Implementing data track pitch adjustment under operational vibration conditions
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorsAbhishek Dhanda, Toshiki Hirano, Tetsuo Semba, Zvonimir Z. Bandic
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Abstract
A method, apparatus and a data storage device are provided for implementing data track pitch adjustment for data written on a recordable surface of a storage device under operational vibration conditions. An operational vibration disturbance spectrum is detected during a write operation and the data track pitch is selectively adjusted based on the detected operational vibration disturbance spectrum. The adjusted track pitch information is saved and used during a read operation.
Claims20
A method for implementing data track pitch adjustment for data written on a recordable surface of a storage device under operational vibration conditions comprising:
- detecting an operational vibration disturbance spectrum during a write operation;
- adjusting the data track pitch of data being written based on the detected operational vibration disturbance spectrum;
- and
- saving the adjusted track pitch information for use during a read operation.
An apparatus for implementing data track pitch adjustment for data written on a recordable surface of a storage device under operational vibration conditions comprising:
- an operational vibration sensor detecting an operational vibration disturbance spectrum during a write operation;
- a controller coupled to said operational vibration sensor, said controller adjusting the data track pitch of data being written based on the detected operational vibration disturbance spectrum;
- and
- said controller saving the adjusted track pitch information for use during a read operation.
A data storage device comprising:
- at least one disk;
- said disk including a recordable surface;
- an operational vibration sensor detecting an operational vibration disturbance spectrum during a write operation;
- a controller coupled to said operational vibration sensor, said controller adjusting the data track pitch of data being written based on the detected operational vibration disturbance spectrum;
- and
- said controller saving the adjusted track pitch information for use during a read operation.
Dependencies are inferred from the claim text.