CHANGING AMPLITUDE OF MOVEMENT BY CHANGING THE DRIVE FREQUENCY OF A TOOTHBRUSH BRUSHHEAD
摘要
<p>The drive system drives a brushhead at a driving frequency. The drive system includes a frequency modulation system which changes. the driving frequency about a center frequency in such a manner, with selected frequency deviation and modulation frequency, which interacts with the resonance of the brushhead to produce a change of amplitude in the movement of the brushhead within a range of 5-30%.</p>
申请公布号
WO2005058188(A1)
申请公布日期
2005.06.30
申请号
WO2004IB52741
申请日期
2004.12.09
申请人
KONINKLIJKE PHILIPS ELECTRONICS, N.V.;LILLEY, RONALD C.;HALL, SCOTT E.;PACE, JOHN W.;BRYANT, WILLIAM E.;GREZ, JOSEPH W.
发明人
LILLEY, RONALD C.;HALL, SCOTT E.;PACE, JOHN W.;BRYANT, WILLIAM E.;GREZ, JOSEPH W.