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US 7,548,390 B2Granted
HDD write control method and apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsJung-ho Lee, Da-woon Chung
Life of this patent
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Abstract
A Hard Disk Drive (HDD) and related write control method are disclosed. The write control method includes; detecting a free fall state during a current write operation to a current sector, waiting until completion of the current write operation to the current sector, and thereafter stopping the current write operation and unloading a read/write head performing the current write operation.
Claims17
A write control method for a hard disk drive (HDD), comprising:
- detecting a free fall state during a write operation of the HDD, the write operation including writing data to a current sector of the HDD when the free fall state is detected;
- determining when the write operation completes writing the data to the current sector after detecting the free fall state;
- and
- when the write operation completes writing the data to the current sector, interrupting the write operation and unloading a read/write head performing the write operation.
1 more element
A hard disk drive (HDD) comprising:
- a head adapted to write data to a disk during a write operation, the disk comprising a plurality of sectors;
- means for loading and unloading the head from the disk;
- a free fall sensor for detecting a free fall state and outputting a corresponding free fall detection signal, the write operation including writing data to a current sector of the HDD when the free fall state is detected;
- and
- a controller for determining when the write operation completes writing the data to the current sector in response to the free fall detection signal, controlling the means for loading and unloading to unload the head from the disk immediately after the write operation completes writing the data to the current sector, and interrupting the write operation.
2 more elements
A write control method for a hard disk drive (HDD), comprising:
- initiating a write operation comprising writing data to a plurality of sectors of the HDD;
- detecting a free fall state during the write operation;
- determining whether data is being written to a current sector of the plurality of sectors when the free fall state is detected;
- when the data is being written to the current sector, continuing the write operation until the current sector is complete;
- interrupting the write operation after the current sector is complete;
- and
- unloading a read/write head performing the write operation.
4 more elements
Dependencies are inferred from the claim text.