System and method for measuring movement of objects
US5899963A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1997 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Jun 17, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2244/081
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A device that measures the distance traveled, speed, and height jumped of a moving object or a person while running or walking. Accelerometers and rotational sensors are placed in the object or in the sole of one shoe, or in a wrist watch or the waist of the user, along with an electronic circuit that performs mathematical calculations to determine the distance and height. A microprocessor calculates an output speed based upon step-distance and elapsed time, and the distance traveled from the sum of all previous steps. The output of the microprocessor is coupled to a display that shows the distance traveled, speed, or height jumped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.