发明名称 A METHOD AND AN APPARATUS FOR DAMPING A SONIC SIGNAL
摘要 A method for limiting the sound volume in an earphone, a headset (8), or the like, to a maximum permitted level, entails that an input signal (2) is sensed by a processor (4) and damped by a damper (6) if it is excessively high. Thereafter, the signal (7) is transmitted to the earphone, the headset (8), or the like. The processor (4) switches between an active mode and a rest mode. An apparatus for limiting the sound volume according to the method includes a microprocessor (4) and a damper (6).
申请公布号 US2010128903(A1) 申请公布日期 2010.05.27
申请号 US20090597980 申请日期 2009.10.28
申请人 3 M SVENSKA AB 发明人 KIHLBERG ROGER;KAAREKULL OSCAR
分类号 H03G3/00 主分类号 H03G3/00
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