公开(公告)号：US20240350057A1

公开(公告)日：2024-10-24

申请号：US18686642

申请日：2022-08-19

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Akihiko MURAI ,  Shusuke KANAZAWA ,  Ko AYUSAWA ,  Souhei WASHINO ,  Masaaki MOCHIMARU

IPC: A61B5/22 ,  A61B5/107 ,  A61B5/389

CPC classification number: A61B5/22 ,  A61B5/107 ,  A61B5/389

Abstract: An apparatus and method capable of accurately estimating a participant's muscle state are provided. In order to solve this problem, a muscle state estimation device 1 for estimating the state of a participant's muscles is provided. The muscle state estimation device 1 comprises a circumference sensor 2 that measures the circumference of the muscle, a myopotential sensor 3 that measures the electric potential generated by the activity of the muscle and a muscle state estimation unit 4 that calculates the muscle state such that an evaluation function, of which variables are the deviation of the circumference measured by the circumference sensor 2 from the circumference model that defines the relationship between the muscle state and the circumference and the deviation of the electric potential measured by the myopotential sensor 3 from the muscle tension model that defines the relationship between the muscle state and the electric potential, is minimized.

公开(公告)号：US20240020903A1

公开(公告)日：2024-01-18

申请号：US18361315

申请日：2023-07-28

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY ,  RIKEN

Inventor： Akihiko MURAI ,  Masaaki MOCHIMARU ,  Satoshi OOTA ,  Shigeho NODA

IPC: G06T13/40 ,  G06T7/20

CPC classification number: G06T13/40 ,  G06T7/20 ,  G06T2207/30196

Abstract: A virtual space sharing system 1 for causing a first moving body 10 and a second moving body 12 is disclosed. The virtual space sharing system includes: a virtual space display unit 20, 22; a delay time measurement unit 30 that measures a communication delay time between the first moving body 10 and the second moving body 12; a motion prediction unit 40 and the second moving body 12; and a display control unit 50 that displays, on the virtual space display unit 20, 22, a motion of the first moving body 10 predicted by the motion prediction unit 40 to be occurring at a point of time into the future by the communication delay time and a motion of the second moving body 12 predicted by the motion prediction unit 40 to be occurring at a point of time into the future by the communication delay time.