Head with multiple readers configured for reading interlaced magnetic recording tracks
First Claim
1. An apparatus, comprising:
- a read head, comprising;
a first read transducer comprising a first crosstrack width and a first shield-to-shield spacing that are optimized to read a first track width and a first linear bit density;
a second read transducer comprising a second crosstrack width different from the first crosstrack width and second shield-to-shield spacing different than the first shield-to-shield spacing, the second crosstrack width and the second shield-to-shield spacing optimized to read a second track width different from the first track width and a second linear bit density different from the first linear bit density; and
a controller coupled to the read head and operable to perform;
selecting the first read transducer for reading a first set of tracks having the first track width and the first linear bit density; and
selecting the second read transducer for reading a second set of tracks interlaced between the first set of tracks, the second set of tracks having the second track width and the second linear bit density.
1 Assignment
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Accused Products
Abstract
First tracks of a disk are read via a first read transducer. The first read transducer has a first crosstrack width and a first shield-to-shield spacing that are optimized to read a first track width and a first linear bit density of the first tracks. Second tracks interlaced between the first tracks are read via a second read transducer. The second read transducer has a second crosstrack width different from the first crosstrack width and second shield-to-shield spacing different than the first shield-to-shield spacing. The second crosstrack width and the second shield-to-shield spacing are optimized to read a second track width different from the first track width and a second linear bit density different from the first linear bit density.
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Citations
20 Claims
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1. An apparatus, comprising:
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a read head, comprising; a first read transducer comprising a first crosstrack width and a first shield-to-shield spacing that are optimized to read a first track width and a first linear bit density; a second read transducer comprising a second crosstrack width different from the first crosstrack width and second shield-to-shield spacing different than the first shield-to-shield spacing, the second crosstrack width and the second shield-to-shield spacing optimized to read a second track width different from the first track width and a second linear bit density different from the first linear bit density; and a controller coupled to the read head and operable to perform; selecting the first read transducer for reading a first set of tracks having the first track width and the first linear bit density; and selecting the second read transducer for reading a second set of tracks interlaced between the first set of tracks, the second set of tracks having the second track width and the second linear bit density. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method, comprising:
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reading first tracks via a first read transducer, the first read transducer comprising a first crosstrack width and a first shield-to-shield spacing that are optimized to read a first track width and a first linear bit density of the first tracks; and reading second tracks interlaced between the first tracks via a second read transducer, the second read transducer comprising a second crosstrack width different from the first crosstrack width and second shield-to-shield spacing different than the first shield-to-shield spacing, the second cross-track width and the second shield-to-shield spacing optimized to read a second track width different from the first track width and a second linear bit density different from the first linear bit density. - View Dependent Claims (13, 14, 15)
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16. An apparatus, comprising:
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a head comprising at least one write transducer and first and second read transducers;
the first read transducer comprising a first crosstrack width and a first shield-to-shield spacing that are optimized to read a first track width and a first linear bit density, the second read transducer comprising a second crosstrack width different from the first crosstrack width and second shield-to-shield spacing different than the first shield-to-shield spacing, the second crosstrack width and the second shield-to-shield spacing optimized to read a second track width different from the first track width and a second linear bit density different from the first linear bit density; anda controller coupled to the head and configured to; record top and bottom interlaced magnetic recording tracks, the top tracks recorded at the first track width and the first linear bit density, the bottom tracks recorded at the second track width and the second linear bit density; and read the top tracks via the first reader and read the bottom tracks via the second reader. - View Dependent Claims (17, 18, 19, 20)
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Specification