Patent ID: 9412403
Filing Date: 2016-08-09
CPC Classification: G11B

Claim Text:
1. A shingled magnetic recording disk comprising: a plurality of radially spaced shingled data tracks arranged into a plurality of annular bands separated by inter-band gaps, the data tracks including data sectors; a plurality of radially spaced servo tracks having a plurality of angularly spaced servo sectors extending across the servo tracks and data tracks, the servo sectors containing position error signal (PES) blocks; and a plurality of angularly adjacent first and second data position error signal (DPES) blocks within the data sectors and extending radially across the data tracks in a band, each DPES block having a radial width of at least two data tracks, the first and second DPES blocks alternating in the radial direction and the DPES blocks in one angular position being shifted radially from the DPES blocks in the angularly adjacent position by one data track.