| US 7,457,066 B2 | ||
| Method and apparatus for phase-shift null-burst-pattern | ||
| Richard M. Ehrlich, Saratoga, Calif. (US); and Anton Gerasimov, Santa Clara, Calif. (US) | ||
| Assigned to Kabushiki Kiasha Toshiba, Tokyo (Japan) | ||
| Filed on May 31, 2006, as Appl. No. 11/421,430. | ||
| Prior Publication US 2007/0279786 A1, Dec. 06, 2007 | ||
| Int. Cl. G11B 5/09 (2006.01); G11B 20/14 (2006.01) | ||
| U.S. Cl. 360—48 [360/40] | 8 Claims |
| 1. A media comprising:
a plurality of tracks;
a preamble portion including a set of signals;
a first servo burst having a first plurality of signals written substantially in phase with the preamble portion; and
a second servo burst written out of phase with the preamble portion and the first servo burst, wherein an amount of phase
shift between the second servo burst and the preamble portion is selected to compensate for a shape of signals associated
with the second servo burst as written to the media.
|