Magnetic disk device and read processing method
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorNobuhiro Maeto
Life of this patent
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Abstract
According to one embodiment, a magnetic disk device includes a disk, a head that writes data to the disk and reads data from the disk, and a controller that corrects a first signal into a first likelihood value by machine learning based on a correct learning signal set with a likelihood other than 1 and an incorrect learning signal set with a likelihood other than 0 and executes error correction processing based on a second likelihood value according to the first signal and the first likelihood value.
Claims20
A magnetic disk device comprising:
- a disk;
- a head that writes data to the disk and reads data from the disk;
- and
- a controller that corrects a first signal into a first likelihood value by machine learning based on a correct learning signal set with a likelihood other than 1 and an incorrect learning signal set with a likelihood other than 0 and executes error correction processing based on a second likelihood value according to the first signal and the first likelihood value.
A read processing method for a magnetic disk device which includes a disk and a head that writes data to the disk and reads data from the disk, the method comprising:
- correcting a first signal into a first likelihood value by machine learning based on a correct learning signal set with a likelihood other than 1 and an incorrect learning signal set with a likelihood other than 0;
- and
- executing error correction processing based on a second likelihood value according to the first signal and the first likelihood value.
Dependencies are inferred from the claim text.