Automatic power adjustment system for introductory use of a vibrating device on a human body
US6140802A · kind A · utility
23Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1999 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Aug 6, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Driving power for a vibrating device is provided at less than full level when the device is initially used. Power is gradually increased in successive steps after a selected number of uses in each step until full power is achieved. Also, a battery-energized driving signal for a vibrating device has a selected characteristic, such as duty cycle, which is set initially at less than an optimum value, when the battery is at full strength. As the battery discharges, the selected characteristic is adjusted toward optimum so as to compensate for reduction in the battery voltage and ensure full power output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.