07460323 is referenced by 4 patents and cites 8 patents.

A method for automatically characterizing non-linearities of a perpendicular read-back signal of a recording system is disclosed. The method includes using dibit extraction to obtain a read-back signal having a main pulse and a plurality of echoes where the read-back signal exhibits a baseline shift. An area under the first echo is integrated to obtain a first area where the integrating subtracts any baseline shift area within the first echo and where the first echo is associated with a first non-linearity. The method integrates an area of the read-back signal under the main pulse to obtain a second area where the integrating subtracts any baseline shift area within the main pulse. A first parameter is computed that characterizes the first non-linearity based on the first area and the second area. The method may be applied to characterize several non-linearities.

Title
Methods and systems for automatically characterizing non-linearities of a read-back signal of a recording system
Application Number
11/495007
Publication Number
7460323 (B2)
Application Date
July 27, 2006
Publication Date
December 2, 2008
Inventor
Yuan Xing Lee
San Jose
CA, US
Assignee
Hitachi Global Storage Technologies Netherlands
NL
IPC
G11B 5/09
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