Unintentional RF radiators filter protection for a cospas sarsat emergency locator transmitter (ELT) GNSS receiver
US12019164B1 · kind B1 · utility
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2Claims
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Assignee
Inventors
Key dates
| Filing date | Sep 14, 2021 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Sep 8, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2205/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to an emergency locator transmitter (ELT) that transmits an emergency signal to a global navigational satellite system (GNSS) indicating an aircraft crash location, or an aircraft distress tracker event signal that triggers the ELT to provide location of the aircraft, the ELT including a GNSS RF receiver. The invention ELT includes 406 MHz RF signal blanking switch, a GNSS high pass filter, RF radiator and EMI filter protection for the GNSS receiver to protect the GNSS receiver from 406 MHz emergency signals, unintentional RF radiators and electromagnetic interference (EMI) typically found in aircraft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.