Method and apparatus to detect ambulation
US8206323B2 · kind B2 · utility
1Cited by
0References
5Claims
0Family size
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Key dates
| Filing date | Dec 21, 2007 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | Apr 25, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0219
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Low frequency harmonics detected by an accelerometer in a wrist-mounted device are used to infer ambulation. The fundamental rhythm or pitch is extracted from gathered accelerometer data and the determined pitch and associated properties are used to infer whether a subject is walking or not walking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.