| 发明名称 |
PUBLIC ADDRESS SYSTEM USING WIRELESS MOBILE COMMUNICATION DEVICES |
| 摘要 |
A public address system is set forth, comprising at least one wireless mobile communication device; a sound system; and a back-end system for selectively receiving a wireless signal from the wireless mobile communication device and transmitting the signal to the sound system for broadcast. |
| 申请公布号 |
CA2690661(C) |
申请公布日期 |
2014.07.29 |
| 申请号 |
CA20102690661 |
申请日期 |
2010.01.21 |
| 申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
MOOSAVI, VAHID;WILSON, SEAN;ROSE, SCOTT |
| 分类号 |
H04R27/00;H04W4/00;H04W12/08;H04W84/18 |
主分类号 |
H04R27/00 |
| 代理机构 |
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