发明名称 Transmitter and receiver combination for searching objects or persons
摘要 The transmitter and receiver combination includes a receiver (6) and a transmitter (1) which transmits radio signals. The receiver includes a sound source (10) whose transmitted signal is acoustically detectable within the entire transmission range from the location of the transmitter. Preferably, the receiver includes reception electronic (7) and has as the sound source a piezo sound source (13). The receiver has a holding clip (12) for attaching the receiver to clothes. Preferably, the transmitter has a range of approximately 40 m.
申请公布号 DE19720243(A1) 申请公布日期 1998.11.19
申请号 DE1997120243 申请日期 1997.05.15
申请人 MEYER, MARTIN, 44629 HERNE, DE 发明人 MEYER, MARTIN, 44629 HERNE, DE
分类号 G08B3/00;G08B25/10;(IPC1-7):G08B25/10 主分类号 G08B3/00
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