- 专利标题: Method and apparatus for magnetically recording data with three or more states per unit of data
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申请号: US17227958申请日: 2021-04-12
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公开(公告)号: US11495249B1公开(公告)日: 2022-11-08
- 发明人: Ian James Gilbert , Peng Peng , Todd Michael Lammers , Tim Rausch
- 申请人: Seagate Technology LLC
- 申请人地址: US CA Fremont
- 专利权人: Seagate Technology LLC
- 当前专利权人: Seagate Technology LLC
- 当前专利权人地址: US CA Fremont
- 代理机构: Mueting Raasch Group
- 主分类号: G11B5/68
- IPC分类号: G11B5/68 ; G11B5/00 ; G11B5/012
摘要:
Two or more different recording currents are applied to a write coil of a recording head. A first of the two or more currents is a positive current and a second of the two or more currents is a negative current. In response to the application of the two or more different recording currents, a data stream is recorded to regions of a moving continuous magnetic recording medium such that each region has three or more magnetic states. The three or more magnetic states can be read from the continuous magnetic recording medium via a magnetic read transducer to recover the data stream.
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