Patrol speed acquisition in police Doppler radar
US6501418B1 · kind B1 · utility
19Cited by
12References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2002 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Apr 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/92
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process and apparatus to automatically determine whether a police radar is installed in a vehicle which has a coupling between a vehicle speed sensor and the police radar. The process automatically, without any operator input, determines the correct ratio between the true ground speed and the frequency output by vehicle speed sensor at that ground speed. The process and apparatus then use that ratio and the frequency from the vehicle speed sensor to establish a software search window that limits the speed range of the search by the police traffic radar for the true ground speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.