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US 2009/0268338 A1Published application
Data storage disk having variable location signal and disk drive using the data storate disk
AssigneeSamsung Electronics Co., Ltd.
InventorsKum-Jung Song, Sang Hoon Chu
Life of this patent
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Abstract
A hard disk drive includes a magnetic head, at least one disk and a controller. A location signal is recorded on the at least one disk for determining a location of the magnetic head in relation to the at least one disk. The controller controls the location of the magnetic head based on the location signal decoded through the magnetic head. At least one of frequency and amplitude of the location signal is variable.
Claims10
A hard disk drive comprising:
- a magnetic head;
- at least one disk on which a location signal is recorded for determining a location of the magnetic head in relation to the at least one disk;
- and
- a controller for controlling the location of the magnetic head based on the location signal decoded through the magnetic head,
- wherein at least one of frequency and amplitude of the location signal is variable.
2 more elements
A disk for data storage, the disk comprising:
- a data sector in which data is recorded;
- and
- an information sector in which information is recorded for accessing the data sector, the information sector including a variable location signal for recognizing a location of an access device configured to access the data recorded in the data sector.
Dependencies are inferred from the claim text.