Method and apparatus for determining a location of a feature on a storage medium
First Claim
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1. An apparatus, comprising:
- a counter configured to generate counts associated with different locations, within a smallest addressable unit of data, on a storage medium of a disk drive;
a detector configured to detect a change in a property of a signal sensed from the storage medium; and
a controller configured to;
determine a count of the counter corresponding to a location, within a smallest addressable data unit on the storage medium, at which the change in the property of the signal sensed from the storage medium is detected, andchange a response of at least one of the detector, a read channel controller of the disk drive, or a servo controller of the disk drive based on (i) the count and (ii) the counter.
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Abstract
A counter is configured to generate counts associated with different locations, within a smallest addressable unit of data, on a storage medium of a disk drive. A detector is configured to detect a change in a property of a signal sensed from the storage medium. A controller is configured to: determine a count of the counter corresponding to a location, within a smallest addressable data unit on the storage medium, at which the change in the property of the signal sensed from the storage medium is detected, and change a response of at least one of the detector, a read channel controller of the disk drive, or a servo controller of the disk drive based on (i) the count and (ii) the counter.
37 Citations
21 Claims
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1. An apparatus, comprising:
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a counter configured to generate counts associated with different locations, within a smallest addressable unit of data, on a storage medium of a disk drive; a detector configured to detect a change in a property of a signal sensed from the storage medium; and a controller configured to; determine a count of the counter corresponding to a location, within a smallest addressable data unit on the storage medium, at which the change in the property of the signal sensed from the storage medium is detected, and change a response of at least one of the detector, a read channel controller of the disk drive, or a servo controller of the disk drive based on (i) the count and (ii) the counter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method, comprising:
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running a counter, wherein counts of the counter are associated with different locations, within a smallest addressable unit of data, on a storage medium of a disk drive; detecting, with a detector device, a change in a property of a signal sensed from the storage medium; determining, with a controller device, a count of the counter corresponding to a location at which the change in the property of the signal sensed from the storage medium is detected; and changing, with the controller, a response of at least one of the detector device, a read channel controller device of the disk drive, or a servo controller device of the disk drive based on (i) the count and (ii) the counter. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification