Spectral analysis of a position error signal
US7742250B2 · kind B2 · utility
2Cited by
22References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2007 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Aug 14, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6076
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure is directed to spectral analysis of a position error signal. In a particular embodiment, the method includes analyzing a spectral content of a position error signal. The method also includes comparing the spectral content to a threshold. Further, the method includes determining a result based on the comparing the spectral content to the threshold. In another particular embodiment, the spectral content of the position error signal is determined by performing a discrete fourier transform (DFT) on the error signal, determining a magnitude of the DFT output, and low pass filtering the magnitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.