发明名称 |
Harmonic shaping of a motor |
摘要 |
A device includes a magnet and a magnetizer. The magnetizer is operable to rotate with respect to the magnet. The rotation generates an acoustic pure tone at a particular frequency. A combination of the magnet and the magnetizer has a magnetic profile. The combination is altered to superimpose a particular harmonic shape on the magnetic profile to reduce the acoustic pure tone at the particular frequency. |
申请公布号 |
US8917479(B2) |
申请公布日期 |
2014.12.23 |
申请号 |
US201313892164 |
申请日期 |
2013.05.10 |
申请人 |
Seagate Technology LLC |
发明人 |
Kim Ungtae;Flores Paco G. |
分类号 |
G11B19/20 |
主分类号 |
G11B19/20 |
代理机构 |
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代理人 |
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主权项 |
1. An apparatus comprising:
a motor magnet; and a magnetizer core, wherein a combination of said motor magnet and said magnetizer core comprises a magnetic profile, and wherein said combination is configured to superimpose a particular harmonic shape on said magnetic profile, wherein said superimposing of said harmonic shape is operable to reduce an acoustic pure tone at a particular frequency. |
地址 |
Cupertino CA US |