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General help calling system
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 Audio
help call generation system |
Help
signal transmission system |
| In various emergency
situations, the audio help call generation unit emits a user-definable
help call message of 100 dB or greater to summon attention of the neighbors,
and the help signal transmitting unit transmits user-definable help call
messages to designated recipients through telephone network to thereby
notify them of the emergency situation. |
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