Method and apparatus of eliminating interference in an undersettled electrical signal
US5511010A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 1994 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Jun 10, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2851
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention includes a method of eliminating interference from an undersettled electrical signal, the undersettled electrical signal including a test signal at a known frequency. One embodiment of the present invention includes a method comprising the steps of providing a digitized version of the undersettled electrical signal (at 46); generating a frequency spectrum of the digitized version of the undersettled electrical signal (at 56); spectrally interpolating the frequency spectrum to generate an interference signal frequency spectrum (at 65); and subtracting the interference signal frequency spectrum (at 65) from the undersettled signal frequency spectrum (at 56) generating a settled signal spectrum (at 75). Another embodiment of the present invention includes a system comprising means (40 or 45) responsive to the undersettled electrical signal for producing a digitized version of the undersettled electrical signal (at 46); means (50) responsive to the digitized version of the undersettled signal for transforming the digitized version of the undersettled signal into a transformed signal; and means (60 and 70) including a spectral interpolator (60) responsive to the tr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.