Body motion measuring apparatus
US7670303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2004 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Jul 19, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2220/803
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A body motion measuring apparatus is described, embodiments of which include an apparatus for detecting the magnitudes of motions in different directions at a time using body motion sensors, calculating the size V of a composite vector based on the relationship between the magnitudes of the motions, comparing the size V of the composite vector with a reference value to determine whether the size V of the composite vector is adequate, calculating an angle θ based on the relationship between the magnitudes of the motions when V is determined to be adequate, calculating a body motion output M taking the angle θ into account, and counting a predetermined body motion based on the relationship between M and a predetermined elapsed time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.