Patents by Inventor Yuka KANDA

Yuka KANDA 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).

  • Patent number: 12111402
    Abstract: A positioning assistance apparatus 1 that improves the positioning accuracy includes an estimation unit 2 that estimates a delay amount (ionosphere delay amount or a troposphere delay amount) using a model generated through machine learning (an ionosphere delay model or a troposphere delay model) and a degree-of-precision calculation unit 3 that calculates a degree of precision with respect to a delay amount (an ionosphere delay amount or a troposphere delay amount) calculated through positioning computation, using the estimated delay amount.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: October 8, 2024
    Assignee: NEC Solution Innovators, Ltd.
    Inventors: Ryo Miyamoto, Maho Kashiwagi, Yuka Kanda
  • Patent number: 11899117
    Abstract: A moving body positioning system of the present invention includes: a GNSS receiver that is included in a moving body and that receives a GNSS signal transmitted from each of one or more satellites and acquires pieces of observation data respectively corresponding to the satellites; an external data acquisition means that acquires external data; a multipath detection means that detects multipath with respect to an observation data group; and a positioning calculation means that performs positioning calculation after a selection of a satellite to be used and a satellite to be excluded on the basis of a result of the multipath detection.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: February 13, 2024
    Assignee: NEC Solution Innovators, Ltd.
    Inventors: Ryo Miyamoto, Maho Kashiwagi, Yuka Kanda
  • Patent number: 11762100
    Abstract: An information processing apparatus includes a positioning signal acquisition unit configured to acquire a positioning signal transmitted from a positioning satellite and a parameter acquisition unit configured to calculate a parameter preset based on the positioning signal. The information processing apparatus further includes an accuracy index calculation unit configured to calculate a positioning accuracy index from the parameter, and an output unit configured to output the positioning accuracy index.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: September 19, 2023
    Assignee: NEC Solution Innovators, Ltd.
    Inventors: Ryo Miyamoto, Maho Kashiwagi, Yuka Kanda
  • Patent number: 11754722
    Abstract: An information processing apparatus includes a positioning signal acquisition unit configured to acquire a positioning signal transmitted from a positioning satellite and a parameter acquisition unit configured to acquire a parameter preset based on the positioning signal. The information processing apparatus further includes a storage unit configured to store a plurality of the parameters at a plurality of time points in a preset period, an accuracy index calculation unit configured to or calculating a positioning accuracy index from the plurality of stored parameters, and an output unit configured to output the positioning accuracy index.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: September 12, 2023
    Assignee: NEC Solution Innovators, Ltd.
    Inventors: Ryo Miyamoto, Maho Kashiwagi, Yuka Kanda
  • Patent number: 11520054
    Abstract: A position measuring system includes: a connection destination candidate selecting unit which selects a connection destination candidate for each of a plurality of route coordinates on a route included in route information, on the basis of the distance between each of the plurality of route coordinates and reference stations included in a reference station list; and a connection destination information generating unit which determines a connection destination for which to acquire the correction information, on the basis of prescribed determining criteria, from among the connection destination candidates selected by the connection destination candidate selecting means, and generates and outputs connection destination information relating to the determined connection destination.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: December 6, 2022
    Assignee: NEC Solution Innovators, Ltd.
    Inventors: Maho Kashiwagi, Ryo Miyamoto, Yuka Kanda
  • Publication number: 20220317311
    Abstract: A positioning assistance apparatus 1 that improves the positioning accuracy includes an estimation unit 2 that estimates a delay amount (ionosphere delay amount or a troposphere delay amount) using a model generated through machine learning (an ionosphere delay model or a troposphere delay model) and a degree-of-precision calculation unit 3 that calculates a degree of precision with respect to a delay amount (an ionosphere delay amount or a troposphere delay amount) calculated through positioning computation, using the estimated delay amount.
    Type: Application
    Filed: August 20, 2020
    Publication date: October 6, 2022
    Applicant: NEC Solution innovators, Lid.
    Inventors: Ryo MIYAMOTO, Maho KASHIWAGI, Yuka KANDA
  • Publication number: 20220299651
    Abstract: A positioning assistance apparatus 1 that improves positioning accuracy includes a positioning error calculation unit 2 that calculates a positioning error using a reference position indicating a position of a generation-side apparatus 10 that generates local correction information and an estimated position indicating a position of the generation-side apparatus 10 estimated based on a positioning signal received from a satellite, and a use determination unit 3 that determines whether or not to use local correction information based on the calculated positioning error.
    Type: Application
    Filed: August 20, 2020
    Publication date: September 22, 2022
    Applicant: NEC Solution Innovation, Ltd.
    Inventors: Ryo MIYAMOTO, Maho KASHIWAGI, Yuka KANDA
  • Publication number: 20210349220
    Abstract: An information processing apparatus includes a positioning signal acquisition unit configured to acquire a positioning signal transmitted from a positioning satellite and a parameter acquisition unit configured to acquire a parameter preset based on the positioning signal. The information processing apparatus further includes a storage unit configured to store a plurality of the parameters at a plurality of time points in a preset period, an accuracy index calculation unit configured to or calculating a positioning accuracy index from the plurality of stored parameters, and an output unit configured to output the positioning accuracy index.
    Type: Application
    Filed: June 14, 2019
    Publication date: November 11, 2021
    Applicant: NEC Solution Innovators, Ltd.
    Inventors: Ryo MIYAMOTO, Maho KASHIWAGI, Yuka KANDA
  • Publication number: 20210349219
    Abstract: An information processing apparatus includes a positioning signal acquisition unit configured to acquire a positioning signal transmitted from a positioning satellite and a parameter acquisition unit configured to calculate a parameter preset based on the positioning signal. The information processing apparatus further includes an accuracy index calculation unit configured to calculate a positioning accuracy index from the parameter, and an output unit configured to output the positioning accuracy index.
    Type: Application
    Filed: June 14, 2019
    Publication date: November 11, 2021
    Applicant: NEC SOLUTION INNOVATORS, LTD.
    Inventors: Ryo MIYAMOTO, Maho KASHIWAGI, Yuka KANDA
  • Publication number: 20210011171
    Abstract: A moving body positioning system of the present invention includes: a GNSS receiver that is included in a moving body and that receives a GNSS signal transmitted from each of one or more satellites and acquires pieces of observation data respectively corresponding to the satellites; an external data acquisition means that acquires external data; a multipath detection means that detects multipath with respect to an observation data group; and a positioning calculation means that performs positioning calculation after a selection of a satellite to be used and a satellite to be excluded on the basis of a result of the multipath detection.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 14, 2021
    Applicant: NEC Solution Innovators, Ltd.
    Inventors: Ryo MIYAMOTO, Maho KASHIWAGI, Yuka KANDA
  • Publication number: 20200183019
    Abstract: An information processing apparatus includes a movement amount calculation unit (110) configured to calculate a movement of an object based on positional information indicating a position of the object, a comparison unit (120) configured to compare the movement calculated by the movement amount calculation unit (110) with a predetermined threshold, and an output unit (130) configured to output a result of the comparison made in the comparison unit (120). By this configuration, for example, the information processing apparatus outputs a result of the comparison between the movement of the object calculated based on the positional information indicating the position of the object calculated by satellite positioning and a predetermined threshold. Therefore, it is possible to determine the reliability of the result of the satellite positioning more accurately.
    Type: Application
    Filed: August 8, 2018
    Publication date: June 11, 2020
    Applicant: NEC Solution Innovators, Ltd.
    Inventors: Ryo MIYAMOTO, Maho KASHIWAGI, Yuka KANDA
  • Publication number: 20200057162
    Abstract: A position measuring system includes: a connection destination candidate selecting unit which selects a connection destination candidate for each of a plurality of route coordinates on a route included in route information, on the basis of the distance between each of the plurality of route coordinates and reference stations included in a reference station list; and a connection destination information generating unit which determines a connection destination for which to acquire the correction information, on the basis of prescribed determining criteria, from among the connection destination candidates selected by the connection destination candidate selecting means, and generates and outputs connection destination information relating to the determined connection destination.
    Type: Application
    Filed: March 7, 2018
    Publication date: February 20, 2020
    Applicant: NEC Solution Innovators, Ltd.
    Inventors: Maho KASHIWAGI, Ryo MIYAMOTO, Yuka KANDA