Method and apparatus for boosting an audible signal in a notification system
US7428311B2 · kind B2 · utility
3Cited by
3References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2002 |
| Grant date | Sep 23, 2008 |
| Priority date | — |
| Expiry date | Oct 11, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R29/007
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention is an apparatus and a concomitant method for boosting the audio signal generated by at least one notification appliance in a supervised emergency voice evacuation system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.