Zeroing (e.g., Null) Patents (Class 702/87)
  • Patent number: 9360362
    Abstract: A force-measuring device (1) for a gravimetric measuring instrument has a stationary part (11) and a load-receiving part (12). Parallel guide members (14, 15) connect the receiving parts. The device also has at least one balance beam (19) connected to the load-receiving part through a coupling element (17) acting on a first lever arm (18) thereof, and which, at a second lever arm (20) thereof, is connected to a measurement transducer (22) which is arranged on the stationary part. Further levers (29, 30) can be arranged, respectively, between the first lever arm and the load-receiving part, and between the second lever arm and the measurement transducer. At least one sliding weight (23, 23A, 23B) is arranged on the at least one balance beam, wherein the position of each of the sliding weights present can be varied in a controlled way by means of at least one drive mechanism.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: June 7, 2016
    Assignee: Mettler-Toledo GmbH
    Inventors: Andreas Metzger, Stephan Baltisberger, Hans-Rudolf Burkhard
  • Patent number: 9274213
    Abstract: A method and a device are provided for calibrating a plurality of environment sensors in a vehicle. Traffic light signals are detected and identified from the data of at least one environment sensor or from data received by a car-2-X communication unit. A calibration of the plurality of environment sensors is activated and performed in response to a determination that a traffic light signal pertaining to the vehicle has turned red.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: March 1, 2016
    Assignees: Conti Temic microelectronic GmbH, Continental Teves AG & Co. oHG
    Inventors: Stefan Hegemann, Matthias Komar, Stefan Lueke
  • Patent number: 9057789
    Abstract: A radiation measuring device includes: a detector that detects radiation; a preamplifier that amplifies a signal outputted from the detector; a shaping amplifier that shapes the waveform of the signal outputted from the preamplifier; an A/D converter that converts the analog signal output from the shaping amplifier to a digital signal; and a digital data processing unit that calculates digital signal output from the A/D converter, wherein energy information of the radiation inputted to the detector is obtained from a pulse height of the pulse signal processed by the preamplifier and the shaping amplifier, and the pulse height of the current pulse is corrected in the digital data processing unit by performing an arithmetic operation using the pulse height information of the current pulse digitalized by the A/D converter, the generation time information of the preceding pulse, and the pulse height information of the preceding pulse.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: June 16, 2015
    Assignee: HITACHI, LTD.
    Inventors: Tomoyuki Seino, Yuichiro Ueno, Takafumi Ishitsu
  • Publication number: 20150149104
    Abstract: 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.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 28, 2015
    Inventors: John Baker, Remigio Perales
  • Patent number: 9020776
    Abstract: An inclination angle compensation system for determining an inclination angle of a machine is disclosed. The inclination angle compensation system may have a non-gravitational acceleration estimator configured to estimate a non-gravitational acceleration of a machine based on an estimated inclination angle and an acceleration output from a forward acceleration sensor. The inclination angle compensation system may also have an inclination angle sensor corrector configured to receive an inclination angle output from an inclination angle sensor, determine an inclination angle sensor acceleration based on the inclination angle output, and calculate a corrected inclination angle of the machine based on the non-gravitational acceleration and the inclination angle sensor acceleration.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: April 28, 2015
    Assignee: Caterpillar Inc.
    Inventor: Paul Russell Friend
  • Patent number: 8978442
    Abstract: An electric input key has an actuating surface and a plurality of displacement sensors which are each designed to generate a displacement signal when the actuating surface is touched. The input key also has an evaluation unit for evaluating the displacement signals and outputting a determined switching state. The input key has at least one analog displacement sensor, at least one digital displacement sensor, and a calibration device for calibrating the analog displacement sensor by using displacement signals measured by the digital displacement sensor. The evaluation unit is designed to carry out self-diagnosis by using calibrated and measured displacement signals.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: March 17, 2015
    Assignee: Audi Ag
    Inventors: Harald Merklein, Martin Bauer
  • Patent number: 8939006
    Abstract: A photoacoustic detector wherein control circuits compensate for long term variations of components therein including a light source and sensing microphones. The control circuits intermittently energize the source to evaluate changes in at least source resistance. The control circuits intermittently energize an acoustic generator to evaluate changes in one or more generator responsive microphones.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: January 27, 2015
    Assignee: Honeywell International Inc.
    Inventors: Thomas M. Rezachek, Gary P. Shubinsky, Michael Freeman
  • Publication number: 20140336968
    Abstract: 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.
    Type: Application
    Filed: May 7, 2014
    Publication date: November 13, 2014
    Inventors: Travis Tu, Shu Fang
  • Patent number: 8880371
    Abstract: A method for adjusting a sensor, continuous sensor or automatic measuring system in an interstitium including the steps of adjusting the steepness of a measuring curve and a standard offset (standard axis intercept) prior to the use of the sensor, continuous sensor or measuring system, and adapting the offset by a point calibration by using a reference measure or value during the use. The present invention encompasses sensors, continuous sensors or automatic measuring systems calibrated or adjusted in accordance with the method, and in some embodiments, the offset adjusted prior to use is rectified according to the difference between a value determined by the sensor, continuous sensor or measuring system taking into account the standard steepness and the reference value.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: November 4, 2014
    Assignee: Roche Diagnostics International AG
    Inventors: Uwe Beyer, Michael Krieftewirth, Ulrich Haueter
  • Patent number: 8849520
    Abstract: Some embodiments of the present disclosure relate to a sensor interface module that selectively varies the resistance of an RLC network based upon one or more properties of exchanges data signals between one or more sensors and a controller (e.g., an ECU). The disclosed sensor interface module has a closed control loop that receives modulated sensor current signals from one or more sensors and that regulates a modulated output voltage that is provided to the one or more sensors. A protocol processor detects one or more properties of the exchanged voltage and current signals. The protocol processor provides the detected properties to an impedance controller, which selectively varies the value of an impedance element within an RLC network, located between the sensor interface module and the one or more sensor, to adjust the one or more properties in a manner that improves performance of the sensor interface module.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: September 30, 2014
    Assignee: Infineon Technologies AG
    Inventor: Dirk Hammerschmidt
  • Publication number: 20140288865
    Abstract: 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.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 25, 2014
    Applicant: ROLLS-ROYCE PLC
    Inventors: Peter RUSSHARD, Jason David BACK
  • Patent number: 8825295
    Abstract: A system for determining an angular position of a pair of steerable wheels of a vehicle having a plurality of wheels can include a yaw rate sensor, a pair of wheel speed sensors and a controller. The yaw rate sensor can be configured to output data representative of an angular velocity of the vehicle about a vertical axis of the vehicle. Each of the pair of wheel speed sensors can be configured to output data representative of a rotational velocity of a respective one of the plurality of wheels. The controller can be in electrical communication with each of the pair of wheel speed sensors and the yaw rate sensor.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: September 2, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventor: Steven Paul Turner
  • Patent number: 8762091
    Abstract: An apparatus for measuring an inertial property on a set of one or more axes is disclosed. The apparatus includes a first inertial sensor arranged to measure the inertial property, having a first predetermined resolution and a first predetermined measurement range, and a second inertial sensor arranged to measure the inertial property, having a second predetermined resolution and a second predetermined measurement range. The second resolution is coarser than the first and the second measurement range is larger than the first. A processing system is adapted to receive measurement signals from the first and second inertial sensors and, when the output of the first inertial sensor is within the first predetermined measurement range, to update an error estimate for adjusting the output of the second inertial sensor, based on the measurement signals from the first and second inertial sensors.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: June 24, 2014
    Assignee: Thales Visionix, Inc.
    Inventors: Eric Foxlin, Sheng Wan
  • Patent number: 8689604
    Abstract: An integrated circuit includes a transducer and transducer circuitry and additional elements useful in testing the transducer and transducer circuitry. A first power supply terminal and a second power supply terminal are for being directly connected to an external power supply terminal. A power bus is connected to the first power supply terminal. A logic function is for determining if the second power supply terminal is receiving power and if an automatic calibration test of the transducer and transducer circuitry has been run. An automatic calibration is for running an automatic calibration test on the transducer and transducer circuitry if the logic means determines that the second power supply terminal is receiving power and the automatic calibration test of the transducer and transducer circuitry has not been run.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: April 8, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Peter S. Schultz, Sung-Jin Jo
  • Patent number: 8649999
    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.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: February 11, 2014
    Assignee: Hillcrest Laboratories, Inc.
    Inventors: Hua Sheng, Bryan A. Cook, Matthew G. Liberty
  • Publication number: 20140032117
    Abstract: A method and apparatus for removing drift from a curve of raw data acquired from a wellbore that intersects a subterranean formation. The raw data curve is filtered to remove DC components, integrating the filtered curve generates a new baseline curve. Adding the new base line curve to the filtered curve yields a corrected curve that is used to extract drift from the raw data curve. The corrected curve is filtered and then subtracted from the raw data curve to produce a drift curve. A data curve, absent any drift, is generated by filtering the drift curve, and subtracting the filtered data curve from the raw data curve.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 30, 2014
    Inventor: Adrian Esteban Scillato
  • Patent number: 8628721
    Abstract: A system is provided for measuring an analyte concentration in a body fluid sample, comprising at least one cartridge that contains consumables for multiple measurements, a data carrier affixed to the cartridge that contains calibration information for the consumables, a hand-held device including a reading facility for receiving a cartridge of this type and for reading its data carrier, a measuring facility for measuring the result of a detection reaction, and a processor for controlling the measuring facility and for analysis of a measuring signal. At least one replaceable data storage unit is further provided in which supplementary data is stored. The data storage unit functions in combination with calibration information from the data carrier and is used by the processor to determine whether the consumables of the inserted cartridge renders a reliable measurement of analyte concentration.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: January 14, 2014
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Christoph Eisenhardt, Heino Eikmeier
  • Patent number: 8590361
    Abstract: Zero and calibration drift errors in a magnetic flow meter can be detected and automatically corrected. A zero error can be detected by measuring an amplifier output when the meter's electromagnet is inactive. Automatic calibration of the span can be done by adding a signal to a measured electrode voltage at an amplifier input, subtracting the expected amplified value of that signal at the output and adjusting the amplifier gain responsive to the difference in signal magnitude.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: November 26, 2013
    Assignee: Onicon, Inc.
    Inventor: Murray F Feller
  • Patent number: 8566054
    Abstract: Embodiments of the present disclosure provide an apparatus and method for managing an orientation of a tab of a control surface of an aircraft comprising an elongate structure having a number of members configured to position the elongate structure to a control surface, a bracket located on the elongate structure, a plurality of indicators located along the elongate structure, and a data processor in communication with the plurality of indicators. The bracket may be positioned against an edge of a tab of the control surface. Each of the plurality of indicators may be configured to generate a number of measurements about an orientation of the tab on the control surface. The data processor may be configured to present information about the orientation of the tab on the control surface.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: October 22, 2013
    Assignee: The Boeing Company
    Inventors: Charlotte L. Schweigert, Thomas J. Small, John W. Porter
  • Patent number: 8564532
    Abstract: A system for controlling a computer is provided. The system includes a position sensing apparatus configured to be disposed in operative proximity to a sensed object and thereby obtain positional data pertaining to the sensed object, and engine software configured to receive the positional data and process the positional data to determine an assessed actual position of the sensed object relative to a neutral reference position and output control commands based on the assessed actual position of the sensed object, the control commands configured to control presentation of a rendered scene, the control commands being scaled relative to changes in the assessed actual position of the sensed object, the scaling of the changes in assessed actual position of the sensed object causing presentation of the rendered scene to be skewed; wherein the engine software is further configured to automatically correct the skewing of the rendered scene by modifying the control commands.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: October 22, 2013
    Assignee: NaturalPoint, Inc.
    Inventors: James D. Richardson, Harold Parks, Dean C. Wills
  • Patent number: 8552739
    Abstract: In an electronic device and a method of correcting time-domain reflectometers, two channels of a time-domain reflectometer are connected to a corrector using cables, and the two channels are enabled to transmit pulses. Parameters Step Deskew and Channel Deskew of the two channels are zeroed. Resistance values of the two channels are measured simultaneously, and the value of the parameter Step Deskew of one of the two channels is adjusted according to the Resistance values of the two channels. Times of achieving the same resistance value of the two channels are measured after the cables and the connector have been disconnected, and the value of the parameter Channel Deskew of one of the two channels is adjusted according to the times of achieving the same resistance value. The adjusted values of the parameters Step Deskew and Channel Deskew are displayed through a display unit.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: October 8, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsien-Chuan Liang, Shen-Chun Li, Shou-Kuo Hsu
  • Publication number: 20130245981
    Abstract: 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.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 19, 2013
    Applicant: DexCom, Inc.
    Inventors: Michael J. Estes, Stephen J. Vanslyke, Apurv Ullas Kamath, Thomas A. Peyser, Lucas Bohnett, Aarthi Mahalingam, Arturo Garcia, Peter C. Simpson, Anna Leigh Rack-Gomer, Sebastian Bohm
  • Publication number: 20130218500
    Abstract: A method corrects a gain table by a correction of the response dispersion of resistive bolometers of a bolometric detector of a bolometer retina.
    Type: Application
    Filed: February 20, 2013
    Publication date: August 22, 2013
    Applicant: ULIS
    Inventor: ULIS
  • Patent number: 8510068
    Abstract: 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 (6) for storing a zero detection value VN and an initial zero detection value; a moving average value calculating section (51) for calculating a moving average value of detection AD values output from a detection portion (1, 2, 3); a zero detection value updating section (52) for calculating a new zero detection value VN when a sensitivity of the detection portion is decreased as compared with that in an initial state, and in addition, when a rate of change in the moving average value with respect to the zero detection value VN exceeds a predetermined value; a detection AD value correcting section (53) for correcting the detection value; and a smoke-density computing section (54) for converting the corrected detection value into smoke-density data.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: August 13, 2013
    Assignee: Nohmi Bosai Ltd.
    Inventor: Takahiro Kawashima
  • Publication number: 20130179106
    Abstract: A system (1) is described for determining offsets (?) of measuring instruments, in particular of measures with a null or constant mean value, composed of first processing means (3) adapted to compute, from at least one value of a measuring signal (S) deriving from an instantaneous measure performed by at least one measuring instrument or a sensor, at least one offset value (?) of such signal (S); and second processing means (5) adapted to subtract such offset value (?) from the value of the instantaneous measure signal (S) to obtain a corrected measure value (S??) of such signal S. A process is also described for determining offsets (?) of measuring instruments, in particular of measures with a null or constant mean value.
    Type: Application
    Filed: September 13, 2011
    Publication date: July 11, 2013
    Applicant: PSC ENGINEERING S.R.L.
    Inventor: Santino Crupi
  • Publication number: 20130179105
    Abstract: 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.
    Type: Application
    Filed: January 11, 2012
    Publication date: July 11, 2013
    Inventors: Yong Liu, Anthony Dorian Challoner
  • Patent number: 8456160
    Abstract: The gauss meter devices of the present invention are small, low power 3 axis field monitor board which detects DC to slow varying magnetic fields. The unit is designed to be embedded into a system which may be sensitive to magnetic fields and needs to continuously measure the magnitude of the field around it. The unit continuously monitors and logs magnetic fields on X, Y and Z axes and it also logs the vector summation of the X, Y and Z axes. The unit may be controlled and queried by wired serial communication means or by means of an integrated radio frequency (RF) transceiver. The RF transceiver may utilize a proprietary communication protocol or a standard wireless communication protocol such as ZigBee, Bluetooth or any of the IEEE communications standards. The many configuration settings of the device may be changed by the user by issuing commands to the device from an established command set.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: June 4, 2013
    Assignee: Sypris Test & Measurement
    Inventors: Guilford Louis Cantave, Larry Neil Purvis, Mark Jeffery Green
  • Patent number: 8457916
    Abstract: This invention relates to a method and device for calibrating the offset of an imaging system. The core idea of the invention is to place a reference object in the measurement chamber of the imaging system, measure the signals associated with the reference object at different points of time, calculate the merit function based on changes of the parameters representing the electromagnetic property of the reference object, and derive an optimal set of offset data that minimizes the value of the merit function for compensating the offset of the system in subsequent image reconstructions. In one embodiment, the invention uses a reference object comprising a non-conductive envelope and a cavity which can be filled with a conductive fluid and emptied, and in this way reduces the imaging interference caused by the reference object during monitoring.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: June 4, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Dayu Chen, Ming Yan
  • Publication number: 20130138376
    Abstract: 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.
    Type: Application
    Filed: November 28, 2011
    Publication date: May 30, 2013
    Inventors: Robert D. Fordice, Daniel J. Wright, Donald G. Morris, Nathan A. Fabro
  • Patent number: 8434345
    Abstract: An apparatus for improving the procedure for quantifying the volume of liquid dispensed by a liquid-dispensing mechanism of an analytical instrument. The apparatus of this invention comprises (a) at least one weigh cup; (b) at least one standard mass; (c) at least one transducer assembly to convert a value of weight to an electrical response; and (d) at least one electronic circuit for converting the electrical response to a measurement of volume. This invention provides a method for calibrating readings of the volume of liquid dispensed by a liquid-dispensing mechanism of an analytical instruments so that absolute measurements of the volume of liquid dispensed can be obtained.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: May 7, 2013
    Assignee: Abbott Laboratories
    Inventors: Kurt M. Klosterman, Ganesh Rajagopal, Larry R. Jibson, James L. Dempski, Paul A. Matuszewski, Jeffrey W. Stewart, Jeffrey R. Swanson, David M. Tipotsch, Randall E. Youngs, Noman A. Abunimeh
  • Publication number: 20130090861
    Abstract: A method for verifying an ILS signal for DNA processing includes obtaining the ILS signal, determining acquisition times between peaks of the ILS signal, obtaining acquisition times between peaks in reference ILS information for the ILS signal, and verifying the ILS signal based on the ILS acquisition times and the reference ILS acquisitions times. An ILS signal processor (116) includes a false peak remover (208) that removes any false peaks in an ILS signal and a signal verifier (212) that verifies the ILS signal includes only true peaks based on reference ILS information for the ILS signal.
    Type: Application
    Filed: June 29, 2010
    Publication date: April 11, 2013
    Inventor: Ching Ming Lai
  • Patent number: 8407022
    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 at least two, different bias estimating techniques. A resultant combined or selected bias estimate may then be used to compensate the biased output of the sensor in, e.g., a 3D pointing device.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: March 26, 2013
    Assignee: Hillcrest Laboratories, Inc.
    Inventors: Hua Sheng, Matthew G. Liberty, Christopher D. Roller, Charles W. K. Gritton
  • Publication number: 20130066578
    Abstract: 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.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 14, 2013
    Applicant: STMicroelectronics (China) Investment Co., Ltd.
    Inventor: Travis Tu
  • Patent number: 8387439
    Abstract: In order to determine a signal offset (OFS_SIG) of a roll rate sensor in a vehicle (10), a roll rate sensor signal (OMEGA_ROLL_SIG) is detected. A transversal acceleration (AC) of the vehicle (10) is determined. A temporal derivative (DRV_AC) of the transversal acceleration (AC) is determined. Verification is made as to whether a value of the temporal derivative (DRV_AC) of the transversal acceleration (AC) is smaller than a predefined first threshold value (THD—1). The signal offset (OFS_SIG) of the roll rate sensor is determined in accordance with the roll rate sensor signal (OMEGA_ROLL_SIG) if the value of the temporal derivative (DRV_AC) of the transversal acceleration (AC) is smaller than the predefined first threshold value (THD—1).
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: March 5, 2013
    Assignee: Continental Automotive GmbH
    Inventors: Zheng-Yu Jiang, Matthias Kretschmann, Jens Daniel Schlachter
  • Patent number: 8380454
    Abstract: 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.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: February 19, 2013
    Assignee: General Electric Company
    Inventor: John Steven Holmes
  • Publication number: 20130008226
    Abstract: A micro-system, for example a micro-sensor, comprises a resonator 10 with vibrating element(s) 11 receiving an excitation signal E of a loop 20 for automatic gain control, as a function of an amplitude setpoint (C) and providing as output a signal y(t) defined by a peak amplitude having a nominal value A0 dependent on the said setpoint and a resonant frequency. The micro-sensor integrates a circuit for measuring a quality factor of the resonator based on a measurement of an attenuation of the output signal during a momentary phase of cutoff of the excitation signal E applied to the resonator. This circuit for measuring the quality factor is configured so as to activate the excitation signal cutoff phase, for a duration of cutoff Td such that at the end of the cutoff phase, the peak amplitude of the output signal is attenuated by factor to the nominal peak amplitude A0 at the start of the cutoff phase, by a factor k with 1<k?2.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 10, 2013
    Applicant: THALES
    Inventors: Régis Quer, Sébastien Simoens, Pierre-Olivier Lefort
  • Patent number: 8340860
    Abstract: An acceleration detection device for detecting detected acceleration of a vehicle is provided with a stopped acceleration detector, an acceleration change detector, an acceleration estimating unit and a correcting unit. The stopped acceleration detector detects a detected stationary acceleration value when the vehicle is stopped on a sloping road based on an acceleration sensor signal from an acceleration sensor mounted on the vehicle. The acceleration change detector detects an acceleration change associated with the vehicle transitioning from a stationary state to a driving state on the sloping road based on the acceleration sensor signal. The acceleration estimating unit estimates an estimated stationary acceleration value based on the acceleration change that was detected by the acceleration change detector. The correcting unit corrects the detected stationary acceleration value based on a deviation between the estimated stationary acceleration value and the detected stationary acceleration value.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: December 25, 2012
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Atsufumi Kobayashi, Tomoyuki Suzuki, Takashi Matsuda
  • Publication number: 20120303308
    Abstract: 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(xi) of the calculated values is obtained, and the maximum value L(xi) is obtained as a baseline value at the X coordinate of the reference point.
    Type: Application
    Filed: August 2, 2012
    Publication date: November 29, 2012
    Inventors: Takeo Soejima, Yusei Ohkubo
  • Patent number: 8315822
    Abstract: A force measurement system having inertial compensation includes a force measurement assembly with at least one accelerometer configured to measure the acceleration thereof. According to one aspect of the invention, the force measurement system additionally includes at least one angular velocity sensor configured to measure the angular velocity of the force measurement assembly. According to another aspect of the invention, the force measurement system additionally includes a data processing device with a computer-readable medium loaded thereon that is configured to execute a calibration procedure for determining the inertial parameters of the force measurement assembly by utilizing the measured acceleration of the force measurement assembly while the force measurement assembly is subjected to a plurality of applied linear and/or rotational motion profiles. According to still another aspect of the invention, the at least one accelerometer is disposed on the force transducer.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: November 20, 2012
    Assignee: Bertec Corporation
    Inventors: Necip Berme, Hasan Cenk Guler
  • Patent number: 8315823
    Abstract: According to one aspect of the invention, a force measurement system includes a force measurement assembly, a motion base configured to displace the force measurement assembly, and an inertial compensation system configured to determine the inertial forces and/or moments resulting from the displacement of the force measurement assembly by the motion base. According to another aspect of the invention, a method for accurately determining the forces and/or moments applied to a surface of a force measurement device by a subject disposed thereon is disclosed, which includes the step of determining, by using an inertial compensation system, the inertial forces and/or moments resulting from the displacement of a force measurement assembly by a motion base. According to still another aspect of the invention, a force and/or motion measurement system having inertial compensation includes a motion acquisition system having a plurality of motion sensing devices configured to capture a subject's movement.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: November 20, 2012
    Assignee: Bertec Corporation
    Inventors: Necip Berme, Hasan Cenk Guler
  • Patent number: 8306767
    Abstract: 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.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: November 6, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventor: Toshiyuki Yamashita
  • Publication number: 20120278024
    Abstract: 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.
    Type: Application
    Filed: February 8, 2012
    Publication date: November 1, 2012
    Inventors: Hyong Euk Lee, Bho Ram Lee, Sang Hyun Kim, Won Chul Bang, Chan Gook Park, Chul Woo Kang, Chang Ho Kang
  • Publication number: 20120278023
    Abstract: 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.
    Type: Application
    Filed: October 7, 2011
    Publication date: November 1, 2012
    Inventor: Zheng Han
  • Patent number: 8239157
    Abstract: A method and apparatus is disclosed that guides a user through a sequence of steps that will allow the user to complete a predefined task using the flow meter. The steps include: selecting a predefined task, displaying a sequence of steps that directs the user through a process for using the Coriolis flow meter to complete the predefined task, and operating the Coriolis flow meter in response to the sequence of steps to complete the predefined task.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: August 7, 2012
    Assignee: Micro Motion, Inc.
    Inventors: Craig B McAnally, Andrew T Patten, Charles P Stack, Jeffrey S Walker, Neal B Gronlie
  • Publication number: 20120197572
    Abstract: 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.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 2, 2012
    Applicant: Rohde & Schwars GmbH & Co. KG
    Inventors: Thomas Braunstorfinger, Joachim Danz
  • Publication number: 20120173183
    Abstract: 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.
    Type: Application
    Filed: March 13, 2012
    Publication date: July 5, 2012
    Inventor: James Bornhorst
  • Publication number: 20120150451
    Abstract: Methods and apparatus for determining at least one property of fluids related to oilfield operations may include an optical calculation device for measuring light having interacted with the fluid (e.g., flowing fluids and flames). The flame may be fueled, at least in part, by the stream of fluid from the subsurface well. Methods may include directing interacted light that comprises light having passed through a fluid relating to an oilfield operation to an iris; performing a regression calculation on the interacted light with an optical calculation device responsive to the interacted light incident thereon to produce at least one output light signal; and determining at least one property of the fluid from the at least one output light signal.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 14, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Neal G. Skinner, Michael T. Pelletier
  • Publication number: 20120143036
    Abstract: A representative method for determining a zero baseline value of a channel from a detector device of a nuclear medicine imagining system to allow for correction caused by noise or interference on the detector device includes calculating a first value of a baseline based on a first sample of analog electrical signals from analog-to-digital converters (ADCs) coupled to the detector device; comparing a predetermined value with the first value of the baseline; determining whether there is a small change between the predetermined value and the first value of the baseline; and responsive to determining that the small change exists, adjusting the baseline of the ADCs by a fraction of the small change based on the comparison between the predetermined value and the first value of the baseline.
    Type: Application
    Filed: December 7, 2010
    Publication date: June 7, 2012
    Inventor: Roger E. Arseneau
  • Publication number: 20120136585
    Abstract: A nuclear quadrupole resonance system which senses the stimulated emission from target molecules includes in a calibration step and a stimulated emission response detection step, with the system employing clutter cancellation involving linear regression and the use of cross correlation with a series of known molecular signatures, both increasing the signal-to-noise ratio of the system.
    Type: Application
    Filed: December 1, 2010
    Publication date: May 31, 2012
    Applicant: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: John T. APOSTOLOS, Paul A. ZANK, Judy FENG, Candice L. BRITTAIN
  • Publication number: 20120130666
    Abstract: 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.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 24, 2012
    Inventors: Soo-Young Cho, Bong-Ha Hwang, Min-Young Kim