Invention Grant
US08149652B2 Compensating the effects of static head-media spacing variations and nonlinear transition shift in heat assisted magnetic recording
有权
补偿热辅助磁记录中静态磁头 - 介质间距变化和非线性过渡位移的影响
- Patent Title: Compensating the effects of static head-media spacing variations and nonlinear transition shift in heat assisted magnetic recording
- Patent Title (中): 补偿热辅助磁记录中静态磁头 - 介质间距变化和非线性过渡位移的影响
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Application No.: US12400865Application Date: 2009-03-10
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Publication No.: US08149652B2Publication Date: 2012-04-03
- Inventor: Mehmet Fatih Erden , Priyadarshee Deeptarag Mathur , William Albert Challener , Edward Charles Gage , Wei Peng , Terry Wayne McDaniel , Tim Rausch
- Applicant: Mehmet Fatih Erden , Priyadarshee Deeptarag Mathur , William Albert Challener , Edward Charles Gage , Wei Peng , Terry Wayne McDaniel , Tim Rausch
- Applicant Address: US CA Scotts Valley
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Scotts Valley
- Agency: Pietragallo Gordon Alfano Bosick & Raspanti, LLP
- Agent Robert P. Lenart, Esq.
- Main IPC: G11B11/00
- IPC: G11B11/00 ; G11B5/02
Abstract:
An apparatus comprises a storage medium, a recording head, a source of electromagnetic radiation, and a control circuit for modulating the source of electromagnetic radiation in response to a static deviation of a spacing between the recording head and the storage medium. A method of compensating a static deviation of a spacing between a recording head and a storage medium performed by the apparatus, and a method of precompensating for nonlinear transition shifts in a heat assisted magnetic recording system, are also provided.
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