公开(公告)号：US20230083178A1

公开(公告)日：2023-03-16

申请号：US18057758

申请日：2022-11-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAMASA ANDO ,  SHUNSUKE IMAI ,  HITOSHI TOMINAGA

IPC: G01S7/4865 ,  G01S7/481 ,  G01S17/10 ,  G01S7/4861

Abstract: A measurement apparatus includes first and second light sources, a diffuser, a photodetector, and a processing circuit. The first and second light sources respectively output first emitted light and second emitted light. The mirror causes the first emitted light and the second emitted light to be concentrated and incident on one region of the diffuser. The photodetector detects first reflected light and second reflected light that emanate from a subject due to the first emitted light and the second emitted light diffused by the diffuser, respectively. The processing circuit generates and outputs information related to the subject, based on the result of detection of the first reflected light and the second reflected light by the photodetector. The distance between two light spots respectively formed on the one region by the first emitted light and the second emitted light is less than the distance between the first and second light sources.

公开(公告)号：US20230301536A1

公开(公告)日：2023-09-28

申请号：US18327928

申请日：2023-06-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HITOSHI TOMINAGA ,  HIROTO YANAGAWA

IPC: A61B5/026 ,  A61B5/00

CPC classification number: A61B5/0261 ,  A61B5/4064

Abstract: A biological measurement device includes a light emitting device, a sensor, and a processing circuit. The light emitting device irradiates a first region and a second region, which is located on an upper side relative to the first region, of a forehead of a subject with light. The sensor detects first scattering light generated by the light incident on the first region and second scattering light generated by the light incident on the second region and outputs detection signals according to intensities of the first and second scattering light. The processing circuit selects one of the first and second regions as a target region based on the detection signals and/or an image signal indicative of an image including a face of the subject and generates and outputs brain activity data indicative of a state of brain activity of the subject based on the detection signal in the selected target region.

公开(公告)号：US20230414142A1

公开(公告)日：2023-12-28

申请号：US18462449

申请日：2023-09-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROTO YANAGAWA ,  HITOSHI TOMINAGA ,  YUMIKO OHNO ,  SHUNSUKE IMAI ,  TSUGUHIRO KORENAGA ,  YUKIKO UCHIDA

IPC: A61B5/16 ,  A61B5/00 ,  A61B5/026 ,  A61B5/024

CPC classification number: A61B5/165 ,  A61B5/02405 ,  A61B5/026 ,  A61B5/74

Abstract: A method for estimating an emotional state is executed by a computer and includes acquiring an amount of change of a cerebral blood flow of a user from a reference time, acquiring an amount of change of a heart rate of the user from a reference time, and outputting a signal indicating that the user is in an excited state in a case where the amount of change of the cerebral blood flow is smaller than a first threshold value and the amount of change of the heart rate is larger than a second threshold value.

公开(公告)号：US20220400964A1

公开(公告)日：2022-12-22

申请号：US17820266

申请日：2022-08-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHUNSUKE IMAI ,  TAKAMASA ANDO ,  HITOSHI TOMINAGA

IPC: A61B5/026 ,  G01N21/27 ,  A61B5/00

Abstract: A measurement apparatus includes a light source, a sensor including light detection cells including a first light detection cell and a second light detection cell, and an electronic circuit. The circuit causes the light source to emit a light pulse, causes the first light detection cell to detect a reflected light pulse from a target in an exposure period including at least part of a period from when an intensity of the reflected light pulse starts increasing to when it starts falling and generate a first signal, causes the second light detection cell to detect the reflected light pulse in an exposure period including at least part of a trailing period from when the intensity of the reflected light pulse starts falling to when it stops falling and generate a second signal. The circuit generates, based on the first and second signals, data representing states of the target.