公开(公告)号：US20240277273A1

公开(公告)日：2024-08-22

申请号：US18688832

申请日：2021-09-21

Applicant: NEC CORPORATION

Inventor： Kazuki IHARA ,  Hiroyuki ENDOH

IPC: A61B5/16 ,  A61B5/00 ,  A61B5/024 ,  G16H20/70

CPC classification number: A61B5/165 ,  A61B5/02427 ,  A61B5/7267 ,  A61B5/743 ,  G16H20/70 ,  A61B2560/0223 ,  A61B2560/0462 ,  A61B2562/046

Abstract: A pulse measurement device including a plurality of light emitters which are disposed on a measurement surface of a substrate to be attached to the skin of a subject to be subjected to pulse measurement and emit light toward the skin of the subject, a light receiver which is disposed on the measurement surface of the substrate and comprises a plurality of light reception units that receive reflected light of the light emitted from the light emitters, and a control unit which causes the light emitters to emit light, receives, reception signals corresponding to the reflected light received by the light receiver from the light receiver, optimizes the intensity of the reception signals using a normalization constant set for the respective light emitters, and outputs the reception signals having intensities optimized using the normalization constants as a pulse signals.

公开(公告)号：US20210072108A1

公开(公告)日：2021-03-11

申请号：US16644425

申请日：2017-09-13

Applicant: NEC CORPORATION

Inventor： Hideaki NUMATA ,  Hiroyuki ENDOH

IPC: G01L25/00 ,  G11C13/00 ,  G01L1/22

Abstract: A control apparatus controls an array-type sensor. The control apparatus includes: a first selector/driver that is configured to select and drive one of a plurality of first lines; a second selector/driver that is configured to select and drive at least one of a plurality of second lines; a read/arithmetic circuit that is configured to read outputs of respective unit cells and perform a correction operation on the outputs; and a nonvolatile storage device that is configured to store reference data. The sensor outputs of the respective unit cells with respect to two or more reference inputs are stored as reference data in the nonvolatile storage device in a calibration mode, and a correction operation is performed on the sensor outputs of the respective unit cells using the stored reference data and results of the correction operation are output in a measurement mode.

公开(公告)号：US20180252975A1

公开(公告)日：2018-09-06

申请号：US15756727

申请日：2016-09-12

Applicant: NEC Corporation

Inventor： Hiroyuki ENDOH

IPC: G02F1/155 ,  G02F1/163 ,  G02F1/161 ,  G02F1/15

CPC classification number: G02F1/155 ,  G02F1/1503 ,  G02F1/153 ,  G02F1/161 ,  G02F1/163 ,  G02F2201/44 ,  G02F2203/62 ,  H01H35/02

Abstract: The present invention is intended to provide an electronic display device capable of displaying even when power source supply is interrupted or the entire device is deformed or the like. The present invention provides an electronic display device including: an electrochromic element including first and second transparent electrodes, first and second electrochromic thin films which are formed on the first and second transparent electrodes and at least one of which is charged and thus has optical transparency, and an electrolyte filled between the first and second electrochromic thin films; and an electrode short-circuit mechanism which causes a short circuit between the first and second transparent electrodes by an external disturbance, thereby emitting a charge and generating a color.

公开(公告)号：US20240374155A1

公开(公告)日：2024-11-14

申请号：US18691638

申请日：2021-12-10

Applicant: NEC Corporation

Inventor： Hiroyuki ENDOH

IPC: A61B5/024 ,  A61B5/00 ,  A61B5/16 ,  G16H40/67

Abstract: Provided is a measurement device that outputs, to an optical sensor including a light receiving element array in which light receiving elements are two-dimensionally arranged, a measurement instruction including a first measurement instruction to instruct first measurement corresponding to preliminary measurement and a second measurement instruction to instruct second measurement corresponding to main measurement, acquires a reception signal of the light receiving elements according to the measurement instruction, generates biological data for the light receiving elements using the acquired reception signal, calculates a deviation of the biological data for the light receiving elements using the biological data generated using the reception signal acquired according to the first measurement instruction, and sets a measurement region including a light receiving element used for second measurement according to the second measurement instruction in accordance with the deviation of the biological data for the light receiving elements.

公开(公告)号：US20190172338A1

公开(公告)日：2019-06-06

申请号：US16322367

申请日：2017-08-01

Applicant: NEC Corporation

Inventor： Fumiyuki NIHEY ,  Takashi MANAKO ,  Hiroyuki ENDOH ,  Noriyuki TONOUCHI

IPC: G08B25/10 ,  G08B17/00 ,  H04N5/262

Abstract: In order to detect a behavioral state of an evacuee in a facility and provide, for an evacuee, an evacuation instruction according to the behavioral state, the present invention provides an evacuation guidance system including: a storage means; an analysis control means for acquiring pressure data generated by at least one pressure sensor installed on an evacuation route in a facility and storing the pressure data in the storage means, and also for comparing a plurality of pieces of the pressure data generated in a verification time period, analyzing a temporal change in the pressure data, and analyzing a state of a person located on the pressure sensor; and an evacuation instruction means for generating evacuation instruction information based on an analysis result of the analysis control means.

公开(公告)号：US20230181052A1

公开(公告)日：2023-06-15

申请号：US18015279

申请日：2020-07-15

Applicant: NEC Corporation

Inventor： Kazuki IHARA ,  Hiroyuki ENDOH

IPC: A61B5/026 ,  A61B5/024 ,  A61B5/00

CPC classification number: A61B5/026 ,  A61B5/024 ,  A61B5/7235

Abstract: According to the present invention, in a configuration in which a biological signal is received from an attachment-type device including one or more light emitting means and two or more light receiving means, information on a living body is acquired with high accuracy. A modulation unit (110) dims the one or more light emitting means with a specific frequency, a receiving unit (120) receives a biological signal based on the light received from a living body through the two or more light receiving means, and an adjusting unit (130) adjusts the intensity of the biological signal acquired from each light receiving means on the basis of the component of a specific frequency of the biological signal.

公开(公告)号：US20200027334A1

公开(公告)日：2020-01-23

申请号：US16574156

申请日：2019-09-18

Applicant: NEC CORPORATION

Inventor： Fumiyuki NIHEY ,  Takashi MANAKO ,  Hiroyuki ENDOH ,  Noriyuki TONOUCHI

IPC: G08B25/10 ,  H04N5/262 ,  G08B27/00 ,  G08B17/00

Abstract: In order to detect a behavioral state of an evacuee in a facility and provide, for an evacuee, an evacuation instruction according to the behavioral state, the present invention provides an evacuation guidance system including: a storage means; an analysis control means for acquiring pressure data generated by at least one pressure sensor installed on an evacuation route in a facility and storing the pressure data in the storage means, and also for comparing a plurality of pieces of the pressure data generated in a verification time period, analyzing a temporal change in the pressure data, and analyzing a state of a person located on the pressure sensor; and an evacuation instruction means for generating evacuation instruction information based on an analysis result of the analysis control means.