The thermal decay of data written to a magnetic mass storage medium is determined by measuring and analyzing the time-domain equalized-signal-to-noise ratio (ESNR) and equalized signal-to-total-distortion noise ratio (ESTDR) of written data. In some embodiments, a test track and a reference track are...http://www.google.fr/patents/US7209304?utm_source=gb-gplus-shareBrevet US7209304 - Systems, apparatus, and methods to determine thermal decay characterization from an equalized signal-to-noise ratio of a magnetic disc drive device
Systems, apparatus, and methods to determine thermal decay characterization ...