object using multi-energy radiations and an apparatus thereof. The method comprises the steps of: causing multi-energy radiations to interact with an object under inspection; detecting and recording detection values after an interaction between the multi-energy radiations and the object under inspection; substituting a portion of the detection values into a predetermined calibration function to obtain information comprising primary material attribute; and determining further material attributes of the object by applying a set of functions suitable for a energy band corresponding to the information. The present invention is applicable to the large container cargo inspection without opening containers at customs, ports and airports.
Owner:TSINGHUA UNIV +1
Current switch with automatic calibration
ActiveUS20090115620A1Parameter calibration/settingResistance/reactance/impedencePower cableCurrent switch
A current switch is automatically calibrated when a flow of electric current is initiated in a power cable.
Owner:VERIS INDS
Multi-touch auto scanning
A system and method for autonomously scanning a sensor panel device, such as a multi-touch panel, is disclosed. In one embodiment, the system and method disables a sensor panel processor after a first predetermined amount of time has elapsed without the sensor panel device sensing any events. One or more system clocks can also be disabled to conserve power. While the processor and one or more system clocks are disabled, the sensor panel device can periodically autonomously scan the sensor panel for touch activity. Accordingly, if one or more results from the autonomous scans exceed a threshold, the sensor panel device re-enables the processor and one or more clocks to actively scan the sensor panel. If the threshold is not exceeded, then the sensor panel device continues to periodically autonomously scan the sensor panel without intervention from the processor. Furthermore, the sensor panel device can periodically perform calibration functions to account for any drift that may be present in the system.
Owner:APPLE INC
Implantable biosensor with automatic calibration
InactiveUS20100228110A1Reliable and accurate measurementSolve the real problemCatheterDiagnostic recording/measuringDialysisInterstitial fluid
Implantable self-calibrating biosensor Subcutaneously or intracorporeally implantable biosensor, characterized by a closed microfluidic circuit with calibrating fluids, which communicates by a backward micro-dialysis logic with the exterior of said circuit, an open and in contact with the tissues and the interstitial fluid working electrode, for its self-calibration. One or more working electrodes may be positioned inside openable boxes from EAP, and be opened for the duration of the measurement and closed immediately after, succeeding one another in the measurement, as their sensitivity is diminished.
Owner:TSOUKALIS ACHILLEAS
Inspection method and apparatus, lithographic apparatus, lithographic processing cell and device manufacturing method
ActiveUS20080018874A1Photomechanical apparatusUsing optical meansPrincipal component analysisCalibration function
In a scatterometric method differential targets with different sensitivities to parameters of interest are printed in a calibration matrix and difference spectra obtained. principal component analysis is applied to the difference spectra to obtain a calibration function that is less sensitive to variations in the underlying structure than a calibration function obtained from spectra obtained from a single target.
Owner:ASML NETHERLANDS BV
Semiconductor device having impedance calibration function to data output buffer and semiconductor module having the same
ActiveUS20130088257A1Impedance can be adjustedInput/output impedence modificationLogic circuit coupling arrangementsData terminalSemiconductor
Disclosed herein is a semiconductor device that includes a first transistor unit coupled to the data terminal, and a plurality of second transistor units coupled to the calibration terminal. The first transistor unit includes a plurality of first transistors having a first conductivity type connected in parallel to each other so that an impedance of the first transistor unit is adjustable. Each of the second transistor units includes a plurality of second transistors having the first conductivity type connected in parallel to each other so that an impedance of each of the second transistor units is adjustable. The semiconductor device further includes an impedance control circuit that reflects the impedance of each of the second transistor units to the first transistor unit.
Owner:LONGITUDE LICENSING LTD
Digital background calibration circuit
InactiveCN102025373AReduce areaReduce design difficultyAnalogue-digital convertersAnalogue/digital conversion calibration/testingDigital down converterSecondary stage
The invention discloses a digital background calibration circuit used for a high-speed and high-precision pipelined analog-to-digital converter. The digital background calibration circuit comprises a pseudo random number generator, pipelined circuits with calibration functions and a digital background calibration engine. Based on the structure of the traditional pipelined analog-to-digital converter, a primary-stage pipelined circuit and a secondary-stage pipelined circuit are modified in the circuit disclosed in the invention to realize the injection of random signals and the digital background calibration engine is used to associate the random signals so as to realize the real-time extraction and compensation of error information, thereby avoiding the influence of irrational factors of the traditional pipelined analog-to-digital converter (such as capacitor mismatching, limitations of operational amplifier gains and the like) on the conversion precision of the analog-to-digital converter. The technology can lower the design difficulty of an analog circuit and ensure the performance of a system. At the same time, because of the simple algorithm and the low implementation complexity, the calibration circuit can be used to effectively reduce the area of the chip and lower the power consumption of the system, thereby being especially applicable to a high-speed system.
Owner:FUDAN UNIV
Radio frequency signal generating and radio frequency power testing apparatus and power detecting method
ActiveCN101141805ARealize self-calibration functionLow costTransmitters monitoringTransmission control/equalisingRadio frequency signalEngineering
The invention discloses a radio frequency signal generating and radio frequency power detecting device. The invention comprises a radio frequency signal generating unit, which is used to generate the radio frequency signal with required frequency and power; a radio frequency signal power detecting unit, which is used to receive the radio frequency signal generated by the radio frequency signal generating unit or the radio frequency signal from the external, and to perform power detection; a radio frequency signal channel switching control unit, which is used to control the make-and-break of the input / output interface and the switching of the radio frequency signal generating unit and the radio frequency signal power detecting unit; a control unit, which is used to receive command through the interface unit, to control the radio frequency signal generating unit and the radio frequency signal power detecting unit; and an input / output interface, which is used for the input / output of the radio frequency signal. Through the adoption of the invention, the high accuracy power detection with low cost and high flexibility can be realized, and simultaneously the self calibration function can be realized, to acquire the output of the radio frequency signal with high accuracy.
Owner:ZTE KANGXUN TELECOM COMPANY
Method and apparatus for NMR measurement of wettability
InactiveUS6883702B2Assist in wettability determinationReadily apparentElectric/magnetic detection for well-loggingMagnetic property measurementsDiffusionMolecular sieve
The present invention relates to a method and apparatus for determining the wettability of a porous media, such as bone, plant, food, wood or molecular sieves, etc., having two or more fluids. The method of the present invention correlates a diffusion-relaxation calibration function representative of at least one fluid in the porous media with a 2-D function developed using diffusion-editing to determine wettability of the porous media.
Owner:SCHLUMBERGER TECH CORP
Speedometer-assisted vehicle-mounted dynamic alignment method
ActiveCN108180925AAvoid the limitations of standing stillIncrease flexibilityDistance measurementGyroscopeSimulation
The invention relates to a speedometer-assisted vehicle-mounted dynamic alignment method. The method is technically characterized by comprising steps as follows: in an inertial navigation system, inertial navigation calculation is performed, and attitude heading, speed and position information is output and updated; mileage decomposition is performed by use of an attitude angle of vehicle displacement increment output and inertial navigation calculation of a speedometer, and speedometer navigation position calculation is completed; an error model of the inertial navigation system and an errormodel of navigation position calculation are taken as equations of propagation of an error state, an attitude angle error of the inertial navigation system is estimated and calibrated by use of a Kalman filter. Deep integration is performed through the Kalman filter by use of displacement increment information provided by the vehicle-mounted speedometer and gyroscope and accelerator data providedby an inertial measurement assembly, in the running process of a vehicle, a combined navigation technology of accurate alignment of attitude heading and correction function of position errors is completed, the starting process of the vehicle-mounted navigation system can be simplified, the reaction time is shortened and the maneuvering characteristics of a carrying vehicle are improved.
Owner:TIANJIN NAVIGATION INSTR RES INST
Systems and Methods for Calibrating Triaxial Accelerometers
ActiveUS20090217733A1Optimized constantTesting/calibration apparatusSpeed measurement using gyroscopic effectsTriaxial accelerometerMeasuring output
A method for calibrating a multiple-triad triaxial accelerometer is provided. The method may include receiving accelerometer measured output from a first measurement triad and at least one additional measurement triad of the accelerometer. The method may further include aligning the output of a x, y, and z components of the first measurement triad to be substantially orthogonal with respect to each other, aligning the output of x, y, and z components of at least one additional measurement triad to be substantially orthogonal with respect to each other, and rotating the output of at least one measurement triad so the outputs of all measurement triads substantially align with each other. The method may further include storing the result of the alignment and rotation associated with at least one calibration function associated with the multiple-triad triaxial accelerometer. The alignment and rotation may be performed substantially simultaneously.
Owner:BAKER HUGHES INC
Continuous analyte monitor with multi-point self-calibration
Analyte monitors and their methods of use. The analyte monitors include multiple calibration fluids which may have different known concentrations of an analyte, such as glucose. The analyte monitors may also include sensing or washing fluids. The analyte monitors are configured to be calibrated with the multiple calibration fluids to potentially provide a more accurate determination of analyte concentrations. The analyte monitors can be adapted to be self-calibrating with the multiple calibration fluids.
Owner:ARKAL MEDICAL
Weigh-in-motion system with auto-calibration
ActiveUS20090151421A1Accurate readingWeighing apparatus testing/calibrationSpecial data processing applicationsMobile vehicleComputer science
Weigh-in-motion (WIM) systems for weighing moving vehicles, the systems having the ability to automatically determine and periodically apply calibration factors to WIM scale readings. Auto-calibration may include transferring both WIM and static weight readings for the same vehicle to a database, associating the weight readings, collecting a number of such weight readings, and analyzing the differences between the WIM and static weight readings to calculate WIM scale calibration factors. The calibration factors may be based on vehicle characteristics such as vehicle weight, vehicle class and / or vehicle speed at the WIM scale.
Owner:METTLER TOLEDO INC
Open-loop light intensity calibration systems and methods
InactiveUS6239554B1Reduce lightReduce inconsistencyPhotometry using reference valuePhotometry using wholly visual meansEffect lightVisual perception
The input light settings in many vision systems often do not correspond to fixed output light intensities. The relationships between the measured output light intensity and the input light intensity are inconsistent between vision systems or within a single vision system over time. This inconsistency makes it difficult to interchange part-programs even between visions systems of one model of vision systems, because a part program with one set of light intensity values might produce images of varying brightness on another vision system. However, many measurements depend on the brightness of the image. To solve this problem, a reference lighting curve is generated for a reference vision system, relating an input light intensity value to a resulting output light intensity. A corresponding specific lighting curve is generated for a specific vision system that corresponds to the reference vision system. A calibration function is determined that converts a reference input light intensity value into a specific input light intensity value. Accordingly, when an input light intensity value is input, the specific vision system is driven at a corresponding specific input light intensity value such that the output light intensity of the specific vision system is essentially the same as the output light intensity of the reference vision system when the reference vision system is driven at the input light intensity value. Thus, in a vision system calibrated using these lighting calibration systems and methods, the specific lighting behavior of that vision system is modified to follow a pre-defined, or reference, lighting behavior.
Owner:MITUTOYO CORP
Robust Calibration and Self-Correction for Tissue Oximetry Probe
ActiveUS20130324816A1Increase probabilityReduce data redundancyDiagnostic signal processingDiagnostics using lightTissue phantomSelf correction
A method for calibrating detectors of a self-contained, tissue oximetry device includes emitting light from a light source into a tissue phantom, detecting in a plurality of detectors the light emitted from the light source, subsequent to reflection from the tissue phantom, and generating a set of detector responses by the plurality of detectors based on detecting the light emitted from the light source. The method further includes determining a set of differences between the set of detector responses and a reflectance curve for the tissue phantom, and generating a set of calibration functions based on the set of differences. Each calibration function in the set of calibration functions is associated with a unique, light source-detector pair. The method further includes storing the set of calibration function in a memory of the self-contained, tissue oximetry device.
Owner:VIOPTIX
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