Data processor and data processing method for wavemeter
US6690977B1 · kind B1 · utility
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1References
2Claims
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Key dates
| Filing date | Sep 29, 2000 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Jan 6, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J9/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A DSP#B 6 executes, prior to data conversion, interpolation (see FIG. 2) in order to interpolate discrete spectra obtained via the FFT processing by a DSP#A 5. In the interpolation, the DSP#B 6 executes two-point interpolation if the difference between two discrete spectrum data pieces F(j) and F(j+1) is greater than a predetermined threshold &egr; and four-point interpolation if the difference is smaller than &egr;.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.