Invention Grant
- Patent Title: Implementing magnetic defect classification using phase modulation
- Patent Title (中): 使用相位调制实现磁缺陷分类
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Application No.: US13277047Application Date: 2011-10-19
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Publication No.: US08654464B2Publication Date: 2014-02-18
- Inventor: Richard Leo Galbraith , Weldon Mark Hanson , Martin Aureliano Hassner , Travis Roger Oenning , Satoshi Yamamoto
- Applicant: Richard Leo Galbraith , Weldon Mark Hanson , Martin Aureliano Hassner , Travis Roger Oenning , Satoshi Yamamoto
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agent Joan Pennington
- Main IPC: G11B5/02
- IPC: G11B5/02
Abstract:
A method, apparatus, and system are provided for implementing magnetic defect classification using phase modulation for hard disk drives. A magnetic media readback signal of a hard disk drive is processed to identify predefined phase modulation (PM) characteristics to implement magnetic defect classification of magnetic media bump and pit defects.
Public/Granted literature
- US20130100550A1 IMPLEMENTING MAGNETIC DEFECT CLASSIFICATION USING PHASE MODULATION Public/Granted day:2013-04-25
Information query
IPC分类:
