Low battery warning silencing in life safety devices
US7508314B2 · kind B2 · utility
16Cited by
157References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2005 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Oct 17, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/181
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A life safety device can include a battery monitoring module configured to measure a voltage level of a battery, an alarm module configured to provide an alarm when the voltage level is less than or equal to a low battery threshold, and a silence module configured to silence the alarm for a random time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.