Method and apparatus to compensate for servo wedge rotational offset after a head switch
摘要
A disk drive controller having a microprocessor and a sampled signal head positioning system measures and stores the relative rotational offsets between heads arranged in a stacked relationship and respective servo wedges on different disk surfaces. The offsets are stored in a table and subsequently applied to a servo wedge detection circuit to ensure that a next sequential wedge is detected after a head switch.
申请公布号
US6067206(A)
申请公布日期
2000.05.23
申请号
US19970972655
申请日期
1997.11.18
申请人
WESTERN DIGITAL CORPORATION
发明人
HULL, RICHARD W.;JOAN, DAVID B.;PATTON, III, CHARLES R.;RAKSHANI, VAFA JAMES;SIMMONS, CHARLES W.