Patent ID: 9443539
Filing Date: 2016-09-13
CPC Classification: G11B

Claim Text:
1. A magnetic tape medium and write head for writing at least one servo pattern on the magnetic tape medium comprising: a first coil configured to generate a first magnetic flux when applying an electric current to the first coil; a second coil configured to generate a second magnetic flux when applying an electric current to the second coil; a pole piece structure configured to guide the generated magnetic flux, comprising a first ring structure for guiding the first magnetic flux, a second ring structure for guiding the second magnetic flux, and a common section of the first and the second ring structure, which common section is arranged between the first coil and the second coil; and a section containing a gap in each of the first ring structure and the second ring structure, wherein the magnetic flux is oriented in opposite directions across the two gaps, and wherein the sections containing the gaps are oriented in a common plane; wherein the magnetic tape medium comprises: for at least one of the first and second bursts, different stripes within a same burst have opposite magnetic polarities with respect to one another.