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公开(公告)号：US20200037911A1
公开(公告)日：2020-02-06
申请号：US16094637
申请日：2017-04-06
Inventor： Ryohei Hasegawa
Abstract: An intention decoding apparatus and a decoding method that quickly and precisely analyze brain waves for decoding an intention decision without requiring an advance brain wave measurement for, for example, a calibration step, and an intention conveyance assist apparatus, an intention conveyance assist system, and a program using a decoding result of the intention decision in the brain. The intention decoding apparatus that analyzes brain waves to decode an intention performs a process to examine a dispersion by classifying brain wave data of event-related potentials corresponding to a plurality of stimulus events into any one stimulus event and the other stimulus events among the plurality of stimulus events, on all the stimulus events, and identifies a classification where the dispersion becomes maximum to identify the one stimulus event in the classification as the intention. The intention conveyance assist apparatus includes a presentation unit that presents a decoding result.
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2.发明授权公开(公告)号：US10786173B2
公开(公告)日：2020-09-29
申请号：US15527144
申请日：2015-11-16
Inventor： Ryohei Hasegawa , Tomomi Fujimura
IPC: A61B5/0484 , G06Q30/02 , A61B5/00 , A61B5/04 , G16H10/60 , A61B5/0478 , G16H10/20
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.
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公开(公告)号：US10383540B2
公开(公告)日：2019-08-20
申请号：US15113258
申请日：2014-12-16
Inventor： Ryohei Hasegawa
IPC: A61B5/0484 , A61B5/16 , A61B5/00 , A61B5/04 , A61B5/0478 , 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.
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Patent Agency Ranking
4.发明授权公开(公告)号：US10470690B2
公开(公告)日：2019-11-12
申请号：US15527387
申请日：2015-11-17
Inventor： Ryohei Hasegawa , Yukako Hasegawa
IPC: A61B5/117 , A61B5/0476 , A61B5/00 , A61B5/0484 , 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.
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公开(公告)号：US20150026195A1
公开(公告)日：2015-01-22
申请号：US14380955
申请日：2012-10-12
Inventor： Ryohei Hasegawa
CPC classification number: G06F17/30595 , A61B5/0476 , A61B5/04842 , G06F19/00 , G06F19/36 , G06Q30/02
Abstract: A device, a system, a method, and a program are realized which are capable of predicting the order of the feeling and the preference of a subject to products which are the research objects, for marketing research and others. The images of a plurality of research objects are presented a plurality of times as visual stimuli in order to measure the brain wave. A brain wave data of an event related electrical potential for the research objects which the subject has selected as a target immediately after the stimulus presentation, is processed by a linear discriminant analysis to quantitatively represent with a single index, in order to rank the research objects.
Abstract translation: 实现了一种能够预测作为研究对象的产品的感觉和偏好的顺序以及营销研究等的设备，系统，方法和程序。 将多个研究对象的图像呈现多次作为视觉刺激以便测量脑波。 受试者在刺激呈现之后立即选择为目标的研究对象的事件相关电位的脑波数据通过线性判别分析进行处理，以用单个指标定量表示，以便对研究对象进行排序 。
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公开(公告)号：US12201434B2
公开(公告)日：2025-01-21
申请号：US16094637
申请日：2017-04-06
Inventor： Ryohei Hasegawa
Abstract: An intention decoding apparatus and a decoding method that quickly and precisely analyze brain waves for decoding an intention decision without requiring an advance brain wave measurement for, for example, a calibration step, and an intention conveyance assist apparatus, an intention conveyance assist system, and a program using a decoding result of the intention decision in the brain. The intention decoding apparatus that analyzes brain waves to decode an intention performs a process to examine a dispersion by classifying brain wave data of event-related potentials corresponding to a plurality of stimulus events into any one stimulus event and the other stimulus events among the plurality of stimulus events, on all the stimulus events, and identifies a classification where the dispersion becomes maximum to identify the one stimulus event in the classification as the intention. The intention conveyance assist apparatus includes a presentation unit that presents a decoding result.
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公开(公告)号：US11493994B2
公开(公告)日：2022-11-08
申请号：US17258925
申请日：2019-07-12
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.
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公开(公告)号：US09798796B2
公开(公告)日：2017-10-24
申请号：US14380955
申请日：2012-10-12
Inventor： Ryohei Hasegawa
IPC: G06F17/30 , A61B5/0476 , G06Q30/02 , A61B5/0484 , G06F19/00
CPC classification number: G06F17/30595 , A61B5/0476 , A61B5/04842 , G06F19/00 , G06F19/36 , G06Q30/02
Abstract: A device, a system, a method, and a program are realized which are capable of predicting the order of the feeling and the preference of a subject to products which are the research objects, for marketing research and others. The images of a plurality of research objects are presented a plurality of times as visual stimuli in order to measure the brain wave. A brain wave data of an event related electrical potential for the research objects which the subject has selected as a target immediately after the stimulus presentation, is processed by a linear discriminant analysis to quantitatively represent with a single index, in order to rank the research objects.
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