Spectral analysis of a position error signal

Details Spectral analysis of a position error signal Spectral analysis of a position error signal

2007-01-12

2010-06-22

Feild, Joseph H (Department: 2627)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

C360S030000, C360S043000

Reexamination Certificate

active

07742250

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.

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