US 7,499,235 B2
Auto-servo tape system and associated recording head
George A. Saliba, Northborough, Mass. (US)
Assigned to Quantum Corporation, San Jose, Calif. (US)
Filed on Mar. 18, 2005, as Appl. No. 11/84,412.
Prior Publication US 2006/0209450 A1, Sep. 21, 2006
Int. Cl. G11B 21/02 (2006.01); G11B 5/09 (2006.01); G11B 5/584 (2006.01)
U.S. Cl. 360—75  [360/48; 360/77.12] 36 Claims
OG exemplary drawing
 
1. A head positioning servo method for non-azimuthal recording, wherein a head assembly includes a first head having first and second write elements and a read element, the method comprising:
the first write element writing a first data track; and
the second write element writing a first reference track, wherein the first reference track partially overwrites the first data track to form a first servo edge for laterally servoing the head assembly, wherein data track width is based upon the lateral gap between the read element and the second write element plus a portion of the lateral width of the read element overlapping the first reference track when the head is properly positioned with respect to a next data track.