发明名称 |
SOUND AMPLIFIER ACTIVATION DEVICE, SOUND-INCREASING AMPLIFIER, AND REMOTE BROADCAST SYSTEM |
摘要 |
A remote broadcast system according to the present invention has a sound amplifier activation device which turns on the sound amplifier when the level of a sound input inputted from a smartphone slave unit exceeds a threshold, and which turns off the sound amplifier when the state where the level of a voice input for outputting broadcast voice signals obtained by amplifying the inputted sound signals to a broadcast speaker is maintained at less than the threshold for a predetermined time period. A broadcaster can select smartphone slave stations from a smartphone master unit to connect communication lines between the smartphone master unit and the smartphone slave stations. This enables the broadcaster to broadcast escape guidance during an evacuation. |
申请公布号 |
WO2016190417(A1) |
申请公布日期 |
2016.12.01 |
申请号 |
WO2016JP65747 |
申请日期 |
2016.05.27 |
申请人 |
QUESTAR INC. |
发明人 |
OISHI, Mamoru |
分类号 |
H04M11/04;G08B25/10;G08B25/12;G08B27/00 |
主分类号 |
H04M11/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|