| 摘要 |
<p>An alerting system (11) for a hard of hearing or deaf person comprising an externally powered electric alerting device (15) comprising an electric vibrating element (43) configured to generate, upon being powered, vibrations of said alerting device (15), and a sound producing means (45) independent of said vibrating element (43) and adapted to produce an alerting sound (35); an electric activating device (13) separate from said alerting device (15) and connected to said alerting device (15) by an electric power cable (37), wherein said activating device (13) is configured to provide electric power supply to said alerting device (15) through said power cable (37) if triggered by an alarm signal, wherein said sound producing means (45) is adapted to generate said alerting sound (35) fully on its own from a supply voltage provided by said electric activating device (13) through said power supply cable (37), only.</p> |
