Spoofer detection power management for GPS receivers
US5995042A · kind A · utility
34Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1997 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Jan 2, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04K3/90
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a GPS receiver, power is conserved by powering down P-code circuitry during and utilizing C/A code circuits during times when interfering signals, such as spoofing signals, are not detected. When spoofing is detected, the P-code circuitry is powered up so that the GPS receiver can continue to operate in the presence of spoofing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.