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公开(公告)号：US11596336B2
公开(公告)日：2023-03-07
申请号：US17059039
申请日：2019-05-22
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Arinobu Niijima , Takashi Isezaki , Ryosuke Aoki , Tomoki Watanabe , Tomohiro Yamada
Abstract: A reliable technology for determining the masticatory side of the user is provided. First and second electromyographic waveforms respectively originating from left and right muscles related to masticatory actions of a user are acquired; a coefficient of correlation between pieces of information respectively extracted from the first and the second electromyographic waveforms is calculated as a first feature value; a second feature value is calculated from a power spectrum obtained by performing frequency analysis on the first electromyographic waveform; a third feature value is calculated from a power spectrum obtained by performing frequency analysis on the second electromyographic waveform; a learning model is generated by associating the first, second, and third feature values with a plurality of labels; and the masticatory side of the user is determined based on first, second, and third feature values calculated from a newly acquired electromyographic waveform and the learning model.
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公开(公告)号：US20230021605A1
公开(公告)日：2023-01-26
申请号：US17788636
申请日：2020-12-22
Applicant: SUNSTAR INC.
Inventor： Takeshi KANATA
Abstract: Provided are chewing information storage means that stores information about chewing quality, muscle activity obtaining means that obtains a muscle activity signal of masticatory muscle of a person, analysis means that frequency-analyzes the muscle activity signal obtained by the muscle activity obtaining means, and analyzes chewing behavior based on the frequency-analyzed muscle activity signal, quality determination means determines quality of the chewing behavior based on information of the chewing behavior analyzed by the analysis means, and extraction means that extracts assistance information corresponding to the chewing quality determined by the quality determination means, from chewing information storage means.
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公开(公告)号：US20230019206A1
公开(公告)日：2023-01-19
申请号：US17465977
申请日：2021-09-03
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY , IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
Inventor： Hyunjung YI , Wonseop HWANG , Seongjin PARK , Rhokyun KWAK , Jina CHOI , Sangha KIM
IPC: A61B5/0533 , A61B5/00 , A61B5/352 , A61B5/397
Abstract: A wearable device according to the present disclosure includes: a communication portion; a body fluid sensor configured to measure conductivity in body fluid; and a controller configured to control the communication portion to transmit conductivity data to an external device in response to the frequency of rapid change in the conductivity.
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公开(公告)号：US20220346697A1
公开(公告)日：2022-11-03
申请号：US17623451
申请日：2019-06-28
Applicant: Nippon Telegraph and Telephone Corporation
Inventor： Osamu SAISHO , Shingo TSUKADA , Hiroshi IMAMURA , Atsunori MIHARA
Abstract: An electromyography processing apparatus 1 includes an electromyography acquiring unit 21 configured to generate electromyography data 11 indicating the time course of an electromyography acquired from an electrode 2 set on each of left and right muscles which are paired of an exerciser performing an exercise in which the left and right muscles are alternately used, and an evaluation unit 23 configured to calculate and output a switching index indicating that left and right muscles are alternately used, from an electromyography of the left muscle and an electromyography of the right muscle acquired at an identical time.
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公开(公告)号：US20220296905A1
公开(公告)日：2022-09-22
申请号：US17243539
申请日：2021-04-28
Applicant: Acer Incorporated
Inventor： Yi-Jin Huang , Yin-Hsong Hsu , Wei-Hao Chang , Chien-Hung Li
Abstract: An electronic device and a method for determining the intensity of a low-frequency current are provided. The method includes: individually applying a corresponding first current to a body part of a user in N consecutive time intervals, wherein the time intervals include an i-th time interval to an (i+N)-th time interval; obtaining electromyography values of the body part in each time interval; determining a second current corresponding to an (i+N+1)-th time interval based on the first current corresponding to each time interval, the body part, personal information of the user, and the electromyography values of each time interval; and applying a second current to the body part of the user in the (i+N+1)-th time interval.
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Patent Agency Ranking
公开(公告)号：US20220071548A1
公开(公告)日：2022-03-10
申请号：US17469437
申请日：2021-09-08
Applicant: Parameshwaran Ramakrishnan
Inventor： Parameshwaran Ramakrishnan
Abstract: A technique for using biofeedback to facilitate and quantify accurate patient assessments includes receiving brainwave activity readings of a provider and a recipient(s) before, during, and post an interaction between the provider and the recipient(s) for a procedure. The brainwave readings being indicative of the state of mind of the provider and the recipient(s). The provider performs a therapeutic or knowledge transfer to the patient(s)/recipient(s) and evaluates the impact/efficacy of the procedure on them. The system correlates the collected brainwave activity signals of the provider and the recipient(s) to determine the efficacy of the therapeutic or knowledge transfer procedure. The brainwave activity signals are collected using a headgear based on an electroencephalogram system and an electromyography system. The electromyography system positions electromyography sensors to measure scalp muscle movements of the provider and recipient(s) and remove the effects of scalp muscle movements from the electroencephalogram readings to provide true brainwave readings.
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公开(公告)号：US20220022803A1
公开(公告)日：2022-01-27
申请号：US17281848
申请日：2019-07-18
Applicant: Nippon Telegraph and Telephone Corporation
Inventor： Osamu Saisho , Shingo Tsukada , Kentaro Tanaka , Daigoro Yokozeki
Abstract: An electromyography processing apparatus 1 includes a storage device 10 that stores electromyography data 11 of a predetermined muscle, an onset detection unit 23 that detects an onset section of the electromyography data 11 in which an electromyography increases by a repetitive exercise performed by an athlete, and an ON/OFF indicator processing unit 25 that calculates a variance a probability distribution acquired by normalizing a root-mean-square value of the electromyography for each onset section, and outputs the calculated variance as an ON/OFF indicator for each onset section.
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公开(公告)号：US20220022802A1
公开(公告)日：2022-01-27
申请号：US17281839
申请日：2019-07-18
Applicant: Nippon Telegraph and Telephone Corporation
Inventor： Osamu Saisho , Shingo Tsukada , Kentaro Tanaka , Daigoro Yokozeki
Abstract: An electromyography processing apparatus 1 includes a storage device 10 that stores electromyography data 11 of a predetermined muscle, and a balance indicator processing unit 28 that calculates a root-mean-square value of the electromyography for each predetermined time, repeats a process for each of pieces of electromyography data of each of a plurality of muscles, the process being of outputting, as a balance evaluation value of the predetermined muscle, a value acquired by subjecting, to time differentiation, the time course of an average value of the root-mean-square value in a sliding window for calculating balance evaluation value, and outputs a balance indicator based on a balance evaluation value of each of the plurality of muscles.
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公开(公告)号：US20210397256A1
公开(公告)日：2021-12-23
申请号：US17297449
申请日：2019-11-27
Applicant: Facebook Technologies, LLC
Inventor： Alexandre BARACHANT
Abstract: Methods and systems used in calibrating the position and/or orientation of a wearable device configured to be worn on a wrist or forearm of a user, the method comprises sensing a plurality of neuromuscular signals from the user using a plurality of sensors arranged on the wearable device, and providing the plurality of neuromuscular signals and/or signals derived from the plurality of neuromuscular signals as inputs to one or more trained autocalibration models, determining based, at least in part, on the output of the one or more trained autocalibration models, a current position and/or orientation of the wearable device on the user, and generating a control signal based, at least in part, on the current position and/or orientation of the wearable device on the user and the plurality of neuromuscular signals.
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公开(公告)号：US20210386358A1
公开(公告)日：2021-12-16
申请号：US17281880
申请日：2019-07-18
Applicant: Nippon Telegraph and Telephone Corporation
Inventor： Osamu Saisho , Shingo Tsukada , Kentaro Tanaka , Daigoro Yokozeki
Abstract: An electromyography processing apparatus 1 includes a storage device 10 that stores electromyography data 11 of a predetermined muscle, a pre-processing unit 22 that calculates a root-mean-square value in the electromyography data 11 for each predetermined time and generates root-mean-square value data including the root-mean-square value for each time, and an onset detection unit 23 that sets a sliding window for onset detection to a predetermined time of the root-mean-square value data and determines that a predetermined time is an onset portion if the average of the root-mean-square values in the sliding window is higher than a threshold value, and the onset detection unit 23 further includes a threshold value determination unit 24 that sets a sliding window for threshold value detection to the predetermined time and determines a threshold value based on the average of the root-mean-square values in the sliding window for threshold value detection.
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