System and method for determining patrol speed
US7218271B2 · kind B2 · utility
10Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2004 |
| Grant date | May 15, 2007 |
| Priority date | — |
| Expiry date | Dec 13, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/93272
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for processing vehicle speed data for a vehicle is provided. The system includes a front antenna assembly of the vehicle generating a front digital signal, and a rear antenna assembly of the vehicle generating a rear digital signal. A fast Fourier transform system converts the front digital signal into front frequency shift data and the rear digital signal into rear frequency shift data. A patrol speed system matches the front frequency shift data and the rear frequency shift data and generates a vehicle speed for the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.