System for displaying time-related occurrence of alarm-type events
US4581605A · kind A · utility
19Cited by
4References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 13, 1984 |
| Grant date | Apr 8, 1986 |
| Priority date | — |
| Expiry date | Feb 13, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B25/14
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An information display is provided to denote both (1) specific events, such as alarm of a smoke detector or unauthorized entry into a building, and (2) the time elapsed between successive events. The event identification data are stored in conjunction with data representing the time elaspsed since the occurrence of the previous event. The display can be cleared, and reconstituted at a rate related to the original rate at which the events occurred, selected by the viewer. The information regarding events and time differences can be stored and saved in a memory external to the timed-replay portion of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.