发明名称 Radio system with cordless remote PTT module
摘要 A radio system comprises a radio having a transmit mode. A press to talk (PTT) switch is located in a remote module having a transmitter that transmits a signal to a receiver associated with the radio. In response, the receiver opens a communication channel to the radio. The remote module enables the PTT switch to be located at a convenient location to the operator.
申请公布号 US7010275(B2) 申请公布日期 2006.03.07
申请号 US20020168352 申请日期 2002.10.28
申请人 DAVIES INDUSTRIAL COMMUNICATIONS LIMITED 发明人 DAVIES JOHN
分类号 H04B1/38;H04B1/40;H04B1/08;H04B1/44;H04B7/26;H04M1/00;H04M1/247 主分类号 H04B1/38
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