发明名称 Dual mode mobile phone operating as a two-way radio
摘要 A dual mode transmitter/receiver adds two-way radio functionality to a frequency division duplex mobile phone. The dual mode transmitter/receiver allows short-range and low-power communication between similarly equipped phones. In the two-way radio mode, the dual mode mobile phone transmits and receives at a frequency between the normal mobile transmit and receive frequency bands so that a number of transmitter/receiver components are utilized for both normal and two-way radio communication.
申请公布号 US6415158(B1) 申请公布日期 2002.07.02
申请号 US19990240578 申请日期 1999.02.01
申请人 LUCENT TECHNOLOGIES INC. 发明人 KING WILLIAM CLIFTON;NARDOZZA GREGG SCOTT
分类号 H04B1/40;H04W88/06;(IPC1-7):H04B1/40 主分类号 H04B1/40
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