Invention Grant
- Patent Title: Writer and reader arrangements for shingled writing
- Patent Title (中): 作家和读者安排书写的书写
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Application No.: US12589829Application Date: 2009-10-29
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Publication No.: US08134802B2Publication Date: 2012-03-13
- Inventor: Zhigang Bai , Yan Wu , Kenichi Takano
- Applicant: Zhigang Bai , Yan Wu , Kenichi Takano
- Applicant Address: US CA Milpitas
- Assignee: Headway Technologies, Inc.
- Current Assignee: Headway Technologies, Inc.
- Current Assignee Address: US CA Milpitas
- Agency: Saile Ackerman LLC
- Agent Stephen B. Ackerman
- Main IPC: G11B5/127
- IPC: G11B5/127

Abstract:
A sloped reader is disclosed that reduces skew between reader and written transitions in shingled writing. The reader is formed between surfaces of S1 and S2 shields that are aligned parallel to the sloped reader. A PMR writer is described that straightens transition curvature and reduces signal-to-noise ratio in shingled writing. In one embodiment, a symmetrical writer with a bowed trailing edge where two corners have a greater pole height than a center portion may be used for either right corner or left corner shingled writing. In a second embodiment, an asymmetrical writer is formed with a straight and sloped trailing edge such that the write corner has a greater pole height than the opposite corner on the trailing edge. The bowed angle in the symmetrical writer and slope angle in the asymmetrical writer is between 5 and 45 degrees and preferably between 10 and 30 degrees.
Public/Granted literature
- US20110102942A1 Writer and reader arrangements for shingled writing Public/Granted day:2011-05-05
Information query
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