Title:
SOUND AMPLIFIER ACTIVATION DEVICE, SOUND-INCREASING AMPLIFIER, AND REMOTE BROADCAST SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/190417
Kind Code:
A1
Abstract:
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.
Inventors:
OISHI MAMORU (JP)
Application Number:
PCT/JP2016/065747
Publication Date:
December 01, 2016
Filing Date:
May 27, 2016
Export Citation:
Assignee:
QUESTAR INC (JP)
International Classes:
H04M11/04; G08B25/10; G08B25/12; G08B27/00; H04W4/90
Foreign References:
| JP2010530658A | 2010-09-09 | |||
| JPH11289232A | 1999-10-19 | |||
| JPH10312676A | 1998-11-24 | |||
| JP2003308581A | 2003-10-31 | |||
| JP2010130286A | 2010-06-10 | |||
| JP2014164640A | 2014-09-08 | |||
| JP2015033022A | 2015-02-16 | |||
| JP2014039352A | 2014-02-27 | |||
| JP3187291U | 2013-11-21 |
Attorney, Agent or Firm:
MATSUSHITA, MASAHIRO (JP)
Matsushita Masahiro (JP)
Matsushita Masahiro (JP)
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