US 11,776,569 B1
Tape recording system and method for reading media having write-append head-positioning based on change in tape lateral dimension
Robert G. Biskeborn, Hollister, CA (US); and Trevor W. Olson, San Jose, CA (US)
Assigned to Western Digital Technologies, Inc., San Jose, CA (US)
Filed by Western Digital Technologies, Inc., San Jose, CA (US)
Filed on Apr. 26, 2022, as Appl. No. 17/729,843.
Int. Cl. G11B 5/733 (2006.01); G11B 5/735 (2006.01); G11B 5/55 (2006.01); G11B 5/596 (2006.01)
CPC G11B 5/553 (2013.01) [G11B 5/5508 (2013.01); G11B 5/59688 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A tape drive, comprising:
a tape head comprising one or more modules, each module comprising a plurality of read elements and a plurality of servo readers, wherein the plurality of read elements are configured to read a plurality of data tracks of a formatted tape; and
a control circuitry configured to:
retrieve a priority servo reader designation for a bundle of data tracks of the plurality of data tracks, wherein the priority servo reader designation is one or more servo readers of the plurality of servo readers, and wherein the priority servo reader designation is stored in at least one of a cartridge memory, a superblock preamble, one or more regions of the formatted tape, or a data storage device;
use the designated priority servo reader to adjust a lateral position the tape head;
retrieve a target delta Y position (ΔYpos); and
adjust a tilt of the tape head based on the target ΔYpos.