Loading patent…
AssigneeMarvell World Trade Ltd.
InventorNitin Nangare
Estimating the term…
A storage device includes read circuitry having a read head having a detector that outputs signals representing data from a first track and an adjacent track. The read head is subject to off-track excursions during which the read head detects signals from both the first track and an adjacent track. Data on each track includes a preamble including a repeating pattern. The repeating pattern in any first track is orthogonal to the repeating pattern in any track adjacent to the first track. The read circuitry also includes respective Discrete Fourier Transform circuits to identify components in the signals corresponding to respective frequencies characteristic of the repeating pattern on the first track and the repeating pattern on the second track, and computation circuitry to determine from the components a ratio by which the read head is off-track. Corresponding methods are provided for operating such a storage device and for reading data.
1-20. (canceled)
A method of operating a storage device having a storage medium, the method comprising:
A method of reading data from a storage device having a storage medium to which data are written in tracks, with data on each track including a preamble outside servo wedges of the storage medium, wherein the preamble on any selected track and the preamble on any track adjacent to the selected track are mutually exclusive, the method comprising:
A storage device comprising:
Dependencies are inferred from the claim text.