Emergency locating system and method using spread-spectrum transceiver
US8183999B1 · kind B1 · utility
25Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2009 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Dec 14, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/0266
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An emergency locating system can include emergency transceivers and locator transceivers. The emergency transceivers can be capable of transmission of spread-spectrum encoded messages, and can be actuated by a user to send a distress message. A locator transceiver can be capable of receiving the distress messages and performing two-way ranging to determine a distance between the locator transceiver and the emergency transceiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.