公开(公告)号：SG109018A1

公开(公告)日：2005-02-28

申请号：SG200404686

申请日：2004-07-29

Applicant: IBM

Inventor： NHAN XUAN BUI ,  JAMES HOWARD EATON ,  JUNICHI FUKUDA ,  GLEN ALAN JAQUETTE ,  EIJI OGURA ,  MARK ALLAN TAYLOR ,  KAZUHIRO TSURUTA

IPC: G11B5/008 ,  G11B5/584 ,  G11B5/78

Abstract: In a tape having separate servo bands of patterns positioned laterally across the tape, the patterns of a separate servo band have at least one differentiating characteristic with respect to patterns of another of the separate servo bands. The differentiating characteristic allows identification of the separate servo bands. For example, the patterns of a separate servo band have differing azimuthal orientations of detectable transitions with respect to another servo band, such as being laterally inverted. In another, variations in the width of gaps of patterns are made with respect to another servo band. In another, variations are made in the number of the detectable transitions of patterns with respect to the patterns of another servo band.