Invention Grant
- Patent Title: Method and apparatus for magnetically recording data with three or more states per unit of data
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Application No.: US17227958Application Date: 2021-04-12
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Publication No.: US11495249B1Publication Date: 2022-11-08
- Inventor: Ian James Gilbert , Peng Peng , Todd Michael Lammers , Tim Rausch
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Fremont
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Fremont
- Agency: Mueting Raasch Group
- Main IPC: G11B5/68
- IPC: G11B5/68 ; G11B5/00 ; G11B5/012

Abstract:
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.
Information query
IPC分类: