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US 2007/0183078 A1Published application
Apparatus for controlling space between head and medium
AssigneeFujitsu Limited
InventorHiroki Matsushita
Life of this patent
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Abstract
A voltage applying unit applies a voltage to a plurality of capacitors respectively formed in series by the recording medium and a plurality of electrode plates arranged on the head. A space control unit controls a space between the recording medium and the head based on a response of the capacitors to the voltage applied by the voltage applying unit.
Claims20
An apparatus for controlling a space between a head and a recording medium in a magnetic disk device, the apparatus comprising:
- a voltage applying unit that applies a voltage to a plurality of capacitors respectively formed in series by the recording medium and a plurality of electrode plates arranged on the head;
- and
- a space control unit that controls the space between the head and the recording medium based on a response of the capacitors to the voltage applied by the voltage applying unit.
A storage apparatus comprising:
- a recording medium for recording data;
- a head for accessing the data recorded on the recording medium;
- and
- a space control apparatus that controls a space between the head and the recording medium, wherein
- the space control apparatus includes
- a voltage applying unit that applies a voltage to a plurality of capacitors respectively formed in series by the recording medium and a plurality of electrode plates arranged on the head;
- and
- a space control unit that controls the space between the head and the recording medium based on a response of the capacitors to the voltage applied by the voltage applying unit.
5 more elements
Dependencies are inferred from the claim text.