发明名称 Mobile telecommunications terminal with hands-free operation
摘要 The mobile telecommunications terminal (MF) includes a receiver inset (HK) and a microphone (M), which work together with a conversation circuit (SC), whereby a lower volume level is provided by the receiver inset for an operation of the telecommunications terminal at the ear of a subscriber. An operating element (BE) is arranged in such way, that the conversation circuit is switched in a condition of an existing telephone conversation to a high volume level produced by the receiver inset for a hands-free operation. An additional dynamic speaker may be arranged at the back of the telecommunications terminal for producing the high volume level signal.
申请公布号 DE19732916(A1) 申请公布日期 1998.12.03
申请号 DE19971032916 申请日期 1997.07.30
申请人 SIEMENS AG, 80333 MUENCHEN, DE 发明人 KAPTEINA, ERICH, DIPL.-ING., 48734 REKEN, DE
分类号 H04M1/60;(IPC1-7):H04M1/00 主分类号 H04M1/60
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