Patents by Inventor Takashi Numata
Takashi Numata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230333661Abstract: An arithmetic apparatus displays a 3D work-target object in a 3D coordinate space on a display device, and receives a motion signal that is a signal representing a motion measured by any one of sensor units. When receiving the motion signal, the arithmetic apparatus identifies the measured motion based on the motion signal. When the identified motion is a motion regarding a spatial shift that is a shift of a viewpoint in the 3D coordinate space of a user, the arithmetic apparatus shifts the viewpoint in the 3D coordinate space of the user in accordance with the identified motion. When the identified motion is a hand motion regarding a work movement with respect to a work target, the arithmetic apparatus outputs output information including information representing the work movement in accordance with the identified motion.Type: ApplicationFiled: March 2, 2023Publication date: October 19, 2023Inventors: Takashi NUMATA, Kazuyuki TAJIMA, Keiichi MITANI, Toshiteru NAKAMURA
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Patent number: 11756443Abstract: Provided is a learning support system which can enhance a learning effect by sharing a matter of interest among learners viewing a learning content. The learning support system includes: a learning content display unit configured to play and display a teaching material video; a learner information reporting unit configured to acquire biological information of a learner during play of the teaching material video and report the biological information as learner information; a region-of-attention identification unit configured to identify a region-of-attention of the learner based on the biological information; a learner information display creation unit configured to generate a screen in which the region-of-attention is superimposed on the teaching material video of another learner belonging to the same cluster as the learner; and a learner information transmission unit configured to transmit the screen to the another learner.Type: GrantFiled: April 28, 2020Date of Patent: September 12, 2023Assignees: HITACHI, LTD., KYOTO UNIVERSITYInventors: Takashi Numata, Ryuji Mine
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Patent number: 11701011Abstract: Provided is a biological information detection device including: an image acquisition unit that acquires an image composed of image signals including a plurality of wavelength components obtained by capturing reflected light from an object; a region division unit that divides the image into a plurality of regions for each frame; a local pulse wave detection unit that detects a pulse wave based on wavelength fluctuation between frames for each of the regions; and a blood pressure estimation unit that calculates propagation velocity of the pulse wave based on an appearance time difference of patterns of the pulse waves in two or more regions extracted based on an appearance order of the patterns of the pulse waves in the plurality of regions, and estimates a blood pressure based on the propagation velocity of the pulse wave.Type: GrantFiled: August 27, 2020Date of Patent: July 18, 2023Assignee: HITACHI, LTD.Inventors: Nobuhiro Fukuda, Yuichi Nonaka, Yuto Komatsu, Charles Limasanches, Takashi Numata, Hironori Wakana, Masashi Kiguchi
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Patent number: 11547309Abstract: A biological information detection device includes: a video capture unit, a blood flow analysis unit, a local pulse wave detection unit, a pulse wave propagation velocity calculation unit, and a blood pressure estimation unit. The video capture unit obtains video information on a face of a living body. The blood flow analysis unit analyzes video data of at least three skin areas in the video information, as blood flow information. The local pulse wave detection unit is provided for each skin area to calculate pulse information based on the blood flow information sequenced chronologically. The pulse wave propagation velocity calculation unit calculates a pulse wave propagation velocity based on a phase difference between pieces of the pulse information at each skin area calculated by the local pulse wave detection unit. The blood pressure estimation unit estimates blood pressure based on the pulse wave propagation velocity.Type: GrantFiled: March 13, 2020Date of Patent: January 10, 2023Inventors: Nobuhiro Fukuda, Masashi Kiguchi, Takashi Numata, Hironori Wakana
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Patent number: 11538491Abstract: An interaction system that interacts with a user is disclosed. The interaction system includes: an input device that receives a speech signal of the user; a computing device that determines a speech content of the interaction system for a speech content acquired from the speech signal of the user such that a frequency distribution of speech feature values of the speech content of the interaction system approaches an ideal frequency distribution; and an output device that outputs the determined speech content of the interaction system.Type: GrantFiled: September 24, 2020Date of Patent: December 27, 2022Assignee: HITACHI, LTD.Inventors: Takashi Numata, Ryuji Mine, Yasuhiro Asa
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Publication number: 20220343785Abstract: Provided is a learning support system which can enhance a learning effect by sharing a matter of interest among learners viewing a learning content. The learning support system includes: a learning content display unit configured to play and display a teaching material video; a learner information reporting unit configured to acquire biological information of a learner during play of the teaching material video and report the biological information as learner information; a region-of-attention identification unit configured to identify a region-of-attention of the learner based on the biological information; a learner information display creation unit configured to generate a screen in which the region-of-attention is superimposed on the teaching material video of another learner belonging to the same cluster as the learner; and a learner information transmission unit configured to transmit the screen to the another learner.Type: ApplicationFiled: April 28, 2020Publication date: October 27, 2022Inventors: Takashi NUMATA, Ryuji MINE
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Patent number: 11276420Abstract: An interaction system that provides an interaction interface comprising: a computer and a device that obtains information, wherein the computer stores information for managing data in which a type of a second feature value is associated with a listening pattern that defines a tendency of a response action performed by the interaction interface on a user; calculates a first feature value that is an index for evaluating a change in state during speech by the user on the basis of information obtained by the device; calculates second feature values on the basis of the first feature value; selects a target second feature value from among the second feature values; selects the listening pattern corresponding to the target second feature value; and generates output information for controlling the interaction interface on the basis of the selected listening pattern.Type: GrantFiled: October 9, 2019Date of Patent: March 15, 2022Assignee: HITACHI, LTD.Inventors: Takashi Numata, Yasuhiro Asa, Nobuhiro Fukuda
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Publication number: 20210125630Abstract: An interaction system that interacts with a user is disclosed. The interaction system includes: an input device that receives a speech signal of the user; a computing device that determines a speech content of the interaction system for a speech content acquired from the speech signal of the user such that a frequency distribution of speech feature values of the speech content of the interaction system approaches an ideal frequency distribution; and an output device that outputs the determined speech content of the interaction system.Type: ApplicationFiled: September 24, 2020Publication date: April 29, 2021Inventors: Takashi NUMATA, Ryuji MINE, Yasuhiro ASA
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Publication number: 20210085196Abstract: Provided is a biological information detection device including: an image acquisition unit that acquires an image composed of image signals including a plurality of wavelength components obtained by capturing reflected light from an object; a region division unit that divides the image into a plurality of regions for each frame; a local pulse wave detection unit that detects a pulse wave based on wavelength fluctuation between frames for each of the regions; and a blood pressure estimation unit that calculates propagation velocity of the pulse wave based on an appearance time difference of patterns of the pulse waves in two or more regions extracted based on an appearance order of the patterns of the pulse waves in the plurality of regions, and estimates a blood pressure based on the propagation velocity of the pulse wave.Type: ApplicationFiled: August 27, 2020Publication date: March 25, 2021Applicant: HITACHI, LTD.Inventors: Nobuhiro FUKUDA, Yuichi NONAKA, Yuto KOMATSU, Charles LIMASANCHES, Takashi NUMATA, Hironori WAKANA, Masashi KIGUCHI
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Publication number: 20210090460Abstract: An information processing system visualizes brain states to optimize rehabilitation programs for rapid feedback of their effects to a patient and healthcare staff, to thereby promote the efficiency of rehabilitation. An embodiment of the system includes: a storage section that stores test-result brain-state relationship information associating results of activities of multiple examinees subjected to predetermined tests with brain states of the examinees; an input section that accepts a first test result as the result of the activity of a first examinee subjected to the predetermined tests; a control section that estimates the brain state from the first test result on the basis of the test-result brain-state relationship information; and an output section that outputs the estimated brain state.Type: ApplicationFiled: July 22, 2020Publication date: March 25, 2021Inventors: Tsukasa FUNANE, Hirokazu ATSUMORI, Akihiko KANDORI, Akiko OBATA, Ayako NISHIMURA, Yuto KOMATSU, Takashi NUMATA, Seiji HAMA, Toshio TSUJI
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Publication number: 20210030285Abstract: A biological information detection device is robust to color change of external light or illumination light. The biological information detection device includes: an image acquiring section that acquires image information by taking an image of the face of a living body; a blood flow analyzing section that corrects the image information according to the Retinex theory for color constancy, outputs hue information in the corrected image information as blood flow information, and outputs skin area mark information indicating the position of a given skin area in the face; and a local pulse wave detecting section that obtains, from the blood flow information of the skin area corresponding to the skin area mark information, pulse information of the skin area.Type: ApplicationFiled: July 30, 2020Publication date: February 4, 2021Applicant: HITACHI, LTD.Inventors: Nobuhiro FUKUDA, Hironori WAKANA, Takashi NUMATA
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Patent number: 10832119Abstract: In order to provide an interactive interface that arouses a user's sympathy and realizes a continuous interaction having much information, an interactive system of providing the interactive interface of performing an interaction with a user includes a computer and a measurement device of measuring a signal related to a user's speech. The computer calculates a first feature amount indicating feature of a user action in the speech of the user, based on the signal measured by the measurement device, calculates a second feature amount that is a control value of a response action to the user performed by the interactive interface, based on the first feature amount, calculates a control time of adjusting a timing of controlling the response action depending on the type of the response action, and controls the interactive interface, based on the second feature amount and the control time.Type: GrantFiled: February 23, 2018Date of Patent: November 10, 2020Assignee: Hitachi, Ltd.Inventors: Takashi Numata, Yasuhiro Asa, Toshinori Miyoshi, Hiroki Sato
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Publication number: 20200337573Abstract: A biological information detection device includes: a video capture unit, a blood flow analysis unit, a local pulse wave detection unit, a pulse wave propagation velocity calculation unit, and a blood pressure estimation unit. The video capture unit obtains video information on a face of a living body. The blood flow analysis unit analyzes video data of at least three skin areas in the video information, as blood flow information. The local pulse wave detection unit is provided for each skin area to calculate pulse information based on the blood flow information sequenced chronologically. The pulse wave propagation velocity calculation unit calculates a pulse wave propagation velocity based on a phase difference between pieces of the pulse information at each skin area calculated by the local pulse wave detection unit. The blood pressure estimation unit estimates blood pressure based on the pulse wave propagation velocity.Type: ApplicationFiled: March 13, 2020Publication date: October 29, 2020Applicant: Hitachi, Ltd.Inventors: Nobuhiro FUKUDA, Masashi Kiguchi, Takashi Numata, Hironori Wakana
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Publication number: 20200272810Abstract: A response apparatus includes a processor that executes a program, and is connected to an acquisition device that acquires biological data and to a display device. The processor executes a target identification process that identifies a feeling expression target of a user using the response apparatus on the basis of the biological data of the user acquired by the acquisition device, a feeling identification process that identifies a feeling of the user on the basis of facial image data of the user, a determination process that determines a feeling indicated by the image displayed on the display device on the basis of the feeling expression target identified by the target identification process and the feeling of the user identified by the feeling identification process. Image data indicating the feeling determined by the determination process is output to the display device.Type: ApplicationFiled: December 13, 2019Publication date: August 27, 2020Inventors: Yasuhiro ASA, Takashi NUMATA, Kaori KARASAWA, Takaaki HASHIMOTO
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Publication number: 20200152225Abstract: An interaction system that provides an interaction interface comprising: a computer and a device that obtains information, wherein the computer stores information for managing data in which a type of a second feature value is associated with a listening pattern that defines a tendency of a response action performed by the interaction interface on a user; calculates a first feature value that is an index for evaluating a change in state during speech by the user on the basis of information obtained by the device; calculates second feature values on the basis of the first feature value; selects a target second feature value from among the second feature values; selects the listening pattern corresponding to the target second feature value; and generates output information for controlling the interaction interface on the basis of the selected listening pattern.Type: ApplicationFiled: October 9, 2019Publication date: May 14, 2020Inventors: Takashi NUMATA, Yasuhiro ASA, Nobuhiro FUKUDA
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Patent number: 10636422Abstract: There is provided a system in which empowerment is performed by outputting conversation information to the user, the system including: a computer including a processor, a memory, and an interface; and a measuring device that measures signals of a plurality of types, wherein the processor calculates values of conversation parameters of a plurality of attributes for evaluating a state of a user who performs the empowerment on the basis of a plurality of signals measured by the measuring device, the processor selects a selection parameter which is a conversation parameter of a change target on the basis of the values of the conversation parameters of the plurality of attributes, the processor decides conversation information for changing a value of the selection parameter, and the processor outputs the decided conversation information to the user.Type: GrantFiled: January 4, 2018Date of Patent: April 28, 2020Assignee: HITACHI, LTD.Inventors: Takashi Numata, Toshinori Miyoshi, Hiroki Sato
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Publication number: 20200043360Abstract: An action support device stores correspondence information in which an action and a feeling of a subject and an expression of a face are associated with respect to each of a series of tasks set in order, and performs a specification process in which a feeling of the subject is specified on the basis of the information related to an expression of the subject acquired by an acquisition device, an evaluation process in which an action related to the task of the subject is evaluated on the basis of the information related to a behavior of the subject, a selection process in which an expression of the face image is selected with reference to the correspondence information on the basis of the feeling of the subject and an evaluation result of the evaluation process, in which the face image of the expression selected by the selection process is output.Type: ApplicationFiled: June 7, 2019Publication date: February 6, 2020Inventors: Yasuhiro ASA, Hiroki SATO, Takashi NUMATA
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Publication number: 20190125197Abstract: A biological information detection apparatus includes: a camera; a frame image analysis unit that detects a region including pixels having a predetermined skin color, as a skin color region, from a frame image taken using the camera, and detects a signal corresponding to a light wavelength from an image signal of each pixel included in the skin color region, as skin color wavelength data; a skin color wavelength difference detection unit that calculates an average value of differences of the skin color wavelength data from predetermined reference wavelength data for the pixels included in the skin color region, and acquires the average value as average wavelength difference data; a pulse wave signal detection unit that detects a signal obtained by smoothing the average wavelength difference data detected in time series, as a pulse wave signal.Type: ApplicationFiled: March 30, 2018Publication date: May 2, 2019Inventors: Nobuhiro FUKUDA, Masashi KIGUCHI, Akiko NAKAJIMA, Takashi NUMATA, Hironori WAKANA, Masuyoshi YAMADA
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Publication number: 20190114934Abstract: A system for evaluating actions that a plurality of target objects performs to achieve communication, the system comprising at least one computer, the at least one computer is configured to: obtain a plurality of signals used for calculating a plurality of state values for evaluating an internal state of a target object in a case where the target object performed the action, from the plurality of target objects; calculate a state feature amount made up of the plurality of state values using the plurality of signals; and generate display information on the basis of the state feature amount, the display information for displaying a positional relationship of the internal state of each of the plurality of target objects in an evaluation space for visually illustrating a similarity of the internal state of the each of the plurality of target objects.Type: ApplicationFiled: March 6, 2018Publication date: April 18, 2019Applicant: HITACHI, LTD.Inventors: Yasuhiro Asa, Hiroki Sato, Toshinori Miyoshi, Takashi Numata, Miaomei Lei
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Publication number: 20180357526Abstract: In order to provide an interactive interface that arouses a user's sympathy and realizes a continuous interaction having much information, an interactive system of providing the interactive interface of performing an interaction with a user includes a computer and a measurement device of measuring a signal related to a user's speech. The computer calculates a first feature amount indicating feature of a user action in the speech of the user, based on the signal measured by the measurement device, calculates a second feature amount that is a control value of a response action to the user performed by the interactive interface, based on the first feature amount, calculates a control time of adjusting a timing of controlling the response action depending on the type of the response action, and controls the interactive interface, based on the second feature amount and the control time.Type: ApplicationFiled: February 23, 2018Publication date: December 13, 2018Inventors: Takashi NUMATA, Yasuhiro ASA, Toshinori MIYOSHI, Hiroki SATO