Staggered bits magnetic recording
AssigneeSeagate Technology LLC
InventorsMehmet Fatih Erden, Steven Douglas Granz, Cheng-Ming Godbey Chow
Life of this patent
Estimating the term…
Abstract
Described are systems, devices and methods for staggered bits magnetic recording. A staggered bits track pattern is recorded on granular magnetic recording media, thereby mapping a data bit sequence onto adjacent tracks so that the bits in one track are staggered relative to the bits in the adjacent track. A read head having an effective cross-track width extending across the tracks is aligned to read a sequence of combined bit signals as the read head is advanced in the down-track direction. Each combined bit signal combines one bit from each adjacent track. A data channel coupled to the read head is used to disambiguate the sequence of combined bit signals, thereby reproducing the data bit sequence.
Claims20
A staggered bits data storage system comprising:
- granular magnetic recording media having a staggered bits track pattern that maps a data bit sequence onto a first track and a second track that are co-adjacent in a cross-track direction, the first track having a first series of bits distributed evenly along a down-track direction, and the second track having a second series of bits distributed evenly along the down-track direction in manner that is a staggered relative to the first series of bits;
- a read head having an effective cross-track reader width extending across the first track and the second track, the read head aligned to read a sequence of combined bit signals when the read head is advanced relative to the first track and the second track in the down-track direction, each combined bit signal combining one bit from the first track and one bit from the second track;
- and
- a data channel coupled to the read head and configured to disambiguate the sequence of combined bit signals to thereby reproduce the data bit sequence.
A method for reading a staggered bits data pattern, comprising the steps of:
- aligning a read transducer across multiple adjacent tracks of bits on a granular recording media, the bits on the adjacent tracks forming a staggered bits pattern that stores a data bit sequence;
- advancing the read transducer along the multiple adjacent tracks to thereby read a sequence of combined bit signals, each combined bit signal combining one bit from each of the multiple adjacent tracks;
- decoding the sequence of combined bit signals to thereby reproduce the data bit sequence.
Dependencies are inferred from the claim text.