| 发明名称 | Method of reducing thermal stress within a magnetic head | ||
| 摘要 | Devices and methods for reducing thermal stress within a head of a storage device are disclosed. In one or more embodiments, a method includes writing a selected pattern to a storage medium of a storage device using a head of the storage device; reading the selected pattern from the storage medium using the head to provide a data signal; and calculating an instability value of the head based on the data signal. The method can further include reconfiguring the storage device if the instability value is greater than an instability threshold by performing at least one of: deactivating a heater if the head includes two or more heaters; and increasing a fly height between the head and the storage medium. | ||
| 申请公布号 | US9013820(B1) | 申请公布日期 | 2015.04.21 |
| 申请号 | US201414259598 | 申请日期 | 2014.04.23 |
| 申请人 | Seagate Technology LLC | 发明人 | Camalig Clifford Jayson Bringas;Chuan Gan Swee;Yang Kai K.;Chai Mui Chong |
| 分类号 | G11B5/02;G11B20/10 | 主分类号 | G11B5/02 |
| 代理机构 | Mueting, Raasch & Gebhardt | 代理人 | Mueting, Raasch & Gebhardt |
| 主权项 | 1. A method comprising: writing a selected pattern to a storage medium of a storage device using a head of the storage device; reading the selected pattern from the storage medium using the head to provide a data signal; calculating an instability value of the head based on the data signal by either calculating a standard deviation of a harmonic amplitude of the data signal or calculating a standard deviation of a channel statistic measurement (CSM) variation of the data signal; and reconfiguring the storage device if the instability value is greater than an instability threshold by performing at least one of: deactivating a heater if the head comprises two or more heaters; andincreasing a fly height between the head and the storage medium. | ||
| 地址 | Cupertino CA US | ||