Alarm transmission apparatus
US6441731B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Mar 16, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Mar 16, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/3431
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A portable alarm system in which the alarm functions are contained within a portable enclosure, communication is maintained between the alarm system and wireless security devices, and the alarm is capable of initiating a telephone call to a security monitoring station either by conventional hard-wired telephone lines by cellular transmission, by 1900 megahertz PCS or by other wireless technology. The system may include a wireless/cordless line seizure feature to use a nearby landline if the system is plugged into a landline that has been disabled. The system may also include a vibration/shock sensor to activate the alarm functions if the portable unit is moved or attempted to be destroyed by an intruder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.