Patents by Inventor Kenichiro Fujiyama

Kenichiro Fujiyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190362258
    Abstract: Provided are an information processing apparatus and the like for providing information that serves as a basis for estimating a state relating to an object with high precision. The information processing apparatus is configured to determine relevance between status information representing a state of a target and a possibility of a scenario representing aspect of change of the state information; and determine state information in case that the possibility satisfies a predetermined selection criterion based on the determined relevance.
    Type: Application
    Filed: January 17, 2018
    Publication date: November 28, 2019
    Applicant: NEC Corporation
    Inventors: Tan AZUMA, Soichiro ARAKI, Kenichiro FUJIYAMA, Mineto SATOH, Tetsuri ARIYAMA
  • Publication number: 20190095556
    Abstract: Disclosed is an information processing device that executes a simulation with high accuracy. The information processing device calculates a prediction value reflecting uncertainty of the mathematical model on basis of first-parameters values assumed to be constant at grid points generated by discretizing a calculation domain of the simulation, second-parameters values assumed to be inconstant, and given data; iteratively updates the prediction values and the second-parameters values to improve a degree of consistency between the prediction values and observation values reflecting uncertainty; and iteratively updates the first-parameters value and controls update processing of the prediction values and the second-parameters.
    Type: Application
    Filed: March 23, 2017
    Publication date: March 28, 2019
    Applicant: NEC Corporation
    Inventors: Mineto SATOH, Soichiro ARAKI, Kenichiro FUJIYAMA, Tan AZUMA
  • Patent number: 10142054
    Abstract: A communication unit (2020) performs directly wireless communicates with a portable terminal (3000). A collection information acquisition unit (2040) acquires collection information. A division transmission unit (2060) generates multiple pieces of partial collection information by dividing the collection information, and transmits pieces of partial collection information being different from each other to multiple portable terminals (3000). A redundancy transmission unit (2080) transmits the same collection information to the multiple portable terminals (3000). An index value acquisition unit (2100) acquires any one or two of a reliability index value and a capacity index value of the portable terminal (3000). Based on any one or two of the reliability index value and the capacity index value of each portable terminal (3000), a transmission control unit (2120) selects the division transmission unit (2060) or the redundancy transmission unit (2080) to perform the transmission.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: November 27, 2018
    Assignee: NEC Corporation
    Inventors: Kenichiro Fujiyama, Koji Kida
  • Patent number: 9959766
    Abstract: Information regarding moving bodies (00) that are in danger of colliding is collected at an appropriate frequency in accordance with the degree of danger. This information-collecting device has a risk calculation unit and a transmission-interval determination unit. The risk calculation unit receives, from a plurality of moving bodies, state information that includes locations and velocities and is transmitted at provided time intervals. The risk calculation unit also computes the distance between and relative velocities of two moving bodies. The transmission-interval determination unit computes an interval such that the higher the relative velocities of two moving bodies are relative to the distance therebetween, the shorter the interval is, and provides the computed interval to the moving bodies.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: May 1, 2018
    Assignee: NEC Corporation
    Inventors: Etsuko Ichihara, Kenichiro Fujiyama, Koji Kida
  • Patent number: 9959427
    Abstract: An information determination apparatus includes a first storage unit configured to store stream data pieces obtained in time sequence; a first determining unit configured to determine whether the number of stream data pieces stored in the first storage unit is at least equal to a predetermined value; and a second determining unit configured to determine, when the number of the stream data pieces stored in the first storage unit is equal to or greater than the predetermined value, whether an individual can be identified based on a dataset composed of a plurality of the stream data pieces stored in the first storage unit, and output the dataset used for the determination and the determination result.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: May 1, 2018
    Assignee: NEC CORPORATION
    Inventors: Sawako Mikami, Kenichiro Fujiyama, Kentaro Yamasaki, Yuji Kobayashi
  • Patent number: 9942112
    Abstract: An information collection system includes a server apparatus, a plurality of edge apparatuses, and a collection rules storage unit. The edge apparatus includes a first information generation unit that generates first information and a second information generation unit that generates second information. The collection rules storage unit stores collection rules so as to be associated with the edge apparatus and the first information that the server apparatus acquires from the edge apparatus. The server apparatus includes a first information acquisition unit that acquires the first information from the edge apparatus, a second information acquisition unit that acquires the second information from the edge apparatus, and a collection rules acquisition unit that acquires collection rules from the collection rules storage unit.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: April 10, 2018
    Assignee: NEC Corporation
    Inventors: Kenichiro Fujiyama, Koji Kida
  • Publication number: 20170343514
    Abstract: Degradation of a pipe can be easily detected. A piping inspection system 1 includes an excitation unit 100, a wave detection unit 210, and a diagnosis unit 220. The excitation unit 100 excites waves of different wave modes simultaneously at a first position of a pipe 300. The wave detection unit 210 detects the waves of different wave modes at a second position of the pipe 300. The diagnosis unit 220 diagnoses degradation of the pipe 300 based on a velocity of one of the waves of different wave modes, the velocity being calculated by using a detection time difference between the waves of different wave modes.
    Type: Application
    Filed: January 13, 2016
    Publication date: November 30, 2017
    Applicant: NEC Corporation
    Inventors: Soichiro Takata, Shohei Kinoshita, Hirofumi Inoue, Shigeki Shinoda, Kenichiro Fujiyama, Takahiro Kumura, Shigeru Kasai, Nobuhiro Mikami
  • Publication number: 20170116861
    Abstract: Information regarding moving bodies (00) that are in danger of colliding is collected at an appropriate frequency in accordance with the degree of danger. This information-collecting device has a risk calculation means and a transmission-interval determination means. The risk calculation means receives, from a plurality of moving bodies, state information that includes locations and velocities and is transmitted at provided time intervals. The risk calculation means also computes the distance between and relative velocities of two moving bodies. The transmission-interval determination means computes an interval such that the higher the relative velocities of two moving bodies are relative to the distance therebetween, the shorter the interval is, and provides the computed interval to said moving bodies.
    Type: Application
    Filed: March 18, 2015
    Publication date: April 27, 2017
    Applicant: NEC Corporation
    Inventors: Etsuko ICHIHARA, Kenichiro FUJIYAMA, Koji KIDA
  • Publication number: 20160350557
    Abstract: An information determination apparatus includes a first storage unit configured to store stream data pieces obtained in time sequence; a first determining unit configured to determine whether the number of stream data pieces stored in the first storage unit is at least equal to a predetermined value; and a second determining unit configured to determine, when the number of the stream data pieces stored in the first storage unit is equal to or greater than the predetermined value, whether an individual can be identified based on a dataset composed of a plurality of the stream data pieces stored in the first storage unit, and output the dataset used for the determination and the determination result.
    Type: Application
    Filed: January 14, 2015
    Publication date: December 1, 2016
    Applicant: NEC Corporation
    Inventors: Sawako MIKAMI, Kenichiro FUJIYAMA, Kentaro YAMASAKI, Yuji KOBAYASHI
  • Publication number: 20160301497
    Abstract: A communication unit (2020) performs directly wireless communicates with a portable terminal (3000). A collection information acquisition unit (2040) acquires collection information. A division transmission unit (2060) generates multiple pieces of partial collection information by dividing the collection information, and transmits pieces of partial collection information being different from each other to multiple portable terminals (3000). A redundancy transmission unit (2080) transmits the same collection information to the multiple portable terminals (3000). An index value acquisition unit (2100) acquires any one or two of a reliability index value and a capacity index value of the portable terminal (3000). Based on any one or two of the reliability index value and the capacity index value of each portable terminal (3000), a transmission control unit (2120) selects the division transmission unit (2060) or the redundancy transmission unit (2080) to perform the transmission.
    Type: Application
    Filed: July 3, 2014
    Publication date: October 13, 2016
    Applicant: NEC Corporation
    Inventors: Kenichiro FUJIYAMA, Koji KIDA
  • Publication number: 20150249581
    Abstract: An information collection system includes a server apparatus, a plurality of edge apparatuses, and a collection rules storage unit. The edge apparatus includes a first information generation unit that generates first information and a second information generation unit that generates second information. The collection rules storage unit stores collection rules so as to be associated with the edge apparatus and the first information that the server apparatus acquires from the edge apparatus. The server apparatus includes a first information acquisition unit that acquires the first information from the edge apparatus, a second information acquisition unit that acquires the second information from the edge apparatus, and a collection rules acquisition unit that acquires collection rules from the collection rules storage unit.
    Type: Application
    Filed: May 15, 2015
    Publication date: September 3, 2015
    Inventors: Kenichiro FUJIYAMA, Koji Kida
  • Patent number: 8594928
    Abstract: Provided is a device, method and program enabling high-speed map matching while maintaining a precision of an analysis based on a map matching result even when event data is transmitted from numerous vehicles. A grid is obtained by the division of a region in which a road network exists into a latitude direction and a longitude direction by equal spaces based on data stored in the road data storage unit. A grid ID is unitarily assigned to each set of grids whose sets of arcs which are roads are common and arc passing the grid. An event grid matching unit correlates event data collected from a vehicle and a grid. When the number of pieces of event data correlated with the grid is large, a data selecting unit selects a part of the data. An event road matching unit correlates the selected event data and a road in the grid.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: November 26, 2013
    Assignee: NEC Corporation
    Inventors: Kouji Kida, Kenichiro Fujiyama
  • Patent number: 8566031
    Abstract: Provided is a map matching device, method and program. The map matching device may comprise a road grid dividing unit and a grid road combining unit. The road grid dividing unit is for deriving a grid obtained by the division of a region where a road network exists in a latitude direction and a longitude direction by equal spaces and correlating the grid and an arc crossing the grid. The grid road combining unit is for assigning a common arc ID to a plurality of grids which are adjacent to each other and whose sets of arcs correlated are coincident and assigning an arc ID to a grid whose set of arcs correlated is different from a set of arcs of any of adjacent grids to generate information indicative of a relationship among a range of a grid, a grid ID and an arc passing the grid.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: October 22, 2013
    Assignee: NEC Corporation
    Inventors: Kouji Kida, Kenichiro Fujiyama
  • Patent number: 8549192
    Abstract: A stream data control server includes: a processable flow rate managing unit which manages a processable flow rate corresponding to an amount of data per unit time, which can be processed in each of storage units serving as storing destinations; a classified data flow rate managing unit which manages a data flow rate corresponding to an amount of data processed per unit time for each class of data to which a data priority is attached; and a storing destination control unit which controls the storing destinations of respective data based upon the processable flow rate of each of the storage units and the data flow rate for each class in such a manner that the data having higher data priorities are stored in the storage units having higher priorities within a range of the processable flow rate of each of the storage units.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: October 1, 2013
    Assignee: NEC Corporation
    Inventors: Nobutatsu Nakamura, Koji Kida, Kenichiro Fujiyama
  • Patent number: 8489620
    Abstract: An analysis preprocessing system is provided which is capable of, when large amounts of data are received from a large number of data generation sources, rapidly passing those data to means for analyzing the data in order of time of generation thereof. Data acquisition means 71 acquires a data group generated by a plurality of data generation sources. Data clipping means 72 clips each data from the data group. Rearrangement control means 73 retains each clipped data therein, selects data generated prior to the corresponding data when data from a delay maximum data generation source is detected, and rearranges the selected data in order of time of generation thereof. A data storage buffer 74 stores the data rearranged in order of time of generation thereof. Analysis data determination means determines an analysis data group which is a set of data used for analysis, from the data stored in the data storage buffer 74.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: July 16, 2013
    Assignee: NEC Corporation
    Inventors: Kouji Kida, Kenichiro Fujiyama, Teruyuki Imai, Nobutatsu Nakamura
  • Publication number: 20130132417
    Abstract: Provided is a map matching device, method and program. The map matching device may comprise a road grid dividing unit and a grid road combining unit. The road grid dividing unit is for deriving a grid obtained by the division of a region where a road network exists in a latitude direction and a longitude direction by equal spaces and correlating the grid and an arc crossing the grid. The grid road combining unit is for assigning a common arc ID to a plurality of grids which are adjacent to each other and whose sets of arcs correlated are coincident and assigning an arc ID to a grid whose set of arcs correlated is different from a set of arcs of any of adjacent grids to generate information indicative of a relationship among a range of a grid, a grid ID and an arc passing the grid.
    Type: Application
    Filed: January 14, 2013
    Publication date: May 23, 2013
    Applicant: NEC CORPORATION
    Inventors: Kouji KIDA, Kenichiro FUJIYAMA
  • Publication number: 20130131979
    Abstract: Provided is a device, method and program enabling high-speed map matching while maintaining a precision of an analysis based on a map matching result even when event data is transmitted from numerous vehicles. A grid is obtained by the division of a region in which a road network exists into a latitude direction and a longitude direction by equal spaces based on data stored in the road data storage unit. A grid ID is unitarily assigned to each set of grids whose sets of arcs which are roads are common and arc passing the grid. An event grid matching unit correlates event data collected from a vehicle and a grid. When the number of pieces of event data correlated with the grid is large, a data selecting unit selects a part of the data. An event road matching unit correlates the selected event data and a road in the grid.
    Type: Application
    Filed: January 14, 2013
    Publication date: May 23, 2013
    Applicant: NEC CORPORATION
    Inventors: Kouji KIDA, Kenichiro FUJIYAMA
  • Patent number: 8355864
    Abstract: Provided is a general-purpose map matching system enabling high-speed map matching while maintaining a precision of an analysis based on a map matching result even when event data is transmitted from numerous vehicles. The grid road generation unit 8 generates each grid obtained by the division of a region in which a road network exists into a latitude direction and a longitude direction by equal spaces based on data stored in the road network storage unit. Then, combine grids whose sets of roads passing are the same. The event grid matching unit correlates event data collected from a vehicle and a grid. When the number of pieces of event data correlated with the grid is large, the event processing priority determination unit selects a part of the data. The event road matching unit correlates the selected event data and a road in the grid.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: January 15, 2013
    Assignee: NEC Corporation
    Inventors: Kouji Kida, Kenichiro Fujiyama
  • Patent number: 8250027
    Abstract: In a computer system, an SQL as a content of data processing request by a database independent protocol (protocol connected to a DBMS) that is issued by an application 3110 is converted from an SQL for an old DB before a migration to an SQL for a new DBMS 3200, then converted into a protocol that depends on a new DBMS 3210, and then provided to the new DBMS 3210. This operation is realized by an extension DB connection middleware 3120 that is obtained by extending a DB connection middleware that does not depend on the DBMS or an application.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: August 21, 2012
    Assignee: NEC Corporation
    Inventors: Kenichiro Fujiyama, Nobutatsu Nakamura
  • Publication number: 20120143834
    Abstract: Each time sequential data is generated by a data generation source (001), the data is inputted into a sequential data memory unit (002) and accumulated in a memory device. Each time sequential data is inputted, a sequence summary unit (003) creates a sequence approximation function that approximates the inputted sequential data and previously inputted sequential data. A summary result memory unit (008) stores the sequence approximation functions that were created by the sequence summary unit (003). At specified timing, an accumulated data summary unit (005) creates, from a specified range of sequential data that was accumulated in the sequential data memory unit (002), a collective approximation function that approximates that sequential data with that range as the domain.
    Type: Application
    Filed: July 27, 2010
    Publication date: June 7, 2012
    Applicant: NEC CORPORATION
    Inventors: Tomoo Ebiyama, Kouji Kida, Kenichiro Fujiyama