公开(公告)号：US20230188601A1

公开(公告)日：2023-06-15

申请号：US17767504

申请日：2019-10-21

Applicant: NEC Corporation

Inventor： Hiroshi KAJITANI ,  Toshinori TAKEMURA ,  Kentaro NAKAHARA ,  Hannah POKKA ,  Itumi HANEDA ,  Akira KAMEI ,  Kenichiro FUKUSHI ,  Chenhui HUANG ,  Zhenwei WANG ,  Yuka IMAI ,  Koichi MORIKAWA ,  Hiroshi OKUDA ,  Hiroaki NAKANO

IPC: H04L67/12 ,  G01C22/00

CPC classification number: H04L67/12 ,  G01C22/006

Abstract: A mobile terminal detects a self-device being located at a predetermined location, and stops reception of sensing information from a module device that transmits the sensing information, if being located at the predetermined location is detected. A fixed device receives the sensing information from the module device, and transmits the sensing information to a cloud server.

公开(公告)号：US20220391609A1

公开(公告)日：2022-12-08

申请号：US17770472

申请日：2019-10-31

Applicant: NEC Corporation

Inventor： Kenichiro FUKUSHI ,  Zhenwei WANG ,  Hiroaki NAKANO ,  Toshinori TAKEMURA ,  Kentaro NAKAHARA ,  Hannah POKKA ,  ltsumi KATO ,  Akira KAMEI ,  Chenhui HUANG ,  Hiroshi KAJITANI ,  Koichi MORIKAWA ,  Hiroshi OKUDA

IPC: G06K7/14

Abstract: An information processing system includes an identification unit configured to identify unique information on shoes using at least part of a captured image of the shoes, and a setting unit configured to set an association between an acquisition device configured to acquire the unique information and a module device attached to the shoes based on the unique information.

公开(公告)号：US20210401325A1

公开(公告)日：2021-12-30

申请号：US17294490

申请日：2018-11-20

Applicant: NEC Corporation

Inventor： Kenichiro FUKUSHI ,  Kentaro NAKAHARA ,  Hiroshi KAJITANI ,  Chenhui HUANG

IPC: A61B5/11 ,  A61B5/00

Abstract: A gait measurement system includes: a locus calculation device that detects at least one gait phase from acceleration data measured by an inertial measurement unit, calculates velocity data by subjecting the acceleration data to time integration, calculates correction amounts associated with each of the gait phases using the gait phases and the velocity data, calculates correction velocity data by subtracting the correction amounts from the velocity data associated with each of the gait phases, and calculates locus data by subjecting the calculated correction velocity data to time integration; and an index calculation device that calculates a gait index, using the locus data calculated by the locus calculation device.

公开(公告)号：US20210205666A1

公开(公告)日：2021-07-08

申请号：US17269378

申请日：2018-08-21

Applicant: NEC Corporation

Inventor： Kenichiro FUKUSHI ,  Hiroshi KAJITANI ,  Chenhui HUANG ,  Kentaro NAKAHARA

IPC: A63B24/00 ,  G16H50/50 ,  G16H50/30 ,  G16H50/70 ,  G16H40/67 ,  A61B5/397 ,  A61B5/103 ,  A61B5/00

Abstract: In order to distribute content suitable for a user according to a fatigue degree of the user who uses an information distribution service at an appropriate timing, an information distribution device includes a measurement data acquisition means that acquires measurement data regarding a motion of the user, a measurement data analysis unit that analyzes the measurement data acquired by the measurement data acquisition means and calculates a fatigue indicator indicating a degree of fatigue of the user, a content generation unit that generates content on the basis of the fatigue indicator calculated by the measurement data analysis unit, and a notification management unit that distributes the content generated by the content generation unit on the basis of the fatigue indicator.

公开(公告)号：US20240324967A1

公开(公告)日：2024-10-03

申请号：US18601052

申请日：2024-03-11

Applicant: NEC Corporation

Inventor： Kazuki IHARA ,  Fumiyuki NIHEY ,  Chenhui HUANG ,  Kenichiro FUKUSHI ,  Hiroshi KAJITANI ,  Yoshitaka NOZAKI ,  Kentaro NAKAHARA

IPC: A61B5/00 ,  A61B5/11

CPC classification number: A61B5/7275 ,  A61B5/112 ,  A61B5/4585 ,  A61B5/4824 ,  A61B5/6807 ,  A61B5/7267 ,  A61B5/7278 ,  A61B2562/0219

Abstract: A knee pain risk estimation device includes a feature amount construction unit that constructs a feature amount related to a sign variable to be used for estimation of a knee pain risk indicating a risk of having a medical examination in a future due to knee pain, a sign variable estimation unit that inputs the feature amount to a sign variable estimation model to estimate at least one of the sign variables, and performs a principal component analysis on the estimated at least one of the sign variables to generate a principal component vector, a knee pain risk estimation unit that estimates a knee pain risk index, and generates knee pain risk information regarding the knee pain risk by using the estimated knee pain risk index, and an output unit that outputs the generated knee pain risk information.

公开(公告)号：US20240256836A1

公开(公告)日：2024-08-01

申请号：US18570463

申请日：2021-06-21

Applicant: NEC Corporation

Inventor： Kenichiro FUKUSHI ,  Chenhui HUANG ,  Zhenwei WANG ,  Fumiyuki NIHEY ,  Hiroshi KAJITANI ,  Kentaro NAKAHARA

IPC: G06N3/0455

CPC classification number: G06N3/0455

Abstract: A training device includes an acquisition unit that acquires a data set of raw data and correct answer data, a feature amount calculation unit that calculates a feature amount using the raw data, a model construction unit that constructs an encoding model that outputs a code related to the feature amount in response to an input of the raw data and an estimation model that outputs an estimation result related to the raw data in response to an input of the code, and a training processing unit that trains the encoding model and the estimation model in such a way that the estimation result matches the correct answer data based on a relationship between the code and the feature amount.

公开(公告)号：US20240164705A1

公开(公告)日：2024-05-23

申请号：US18395831

申请日：2023-12-26

Applicant: NEC Corporation

Inventor： Kazuki IHARA ,  Kenichiro FUKUSHI ,  Zhenwei WANG ,  Chenhui HUANG ,  Hiroshi KAJITANI ,  Fumiyuki NIHEY ,  Yoshitaka NOZAKI ,  Kentaro NAKAHARA

IPC: A61B5/00 ,  A61B5/11

CPC classification number: A61B5/4585 ,  A61B5/112 ,  A61B5/6807 ,  A61B2562/0219

Abstract: An index value estimation device including a data acquisition unit that acquires feature amount data including a feature amount extracted from sensor data related to a motion of a foot of a user and used for estimating an index value indicating a knee state of the user, a storage unit that stores an estimation model that outputs an index value according to an input of the feature amount data, an estimation unit that estimates an output obtained by inputting the acquired feature amount data to the estimation model as an index value indicating the knee state of the user, and an output unit that outputs information about the estimated index value indicating the knee state of the user.

公开(公告)号：US20240148277A1

公开(公告)日：2024-05-09

申请号：US18411277

申请日：2024-01-12

Applicant: NEC Corporation

Inventor： Chenhui HUANG ,  Kenichiro FUKUSHI ,  Zhenwei WANG ,  Hiroshi KAJITANI ,  Fumiyuki NIHEY ,  Kentaro NAKAHARA

IPC: A61B5/11 ,  A61B5/107

CPC classification number: A61B5/112 ,  A61B5/1074

Abstract: An estimation device that includes a detection unit that detects a terminal stance period from time-series data of sensor data based on a physical quantity related to movement of a foot measured by a sensor provided at a foot portion, a feature amount extraction unit that extracts a feature amount from an angular waveform in a coronal plane during the terminal stance period, and a presumption unit that estimates a degree of pronation/supination of the foot by using the feature amount extracted from the angular waveform in the coronal plane.

公开(公告)号：US20240138711A1

公开(公告)日：2024-05-02

申请号：US18393929

申请日：2023-12-22

Applicant: NEC Corporation

Inventor： Chenhui HUANG ,  Fumiyuki NIHEY ,  Kentaro NAKAHARA ,  Kenichiro FUKUSHI

IPC: A61B5/11 ,  A61B5/00

CPC classification number: A61B5/112 ,  A61B5/7235

Abstract: A feature-amount generation device that includes an extraction unit that generates a gait waveform for one gait cycle from time-series data of sensor data related to a motion of a foot, extracts a feature amount from the generated gait waveform, and extracts a gait phase cluster by integrating a plurality of temporally continuous gait phases from each of which a feature amount is extracted, and a generation unit that generates a feature amount of the gait phase cluster using a preset feature-amount constitutive expression, and generates feature-amount data in which the plurality of gait phases constituting the gait phase cluster and the feature amount of the gait phase cluster are associated with each other.

公开(公告)号：US20230368447A1

公开(公告)日：2023-11-16

申请号：US18139753

申请日：2023-04-26

Applicant: NEC Corporation

Inventor： Kazuki IHARA ,  Kenichiro FUKUSHI ,  Zhenwei WANG ,  Hiroshi KAJITANI ,  Fumiyuki NIHEY ,  Chenhui HUANG ,  Yoshitaka NOZAKI ,  Kentaro NAKAHARA

IPC: G06T11/60 ,  A61B5/11 ,  A61B5/00

CPC classification number: G06T11/60 ,  A61B5/1122 ,  A61B5/112 ,  A61B5/1127 ,  A61B5/743 ,  A61B2562/0219 ,  G06T2210/41

Abstract: A knee trajectory information generation device which includes an acquisition unit that acquires walking data including time-series data of a foot position and a knee position of a subject, a first calculation unit that calculates a first movement route connecting a start point and an end point of a gait cycle by using time-series data of the foot position included in the walking data, a second calculation unit that calculates a second movement route corresponding to a trajectory of the knee position between the start point and the end point of the gait cycle by using time-series data of the knee position included in the walking data, an information generation unit that calculates a difference between the first movement route and the second movement route and generate knee trajectory information including visual information corresponding to the calculated difference, and an output unit that outputs the generated knee trajectory information.