Electric toothbrush
US9144476B2 · kind B2 · utility
15Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2009 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Jul 4, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/582
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A three-axis acceleration sensor is mounted to a body of an electric toothbrush. A CPU detects the three-dimensional attitude of the body based on an output from the acceleration sensor and, based on the attitude of the toothbrush, estimates which portion is being brushed. Then, the CPU performs control for switching between operation modes (such as the rotational direction of a motor and the frequency of vibration of the brush) according to the estimated portion being brushed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.