-
公开(公告)号：US11052013B2
公开(公告)日：2021-07-06
申请号：US16371175
申请日：2019-04-01
Inventor： Kenta Murakami , Stephen William John , Hiroki Takeuchi , Shinobu Adachi
Abstract: There is provided an assistance apparatus in which when assistance provided to a user in walking is to be stopped, a motor reduces a tension of a first wire and a tension of a second wire, which couple an upper-body belt and a left knee belt to each other on or above a front part and a back part of a body of the user, to less than a second threshold value during a first stop period in a gait phase of a left leg of the user, the first stop period being a period from a period included in a first period and including a timing at which the left leg shifts from a stance phase to a swing phase to a start period of a second period, and reduces a tension of a third wire and a tension of a fourth wire, which couple the upper-body belt and a right knee belt to each other on or above the front part and back part of the body of the user, to less than the second threshold value during a second stop period in a gait phase of a right leg of the user, the second stop period being a period from a period included in a third period and including a timing at which the right leg shifts from the stance phase to the swing phase to a start period of a fourth period.
-
公开(公告)号：US10945909B2
公开(公告)日：2021-03-16
申请号：US16009508
申请日：2018-06-15
Inventor： Kenta Murakami , Stephen John , Mayumi Komatsu , Shinobu Adachi
Abstract: An assistance apparatus includes first to eighth wires that couple an upper body belt to be worn on an upper body of a user to a first knee belt and a second knee belt to be worn above a left knee and a right knee of the user, respectively, and a motor. In a case of assisting the user in turning left, the motor generates, when a left leg is in a swing phase and a right leg is in a stance phase, a tension in each of the second, third, sixth, and seventh wires at an identical timing. In a case of assisting the user in turning right, the motor generates, when the left leg is in a stance phase and the right leg is in a swing phase, a tension in each of the second, third, sixth, and seventh wires at an identical timing.
-
公开(公告)号：US10881574B2
公开(公告)日：2021-01-05
申请号：US16027198
申请日：2018-07-03
Inventor： Kenta Murakami , Stephen John , Mayumi Komatsu , Shinobu Adachi
Abstract: An assistance apparatus includes first to eighth wires that couple an upper body belt to be worn on an upper body of a user to a first knee belt and a second knee belt to be worn above a left knee and a right knee of the user, respectively, and a motor. In a case of assisting the user in moving to turn left, the motor generates a tension larger than or equal to a first threshold in each of the second wire, the third wire, and the fourth wire at an identical timing in a swing phase of a left leg of the user, and generates a tension larger than or equal to the first threshold in each of the fifth wire, the sixth wire, and the eighth wire at an identical timing in a swing phase of a right leg of the user.
-
公开(公告)号：US10772787B2
公开(公告)日：2020-09-15
申请号：US16154758
申请日：2018-10-09
Inventor： Kenta Murakami , Stephen William John , Hiroki Takeuchi , Shinobu Adachi
Abstract: An assistance apparatus includes a first and second wires coupling an upper-body belt and a left knee belt to each other on or above a front and back parts of a body of a user, respectively, a third and fourth wires coupling the upper-body belt and a right knee belt to each other on or above the front and back parts, respectively, a motor, a first sensor that detects at least tensions of the first and third wires, and a control circuit. The control circuit controls the motor to generate, when the first wire is broken, in the second wire, a tension less than a tension of the second wire during no break in the first wire, and to generate, when the third wire is broken, in the fourth wire, a tension less than a tension of the fourth wire during no break in the third wire.
-
15.发明授权公开(公告)号：US12249941B2
公开(公告)日：2025-03-11
申请号：US18245089
申请日：2021-12-23
Inventor： Kenta Murakami , Atsuki Kyuhata , Kento Yoshino , Yosuke Majima , Benpei Kimura
IPC: G05B19/416 , H02P29/00
Abstract: A motor control device includes a control unit and a generation-method changer. The control unit generates a driving signal for driving a motor in accordance with a command signal and an encoder signal and outputs the generated driving signal to the motor, the command signal being a signal for setting the position of a moving part connected to the motor to a target position, the encoder signal indicating the position of the motor detected by an encoder. The generation-method changer changes a method used by the control unit to generate the driving signal in accordance with a position sensor signal indicating a detected target position that is the target position detected by a position sensor mounted on the moving part.
-
Patent Agency Ranking
公开(公告)号：US11791751B2
公开(公告)日：2023-10-17
申请号：US17607018
申请日：2020-03-13
Inventor： Kenta Murakami , Hiroshi Fujiwara
IPC: H02P5/46
CPC classification number: H02P5/46
Abstract: A motor control system includes a control unit and a compensator. The control unit controls an operation of a shaft of a motor in accordance with an operation command for the motor. The compensator calculates compensation information based on an other-shaft information about an operation of another shaft of another motor different from the motor. The compensation information is information for compensating an influence of the operation of the other shaft upon the shaft. The control unit controls the operation of the shaft using the compensation information calculated by the compensator.
-
公开(公告)号：US11658598B2
公开(公告)日：2023-05-23
申请号：US17782923
申请日：2020-12-01
Inventor： Renya Kawakami , Kenta Murakami , Toru Tazawa , Yusuke Nonogaki
IPC: H02P25/064
CPC classification number: H02P25/064
Abstract: A linear motor system includes: a stator including first to tenth coils; a mover including a permanent magnet; a switcher that switches one or more power supply target coils; and a control device that supplies power to the one or more power supply target coils by using a deviation integral value obtained by integrating a speed deviation that is a difference between an instructed speed of the mover and an actual speed of the mover. The control device includes: a compensator that calculates a post-division deviation integral value by dividing a post-summation deviation integral value, which is a value obtained by summing the deviation integral value used to supply power to each of the one or more power supply target coils immediately before the switching, by the total number of the one or more power supply target coils immediately after the switching; and a current control unit.
-
公开(公告)号：US11344466B2
公开(公告)日：2022-05-31
申请号：US16152456
申请日：2018-10-05
Inventor： Kenta Murakami , Stephen William John , Hiroki Takeuchi , Shinobu Adachi
Abstract: In an assistance apparatus, when assisting a user in walking with an object, a motor generates, in a gait phase of a left leg, a tension less than a second threshold value in a first wire during a fifth period other than a first period during which a tension greater than or equal to a first threshold value is generated in the first wire, and a tension greater than or equal to the second threshold value in a second wire during a sixth period other than a second period during which a tension greater than or equal to the first threshold value is generated in the second wire, and generates, in a gait phase of a right leg, a tension less than the second threshold value in a third wire during a seventh period other than a third period during which a tension greater than or equal to the first threshold value is generated in the third wire, and a tension greater than or equal to the second threshold value in a fourth wire during an eighth period other than a fourth period during which a tension greater than or equal to the first threshold value is generated in the fourth wire.
-
公开(公告)号：US11020307B2
公开(公告)日：2021-06-01
申请号：US15695003
申请日：2017-09-05
Inventor： Kenta Murakami , Stephen John , Mayumi Komatsu , Jun Ozawa
Abstract: An assist system includes a fist belt worn on an upper body part of a user, a second belt worn on a knee of the user, a wire, a motor coupled with a first end of the wire and disposed on the first or second belt, a drive controller that controls drive of the motor, a gyro sensor that is disposed on the second belt and that measures an angular velocity about a direction perpendicular to the direction of the wire, and a controller. When the angular velocity is greater than or equal to a first threshold with a first tension being applied to the wire using the motor, the controller outputs first information. A second end of the wire is coupled with the second belt when the motor is disposed on the first belt but coupled with the first belt when the motor is disposed on the second belt.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
24
records
(took 0.018 seconds)
