Patents by Inventor Akihiro Inomata

Akihiro Inomata 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).

  • Patent number: 10292602
    Abstract: A blood flow index calculating method includes: obtaining, by a camera, an image capturing a first site of a living body and a second site of the living body; extracting an area of the first site of the living body and an area of the second site of the living body, by a processor; detecting a pulse wave pattern of the first site of the living body from the area of the first site of the living body and detecting a pulse wave pattern of the second site of the living body from the area of the second site of the living body, by the processor; first calculating a delay amount from the pulse wave pattern of the first site and the pulse wave pattern of the second site, by the processor; and second calculating an index related to blood flow by using the delay amount, by the processor.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: May 21, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Masato Sakata, Daisuke Uchida, Akihiro Inomata, Hidenori Sekiguchi
  • Publication number: 20180368764
    Abstract: A meal detection method executed by a processor of a computer, the meal detection method includes acquiring first sensing data from a first sensor configured to detect a motion of an arm of a target person; acquiring second sensing data from a second sensor configured to detect a heart rate of the target person; setting a motion section in which a specific motion by the arm of the target person is executed at least twice or more based on the first sensing data; and determining whether a meal is performed in a section including at least a portion of the motion section, based on the second sensing data corresponding to the motion section and learning information corresponding to a unit motion of the specific motion at a time of the meal.
    Type: Application
    Filed: June 8, 2018
    Publication date: December 27, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Tatsuya Mori, Kazuho Maeda, Shinji Hotta, Akihiro Inomata
  • Publication number: 20180368782
    Abstract: A meal detection method executed by a processor of a computer, the meal detection method includes acquiring first sensing data from a first sensor configured to detect a motion of an arm of a target person; acquiring second sensing data from a second sensor configured to detect a heart rate of the target person; calculating a first evaluation value indicating likelihood that a meal is being performed based on a first feature amount extracted from the first sensing data; calculating a second evaluation value indicating likelihood that the meal is performed based on a second feature amount extracted from the second sensing data; and determining whether the target person has eaten the meal or not, based on the first evaluation value and the second evaluation value.
    Type: Application
    Filed: June 14, 2018
    Publication date: December 27, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Tatsuya Mori, Kazuho Maeda, Akihiro Inomata
  • Publication number: 20180256046
    Abstract: A pulse wave analysis apparatus including a memory, and a processor coupled to the memory and the processor configured to execute a process, the process including extracting, from each of a plurality of captured images of a subject, a plurality of image areas corresponding to each of a plurality of parts of the subject respectively, generating pieces of waveform data corresponding to the plurality of parts based on an image analysis for the plurality of image areas, each of the pieces of waveform data indicating a pulse wave of the subject, calculating a first matching degree between the pieces of waveform data, and determining whether a noise is included in the pieces of waveform data based on the first matching degree.
    Type: Application
    Filed: May 14, 2018
    Publication date: September 13, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Tatsuya Mori, Daisuke Uchida, Kazuho Maeda, Akihiro Inomata
  • Publication number: 20180254105
    Abstract: An information processing apparatus includes a memory, and a processor coupled to the memory and configured to obtain time series data indicating a time-dependent change of a biological signal value after a meal, determine, based on the obtained time series data, a first feature amount of the time-dependent change of the biological signal value after the meal, determine, based on the determined first feature amount, an index value related to the meal, and output the determined index value.
    Type: Application
    Filed: May 1, 2018
    Publication date: September 6, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Tatsuya MORI, Daisuke Uchida, Kazuho Maeda, Akihiro Inomata
  • Publication number: 20180254106
    Abstract: A behavior sensing device includes: a processor configured to: acquire sensor data from one or more sensors; calculate a first characteristic amount serving as an index of characteristic of biological reaction to a behavior to be sensed from the sensor data; calculate a probability of occurrence of the behavior as a first behavior occurrence probability from the first characteristic amount; calculate a second characteristic amount serving as another index of characteristic of a habit relating to the behavior to be sensed from the sensor data; calculate another probability of occurrence of the behavior as a second behavior occurrence probability from the second characteristic amount; and determine whether specific behavior is performed based on the first behavior occurrence probability and the second behavior occurrence probability.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 6, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Tatsuya MORI, Kazuho MAEDA, Akihiro INOMATA
  • Publication number: 20180242909
    Abstract: A meal intake detection device includes: a memory; and a processor coupled to the memory and configured to: detect a rise of heart rate; extract as a meal intake candidate a time range from a detected rise to time when the heart rate decreases to a predetermined value in temporal changes in heart rate, and when a second meal intake candidate is extracted in a time range of an extracted first meal intake candidate, separate the first meal intake candidate and the second meal intake candidate along a predetermined line; and detect whether each of the first meal intake candidate and the second meal intake candidate is a meal intake based on feature quantities relating to the first meal intake candidate and the second meal intake candidate that are separated.
    Type: Application
    Filed: May 2, 2018
    Publication date: August 30, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Tatsuya MORI, Kazuho MAEDA, Akihiro INOMATA
  • Publication number: 20180240543
    Abstract: An information processing apparatus includes a memory, and a processor coupled to the memory and configured to acquire time series data of heart rate over a plurality of days, specify a first time zone of a day in which an increasing change of the heart rate satisfies a first condition in common with the time series data on the plurality of days, specify the increasing change in a second time zone of the day for each of the time series data on the plurality of days, the second time zone overlapped with at least a part of the first time zone, specify a meal time based on the increasing of the second time zone for each of the time series data, and output the specified meal time.
    Type: Application
    Filed: April 24, 2018
    Publication date: August 23, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Kazuho Maeda, Tatsuya Mori, Daisuke Uchida, Akihiro Inomata
  • Patent number: 9986922
    Abstract: A pulse wave detection method includes obtaining an image obtained by photographing a subject with an imaging device, extracting intensities representative of signal components of a specific frequency band for respective wavelength components among signals of a plurality of wavelength components included in the image, calculating, using the intensities extracted for the respective wavelength components, a weight coefficient by which a signal is multiplied when the signals are calculated between the wavelength components to minimize an arithmetic value of the signal components in the specific frequency band after multiplication, multiplying at least one of the signals of the respective wavelength components by the weight coefficient, performing arithmetic operation on the signals between the wavelength components after multiplication by the weight coefficient, and detecting pulse waves of the subject using a signal after the arithmetic operation.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: June 5, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Daisuke Uchida, Masato Sakata, Hidenori Sekiguchi, Akihiro Inomata
  • Publication number: 20180144091
    Abstract: An information processing method executed by a processor included in an information processing apparatus coupled to a sensor, the method includes acquiring information on a living body from the sensor; estimating, by using estimation models, indices other than one unknown index among three indices including an index being related to a feature of a change with time of a biological response signal value derived from a meal after completion of the meal, an index regarding energy consumed by the living body in a time period, and an index regarding a change in an amount of energy stored in the living body in the time period, based on the acquired information; estimating the one unknown index based on a relation satisfied by the three indices and a result of the estimating indices; and generating at least one of model parameters of the estimation models based on the estimated three indices.
    Type: Application
    Filed: November 20, 2017
    Publication date: May 24, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Toshiaki FUNAKUBO, Tatsuya MORI, Daisuke UCHIDA, Kazuho MAEDA, Akihiro INOMATA, Yasuyuki NAKATA
  • Patent number: 9962126
    Abstract: A pulse wave detection apparatus detects a signal, and calculates a correlation coefficient between waveforms of the signal included in a first window and a second window having a predetermined duration, the correlation coefficient being smaller when a difference between dispersion of the amplitude value in the first window and dispersion of the amplitude value in the second window becomes larger.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: May 8, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Kazuho Maeda, Masato Sakata, Daisuke Uchida, Akihiro Inomata
  • Patent number: 9894515
    Abstract: An information processing device configured to communicate with a plurality of mobile terminals, the information processing device includes a memory and a processor coupled to the memory and configured to acquire, from the plurality of mobile terminals, information related to movements of the plurality of mobile terminals, identify, based on the information, movement patterns of the plurality of mobile terminals, identify, based on the movement patterns, a queue including at least two mobile terminals of the plurality of mobile terminals, identify, based on the information of the mobile terminals included in the queue, a waiting time that elapses before a first mobile terminal that is one of the plurality of mobile terminals and that is included in the queue reaches a head of the queue, and output the identified waiting time.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: February 13, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Jun Maeda, Kazuho Maeda, Akihiro Inomata
  • Patent number: 9839377
    Abstract: A subject person specifying apparatus includes a processor, and a memory storing a program causing the processor to perform acquiring characteristic quantities of variations of heart rate related to a meal of a subject person from heart rate data of the subject person as a target of an individual specifying process, calculating a distribution range of history values of the characteristic quantities associated with a plurality of candidates, and extracting the candidate corresponding to the subject person from within the plurality of candidates, based on a relation between the characteristic quantities acquired from the subject person and the distribution range of the history values of the characteristic quantities.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: December 12, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Shinji Hotta, Akihiro Inomata
  • Publication number: 20170347884
    Abstract: A non-transitory recording medium storing a correlation determination program for causing a computer to execute a process including calculating a time interval between an occurrence time of one of first type events and an occurrence time of each of second type events based on information including the occurrence times of the first type events and the second type events, for each of the first type events; comparing, for each of ranges of values relating to the time interval, a first rate of the number of time intervals within the range among a set of time intervals to a size of the range and a second rate of the number of time intervals outside the range among the set to a size of a range obtained by excluding the range from the predetermined time; and determining presence or absence of a correlation between the first type and second type events.
    Type: Application
    Filed: August 23, 2017
    Publication date: December 7, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Shinji HOTTA, Akihiro INOMATA
  • Publication number: 20170273634
    Abstract: A non-transitory computer-readable recording medium stores a meal estimation program that causes a computer to execute a process including: acquiring time-series data of heart rate; calculating a feature quantity relating to a second peak appearing after a first peak in which a peak of the heart rate appears first after start of a meal, for each partial data included in the time-series data of the heart rate; determining presence of a meal in the partial data using the feature quantity relating to the second peak calculated for each of the partial data; and estimating a meal time from the partial data determined to include a meal.
    Type: Application
    Filed: June 6, 2017
    Publication date: September 28, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Shinji HOTTA, Akihiro INOMATA
  • Publication number: 20170195870
    Abstract: An information processing device configured to communicate with a plurality of mobile terminals, the information processing device includes a memory and a processor coupled to the memory and configured to acquire, from the plurality of mobile terminals, information related to movements of the plurality of mobile terminals, identify, based on the information, movement patterns of the plurality of mobile terminals, identify, based on the movement patterns, a queue including at least two mobile terminals of the plurality of mobile terminals, identify, based on the information of the mobile terminals included in the queue, a waiting time that elapses before a first mobile terminal that is one of the plurality of mobile terminals and that is included in the queue reaches a head of the queue, and output the identified waiting time.
    Type: Application
    Filed: December 20, 2016
    Publication date: July 6, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Jun Maeda, Kazuho Maeda, Akihiro Inomata
  • Publication number: 20170112382
    Abstract: A pulse-wave detection device acquires an image. Furthermore, the pulse-wave detection device executes face detection on the image. Furthermore, the pulse-wave detection device sets the identical region of interest in the frame, of which the image is acquired, and the previous frame to the frame in accordance with a result of the face detection. Moreover, the pulse-wave detection device detects a pulse wave signal based on a difference in brightness obtained between the frame and the previous frame.
    Type: Application
    Filed: January 3, 2017
    Publication date: April 27, 2017
    Applicant: FUJITSU LIMITED
    Inventors: YASUYUKI NAKATA, Akihiro Inomata, Takuro Oya, Masato Sakata
  • Publication number: 20160338603
    Abstract: A pulse wave detection device acquires an image. The pulse wave detection device extracts a living body region included in the image. The pulse wave detection device generates a signal from time series data of a pixel value included in a partial image of the image corresponding to the living body region. The pulse wave detection device calculates a variation index for evaluating a degree of disturbance of a pulse wave included in the signal. The pulse wave detection device controls whether to output the signal by using the variation index.
    Type: Application
    Filed: August 4, 2016
    Publication date: November 24, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Yasuyuki NAKATA, Akihiro INOMATA
  • Publication number: 20160256078
    Abstract: A specifying method includes specifying a first period for which it is determined that a specific movement or a specific posture is being performed by applying a first threshold to time series data obtained from a sensor for detecting a movement of a person, specifying a second period for which it is determined that the specific movement or the specific posture is being performed by applying a second threshold to the time series data, the second threshold being eased compared to the first threshold, specifying a transitional period based on a difference between the second period and the first period, the transitional period corresponding to one of a period of a transition to the specific movement or the specific posture, and another period of another transition from the specific movement or the specific posture to another movement or another posture and outputting a result.
    Type: Application
    Filed: January 26, 2016
    Publication date: September 8, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Yuki Sasamoto, Akihiro Inomata, Shinji Hotta, Kazuho Maeda
  • Publication number: 20160058328
    Abstract: A subject person specifying apparatus includes a processor, and a memory storing a program causing the processor to perform acquiring characteristic quantities of variations of heart rate related to a meal of a subject person from heart rate data of the subject person as a target of an individual specifying process, calculating a distribution range of history values of the characteristic quantities associated with a plurality of candidates, and extracting the candidate corresponding to the subject person from within the plurality of candidates, based on a relation between the characteristic quantities acquired from the subject person and the distribution range of the history values of the characteristic quantities.
    Type: Application
    Filed: August 31, 2015
    Publication date: March 3, 2016
    Inventors: Shinji Hotta, Akihiro Inomata