发明名称 |
A VIBRATOR AND A METHOD OF CONTROLLING A VIBRATOR |
摘要 |
In a method of controlling a vibrator, the vibrator is first driven towards a first frequency during a first interval and then is driven towards a second frequency during a second interval. In a preferred embodiment the first frequency is higher than the lowest resonance frequency of the vibrator and the vibrator is then allowed to reduce the frequency to a frequency lower than the resonance frequency. By letting the frequency vary in a pulsating manner in the vibrating device, the vibration can be sensed more easily by a human, and thereby making it possible to use a very small mass in the vibrating device, which therefore can be made using a small weight, while still making it possible to sense the vibration. |
申请公布号 |
WO0055824(A1) |
申请公布日期 |
2000.09.21 |
申请号 |
WO2000SE00500 |
申请日期 |
2000.03.14 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
EDGREN, ANDERS;HANSSON, MAGNUS;VATANKHAH, MOHAMMAD |
分类号 |
G08B6/00;B06B1/02;B06B1/04;B06B1/16;H04M1/00;H04R1/00;H04R3/00;(IPC1-7):G08B6/00 |
主分类号 |
G08B6/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|