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US 9,401,167 B2Granted
Processing servo data from two or more read transducers co-located on a slider
AssigneeSeagate Technology LLC
InventorsPuskal Prasad Pokharel, Riyan Mendonsa
Life of this patent
Estimating the term…
Abstract
Two or more signals are read from two or more respective tracks of a disk drive recording medium using respective two or more read transducers co-located on a slider. The slider is aligned to the two or more tracks in response to the correlation between the two or more signals.
Claims20
A method comprising:
- reading two or more signals from two or more respective tracks of a disk drive recording medium using respective two or more read transducers co-located on a slider;
- determining a correlation between the two or more signals, the correlation being based on a difference between the two or more signals over a period of time;
- and
- aligning the slider to the two or more tracks in response to the correlation.
1 more element
An apparatus comprising:
- a circuit that receives two or more signals from two or more respective tracks of a disk drive recording medium using first and second read transducers co-located on a slider;
- and
- a controller coupled to the circuit and configured to:
- determine a correlation between the two or more signals, the correlation being based on a difference between the two or more signals over a period of time;
- and
- align the slider to the two or more tracks in response to the correlation.
3 more elements
A method comprising:
- reading three signals from two or more tracks of a disk drive recording medium using three read transducers co-located on a slider;
- determining a correlation between two of the three signals, the correlation being based on a difference between the two signals over a period of time;
- and
- aligning the slider to at least one of the two or more tracks in response to the correlation.
1 more element
Dependencies are inferred from the claim text.