Police radar/laser detector with integral vehicle parameter display using a vehicle interface
US6836238B1 · kind B1 · utility
5Cited by
59References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 30, 2003 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Jun 30, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2007/52012
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of factory calibrating a police radar/laser detector including a controller, an accelerometer, and a memory, by manipulating the detector to rotate the accelerometer, measuring and feeding real time measurements from the accelerometer to a Least Squares Elliptical Fit algorithm executed by the controller, applying the Least Squares Elliptical Fit algorithm to the real time measurements to find the equation of an ellipse formed by the measurements, storing the coefficients of the ellipse in the memory. The coefficients are then recalled from the memory to thereby calibrate the accelerometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.