Multiple servo sensors are laterally displaced over a distance less than
the transverse width of timing based servo track laterally extending
transitions. The servo sensors are configured to sense the transitions,
and servo detection logic detects the relative timings of the laterally
extending transitions sensed by the laterally displaced servo sensors as
the magnetic tape is moved in the longitudinal direction. Logic is
configured to determine from the relative timings of the sensed
transitions for at least one known set of laterally extending transitions
having differing slants, the lateral position of a servo sensor by
employing the relative timing detected from one servo sensor and the
relative timing detected from another servo sensor, or determine the
longitudinal velocity of the magnetic tape by determining the difference
between the relative timing detected from one servo sensor and the
relative timing detected from another servo sensor.