Hard disk drive having dual micro-actuators on carriage arms
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorsKoichiro Miyamoto, Kenichiro Oozeki, Yu Chen
Life of this patent
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Abstract
According to one embodiment, there is provided a hard disk drive including a first recording surface, a second recording surface, a first magnetic head, a first actuator and a second actuator that move the first magnetic head, a second magnetic head, a third actuator and a fourth actuator that move the second magnetic head, a fifth actuator that moves the second actuator and the fourth actuator, a drive circuit that implements at least one of a first mode in which the second actuator and the fourth actuator operate differently from each other or a second mode in which the first and third actuators operate differently from each other, and a controller that controls the drive circuit.
Claims14
A hard disk drive comprising:
- a plurality of recording surfaces including a first recording surface and a second recording surface;
- a first magnetic head that performs reading/writing on the first recording surface;
- a second magnetic head that performs reading/writing on the second recording surface;
- a first actuator and a second actuator that move the first head;
- a third actuator and a fourth actuator that move the second head;
- a fifth actuator that moves the second actuator and the fourth actuator in an integrated manner;
- a drive circuit that switches a combination of actuators to be operated independently among the first to fourth actuators;
- and
- a controller that controls the drive circuit.
Dependencies are inferred from the claim text.