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公开(公告)号：US11006844B2
公开(公告)日：2021-05-18
申请号：US15666854
申请日：2017-08-02
Inventor： Kenta Murakami , Mototaka Yoshioka , Jun Ozawa
IPC: A61B5/024 , G06T7/00 , G06K9/00 , A61B5/0255 , A61B5/00 , G06K9/20 , H04N5/33 , H04N5/225 , A61B5/021
Abstract: A pulse wave measuring device includes a processor and a memory. The processor obtains a visible light image, in a visible light wavelength range, of a user irradiated with visible light by a visible light source, obtains an infrared light image, in an infrared light wavelength range, of the user irradiated with infrared light by an infrared light source, extracts a visible light wave indicative of a user's pulse wave from the visible light image, extracts an infrared light wave indicative of a user's pulse wave from the infrared light image, computes a correlation value between the visible and infrared light waves, supplies a control signal for controlling the amount of infrared light emitted from the infrared light source to the infrared light source in accordance with the correlation value, calculates biological information by using at least one of the visible and infrared light waves, and outputs the biological information.
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2.发明授权公开(公告)号：US10736517B2
公开(公告)日：2020-08-11
申请号：US14873229
申请日：2015-10-02
Inventor： Mototaka Yoshioka , Jun Ozawa
IPC: A61B5/0205 , A61B5/00 , G01S13/88 , A61B5/11 , A61B5/05 , A61B5/021 , A61B5/024 , A61B5/022 , A61B5/113
Abstract: A non-contact blood-pressure measuring device includes: an image acquiring section that acquires a skin image obtained by capturing skin of a user; a pulse-wave timing calculating section that calculates, as a pulse-wave timing, time information indicative of a time at which time-varying luminance in the skin image reaches a peak; a millimeter-wave acquiring section that acquires a signal of a radio wave reflected by the user; a heartbeat timing calculating section that calculates, as a heartbeat timing, time information indicative of a time at which a time-varying distance to the user obtained on the basis of the signal of the radio wave acquired by the millimeter-wave acquiring section reaches a peak; and a blood-pressure determining section that determines blood pressure of the user on the basis of a time difference between the pulse-wave timing and the heartbeat timing.
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公开(公告)号：US10376212B2
公开(公告)日：2019-08-13
申请号：US15607970
申请日：2017-05-30
Inventor： Jeffry Fernando , Jun Ozawa , Mototaka Yoshioka
IPC: A61N1/00 , A61B5/00 , A61B5/0488 , G16H50/70 , A61B5/04
Abstract: A muscle fatigue output device is provided with a myoelectric measurement unit that acquires myoelectricity of a user, and a main control unit that determines fatigue of a muscle of the user on the basis of the myoelectricity. The main control unit (a) uses the myoelectricity to acquire a value for a frequency characteristic of the myoelectricity, (b) uses the myoelectricity to acquire a value for an amplitude characteristic of the myoelectricity, (c) acquires a ratio between the value for the frequency characteristic and the value for the amplitude characteristic as an index for the fatigue of the muscle of the user, and (d) outputs information regarding the fatigue of the muscle of the user, on the basis of the index for the fatigue of the muscle of the user.
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Patent Agency Ranking
公开(公告)号：US12254632B2
公开(公告)日：2025-03-18
申请号：US17780803
申请日：2020-12-04
Inventor： Kenichiro Nosaka , Aki Yoneda , Shinichi Shikii , Mototaka Yoshioka
Abstract: A thermal image processing device includes: an acquirer that acquires a thermal image from a thermal image sensor; a first processor that performs, on a high temperature pixel indicating a temperature higher than a first temperature among a plurality of pixels included in the thermal image acquired, image processing for decreasing the temperature indicated by the high temperature pixel; and a second processor that performs high frequency enhancement processing for enhancing a high frequency component included in a converted image serving as the thermal image on which the image processing has been performed.
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公开(公告)号：US11147464B2
公开(公告)日：2021-10-19
申请号：US15725162
申请日：2017-10-04
Inventor： Kenta Murakami , Jun Ozawa , Mototaka Yoshioka
Abstract: A pulse wave measuring apparatus includes a visible light receiver having a first surface and a pulse wave calculator. When a vehicle with the visible light receiver is viewed from a side, the first surface is in a first region between a first optical path of first reflection light and a second optical path of second reflection light, first light comes from an eye of a user on a seat of the vehicle, second light comes from a cheek of the user, an upper end of a rearview mirror of the vehicle reflects the first light to produce the first reflection light and reflects the second light to produce the second reflection light, and the pulse wave calculator calculates a pulse wave of the user on the basis of a waveform of visible light received by the visible light receiver via the first surface and outputs the calculated pulse wave.
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公开(公告)号：US10648825B2
公开(公告)日：2020-05-12
申请号：US15849810
申请日：2017-12-21
Inventor： Hidetsugu Maekawa , Kenta Murakami , Mototaka Yoshioka
Abstract: A pulse wave measuring apparatus includes a light emitter that illuminates with light having an amount an area containing a part of skin of a user staying in a vehicle, an imager that captures an image of the area, a controller that obtains a driving route from a departure point of the vehicle to a destination point of the vehicle, obtains an estimated time at which the vehicle passes through a location along the driving route, predicts an incident amount of sun light that enters the vehicle at the location at the estimated time, and calculates the amount under a condition that a sum of the predicted incident amount and the amount is a constant value, and a pulse wave calculator that calculates a pulse wave of the user using the image, and outputs pulse wave information of the user.
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公开(公告)号：US10285616B2
公开(公告)日：2019-05-14
申请号：US14788852
申请日：2015-07-01
Inventor： Mototaka Yoshioka , Jun Ozawa
IPC: A61B5/00 , G06F3/01 , A61B5/0492
Abstract: Provided is a myoelectric potential measurement device that recognizes a user arm movement, including a bracelet having a plurality of electrodes, at least one memory, and a processor. The processor: uses the bracelet having the plurality of electrodes, which come into contact with the arm of the user, to measure a myoelectric potential at each of the plurality of electrodes; detects a measurement state when the each myoelectric potential is being measured; specifies at least one preferred electrode, which has a portion of the arm of the user positioned vertically thereunder, from among the plurality of electrodes in accordance with the measurement state, and weights the each myoelectric potential measured by the specified at least one preferred electrode, with respect to the each myoelectric potential measured by electrodes other than the preferred electrode from among the plurality of electrodes; and uses the weighted myoelectric potential to recognize the movement of the user, and outputs a recognition result.
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公开(公告)号：US09974456B2
公开(公告)日：2018-05-22
申请号：US14743930
申请日：2015-06-18
Inventor： Mototaka Yoshioka , Jun Ozawa
IPC: A61B5/04 , A61B5/00 , A61B5/0408 , A61B5/0428
CPC classification number: A61B5/04011 , A61B5/0006 , A61B5/04085 , A61B5/0428 , A61B5/6804 , A61B5/6838 , A61B5/742
Abstract: A cardiac potential measuring device comprising: a first electrode and a second electrode; a potential difference acquisition circuitry that acquires a potential difference between the first electrode and the second electrode as cardiac potential; an attachment direction detector that detects an attachment direction that is a direction of a virtual line that connects the first electrode and the second electrode attached to the body of the user; and an attachment direction calculator that calculates and outputs a preferred attachment direction in which the potential difference larger than any one of a first potential difference and a second potential difference is generated.
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