发明名称 |
METHOD AND APPARATUS FOR REDUCING ACOUSTIC NOISE IN A HARD DISK DRIVE |
摘要 |
A hard disk drive which moves a transducer across a disk surface so that the transducer has an essentially sinusoidal acceleration trajectory. The transducer may be integrated into a slider that is incorporated into a head gimbal assembly. The head gimbal assembly may be mounted to an actuator arm which can move the transducer across the disk surface. The movement of the actuator arm and the transducer may be controlled by a controller. The controller may move the transducer from a first track to a new track in accordance with a seek routine and a servo control routine. During the seek routine the controller may move the transducer in accordance with a sinusoidal acceleration trajectory. The sinusoidal trajectory may reduce the high harmonics found in square waveforms of the prior art, and thus minimize the acoustic noise of the head gimbal assembly and reduce the settling time of the transducer for reducing the duration of the seek routine.
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申请公布号 |
US2001050827(A1) |
申请公布日期 |
2001.12.13 |
申请号 |
US19980167884 |
申请日期 |
1998.10.07 |
申请人 |
KANG CHANG-IK;LEE KANG-SEOK |
发明人 |
KANG CHANG-IK;LEE KANG-SEOK |
分类号 |
G11B21/08;G05D3/12;G11B5/55;G11B21/12;(IPC1-7):G11B5/596 |
主分类号 |
G11B21/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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