公开(公告)号：US20210325966A1

公开(公告)日：2021-10-21

申请号：US17258925

申请日：2019-07-12

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Ryohei HASEGAWA

IPC: G06F3/01

Abstract: An input device, method, and system enabling a switch input operation of various equipment by moving a body part other than hands and feet. Input by body movement, such as a wink, is achieved by an input device including: a detector which includes a first contact electrode placed at a first position of a body part and a second contact electrode placed at a second position of the body part, the detector configured to measure a biological signal between the first contact electrode and the second contact electrode, and to detect a low-frequency component inclusive of the biological signal; and a discrimination processor configured to determine, based on a signal from the detector, presence or absence of an input movement of the body part in a vicinity of the first position, and/or presence or absence of an input movement of the body part in a vicinity of the second position.

公开(公告)号：US20170340230A1

公开(公告)日：2017-11-30

申请号：US15527144

申请日：2015-11-16

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Ryohei HASEGAWA ,  Tomomi FUJIMURA

IPC: A61B5/0484 ,  A61B5/0478 ,  G06F19/00 ,  G06Q30/02

Abstract: Provided are a method, a device, a system, and a program for evaluating similarity of brain activity with respect to an object to be evaluated, using data obtained by a simple measurement of brain waves. Brain wave data related to cognitive processing with respect to a plurality of sensory stimuli are dimensionally compressed, and a distribution of the object to be evaluated is displayed on a two-dimensional plane or three-dimensionally. In this way, similarity of brain information with respect to the plurality of sensory stimuli is evaluated, and the similarity is visualized. The brain wave data related to the cognitive processing include brain wave data upon selection of a stimulus as a target, and brain wave data caused by a non-target stimulus event.

公开(公告)号：US20170325720A1

公开(公告)日：2017-11-16

申请号：US15527387

申请日：2015-11-17

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Ryohei HASEGAWA ,  Yukako HASEGAWA

IPC: A61B5/117 ,  A61B5/0476 ,  A61B5/00 ,  A61B5/04

Abstract: Provided are a highly confidential personal authentication device which uses brain waves, a personal authentication method, and a personal authentication system and program. The authentication device using brain waves is provided with: an electroencephalograph; and a processing unit which, with respect to brain waves with respect to a plurality of stimulus events obtained by the electroencephalograph, determines a discrimination score according to a discrimination model for estimating brain information for each authentication candidate accumulated in advance, based on a discrimination-model-to-discrimination-model comparison of the discrimination score, identifies and authenticates an authentication candidate who provided the model. The identifying of the authentication candidate based on the discrimination score in the processing unit is based on the discrimination score and/or decoding accuracy determined from the discrimination score.

公开(公告)号：US20170007147A1

公开(公告)日：2017-01-12

申请号：US15113258

申请日：2014-12-16

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Ryohei HASEGAWA

IPC: A61B5/0484 ,  A61F4/00 ,  A61B5/00 ,  A61B5/16 ,  A61B5/04 ,  A61B5/0478

CPC classification number: A61B5/04842 ,  A61B5/04012 ,  A61B5/0478 ,  A61B5/04845 ,  A61B5/162 ,  A61B5/168 ,  A61B5/6803 ,  A61B5/7264 ,  A61F4/00

Abstract: Provided are a cognitive function evaluation apparatus, a cognitive function evaluation method and system, and a program that can be implemented for non-handicapped persons and persons with severe motor impairment. The apparatus according to the present invention is an apparatus for evaluating cognitive function provided with a processing unit that analyzes and processes a brain wave caused by a plurality of stimulus events including a target and a non-target; estimates a stimulus event selected as the target from the plurality of stimulus events; determines a discrimination score or decoding accuracy; and evaluates cognitive function on the basis of a value of one or more of the discrimination score, the decoding accuracy, any of time courses, and decoding speed. With respect to two or more stimulus event groups having different levels of difficulty distinguishing between stimulus events, a discrimination score or decoding accuracy may be determined for each of the different difficulty levels, and cognitive function may be evaluated on the basis of a connection between one or more of the discrimination score, the decoding accuracy, any of time courses, and decoding speed and the difficulty levels.

Abstract translation: 提供认知功能评估装置，认知功能评估方法和系统，以及可以为非残疾人和严重运动障碍患者实施的方案。 根据本发明的装置是一种用于评估认知功能的装置，其具有分析和处理由包括目标和非目标的多个刺激事件引起的脑波的处理单元; 估计从所述多个刺激事件中选择为所述目标的刺激事件; 确定判别分数或解码精度; 并且基于判别分数，解码精度，任何时间进程和解码速度中的一个或多个的值来评估认知功能。 对于具有不同难度等级的刺激事件的两个或更多个刺激事件组来区分刺激事件，可以针对不同难度级别中的每一个确定辨别分数或解码精度，并且可以基于一个 或更多的辨别分数，解码精度，任何时间段，解码速度和难度级别。