公开(公告)号：US09313621B2

公开(公告)日：2016-04-12

申请号：US14253521

申请日：2014-04-15

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Mun Yew Tham ,  Bing Yee Hong ,  Ting Fook Tang ,  Chia Chuan Wu

IPC: H04B7/00 ,  H04W4/10 ,  H04B1/46 ,  H04W88/06 ,  H04W76/00 ,  H04W84/08

CPC classification number: H04W4/10 ,  H04B1/46 ,  H04W76/45 ,  H04W84/08 ,  H04W88/06

Abstract: A method for automatically switching to a channel for transmission on a portable radio is provided. In operation, a first microphone is assigned to respond to communications received on a primary channel and a second microphone is assigned to respond to communications received on a non-primary channel. The portable radio receives independent audio communications simultaneously on the primary channel and the non-primary channel when operating in a multi-watch mode. The portable radio determines a signal gain corresponding to a voice command received at the first and second microphones. When the signal gain for the first microphone is larger than the signal gain for the second microphone, the portable radio switches to a first talk-back channel to respond to communications received on the primary channel. Otherwise, the portable radio switches to a second talk-back channel to respond to communications received on the at least one non-primary channel.

Abstract translation: 提供了一种用于自动切换到便携式无线电台上用于传输的信道的方法。 在操作中，分配第一麦克风以响应在主信道上接收的通信，并且分配第二麦克风以响应在非主信道上接收的通信。 便携式无线电在多监视模式下操作时，在主信道和非主信道上同时接收独立音频通信。 便携式无线电装置确定与在第一和第二麦克风接收的语音命令相对应的信号增益。 当第一麦克风的信号增益大于第二麦克风的信号增益时，便携式无线电设备切换到第一对讲信道以响应在主信道上接收到的通信。 否则，便携式无线电装置切换到第二对讲信道以响应在至少一个非主信道上接收的通信。