Vibration device and method for controlling the same
US11092440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2018 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Mar 2, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB81B2201/0242
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
According to one embodiment, a method for controlling a vibration device includes a movable body capable of vibrating in a first direction, and a catch and release mechanism capable of catching the movable body that freely vibrates in the first direction, by an electrostatic attractive force, and releasing the caught movable body to freely vibrate the movable body in the first direction, wherein in a condition that tc is a time from a rise start time point to a rise end time point of an applied voltage for catching the movable body that freely vibrates in the first direction, by the electrostatic attractive force, and td is a period of the free vibration in the first direction of the movable body, the time tc is longer than the time td.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.