Alarm sensor multiplexing
US5783989A · kind A · utility
38Cited by
10References
24Claims
0Family size
Inventors
Key dates
| Filing date | Feb 28, 1995 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Feb 28, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C2201/62
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A security system for monitoring a protected area and sounding an alarm including a plurality of sensors arranged about a protected area for sensing incoming threat, device for generating at least one pulse for each sensor activated by the incoming threat to the area, an alarm controller for receipt of the pulses and sounding of an alert, and a single wire connecting outputs of the sensors to the controller for transmitting the pulses generated by the plurality of sensors to the controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.