Data link and method
US5835059A · kind A · utility
97Cited by
37References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1995 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Sep 1, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/91
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This is a Mode S radio frequency transmission system with coordinated use of a rotating directional antenna and omnidirectional antennas. A software-implemented prefilter both processes messages destined for aircraft equipped with Mode S datalink capable transponders, and prevents any uplink message transmission to a transponder from coinciding with the once-per-scan surveillance interrogation from the rotating antenna as well as any datalink interrogations specified for transmission through the rotating antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.