Calibrating high resolution measurements
US6266625A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1999 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Mar 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G3/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is described a method and system for calibrating measurements, in particular for calibrating a high resolution counter against an accurate real time calibrated clock signal. The method comprising obtaining the calibrated low resolution clock measurement and the corresponding high resolution counter measurement and calculating a range of possible corrections to the counter measurement to align it with the clock measurement. The correction range is adjusted to make it consistent with a previously stored correction range and a value is taken from it to calibrate the counter measurement. If the calculated range and the stored range are inconsistent then only the calculated range is used. A further measurement of the clock or counter is taken to double check.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.