Of Sensing Device Patents (Class 702/116)
  • Patent number: 7729876
    Abstract: The diagnostic device that detects a failure of a sensor. The sensor includes memory for repeatedly recording pairs of two absolute pressure values, the absolute pressure values being related to absolute pressures in the first and the second impulse lines, respectively. A processor repeatedly computes, from a prescribable number of pairs of the two absolute pressure values, a correlation value representative of the correlation between the two absolute pressure values. The processor can also compare correlation values to at least one correlation threshold value, and generate a diagnostic output depending on the result of the comparison. It is possible to derive the absolute pressure values from one differential pressure measurement and one absolute pressure measurement.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: June 1, 2010
    Assignee: ABB Research Ltd
    Inventors: Raiko Milanovic, Wolfgang Scholz, Andrea Andenna
  • Patent number: 7720625
    Abstract: The invention relates to a method for operating a measuring device, especially a flowmeter. The aim of the invention is to simplify inspection if the sensors have been correctly installed. For this purpose, the installation state is detected by the sensors themselves, i.e. by sensing a corresponding sensor value and comparing it with characteristic data. The result of comparison is electronically evaluated and automatically estimated whether the characteristic data obtained match the comparative data within at least a defined tolerance.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: May 18, 2010
    Assignee: ABB Patent GmbH
    Inventors: Dieter Keese, Harry Plotzki, Frank Buhl, Karl-Heinz Rackebrandt, Andreas Thöne, Jörg Herwig, Rolf Merte, Peter Riegler
  • Patent number: 7720626
    Abstract: A method, apparatus, and computer program product for identifying dissimilarity indices for a structure is presented. A first test signal is sent into a baseline model of the structure. An estimated response signal to the first test signal sent into the baseline model of the structure is received. A second test signal is sent into the structure. A second response single to the second test signal is received. A value is assigned to a model-based dissimilarity index using the first response compared to the second response.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: May 18, 2010
    Assignee: The Boeing Company
    Inventor: V. John Mathews
  • Publication number: 20100106446
    Abstract: Methods for determining an attribute of a substance in a container in response to an access event. The methods include a method for determining an attribute of a substance including activating the sensor in response to an access event and transmitting, in response to the activating, an output of the sensor providing an indication of an attribute of the contents. The methods also include a method having the steps of associating a sensor having an identifier with the container; and receiving the identifier and an output of the sensor providing an indication of the amount of the contents.
    Type: Application
    Filed: October 23, 2008
    Publication date: April 29, 2010
    Applicant: WHIRLPOOL CORPORATION
    Inventors: FARHAD ASHRAFZADEH, ALI R. BUENDIA-GARCIA, RICHARD A. MCCOY, YINGQIN YUAN
  • Patent number: 7698088
    Abstract: In some embodiments, an apparatus includes conductors, and a transmitter including transmitter test circuitry to embed test properties in test pattern signals, and transmit the test pattern signals to the conductors. In some embodiments, an apparatus includes conductors to carry test pattern signals with embedded test properties, and receiver test circuitry to receive the test pattern signals and extract the test properties and determine whether the extracted test properties match expected test properties. Other embodiments are described and claimed.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: April 13, 2010
    Assignee: Silicon Image, Inc.
    Inventors: Chinsong Sul, Heon C. Kim, Gijung Ahn
  • Patent number: 7680620
    Abstract: A device for measuring the dynamic matrix sensitivity of an inertia sensor is provided with a motion generating machine or a vibrating table for inducing a translational or rotary motion, an acceleration measuring unit, an angular velocity measuring unit or angular acceleration measuring unit, an output device for fetching an output from the unit, one or, pre light reflectors, a displacement measuring device for seizing a multidimensional motion by using a laser interferometer radiating light from a plurality of directions to the light reflectors, a data processing unit for processing a data indicating the state of motion and obtained from the displacement measuring unit, and a displaying device to display or a transmitting device to transmit the output of the data processing unit and the output of the acceleration measuring unit, angular velocity measuring unit or angular acceleration measuring unit.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: March 16, 2010
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventor: Akira Umeda
  • Patent number: 7680608
    Abstract: The invention relates to a method of determining a spatial distribution of magnetic particles in an examination area, in which a magnetic field is generated which has a first part-region having a relatively low magnetic field strength and a second part-region having a relatively high magnetic field strength. The position of the two part-regions is changed, as a result of which the magnetization in the examination area changes, and real measured values which depend on the change in magnetization are recorded. A dependence distribution which depends on a spatial distribution of magnetic particles is then determined such that a sum which comprises as summands a) the difference of the real measured values from fictitious measured values which are determined by applying a transfer function to the dependence distribution, and b) the product of a regularization parameter and of a regularization value which is determined by applying the regularization functional to the dependence distribution, is minimized.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: March 16, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Tim Nielsen, Bernhard Gleich, Jurgen Weizenecker
  • Patent number: 7668695
    Abstract: The present invention includes a sensor malfunction determination unit 207 detects the pressure value corresponding to a signal outputted by a pressure sensor 101 capable of measuring the internal pressure of a pneumatic tire 10. When the detected pressure value is decreasing along the time axis, the sensor malfunction determination unit 207 determines that the pressure sensor 101 is not malfunctioning.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: February 23, 2010
    Assignee: Bridgestone Corporation
    Inventors: Hiromitsu Ichikawa, Hiromasa Hada, Takao Kokubu
  • Patent number: 7660690
    Abstract: In the present invention, a method is provided for installing and locating a plurality of sensors distributed on a structure as part of a structural health monitoring system. The method includes verifying the proper installation of the plurality of sensors and determining the location of the plurality of sensors. In one aspect of the present invention, the step of verifying the proper installation further comprises verifying that each of the plurality of sensors are properly coupled to a sensor data collector and verifying that each of the plurality of sensors are installed in a proper location. In another aspect of the present invention, the step of determining the location of the plurality of sensors further comprises determining the positioning of each sensor in reference to fixed structures in the structure.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: February 9, 2010
    Assignee: Honeywell International Inc.
    Inventors: Grant A. Gordon, Joseph Nutaro, Steven R. Thompson
  • Publication number: 20100027743
    Abstract: The invention relates to an apparatus for determining a detector energy weighting function of a detection unit (6). The apparatus comprises a determination unit (21) for determining a spectral response function of the detection unit (6) and a calculation unit (22) for determining the detector energy weighting function by integrating the product of the spectral response function of the detection unit (6) and a given ideal detector energy weighting function.
    Type: Application
    Filed: November 19, 2007
    Publication date: February 4, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N. V.
    Inventors: Klaus Jurgen Engel, Christian Baeumer, Guenter Zeitler, Christoph Herrmann
  • Patent number: 7656303
    Abstract: A gas sensor system includes a gas sensor capable of producing an output signal responsive to the concentration of a specific gas component in measurement gas, a gas concentration determination device that makes electrical connections to the gas sensor and determines the concentration of the specific gas component according to the output signal of the gas sensor, a failure detection device that detects a potential failure in any one of the electrical connections, a sensor temperature determination device that judges whether the gas sensor has been cooled to a predetermined temperature or lower with reference to a sensor temperature parameter and a failure identification device that, when the gas sensor has been cooled to the predetermined temperature or lower, outputs a diagnosis signal to the gas sensor, measures potentials of the electrical connections under the diagnosis signal and identifies in which of the electrical connections the potential failure is occurring based on the measured potentials.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: February 2, 2010
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Yoshinori Inoue, Hiroshi Inagaki, Tomonori Uemura
  • Patent number: 7654126
    Abstract: A method for producing a correlation between a first state of a piezoelectric component (1, 20) comprising a piezoceramic element and a second state of the component comprises the following steps: a) a first group of components respectively in the first state is prepared (101), b) at least one defined characteristic of each component of the first group is determined (102), c) the piezoceramic element of the components of the first group is polarised, and a corresponding component of a second group in the second state is thus created from each component of the first group (103), d) at least one defined characteristic of each component of the second group is determined (104), and e) the correlation is produced by comparing the defined characteristics of each component of the first group with the defined characteristic of the corresponding component of the second group (105).
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: February 2, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Lubitz, Carsten Schuh, Andreas Wolff
  • Publication number: 20100023277
    Abstract: An ion-based triple sensor is disclosed. The ion-based triple sensor may include an ion sensing unit, configured to measure an ionic current intensity, a pressure sensing unit, configured to measure a pressure, and a temperature sensing unit, configured to measure a temperature. The ion-based triple sensor may further include a signal processing unit coupled to the ion sensing unit, the pressure sensing unit and the temperature sensing unit. The signal processing unit may include a filtering component, configured to filter at least one of the ion, pressure and temperature measurements, and a data acquisition component, configured to sample the filtered measurements and communicate the samples to a controller.
    Type: Application
    Filed: September 28, 2009
    Publication date: January 28, 2010
    Applicant: Caterpillar Inc.
    Inventors: Yafeng Liu, Joseph William Furgerson, Jeffrey Ribordy, Dustin John Bequette, Kevin Everett
  • Patent number: 7646308
    Abstract: A system monitors electrical equipment and provides predictive diagnostics therefor. The system includes sensors located at or about the electrical equipment. The sensors sense information pertaining to operation of the electrical equipment. A first processor is located at or about the electrical equipment and receives the sensed information from the sensors as first information. A first transceiver cooperates with the first processor to transmit the first information as transmitted information. A second processor is located remote from the electrical equipment. A second transceiver cooperates with the first transceiver to receive the transmitted information as second information and communicate the same to the second processor. The second processor provides a notification pertaining to an immediate inspection and/or maintenance of the electrical equipment, and set points operatively associated with the sensed information.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: January 12, 2010
    Assignee: Eaton Corporation
    Inventors: Gabriel J. Paoletti, Thomas M. Nine, George M. Herman, Mark T. Stephens, Robert Yanniello
  • Publication number: 20090326840
    Abstract: A method, system and computer program product for generating device fingerprints and authenticating devices uses initial states of internal storage cells after each of a number multiple power cycles for each of a number of device temperatures to generate a device fingerprint. The device fingerprint may include pairs of expected values for each of the internal storage cells and a corresponding probability that the storage cell will assume the expected value. Storage cells that have expected values varying over the multiple temperatures may be excluded from the fingerprint. A device is authenticated by a similarity algorithm that uses a match of the expected values from a known fingerprint with power-up values from an unknown device, weighting the comparisons by the probability for each cell to compute a similarity measure.
    Type: Application
    Filed: June 26, 2008
    Publication date: December 31, 2009
    Applicant: International Business Machines Corporation
    Inventors: Fadi H. Gebara, Joonsoo Kim, Jeremy D. Schaub, Volker Strumpen
  • Patent number: 7634382
    Abstract: A method and diagnostic device are disclosed which can receive process variable values (x(t)) of a process variable of a process medium of a process, and extract and record measurement statistics data from such process variable values, which are measured during a measuring phase. Training statistics data can be extracted and recorded from such process variable values, which are measured during a training phase. The measurement statistics data can be compared with training statistics data recorded before the measurement statistics data. The training statistics data can include a training empirical statistical distribution, which can be a distribution of a function of process variable values, which are measured during a training phase, or a distribution of a function of coefficients Xt(k), which are coefficients of a function of a transform of process variable values (x(t)), which are measured during a training phase.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: December 15, 2009
    Assignee: ABB Research Ltd
    Inventors: Andrea Andenna, Andrea Moroni, Giovanni Invernizzi
  • Publication number: 20090287446
    Abstract: The present invention generally includes an apparatus and method of forming a reference module device that is able to deliver a repeatable and desirable amount of power that does not degrade or change over time. The reference module can be used to help test and calibrate various testing equipment used in the production of a photovoltaic device that may be formed in a solar cell fab. The solar cell fab is generally an arrangement of processing modules and automation equipment that is used to form solar cell devices.
    Type: Application
    Filed: April 22, 2009
    Publication date: November 19, 2009
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Dapeng Wang, Michel R. Frei, Tzay-Fa Su, David Tanner
  • Publication number: 20090259362
    Abstract: A method of generating substitute values for measured values in a control unit by correlating at least two measured values. The method includes first saving at least one value which predefines a relationship between the two measured values. The measured values are measured, during the operation of the control unit, and the predefined relationship value is overwritten in the memory unit by the relationship actually arising during operation on the basis of the measurement. Upon recognition of an error or a failure of the measuring apparatus, which is associated with the measured values, with the aid of the relationship actually arising during operation on the basis of the measurement, a substitute value for the measured values, which were to be measured by the defective measuring apparatus, is then calculated and transmitted to the control unit for further processing.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 15, 2009
    Applicant: ZF Friedrichshafen AG
    Inventor: Stefan Veittinger
  • Patent number: 7603247
    Abstract: A device for detecting force acting on a tire includes a detector provided with respect to vehicle wheels for detecting force acting on a tire and a determining portion for determining a detection abnormality of force acting on the tire by the detector based on at least either the detected value or a temporal changing tendency of the detected value.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: October 13, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Isono, Yasuji Mizutani, Takayuki Yamamoto
  • Patent number: 7596465
    Abstract: Built-in test equipment (BITE) incorporated in a GPS receiver for providing a loop forward test. The loop forward test capability may be combined with a loop backward capability to provide a comprehensive built-in test (BIT) capability for the signal path in a GPS receiver. A code generator generates deterministic test code signals such as C/A code, P code and pseudo M code that are used to modulate one or more radio frequency (RF) carriers to produce RF test signals. The RF test signals are injected into the GPS receiver's RF input. The RF test signal signals are then down-converted and demodulated through an operational signal path of the GPS receiver. The processed test signals may then be compared to the initial test data. A loop backward BITE may also be used to sample the positioning data output by the receiver.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: September 29, 2009
    Assignee: Trimble Navigation Limited
    Inventors: Randall Dale Ristau, Paul Turney
  • Patent number: 7596459
    Abstract: In one aspect, the invention comprises a device for measuring electricity usage, comprising: means for remote disconnection via power line communication; means for detection of electricity theft; means for tamper detection; and means for reverse voltage detection. In another aspect, the invention comprises an apparatus for multi-channel metering of electricity, comprising: (a) a meter head operable to measure electricity usage for a plurality of electricity consumer lines; (b) a transponder operable to transmit data received from the meter head via power line communication to a remotely located computer, and to transmit data received via power line communication from the remotely located computer to the meter head; and (c) a load control module operable to actuate connection and disconnection of each of a plurality of relays, each relay of the plurality of relays corresponding to one of the plurality of electricity consumer lines.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: September 29, 2009
    Assignee: Quadlogic Controls Corporation
    Inventors: Sayre Swarztrauber, Doron Shafrir, Siddharth Malik, Robert Hayward
  • Publication number: 20090177429
    Abstract: An input processing unit of safe digital controller includes units for determining ground when a voltage V from an input terminal is equal to or lower than a ground determination value; for outputting a first specified value regardless of the voltage V during a first given period immediately after the controller starts; for outputting a value based on the voltage V when the voltage V is equal to or higher than the ground fault determination value and equal to or lower than a disconnection determination value after the first given period, outputting a third specified value during a second given period after the first given period when the voltage V is lower than the ground fault determination value, and outputting the first specified value when a state in which the voltage V is lower than the ground fault determination value is maintained for the second given period or longer; and for outputting a second specified value during the second given period when the voltage V is higher than the disconnection determin
    Type: Application
    Filed: June 3, 2008
    Publication date: July 9, 2009
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Makoto ITOI, Kenichi Iwata
  • Patent number: 7555399
    Abstract: A method detects a change in a stream of samples acquired by a sensor. A stream of samples acquired by a sensor over time is stored sequentially in a buffer in which an oldest samples is discarded and a newest sample is stored when the buffer is full, such that the buffer forms a window of samples sliding forward in time. For each new sample, the buffer is partitioned into all possible pairs of contiguous sub-windows of samples including a first sub-window and a second sub-window such that the newest sample is stored in the second sub-window of the pair. A difference is determined between the first and second sub-window of each pair of the contiguous sub-windows of samples, and a maximum difference is assigned as a merit score. A change in the stream of samples is signaled if the merit score is greater than a predetermine threshold. The change can be abrupt or gradual.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: June 30, 2009
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Daniel N. Nikovski, Ankur Jain
  • Publication number: 20090164166
    Abstract: The life of a sensor unit is very strongly dependent on the loading of the sensor unit during use. The life of a sensor unit is generally specified in a number of loading cycles, however, which does not take into consideration the loading of the sensor unit. The invention therefore specifies a method and apparatus for assessing the residual life of a sensor unit which takes into consideration the actual loading of the sensor unit and therefore the residual life of the sensor unit (10) can be estimated more precisely by virtue of a damage factor (S) being determined for the loading of a loading cycle (B) and the loading cycle (B) being weighted therewith.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 25, 2009
    Inventors: Norbert Mayrhofer, Klaus-Christoph Harms, Martin Rzehorska, Rudiger Teichmann
  • Publication number: 20090144011
    Abstract: One-pass sampling is employed within a hierarchically organized structure to efficiently and expeditiously respond to sensor inquires. Identification of relevant sensors and sampling of those sensors is combined and performed in a single pass. Oversampling can also be employed to ensure a target sample size is met where some sensors fail or are otherwise unavailable. Further yet, sensor data can be cached and utilized to hasten processing as well as compensate for occasional sensor unavailability.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Applicant: MICROSOFT CORPORATION
    Inventor: Suman Kumar Nath
  • Patent number: 7539786
    Abstract: A method for simulating the insertion of a data storage medium into or removal of a data storage medium from an input/output station, alternatively referred to as an import/output station. In one application of the invention, a data storage resides in an I/O station slot. A first variable corresponding to this slot is modified to indicate that the slot is actually empty. A command is issued indicating that the I/O station has been accessed, triggering a scan of the slot by an automated robotic accessor. Since the accessor will detect that the slot is, in fact, full, it will report this status to a library manager which will, in turn, update the first variable. The action of updating this variable is reported to associated devices such as a host computer, host application, or other associated device. In this manner, the operation of the library manager and devices receiving status information may be tested without requiring that a physical data storage medium actually be removed and re-inserted.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: May 26, 2009
    Assignee: International Business Machines Corporation
    Inventors: Frank D. Gallo, Jose G. Miranda Gavillan, Khan V. Ngo
  • Publication number: 20090127469
    Abstract: Methods, systems, devices, and computer program products include positioning disposable single-use radiation sensor patches that have adhesive means onto the skin of a patient to evaluate the radiation dose delivered during a treatment session. The sensor patches are configured to be minimally obtrusive and operate without the use of externally extending power chords or lead wires.
    Type: Application
    Filed: January 26, 2009
    Publication date: May 21, 2009
    Inventors: Steven R. Widener, John Carroll
  • Publication number: 20090127464
    Abstract: A flame detector is provided which comprises a housing (1), a test source of electromagnetic radiation (4) and a sensor (7). The source of electromagnetic radiation (4) and the sensor (7) are mounted within the housing (1). The source of electromagnetic radiation (4) is arranged to direct its output onto the sensor (7). The source of electromagnetic radiation (4) is arranged to emit radiation which simulates a flame. In this way, a means is provided within the housing (1) of the flame detector to test the flame detector without the need for an external test source, such as a test fire or a bulky and expensive test torch.
    Type: Application
    Filed: February 17, 2006
    Publication date: May 21, 2009
    Applicant: Thorn Security Limited
    Inventors: Bernard E.H. Laluvein, Timothy A. James
  • Publication number: 20090125252
    Abstract: A device for transmitting measured values having a sensor module including miniaturized components and an evaluation unit, in which the sensor module has connections for different sensors, one or more sensors are connected to the sensor module, and the sensor detect operating states of a centrifugal pump arrangement including a pump and a drive motor as measured values, and in which the sensor module is connected to a power supply and processes the measured values. The sensors (7, 8) which are connected to the sensor module are determined by identification means (13, 14, 15, 16). The sensor module is constructed as a signal transmitter (1) with a standardized output signal (10), with an integrated evaluation unit (2) which has a microcomputer (3), and with a display (4). The evaluation unit (2) processes the measured values from the sensors (7, 8) and displays measured values and/or calculated variables on the display (4).
    Type: Application
    Filed: November 11, 2008
    Publication date: May 14, 2009
    Applicant: KSB Aktiengesellschaft
    Inventors: Marjan Silovic, Daniel Gontermann, Dirk Kollmar, Christoph Keller
  • Patent number: 7524106
    Abstract: There are occasions when an intermittent abnormality occurs in a water temperature sensor that is of a type that does not cause a sudden change in a detection value of the water temperature sensor. The movement of the detection value of the water temperature sensor when this type of abnormality occurs may be, for example, a movement in which the detection value of the water temperature sensor becomes lower even through warm up has been proceeding after engine start up has begun. When this type of movement of the detection value occurs, if the detection value of the water temperature sensor reduces, after engine start up has begun, to a value lower than that when start up began, it is immediately determined based on this fact that an abnormality of the water temperature sensor is occurring.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: April 28, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Norikazu Higashiyama, Koichi Satoya, Koichi Mizutani
  • Patent number: 7523639
    Abstract: A flow meter monitoring system (100) is provided according to an embodiment of the invention. The flow meter monitoring system (100) includes a communication interface (101) configured to communicate with one or more flow meters and receive meter calibration values for a flow meter of the one or more flow meters. The flow meter monitoring system (100) further includes a processing system (102) in communication with the communication interface (101) and configured to receive the meter calibration values from the communication interface and correlate the meter calibration values to known meter calibration values (114) in order to determine the flow meter type.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: April 28, 2009
    Assignee: Micro Motion, Inc.
    Inventor: Paul J. Hays
  • Patent number: 7505874
    Abstract: The present invention relates to a method for establishing a sensor network having multiple sensor nodes, sensor nodes being able to connect to one another to transmit sensor data to a central receiving node, and information, in particular time information, being in stored in every sensor node from other neighboring sensor nodes lying in the reception area of a sensor node, on the basis of which a sensor node determines when to connect to another sensor node, initial information in the sensor node (S2) being formed by information from a mobile installation device (MGW), which is transmitted into a new sensor node (S2) during the installation thereof, the information particularly being provided in the form of a table.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: March 17, 2009
    Assignee: ista International GmbH
    Inventors: Bert Bley, Manfred Gronauer, Bernd Kauffmann, Thorsten Rische
  • Patent number: 7505861
    Abstract: The invention relates to a method for monitoring a measurement device, in particular a flow measurement device, and to a measurement device itself. In order in this case to reliably preclude measurement errors resulting from incorrect installation, the invention proposes that a characteristic variable is calculated from a time series s(t) of the measurement signal of a measurement device and is compared with previously recorded reference values, with this being used as the basis to automatically generate a message as to whether the measurement device has been installed correctly or incorrectly.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: March 17, 2009
    Assignee: ABB Patent GmbH
    Inventors: Frank Buhl, Jorg Herwig, Axel Papenbrock, Peter Riegler, Axel Rossberg, Jens Timmer
  • Patent number: 7502705
    Abstract: A system for identifying a subset of sensors to sample to reduce the frequency of sensor access. The system determines rise times and records values for the sensors in the system. A time criticality of the sensors is determined based on the rise times. The system processes the sensors by first creating sensor subsets based on one or more constraints on the sensors. The system monitors the values of the sensors in a sensor subset and flags a sensor when it makes a determination that, prior to a next scheduled sampling of the sensor subset, the value of a sensor in the monitored sensor subset will exceed a threshold constraint. The system moves those flagged sensors to a second sensor subset which complies with the sensor's constraints.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: March 10, 2009
    Assignee: International Business Machines Corporation
    Inventors: Andreas Bieswanger, Michael S. Floyd, Andrew J. Geissler, Soraya Ghiasi, Hye-Young McCreary, Guillermo J. Silva, Malcolm S. Ware
  • Patent number: 7502704
    Abstract: A method for monitoring the pressure of motor vehicle tires is provided. In the method, a tire pressure value of the tire filling pressure and a tire temperature value are determined. While taking into account the tire temperature value, the determined tire pressure value is compared with a stored nominal value and the comparison result is used to determine whether the motor vehicle tire is at an incorrect tire pressure, in particular, a low tire pressure. If the tire pressure is incorrect when a characteristic change in the tire pressure occurs, the stored nominal value is replaced by a new nominal value, and the comparison result is used to determine the new nominal value of the determined tire pressure value.
    Type: Grant
    Filed: December 11, 2004
    Date of Patent: March 10, 2009
    Assignee: Daimler AG
    Inventors: Joerg Burghardt, Wolfgang Kiesewetter, Jan Kipping, Frank Schlosser
  • Patent number: 7499821
    Abstract: Embodiments of apparatuses, articles, methods, and systems for measuring sensor drift characteristics are generally described herein. In some embodiments, a system having a sensor platform to receive a sensor and measure drift characteristic of the sensor is disclosed. The system may further include a data acquisition device coupled to the sensor platform to receive the measured drift characteristic and to compare them to acceptance criteria in order to determine an acceptability of the sensor. Other embodiments may be described and claimed.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: March 3, 2009
    Assignee: AirAdvice, Inc.
    Inventor: Meindert J. Kleefstra
  • Patent number: 7497137
    Abstract: In a method for monitoring and/or determining the condition of a force-measuring device with at least one housing that has an interior space and with at least one force-measuring cell installed in the interior space of the at least one housing, at least one parameter of the atmospheric climate of the interior space is measured with at least one sensor that is arranged in the interior space of the housing or with at least one sensor that is arranged at the housing, wherein said parameter is of a kind that has an influence on the operating lifetime of the force-measuring cell; and a sensor signal corresponding to the measured parameter of the atmospheric climate of the interior space is transmitted to a computing unit and/or to a data output device.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: March 3, 2009
    Assignee: Mettler-Toledo AG
    Inventors: Jean-Maurice Tellenbach, Daniel Aepli, Helmut Bäumel
  • Patent number: 7487660
    Abstract: A method and a system for monitoring the functional capability of a particle detector connected downstream, in the flow direction, of a particle filter, in which particles occurring upon the regeneration of the particle filter, in particular ions, are detected by the particle detector and the resultant measurement finding are compared with an expected finding. The measurement and evaluation are effected in a control and evaluation unit. The invention enables monitoring of the functional capability of a particle detector that does not interrupt normal operation and thus increases the reliability of the entire system.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: February 10, 2009
    Assignee: Robert Bosch GmbH
    Inventor: Bernd Schumann
  • Patent number: 7484815
    Abstract: To enable a trouble diagnosis of braking-input-side pressure sensors even in a state where a braking input side and a braking output side are interrupted from each other. In a brake device of a vehicle in which a braking input side which generates a liquid pressure by manipulating a brake manipulation portion and a braking output side which supplies the liquid pressure to a brake caliper are made to be communicated with each other or being interrupted from each other by way of a first electromagnetic open/close valve, and the brake device includes a hydraulic modulator which adjusts the liquid pressure of the braking output side by operating an electrically-operated motor, the brake device includes a first pressure sensor and a second pressure sensor for detecting the liquid pressure of the braking input side, and a trouble diagnosis of the pressure sensors is performed in response to detection values of the pressure sensors.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: February 3, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventors: Sumitaka Ogawa, Hideo Takahashi
  • Patent number: 7487059
    Abstract: A method for diagnosing the health of a transducer may include transmitting a signal to a transducer to cause the transducer to transmit a stress wave into an object being monitored, wherein the signal has a predetermined frequency range or bandwidth. The method may also include receiving response data for the transducer and transforming the response data to data representative of an impedance curve of impedance versus frequency for the predetermined frequency range. The method may further include extracting selected parameters from the impedance curve to diagnose the health of the transducer.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: February 3, 2009
    Assignee: The Boeing Company
    Inventors: Christopher L. Davis, Justin D. Kearns, V. John Mathews
  • Patent number: 7472041
    Abstract: Noise discrimination in signals from a plurality of sensors is conducted by enhancing the phase difference in the signals such that off-axis pick-up is suppressed while on-axis pick-up is enhanced. Alternatively, attenuation/expansion are applied to the signals in a phase difference dependent manner, consistent with suppression of off-axis pick-up and on-axis enhancement. Nulls between sensitivity lobes are widened, effectively narrowing the sensitivity lobes and improving directionality and noise discrimination.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: December 30, 2008
    Assignee: Step Communications Corporation
    Inventors: Jon C. Taenzer, Bruce G. Spicer
  • Patent number: 7461535
    Abstract: A system and method for testing and calibrating integrated sensor devices that improves the manufacturing test throughput of the devices. The system includes a tester, a temperature controller, and at least one probe station including a thermal chuck. The chuck can be heated to specified temperatures to achieve variable heating of a wafer, PCB, or pallet disposed thereon. The temperature controller adjusts the temperature of the chuck to a first specified level. The tester performs at least one first measurement of the output offset of each integrated sensor embodied as a die on the wafer, or as a device on the PCB or pallet. Next, the temperature controller adjusts the temperature of the chuck to a second specified level, and the tester performs at least one second measurement of the output offset of each integrated sensor at the second temperature level.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: December 9, 2008
    Assignee: MEMSIC, Inc.
    Inventors: Feiming Huang, Haidong Liu
  • Publication number: 20080300817
    Abstract: A system for identifying a subset of sensors to sample to reduce the frequency of sensor access. The system determines rise times and records values for the sensors in the system. A time criticality of the sensors is determined based on the rise times. The system processes the sensors by first creating sensor subsets based on one or more constraints on the sensors. The system monitors the values of the sensors in a sensor subset and flags a sensor when it makes a determination that, prior to a next scheduled sampling of the sensor subset, the value of a sensor in the monitored sensor subset will exceed a threshold constraint. The system moves those flagged sensors to a second sensor subset which complies with the sensor's constraints.
    Type: Application
    Filed: May 29, 2007
    Publication date: December 4, 2008
    Inventors: Andreas Bieswanger, Michael S. Floyd, Andrew J. Geissler, Soraya Ghiasi, Hye-Young McCreary, Guillermo J. Silva, Malcolm S. Ware
  • Patent number: 7460983
    Abstract: A method and apparatus adapted to calibrate a signal path of a signal analysis system such that loading effects of the system are substantially removed from measurements of a device under test. A signal under test from the device under test is coupled to a test probe in the signal path and used with selectable impedance loads in the test probe to characterize transfer parameters of the device under test. An equalization filter in either the frequency or time domain is computed from the device under test transfer parameters for reducing in signal error attributable to the measurement loading of the device under test.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: December 2, 2008
    Assignee: Tektronix, Inc.
    Inventors: John J. Pickerd, Kan Tan, William A. Hagerup, Rolf P. Anderson, Sharon M. Mc Masters
  • Patent number: 7460009
    Abstract: A light source of testing a sensor, a test apparatus and a method are disclosed. The test apparatus includes a light source, a photo-mask and a sensor bearing area. The light source includes a plurality of light emitting diodes with parallel connection for emitting a test light. The light source is disposed in a photo-mask. The photo-mask has a diffuser interface. The test light is then diffused to the outside of the photo-mask through the diffuser interface. The sensor bearing area is for bearing the sensor. The sensor bearing area is disposed at the outside of the photo-mask and locates at a position to enable the test light to reach. Therefore, the test light emitted by the light source is used to test the sensor.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: December 2, 2008
    Assignee: Capella Microsystems Corp.
    Inventors: Koon Wing Tsang, Chih-Cheng Chien
  • Patent number: 7458246
    Abstract: The invention relates to a method for functionally testing a filling level sensor which measures the filling level of a liquid in a tank, in which method a change in filling level that is measured by the filling level sensor is compared with a calculated change in filling level. According to the invention, the calculated change in filling level is determined from a measured change in temperature of the liquid.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: December 2, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventors: Oliver Grunwald, Matthias Wiese
  • Patent number: 7451002
    Abstract: A system and method for servicing a medical device, which provides for generation of a transfer function that correlates historical machine data with the health of the medical device. The transfer function may be validated and stored. The transfer function is automatically updated based on current machine data.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: November 11, 2008
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventor: Suresh Kumar Choubey
  • Patent number: 7434450
    Abstract: An air-fuel ratio sensor that outputs a sensor signal used for the feedback control of an air-fuel ratio is provided. It is determined whether an element crack is present by applying a reverse voltage to the air-fuel ratio sensor. The value of the sensor signal output from the air-fuel ratio sensor is corrected during a time period “A”. The time period “A” consists of a reverse-voltage application time period in which the reverse voltage is applied, and a return time period “T” after application of the reverse voltage ends. The return time period “T” is set based on sensor impedance correlated with the internal resistance of the air-fuel ratio sensor. The return time period “T” decreases as the sensor impedance decreases.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: October 14, 2008
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Tashiro, Yasushi Iwazaki, Masanobu Kanamaru, Hiroshi Sawada, Masaya Kawaji, Takashi Matsui
  • Publication number: 20080219520
    Abstract: State data in a sensor device is generated based on data that defines sensor operating states. The state data is monitored to determine if the sensor device is operating in a predetermined operating state.
    Type: Application
    Filed: March 6, 2007
    Publication date: September 11, 2008
    Applicant: ATMEL CORPORATION
    Inventor: Jean-Francois Mainguet
  • Patent number: 7421343
    Abstract: Systems and methods for reducing vibration-induced bias errors in inertial sensors are disclosed. A system for reducing bias errors in an inertial sensor operating within an environment may include a vibration detector for sensing vibration changes within the environment proximate to the inertial sensor, and a Kalman filter for computing an estimate of the navigational error produced by the inertial sensor due to a vibration-induced bias shift detected by the vibration detector. The vibration detector can be configured to measure an accelerometer output of the inertial sensor over a Kalman filter cycle, and then use the standard deviation of such output to obtain a statistical measure of the vibration within the environment. In some embodiments, the inertial sensor may include an inertial measurement unit (IMU) connected to an error compensation unit and strapdown navigator, each of which can be fed navigation corrections determined by the Kalman filter.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: September 2, 2008
    Assignee: Honeywell International Inc.
    Inventor: Wesley J. Hawkinson