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：US20170200985A1

公开(公告)日：2017-07-13

申请号：US15315664

申请日：2015-04-22

Applicant: NEC Corporation

Inventor： Hiroaki FUKUNISHI ,  Kenji KOBAYASHI ,  Suguru WATANABE ,  Osamu ISHIBASHI ,  Hiroshi KAJITANI ,  Kazuhisa SUNAGA ,  Hideyuki SUGITA ,  Atsumasa SAWADA ,  Ayami TANABE

IPC: H01M10/44 ,  H02J7/00 ,  H01M10/0525

CPC classification number: H01M10/44 ,  H01M10/0525 ,  H01M10/613 ,  H02J7/0052 ,  H02J7/0063 ,  H02J2007/0067

Abstract: A pulsed discharge device according to an exemplary aspect of the present invention includes a controller configured to determine an interruption time to a discharge time based on a predetermined time ratio between the discharge time and the interruption time when performing a pulsed discharge to repeat alternately a discharge and a pause in discharging of a chemical battery.

公开(公告)号：US20160276715A1

公开(公告)日：2016-09-22

申请号：US15034407

申请日：2014-11-13

Applicant: NEC CORPORATION

Inventor： Hiroshi KAJITANI

IPC: H01M10/42 ,  H02J7/00 ,  H01M10/46 ,  H01M10/44 ,  H01M10/48

CPC classification number: H01M10/4257 ,  H01G11/18 ,  H01M10/443 ,  H01M10/46 ,  H01M10/482 ,  H01M10/486 ,  H01M2010/4271 ,  H01M2010/4278 ,  H02J7/0014 ,  H02J7/0016 ,  H02J7/0021 ,  H02J7/0022 ,  H02J7/0047 ,  H02J7/345 ,  H02J2007/005 ,  Y02E60/13

Abstract: A problem to be solved is to realize a reduction of a difference in temperature between battery cells. Provided is a storage battery (10) including an electrical storage unit (20) including a battery cell group having a plurality of battery cells connected in series, a temperature difference detection unit (21) that detects a difference in temperature between the plurality of battery cells, and a charging and discharging control unit (22) that executes control processing of controlling at least one of charging to the electrical storage unit (20) and discharging from the electrical storage unit (20) so that the amount of current flowing in a battery cell having a relatively low temperature among the plurality of battery cells becomes greater than the amount of current flowing in a battery cell having a relatively high temperature among the plurality of battery cells.

Abstract translation: 要解决的问题是实现电池单元之间的温度差的减小。 本发明提供一种蓄电池（10），包括具有串联连接的多个电池单体的电池单元组的蓄电单元（20），检测多个电池之间的温度差的温度差检测单元 电池和充放电控制单元（22），其执行控制处理，该控制处理控制对蓄电单元（20）的充电中的至少一个并且从蓄电单元（20）放电，使得在 在多个电池单元中，具有相对较低温度的电池单元变得大于在多个电池单元中具有较高温度的电池单元中流动的电流量。

公开(公告)号：US20160049809A1

公开(公告)日：2016-02-18

申请号：US14780119

申请日：2014-03-07

Applicant: NEC CORPORATION

Inventor： Hiroshi KAJITANI ,  Koji MATSUNAGA ,  Katsuya ONOSE

IPC: H02J7/00

CPC classification number: H02J7/0014 ,  H02J7/0013 ,  H02J7/02 ,  H02J7/345

Abstract: A storage battery includes an electricity storage unit (10) including a first battery cell group in which a plurality of first battery cells (10-1, and the like) are connected in series, an auxiliary electricity storage unit (11) including a second battery cell group in which a plurality of second battery cells (11-1, and the like) capable of performing higher-speed charging and discharging in comparison to the first battery cells (10-1, and the like) are connected in series, a voltage adjustment unit (14) that performs voltage adjustment during power delivery between the electricity storage unit (10) and the auxiliary electricity storage unit (11), a first switching unit (12) which is capable of individually connecting the plurality of first battery cells (10-1, and the like) to the voltage adjustment unit (14), and which is capable of connecting the first battery cells to the voltage adjustment unit (14) in an individual combination unit of two or more of the first battery cells (10-1, and the like), and a second switching unit (13) which is capable of individually connecting the plurality of second battery cells (11-1, and the like) to the voltage adjustment unit (14) and which is capable of connecting the second battery cells (11-1, and the like) to the voltage adjustment unit (14) in an individual combination unit of two or more of the second battery cells (11-1).

Abstract translation: 蓄电池包括：蓄电单元（10），其包括多个第一电池单元（10-1等）串联连接的第一电池单元组，辅助蓄电单元（11），包括第二电池单元 与第一电池单元（10-1等）相比，能够进行高速充放电的多个第二电池单元（11-1等）的电池单元组串联连接， 在所述蓄电单元（10）和所述辅助蓄电单元（11）之间进行电力输送时的电压调整的电压调整单元（14），能够分别连接所述多个第一电池 电池单元（10-1等）连接到电压调节单元（14），并且能够以第一电池的两个或更多个的单独组合单元将第一电池单元连接到电压调节单元（14） 细胞（10- 1等）和能够将多个第二电池单元（11-1等）分别连接到电压调节单元（14）并能够连接的第二开关单元（13） 在第二电池单元（11-1）中的两个以上的单独组合单元中的电压调整单元（14）的第二电池单元（11-1等）。

公开(公告)号：US20250032001A1

公开(公告)日：2025-01-30

申请号：US18716596

申请日：2021-12-27

Applicant: NEC Corporation

Inventor： Chenhui HUANG ,  Fumiyuki NIHEY ,  Zhenwei WANG ,  Hiroshi KAJITANI ,  Yoshitaka NOZAKI ,  Kenichiro FUKUSHI

IPC: A61B5/11

Abstract: A lower limb muscle power estimation device that includes a data acquisition unit that acquires feature amount data including a feature amount extracted from sensor data related to foot motion of a user, the feature amount being used to estimate lower limb muscle power of the user, a storage unit that stores an estimation model for outputting a lower limb muscle power index corresponding to input of the feature amount data, an estimation unit that inputs the acquired feature amount data to the estimation model and estimates the lower limb muscle power of the user according to the lower limb muscle power index output from the estimation model, and an output unit that outputs information on the estimated lower limb muscle power of the user.

公开(公告)号：US20240407668A1

公开(公告)日：2024-12-12

申请号：US18703784

申请日：2022-03-11

Applicant: NEC Corporation

Inventor： Hiroshi KAJITANI

IPC: A61B5/11 ,  A61B5/00

Abstract: Provided is a gait measurement device that includes an acquisition unit that acquires sensor data measured by a sensor mounted on footwear, a mounting-direction-determination unit that determines a mounting direction of the sensor using the acquired sensor data, a coordinate conversion unit that converts a coordinate system of the sensor data in accordance with the determined mounting direction of the sensor, a detection unit that detects a walking event from time-series data of the sensor data in which the coordinate system has been converted, a calculation unit that calculates a gait parameter in accordance with the detected walking event, and a transmission unit that transmits the calculated gait parameter.

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.