Method for reducing variation range of skew angle of magnetic writing pole and magnetic writing pole using the method

Patent metadata

Field	Value
Publication number	US-8937779-B2
Application number	US-201414449116-A
Country	US
Kind code	B2
Filing date	Jul 31, 2014
Priority date	Feb 4, 2013
Publication date	Jan 20, 2015
Grant date	Jan 20, 2015

Abstract

A method for reducing skew angle variation range in a shingled magnetic recording system, the method including the following steps: 1) determining whether a starting magnetic track is in an inner recording zone; if yes, proceeding to step 2), otherwise proceeding to step 4); 2) using an inner writing corner to start shingled magnetic recording at a starting track; 3) using a shingled magnetic method to write rest magnetic tracks sequentially by the inner writing corner, keeping a writing pole moving in a direction from an inner recording zone to an outer recording zone; 4) determining whether the starting magnetic track is in the outer recording zone; 5) using an outer writing corner to start shingled magnetic recording at the starting track; and 6) using the shingled magnetic method to write the rest magnetic tracks sequentially by the outer writing corner.

First claim

The invention claimed is:

1. A magnetic writing pole for reducing a skew angle variation range in a shingled magnetic recording system, the magnetic writing pole comprising:
an inner writing corner; and
an outer writing corner,

wherein:
an angle α 1 of the inner writing corner is of the value between 50° and 120°; and
an angle α 2 of the outer writing corner is of the value between 50° and 120°.

2. The magnetic writing pole of claim 1 , wher…

Assignees

• Univ Huazhong Science Tech

Inventors

• Xu Shu
• Liu Bo
• Chen Jincai

Classifications

• G11B5/52

  Physics · mapped topic

• G11B5/3116 Primary

  Physics · mapped topic

• G11B20/1217

  Physics · mapped topic

• G11B5/012

  Physics · mapped topic