公开(公告)号：US20240081687A1

公开(公告)日：2024-03-14

申请号：US18519396

申请日：2023-11-27

Applicant: NEC Corporation

Inventor： Hiroshi KAJITANI

IPC: A61B5/11 ,  A61B5/00

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

Abstract: A step width measurement device includes a distance calculation unit that calculates a distance between both feet of a user by using propagation data related to transmission/reception times of ultrasonic waves transmitted/received by ultrasonic transmission/reception devices mounted on each of the both feet of the user, a height calculation unit that calculates a height of a sensor by using sensor data including a spatial acceleration and a spatial angular velocity measured by sensors mounted on each of the both feet of the user, and a step width calculation unit that calculates a step width of the user by using the distance between the both feet measured at the same timing and the height of the sensor.

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.

公开(公告)号：US20210386329A1

公开(公告)日：2021-12-16

申请号：US17283295

申请日：2018-10-17

Applicant: NEC CORPORATION

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

IPC: A61B5/11

Abstract: A measurement device includes: a data acquisition unit that measures a sensor detection value by a sensor in at least two operation modes including a first mode with low power and a second mode for operating at a high speed, transmits a trigger signal when the detected value exceeds a first threshold value while operating in the first mode, transmits a first notification signal notifying that the user has started walking when the detected value has exceeded a second threshold value while operating in the second mode, and starts measuring gait data including a walking characteristic of the user wearing the sensor based on the sensor detection value; and a control unit that switches the operation mode to the second mode when the trigger signal is received, and switches the operation mode to the first mode when a predetermined condition is satisfied after reception of the first notification signal.

公开(公告)号：US20210286009A1

公开(公告)日：2021-09-16

申请号：US16328355

申请日：2017-08-25

Applicant: NEC Corporation

Inventor： Hiroshi KAJITANI

IPC: G01R31/382 ,  H01M10/44 ,  H01M10/48 ,  H02J3/28 ,  G01R31/396 ,  H02J7/00

Abstract: In order to provide a technology with which a load associated with a process for determining a state of a storage battery can be reduced, a power storage device includes: a measurement unit 125 that measures a state of a storage battery 115; a memory unit 135 that stores a piece of state data indicating the state measured by the measurement unit 125 in association with a measurement time at which the state is measured; a transmission unit 145 that transmits to a communication network a piece of state data stored in the memory unit 135; and a control unit 155 that controls the transmission unit 145 in such a way that each piece of state data transmitted by the transmission unit 145 is a piece of the state data the measurement time of which differs each day.

公开(公告)号：US20170254857A1

公开(公告)日：2017-09-07

申请号：US15507912

申请日：2015-09-07

Applicant: NEC Corporation

Inventor： Junichi MIYAMOTO ,  Yuichi IMAMURA ,  Shingo TAKAHASHI ,  Sho OHTANI ,  Hiroshi KAJITANI

IPC: G01R31/36

CPC classification number: G01R31/388 ,  G01R31/3842

Abstract: A control device of the present invention includes: an OCV estimating unit that estimates, based on a voltage value and a current value of a controlled device, an OCV of the controlled device; a capacity calculating unit that calculates an integrated capacity of the controlled device based on the current value of the controlled device; and a control unit that controls discharging and charging of the controlled device, and calculates a full capacity of the controlled device based on: a first SOC and a second SOC at a predetermined first OCV and a predetermined second OCV during the discharging or the charging of the controlled device; a first integrated capacity and a second integrated capacity at the first OCV and the second OCV during the discharging; and a third integrated capacity and a fourth integrated capacity at the second OCV and the first OCV during the charging.

公开(公告)号：US20150177856A1

公开(公告)日：2015-06-25

申请号：US14641116

申请日：2015-03-06

Applicant: NEC Corporation

Inventor： Hiroshi KAJITANI ,  Junichi Miyamoto

IPC: G06F3/0346 ,  G06F3/038 ,  G06F3/03

CPC classification number: G06F3/0346 ,  G06F3/0304 ,  G06F3/03545 ,  G06F3/038 ,  G06F3/0383 ,  G06F3/0386 ,  G06F3/043

Abstract: A digital pen system includes a rod-shaped digital pen that periodically transmits a signal including information about a direction of the digital pen, and a receiving apparatus that detects a position and the direction of the digital pen in three-dimensional space based on the signal, calculates an intersection of an extension line of the digital pen in a longitudinal direction thereof and a display screen of a display apparatus in a case that the digital pen and the display screen are apart from each other, and enables the display apparatus to perform a pen-based input at the intersection on the display screen.

Abstract translation: 一种数字笔式系统，包括：周期性地发送包含关于数字笔方向的信息的信号的杆状数字笔;以及接收装置，其基于该信号检测数字笔在三维空间中的位置和方向 在数字笔和显示屏幕彼此分开的情况下，计算数字笔在其纵向方向上的延伸线和显示装置的显示屏幕的交点，并且使显示装置能够执行 基于笔的输入在显示屏上的十字路口。