Magnetic recording device
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorsShino Zaima, Koji Sonoda
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Abstract
According to one embodiment, a magnetic recording device includes a recording medium, a magnetic head including a light source, a light emitting element, and a sensor, and a controller including an inspection circuit which detects a height of a defect of the recoding medium based on output of the sensor, a memory recording the height of the defect, and a setting circuit which sets an upstream side record/reproduce prohibited sector on an upstream side of the defect, in a travel direction of the magnetic head, on a track of the recording medium on which the defect is present, and which sets a downstream side record/reproduce prohibited sector longer in track direction than the upstream side record/reproduce prohibited sector on a downstream side of the defect.
Claims5
A magnetic recording device comprising:
- a disk-shaped recording medium;
- a magnetic head including a recording element, a light source, a light emitting element emitting light onto a recording surface of the recording medium, and a sensor which detects a defect on the recording surface of the recording medium;
- and
- a controller including an inspection circuit which detects a height of the defect on the recording surface of the recording medium based on output of the sensor, a memory which stores the detected height of the defect, a setting circuit which sets an upstream side record/reproduce prohibited sector on an upstream side of the defect, in a travel direction of the magnetic head, on a track of the recording medium on which the defect is present, and which sets a downstream side record/reproduce prohibited sector longer in track direction than the upstream side record/reproduce prohibited sector on a downstream side of the defect, and a light source control circuit controlling output of the light source.
Dependencies are inferred from the claim text.