发明名称 |
Method and apparatus for controlling a disk drive under a power loss condition |
摘要 |
A method for controlling a motorized data-storage device, including extracting energy from a spindle motor to drive a positioning motor of the data-storage device and other components, such as circuitry. In normal operation of one embodiment, a disk is rotated at a constant velocity by a spindle motor and a read/write head is moved over the disk surface by a voice-coil motor. In the event of a power failure, energy is extracted from the spindle motor to drive the voice-coil motor so the head can be safely moved away from the disk.
|
申请公布号 |
US7161757(B1) |
申请公布日期 |
2007.01.09 |
申请号 |
US20010914170 |
申请日期 |
2001.12.05 |
申请人 |
STMICROELECTRONICS ASIA PACIFIC (PTE) LTD. |
发明人 |
KRISHNAMOORTHY RAVISHANKER;FONG HIN SING |
分类号 |
G11B15/18;G11B19/20;G11B19/22;G11B21/12 |
主分类号 |
G11B15/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|