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发明名称
SELECTIVE CALL RECEIVER
摘要
<p>A method for operating a vibrating motor (15) in a selective call receiver (10) comprises the step of driving the vibrating motor (15) with a variable duty cycle signal (Figure 3) for slowly increasing the intensity of the vibration.</p>
申请公布号
WO1991006932(A1)
申请公布日期
1991.05.16
申请号
US1990006040
申请日期
1990.10.22
申请人
发明人
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