发明名称 |
Disk device and method of changing rotational speed of disk device |
摘要 |
A disk drive includes a disk motor for rotating a disk, a disk motor driving unit for driving the disk motor, and a controlling unit for controlling the disk motor driving unit. When an upper limit value of a disk rotation speed is received as an input value, the input value is interpreted as a rotation speed specification, so that a command packet including the upper limit value of the disk rotation speed is generated to output it to a controlling unit. The controlling unit sets the upper limit value of the disk rotation speed included in the command packet to the disk motor driving unit. The disk motor driving unit drives the disk motor at the upper limit value of the set disk rotation speed.
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申请公布号 |
US6940793(B2) |
申请公布日期 |
2005.09.06 |
申请号 |
US20010936361 |
申请日期 |
2001.09.13 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YAMASHITA AKIYOSHI;YAMAHANA MASATSUGU;KAMBE SHIN'ICHI |
分类号 |
G11B19/02;G06F3/06;G11B19/26;G11B19/28;(IPC1-7):G11B5/09 |
主分类号 |
G11B19/02 |
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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