Fuzzy Logic Patents (Class 706/900)
  • Patent number: 11507807
    Abstract: An audio signal processing device includes a neural network circuit that includes an input layer including input units, an intermediate layer, and an output layer including output units, an input section that executes simultaneous inputting of, at each of unit time intervals, each of pieces of unit data of consecutive sampling units in an input signal data string generated through sampling based on an audio signal string into each of the input units on a one-to-one basis, one of the pieces of unit data input into one of the input units at one of the unit time intervals being input into another of the input units at another of the unit time intervals in the simultaneous inputting at each of the unit time intervals, and an output section that outputs, in accordance with the simultaneous inputting over a plurality of the unit time intervals that are consecutive, a computation result at each of the unit time intervals, the computation result being based on pieces of data output from the output units at each of th
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: November 22, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Ryoji Suzuki
  • Patent number: 11485372
    Abstract: Disclosed herein is an apparatus for controlling standalone-type rear wheel steering (RWS), which includes a vehicle speed detection unit for detecting a vehicle speed by communicating with a sensor installed in a vehicle or an Electronic Control Unit (ECU); a steering angle and steering angular velocity detection unit for detecting steering angles and steering angular velocities of front and rear wheels by communicating with a sensor installed in the vehicle or the ECU; a master cylinder pressure detection unit for detecting a master cylinder pressure by communicating with a sensor installed in the vehicle or the ECU; and a controller for determining braking or turning of the vehicle using the information detected using the sensors or received from the ECU, calculating the amount of toe-in when the vehicle is braking or calculating a rear wheel steering angle when the vehicle is turning, and controlling the RWS based thereon.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: November 1, 2022
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Moon Cheon Choi
  • Patent number: 11485366
    Abstract: A method is disclosed for operating a motor vehicle, wherein a control device determines a first index value from vital physiological data received from a sensor device at a first point in time. The control device generates a first actuator signal describing the activation of first actuator function, to be carried out by a first actuator that is selected based on the first index value. At a second point in time, the sensor device records additional vital physiological data and identifies a second index value. Both index values, each describing a physiological state of the user, are compared, and the result is used to determine whether the second index value meets an efficacy criterion that describes a predetermined degree of improvement in the physiological state brought about by the activated actuator function. If the second index value meets the efficacy criterion, the first actuator function is activated as soon as an index value is identified that describes the same physiological state.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: November 1, 2022
    Assignee: Audi AG
    Inventor: Torsten Schön
  • Patent number: 11465605
    Abstract: According to the present disclosure, a steering system and method for a machine includes a vehicle control system configured to command steering of the machine, and a steering sensor in communication with the vehicle control system. The steering sensor is configured to detect a position of a steering actuator of the machine. The vehicle control system is configured to detect an acceleration rate of the machine and to command steering of the machine based at least in part on the position of the steering actuator and the acceleration rate of the machine.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: October 11, 2022
    Assignee: Danfoss Power Solutions, Inc.
    Inventor: Caleb Van De Stroet
  • Patent number: 11449016
    Abstract: An action control method and apparatus related to the field of artificial intelligence, where the method includes obtaining states of N dimensions of an artificial intelligence device, obtaining a plurality of discrete decisions based on an active fuzzy subset and a control model that are of a state of each of the N dimensions, where an active fuzzy subset of a state is a fuzzy subset whose membership degree of the state is not zero, the membership degree is used to indicate a degree that the state belongs to the fuzzy subset, performing, based on a membership degree between a state and an active fuzzy subset that are of each dimension, weighted summation on the plurality of discrete decisions, to obtain a continuous decision, and controlling, based on the continuous decision, the artificial intelligence device to execute a corresponding action.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: September 20, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jun Qian, Xinyu Wang, Chen Chen
  • Patent number: 11435946
    Abstract: Systems, methods and apparatus of intelligent wear-leveling with reduced write-amplification for data storage devices configured on autonomous vehicles. For example, a data storage device of a vehicle includes: storage media components; a controller configured to store data into and retrieve data from the storage media components according to commands received in the data storage device; an address map configured to map between: logical addresses specified in the commands received in the data storage device, and physical addresses of memory cells in the storage media components; and an artificial neural network configured to receive, as input and as a function of time, operating parameters indicative a data access pattern, and generate, based on the input, a prediction to determine an optimized operation for wear leveling among memory cells in the data storage device. The controller is configured to perform the optimized operation for wear leveling based on the prediction.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: September 6, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Robert Richard Noel Bielby, Poorna Kale
  • Patent number: 11422199
    Abstract: A used battery is discharged for a short time from a first Open Circuit Voltage (OCV1) to a second OCV2 and the discharge current ?Q measured. OCV1 is input to a calibration curve model to obtain a first modeled State of Charge (SOC1) value, and OCV2 is input to the calibration curve model to obtain a second modeled SOC2 value. The State of Health (SOH) is calculated as ?Q/[Qnew×(SOC1?SOC2)], where Qnew is the battery capacity when new. The used battery is sorted for reuse or disposal based on the SOH value. The calibration curve model is obtained by Artificial Intelligence (AI) modeling of OCV, SOC datapoints from fully charging and discharging used batteries. Only OCV values within a target region having a low first derivative of SOC as a function of OCV are modeled, and OCV1 and OCV2 are within this target region.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: August 23, 2022
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Minjie Xu, Yaofeng Sun
  • Patent number: 10984367
    Abstract: Systems and techniques for predictive data analytics are described. In a method for selecting a predictive model for a prediction problem, the suitabilities of predictive modeling procedures for the prediction problem may be determined based on characteristics of the prediction problem and/or on attributes of the respective modeling procedures. A subset of the predictive modeling procedures may be selected based on the determined suitabilities of the selected modeling procedures for the prediction problem. A resource allocation schedule allocating computational resources for execution of the selected modeling procedures may be generated, based on the determined suitabilities of the selected modeling procedures for the prediction problem. Results of the execution of the selected modeling procedures in accordance with the resource allocation schedule may be obtained. A predictive model for the prediction problem may be selected based on those results.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: April 20, 2021
    Assignee: DataRobot, Inc.
    Inventors: Jeremy Achin, Thomas DeGodoy, Timothy Owen, Xavier Conort
  • Patent number: 10643593
    Abstract: Sequence predictors may be used to predict one or more entries in a musical sequence. The predicted entries in the musical sequence enable a virtual musician to continue playing a musical score based on the predicted entries when the occurrence of latency causes a first computing system hosting a first virtual musician to not receive entries or timing information for entries being performed in the musical sequence by a second computing system hosting a second virtual musician. The sequence predictors may be generated using a machine learning model generation system that uses historical performances of musical scores to generate the sequence predictor. Alternatively, or in addition, earlier portions of a musical score may be used to train the model generation system to obtain a prediction model that can predict later portions of the musical score.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: May 5, 2020
    Assignee: Electronic Arts Inc.
    Inventors: John Kolen, Harold Henry Chaput, Navid Aghdaie, Kazi Atif-Uz Zaman, Kenneth Alan Moss
  • Patent number: 9043627
    Abstract: Methods and apparatuses to manage working states of a data processing system. At least one embodiment of the present invention includes a data processing system with one or more sensors (e.g., physical sensors such as tachometer and thermistors, and logical sensors such as CPU load) for fine grain control of one or more components (e.g., processor, fan, hard drive, optical drive) of the system for working conditions that balance various goals (e.g., user preferences, performance, power consumption, thermal constraints, acoustic noise). In one example, the clock frequency and core voltage for a processor are actively managed to balance performance and power consumption (heat generation) without a significant latency. In one example, the speed of a cooling fan is actively managed to balance cooling effort and noise (and/or power consumption).
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: May 26, 2015
    Assignee: Apple Inc.
    Inventors: Michael Culbert, Keith Alan Cox, Brian Howard, Josh de Cesare, Richard Charles Williams, Dave Robbins Falkenburg, Daisie Iris Huang, David Radcliffe
  • Patent number: 8893084
    Abstract: A method and apparatus to record one or more customization messages in a storage are described. Each customization message may include one or more predicates specifying applicability of the customization message for a plurality of objects. An operation on the objects may be performed to generate a configuration of a device in response to receiving an event. The configuration may include the objects. Each customization message may be selectively applied to the objects in the configuration to customize the configuration. An object may be updated via the customization message if the predicates match the object in the configuration. The device may be configured via the customized configuration.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: November 18, 2014
    Assignee: Apple Inc.
    Inventors: Christopher T. Parker, Andrew M. Matuschak, Marian E. Goldeen
  • Patent number: 8577566
    Abstract: A driving instability determination device is provided to improve the precision in detecting the driving instability. The driving state determination section determines whether the state is a prescribed driving state by determining whether the information of the operation state of the driving operation unit and the vehicle state as the running state data is disturbed. Based on the running state data for detecting the unstable state of the driver, the running state distribution computing section excludes the running state data when the state is determined to be the prescribed driving state, and the running state distribution computing section computes the first and second running state distributions in different time ranges. The driving instability determination section determines the instability of the driving from the difference between the two computed running state distributions.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: November 5, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Takayuki Kondoh
  • Patent number: 8260484
    Abstract: To perform updating of maximum values and minimum values of measurement data with a simple procedure without incurring an increase in the computational load of an arithmetic processing element such as a microcomputer. When processing is started, a most recent maximum value stored in a nonvolatile storage element is written to a maximum value-use variable Xmax and a positive maximum value is written to a minimum value-use variable Xmin. Each time temperature data is acquired, a value of acquired data Xk and a most recent minimum value Xmin are compared and the smaller value is set as a new minimum value Xmin. Each time updating of this minimum value is repeated a predetermined number of times of processing Ns, the minimum value Xmin at that point in time and the maximum value Xmax are compared and the larger value is set as a new maximum value Xmax.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: September 4, 2012
    Assignee: Bosch Corporation
    Inventor: Hiroshi Yoshikawa
  • Patent number: 8260486
    Abstract: A method for monitoring the sensors in a vehicle control system. The method includes identifying a plurality of potential faults, identifying a plurality of measured values, and identifying a plurality of estimated values based on models in the control system. The method further includes identifying a plurality of residual error values as the difference between the estimated values and the measured values. The method also defines a plurality of fuzzy logic membership functions for each residual error value. The fuzzy logic membership functions are adaptive in that they change depending on the vehicle operating region, i.e., the non-linearity level of the vehicle, and the vehicle operating conditions, i.e., steady state verses transients. A degree of membership value is determined for each residual error value based on the membership functions. The degree of membership values are then analyzed in a fuzzy logic reasoning system to determine whether a potential fault exists.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: September 4, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Mutasim A. Salman, Pierre-Francois D. Quet
  • Patent number: 8237386
    Abstract: Methods and apparatuses to manage working states of a data processing system. At least one embodiment of the present invention includes a data processing system with one or more sensors (e.g., physical sensors such as tachometer and thermistors, and logical sensors such as CPU load) for fine grain control of one or more components (e.g., processor, fan, hard drive, optical drive) of the system for working conditions that balance various goals (e.g., user preferences, performance, power consumption, thermal constraints, acoustic noise). In one example, the clock frequency and core voltage for a processor are actively managed to balance performance and power consumption (heat generation) without a significant latency. In one example, the speed of a cooling fan is actively managed to balance cooling effort and noise (and/or power consumption).
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: August 7, 2012
    Assignee: Apple Inc.
    Inventors: Michael Culbert, Keith Alan Cox, Brian Howard, Josh de Cesare, Richard Charles Williams, Dave Robbins Falkenburg, Daisie Iris Huang, Dave Radcliffe
  • Patent number: 8195595
    Abstract: A method, system, and computer program product for predicting the functional availability of a complex system is provided. Parameters of the complex system are converted from a plurality of binary values to at least one prognostic vector. At least a portion of a binary input expression is converted into an equivalent fuzzy output expression, the fuzzy output expression operable on the at least one prognostic vector.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: June 5, 2012
    Assignee: Honeywell International Inc.
    Inventors: Timothy J. Felke, George D. Hadden, David M. Kolbet, Randy Magnuson
  • Patent number: 8195345
    Abstract: The method for generating an integrated guidance law for aerodynamic missiles uses a strength Pareto evolutionary algorithm (SPEA)-based approach for generating an integrated fuzzy guidance law, which includes three separate fuzzy controllers. Each of these fuzzy controllers is activated in a unique region of missile interception. The distribution of membership functions and the associated rules are obtained by solving a nonlinear constrained multi-objective optimization problem in which final time, energy consumption, and miss distance are treated as competing objectives. A Tabu search is utilized to build a library of initial feasible solutions for the multi-objective optimization algorithm. Additionally, a hierarchical clustering technique is utilized to provide the decision maker with a representative and manageable Pareto-optimal set without destroying the characteristics of the trade-off front. A fuzzy-based system is employed to extract the best compromise solution over the trade-off curve.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: June 5, 2012
    Assignee: King Fahd University of Petroleum & Minerals
    Inventors: Hanafy M. Omar, Mohammad A. Abido
  • Patent number: 7933740
    Abstract: Arrangements and methods for performing structural clustering between different time series. Time series data relating to a plurality of time series is accepted, structural features relating to the time series data are ascertained, and at least one distance between different time series via employing the structural features is determined. The different time series may be partitioned into clusters based on the at least one distance, and/or the k closest matches to a given time series query based on the at least one distance may be returned.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: April 26, 2011
    Assignee: International Business Machines Corporation
    Inventors: Vittorio Castelli, Michail Vlachos, Philip S. Yu
  • Patent number: 7890294
    Abstract: Arrangements are provided for performing structural clustering between different time series. Time series data relating to a plurality of time series is accepted, structural features relating to the time series data are ascertained, and at least one distance between different time series via employing the structural features is determined. The different time series may be partitioned into clusters based on the at least one distance, and/or the k closest matches to a given time series query based on the at least one distance may be returned.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: February 15, 2011
    Assignee: International Business Machines Corporation
    Inventors: Vittorio Castelli, Michail Vlachos, Philip S. Yu
  • Patent number: 7728254
    Abstract: A method for controlling the quality of an industrial process, of the type that comprises the steps of: providing one or more reference signals for the industrial process; acquiring one or more real signals that are indicative of the quality of said industrial process; and comparing said one or more reference signals with said one or more real signals in order to identify defects in said industrial process.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: June 1, 2010
    Assignee: CRF Societa Consortile per Azioni
    Inventors: Giuseppe D'Angelo, Giorgio Pasquettaz, Andrea Terreno
  • Patent number: 7697004
    Abstract: A computer implemented method of generating behavior of a graphics character within an environment including a selected graphics character and one or more graphics elements, the method comprising: generating an image of the environment from a perspective of the selected graphics character; processing the image using an artificial intelligence engine with one or more layers to determine an activation value for the graphics character wherein at least one of the layers is a fuzzy processing layer, and generating the behavior of the graphics character based on the activation value.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: April 13, 2010
    Inventor: Stephen John Regelous
  • Patent number: 7680890
    Abstract: Systems and methods for classifying e-mail messages as spam by combining outputs of a plurality of spam classifiers or classification tools using a fuzzy logic voting algorithm or formula are provided. According to one embodiment, a first classification value associated with an e-mail message and a second classification value associated with the e-mail message are received. The first classification value and the second classification value being indicative of whether the e-mail message is spam. Then, a single, aggregated classification value for the e-mail message is generated by combining the first classification value and the second classification value using a fuzzy logic-based voting mechanism.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: March 16, 2010
    Inventor: Wei Lin
  • Patent number: 7584204
    Abstract: An exemplary computer-implementable method includes providing a trigger that executes a script upon receipt of change information for changing reference information or an instruction associated with change information for changing reference information, in response to execution of the script, allocating memory for processing the change information and based on the processing of the change information, building an index associated with a fuzzy lookup service. Various other exemplary methods, devices, systems, etc., are also disclosed.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: September 1, 2009
    Assignee: Microsoft Corporation
    Inventors: Rahul Kapoor, Theodore Vassilakis
  • Patent number: 7499891
    Abstract: The invention concerns heuristic algorithms for the classification of Objects. A first learning algorithm comprises a genetic algorithm that is used to abstract a data stream associated with each Object and a pattern recognition algorithm that is used to classify the Objects and measure the fitness of the chromosomes of the genetic algorithm. The learning algorithm is applied to a training data set. The learning algorithm generates a classifying algorithm, which is used to classify or categorize unknown Objects. The invention is useful in the areas of classifying texts and medical samples, predicting the behavior of one financial market based on price changes in others and in monitoring the state of complex process facilities to detect impending failures.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: March 3, 2009
    Assignee: Correlogic Systems, Inc.
    Inventor: Ben Hitt
  • Patent number: 7448230
    Abstract: Method for controlling the production of one or more liquid products produced by one or more plants, that can be an air separation plant, that has a liquid storage capacity and that consumes electrical power. Linguistic values related to current liquid inventory, a rate of change of liquid inventory, projected demand requirements and projected unit power costs are inputted into a expert system controller having one or more rule sets that apply such input linguistic values to produce output linguistic values that are converted back to an output numerical value of a forecasted differential production rate to be applied during a forecast period. The output numerical value of differential production is added to the current production rate of the plants to obtain a new production rate which is applied during the forecast period.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: November 11, 2008
    Assignee: Praxair Technology, Inc.
    Inventors: William Randy Esposito, Lawrence Megan
  • Patent number: 7369961
    Abstract: Arrangements and methods for performing structural clustering between different time series. Time series data relating to a plurality of time series is accepted, structural features relating to the time series data are ascertained, and at least one distance between different time series via employing the structural features is determined. The different time series may be partitioned into clusters based on the at least one distance, and/or the k closest matches to a given time series query based on the at least one distance may be returned.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: May 6, 2008
    Assignee: International Business Machines Corporation
    Inventors: Vittorio Castelli, Michail Vlachos, Philip S. Yu
  • Patent number: 7369976
    Abstract: A design of a tire can be facilitated. An optimization apparatus 30 inputs known design parameters of the shape, structure, and pattern of a tire, and performances thereof by an experimental data input unit 40 and learns, as a conversion system of a neural network, a correlation between design parameters of the shape, structure, and pattern of the tire, and performances thereof. Ranges which constrain performances of the tire and design parameters of the shape, structure, and pattern of the tire, which are to be optimized, are inputted in an optimization item input unit 42, and the performances of the tire are predicted in an optimization calculation unit 34 from the design parameters of the shape, structure, and pattern of the tire by using the optimization item and models of the calculation unit 32, and an objective function is optimized until the objective function which is the performances of the tire is converged.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: May 6, 2008
    Assignee: Bridgestone Corporation
    Inventor: Yukio Nakajima
  • Patent number: 7366582
    Abstract: The invention is a method for controlling an electrolytic process and plant, utilizing history data collected in the process as well as mathematical and heuristic models created on the basis of empirical knowledge, and by means of said models, there are defined indexes based on real-time process measurement parameters. The method makes use of real-time cell voltage measurements. On the basis of the obtained real-time indexes, there is achieved a correctly focused process control action at the correct point of time.
    Type: Grant
    Filed: November 26, 2004
    Date of Patent: April 29, 2008
    Assignee: Outotec Oyj
    Inventors: Ari Rantala, Henri Virtanen
  • Patent number: 7353788
    Abstract: A method of controlling a valve of a cam phaser of an internal combustion engine includes determining a delta duty cycle from a position error and a rate of change of error (error dot). A fuzzy gain value is calculated from the delta duty cycle and a correction term. A duty cycle is calculated from an integral gain value and the fuzzy gain value. The duty cycle is then used to control the valve of the cam phaser.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: April 8, 2008
    Assignee: GM Global Technology Operations, Inc.
    Inventor: Jerry William Kortge
  • Patent number: 7289857
    Abstract: Data from a monitoring system is analyzed for monitoring characteristics of a dynamic system. Characteristic data in respect of a dynamic system is monitored and provided with at least one known normal state. Characteristic data is received from a monitoring system and confirmation information from an operator when the dynamic system is in a known normal state. A normality model is derived including comprising data indicative of known normal states in response to received characteristic data and confirmation information. Future characteristic data is predicted from the normality model a difference function is provided indicating an acceptable difference between predicted and received characteristic data. Predicted characteristic data is compared with received characteristic data in conjunction with the difference function and an abnormality signal is produced if the difference exceeds the difference function.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: October 30, 2007
    Assignee: British Telecommunications public limited company
    Inventors: Detlef D Nauck, Behnam Azvine, Martin Spott
  • Patent number: 7269504
    Abstract: System and method for guiding a driver of a vehicle (20) from a starting point to a destination point using an assignment of levels of urgency of navigation cues. The system comprises a navigation unit (38), a controller (22) and a user interface (42). The navigation unit (38) is capable of selecting a route between the starting point and the destination point. The navigation unit (38) is further capable of generating a plurality of navigation cues to guide the driver along the selected route. The controller (22) is connected to the navigation unit (38) and receives navigation cues. The controller (22) has an urgency calculator (40) that is capable of assigning a level of urgency to the navigation cues. The controller (22) may also have a workload manager (60) that is capable of classifying an activity state of the driver as well as updating the level of urgency of the navigation cue. The user interface (42) presents the navigation cues based on the level of urgency of the navigation cues.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: September 11, 2007
    Assignee: Motorola, Inc.
    Inventors: Judith Lee Gardner, Walton Fehr
  • Patent number: 7249470
    Abstract: Method for controlling the production of one or more liquid products produced by one or more plants, that can be an air separation plant, that has a liquid storage capacity and that consumes electrical power. Linguistic values related to current liquid inventory, a rate of change of liquid inventory, projected demand requirements and projected unit power costs are inputted into a expert system controller having one or more rule sets that apply such input linguistic values to produce output linguistic values that are converted back to an output numerical value of a forecasted differential production rate to be applied during a forecast period. The output numerical value of differential production is added to the current production rate of the plants to obtain a new production rate which is applied during the forecast period.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: July 31, 2007
    Assignee: Praxair Technology, Inc.
    Inventors: William Randy Esposito, Lawrence Megan
  • Patent number: 7240038
    Abstract: The invention concerns heuristic algorithms for the classification of Objects. A first learning algorithm comprises a genetic algorithm that is used to abstract a data stream associated with each Object and a pattern recognition algorithm that is used to classify the Objects and measure the fitness of the chromosomes of the genetic algorithm. The learning algorithm is applied to a training data set. The learning algorithm generates a classifying algorithm, which is used to classify or categorize unknown Objects. The invention is useful in the areas of classifying texts and medical samples, predicting the behavior of one financial market based on price changes in others and in monitoring the state of complex process facilities to detect impending failures.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: July 3, 2007
    Assignee: Correlogic Systems, Inc.
    Inventor: Ben Hitt
  • Patent number: 7072871
    Abstract: A system for determining the state-of-health of batteries has an adaptive component. The system tests a battery by measuring a number of electrochemical parameters and using fuzzy logic to compute a state-of-health for the battery. The fuzzy logic computations are based upon membership functions which are preferably triangular. The membership functions may be stored in a matrix. The adaptive component adapts the system for use with new models of battery by obtaining a reliable measurement of SoH for a number of calibration batteries. Electrochemical parameters of the calibration batteries are measured. The adaptive component modifies a prototype matrix selected to match the chemistry type of the calibration batteries by scaling, translating and flexing its membership functions to achieve a matrix which specifies membership functions suitable for assessing state-of-health of the new model of battery.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: July 4, 2006
    Assignee: Cadex Electronics Inc.
    Inventor: Jörn Tinnemeyer
  • Patent number: 7035836
    Abstract: A method for controlling a vehicle semi-active suspension system comprising at least one suspension, providing for: detecting vehicle dynamic quantities during the vehicle ride; using the detected dynamic quantities, determining an index of ride comfort and an index of roadholding; applying a weight factor to the index of ride comfort and to the index of roadholding and, based on a Sky Hook control model, determining a target damping force characteristics for the at least one suspension of the suspension system; controlling the at least one suspension to put the respective damping force characteristics in accordance with the calculated target damping force characteristics. The weight factor is calculated dynamically during the vehicle ride, by means of a fuzzy calculation on the detected vehicle dynamic quantities.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: April 25, 2006
    Assignee: STMicroelectronics S.r.l.
    Inventors: Riccardo Caponetto, Olga Diamante, Antonino Risitano, Giovanna Fargione, Domenico Tringali
  • Patent number: 7035833
    Abstract: A system includes a sensor section which receives fuzzy information inputs X containing a plurality of components and converts the plurality of components into a plurality of measurable input physical quantities, a converter which receives a plurality of input physical quantities and converts the input physical quantities into a plurality of pulses having pulse widths corresponding to the magnitudes thereof, and a feature extraction section (NF) which receives a plurality of pulses, selects the plurality of pulses by using a set pulse width as a reference, and extracts feature information items y0, y1, y2, . . . which express the features of the fuzzy information inputs X from the fuzzy information inputs X according to the number of selected pulses.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: April 25, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Haruki Toda
  • Patent number: 6957153
    Abstract: A method of controlling production of a gaseous product produced by one or more production plants such as an air separation plant, having a control system to vary production of the gaseous product. The gaseous product is consumed by a customer in accordance with a varying demand pattern. A storage capacity for the gaseous product which may be the pipeline itself or a gaseous receiver tank is provided. Control is exercised by a fuzzy logic program that utilizes the average rate of change of customer demand and storage capacity pressure to produce control data to vary the production rate of the plant.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: October 18, 2005
    Assignee: Praxair Technology, Inc.
    Inventor: William R. Esposito, Jr.
  • Patent number: 6869538
    Abstract: A method, system and apparatus for performing peritoneal dialysis are provided. To this end, in part, a method of controlling a medical fluid heater is provided. The method includes the steps of determining a first heater control output based on a number of measured inputs for the heater and at least one mathematical relationship between at least two of the measured inputs, determining a second heater control output based on at least one fuzzy logic membership function and at least one fuzzy logic rule, and determining a third heater control output based on the first and second outputs and using the third heater control output to control the heater.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: March 22, 2005
    Assignee: Baxter International, Inc.
    Inventors: Alex Anping Yu, Peter Hopping
  • Patent number: 6860845
    Abstract: A system for separating a multi phase mixture into a first liquid phase component, a second liquid phase component and a solid phase component includes a three phase centrifuge and a control system for the centrifuge. The control system includes a fuzzy soft sensor programmed with fuzzy logic rules and a feed forward controller in signal communication with the fuzzy soft sensor. The feed forward controller is configured to adjust a feed rate and a feed temperature of the mixture based on the rules, the cold feed temperature, the percent change of water in the mixture, and the percent change of solids in the mixture. The system also includes a feedback controller configured to adjust the feed rate and the feed temperature of the mixture based on the rules, and the basic water and solid (BS&W) content of the first liquid phase component.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: March 1, 2005
    Inventors: Neal J. Miller, William Jerry Parkinson, Ronald E. Smith
  • Patent number: 6772134
    Abstract: Control apparatus for a horizontal boring tool is described which drives a boring lance via boring rods. The tool includes an input interface for receiving actual values of controlled variables of the horizontal boring tool, and an output unit for issuing control signals for controlling the horizontal boring tool. Between the input interface and the output unit is provided a fuzzy control unit which determines the control signals for activation of the horizontal boring tool from the actual values of the controlled variables and the desired values for the controlled variables by fuzzy logic while taking into account heuristic process values. The control apparatus permits automatic operation of the horizontal boring tool with good course steering and high precision.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: August 3, 2004
    Assignee: Fraunhofer Gesellschaft zur Forderung der angewandten Forschung, e.V.
    Inventors: Andreas Jacubasch, Helge Bjorn Kuntze, Hans-Joachim Bayer
  • Patent number: 6757569
    Abstract: A filtering process is adapted for eliminating the need of prediscretizing a continuous-time differential model into a discrete-time difference model. It provides a universal robust solution to the most general formulation, in the sense that the system dynamics are described by nonlinear continuous-time differential equations, and the nonlinear measurements are taken at intermittent discrete times randomly spaced. The filtering process includes the procedures of validating the measurement using fuzzy logic, and incorporating factorized forward filtering and backward smoothing to guarantee numerical stability. It provides users a reliable and convenient solution to extracting internal dynamic system state estimates from noisy measurements, with wider applications, better accuracy, better stability, easier design, and easier implementation.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: June 29, 2004
    Assignee: American GNC Corporation
    Inventor: Ching-Fang Lin
  • Patent number: 6725100
    Abstract: The subject of the invention is a process for adjusting a processing unit, whereby at least one set value is varied from a starting value to a final value. In this case, the target value of a correcting value is set based on the starting value and the final value of the adjustment value, and the value of the correcting value is run up from its starting value to its target value using a parameter-dependent transfer function. A control variable is measured, the value of the control variable is compared to a comparison value, and in the case of deviations of the value of the control variable from the comparison value, at least one parameter of the transfer function is corrected.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: April 20, 2004
    Assignee: Linde Aktiengesellschaft
    Inventor: Ulrich Ewert
  • Patent number: 6711485
    Abstract: A triggering algorithm contains an accident classification section. The accident classification section senses the type of an accident that occurs. The accident classification section forms probability values for the types of accident in question when an accident cannot be classified unambiguously. By reference to the type of accident or the probabilities that are determined, weighting factors are formed and are taken into account in the calculation of the criterion and/or of one or more comparison thresholds. The triggering algorithm is modular and can thus be easily standardized on a module-specific basis.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: March 23, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Feser, Oskar Leirich
  • Patent number: 6691095
    Abstract: A method of and system for determining the state-of-health of a proton exchange membrane fuel cell stack connected to a load comprises detecting the real part of the impedance Z1 of the fuel cell stack at a selected frequency; detecting the voltage V1 of the fuel cell stack at open circuit; detecting the voltage V2 of the fuel cell stack when the maximum load current is being drawn from said fuel cell stack; and determining the state of health of said fuel cell stack from a fuzzy system trained in a relationship between said real part of the impedance of the fuel cell stack at the selected frequency, the voltage of the fuel cell stack at open circuit, and the voltage of the fuel cell stack when the maximum load current is being drawn from said fuel cell stack.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: February 10, 2004
    Assignee: U.S. Nanocorp
    Inventors: Pritpal Singh, Craig Fennie, Jr., David E. Reisner
  • Patent number: 6668247
    Abstract: A method of and system for determining the state-of-health of a lead acid battery of the type commonly used in portable external defibrillators comprises detecting an impedance characteristic of the battery at at least one selected frequency, counting the number of complete charge/discharge cycles that the battery undergoes, and determining the state of health of the battery from a fuzzy system trained in a relationship between the impedance characteristic and the cycle number of the lead acid battery and the state-of-health, wherein the state-of-health is a function of and varies with the battery's ability to deliver power required by the load and the battery's capacity to meet load requirements.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: December 23, 2003
    Assignee: U.S. Nanocorp
    Inventors: Pritpal Singh, Craig Fennie, Jr., David E. Reisner
  • Patent number: 6665652
    Abstract: A method for diagnosing whether a patient has a disease comprising interpreting the results of an immunoassay, wherein the immunoassay is viewed as a series of separate tests performed in parallel. The immunoassay can be a Western blot and the disease can be Lyme Disease.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: December 16, 2003
    Inventor: Richard B. Porwancher
  • Patent number: 6658399
    Abstract: Embodiments of a fuzzy based thresholding technique for image segmentation are disclosed.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: December 2, 2003
    Assignee: Intel Corporation
    Inventors: Tinku Acharya, Ajay K. Ray, A. K. V. Subba Rao
  • Patent number: 6633783
    Abstract: Because of the enormous number of neurons and reflex pathways involved in the control of human motion, a comprehensive identification of the structure of the feedback control circuitry is a formidable experimental task. A theoretical approach based on a carefully developed model could shed light on its likely general structure, thereby providing guidance to experimenters. This paper presents a fuzzy logic based control strategy for modeling the human postural dynamics. In particular, we develop a fuzzy controller to coordinate the movement of a three segment sagittal human model to achieve upright posture. The actuation mechanism of the system consists of six muscle like actuators which are co-activated to modulate the stiffness at the joints. Simulation results are presented to illustrate the underlying principles.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: October 14, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Behzad Dariush, Kikuo Fujimura
  • Patent number: 6625308
    Abstract: Embodiments of a fuzzy distinction based thresholding technique for image segmentation are disclosed. In one embodiment, at least one signal value level of the image is determined along which to divide a fuzzy histogram, the histogram being based, at least in part, on the image. The signal value represents a value which produces a divided fuzzy histogram with an extreme value of one of distinctiveness and fuzziness based on a measure of multidimensional distance between measurement distributions and their respective complements. The image is then segmented using the at least one signal value.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: September 23, 2003
    Assignee: Intel Corporation
    Inventors: Tinku Acharya, Ajay K. Ray, A. K. V. Subba Rao
  • Patent number: 6606609
    Abstract: An integrated circuit comprising a logic processor and a fuzzy logic coprocessor is disclosed which processes a plurality of analog inputs. The logic processor and fuzzy logic processor are combined in the form of a single integrated circuit. The integrated circuit accepts a plurality of analog inputs which are digitized and provided as output to a display peripheral or are used to control an actuator peripheral such as a control unit for a valve. The integrated circuit includes means for loading or exchanging informational elements with other units of an installation.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: August 12, 2003
    Assignee: SGS-Thomson Microelectronics S.A.
    Inventor: Maurice Le Van Suu