Data recording medium, method for generating a reference clock signal, and data storage device

摘要

Various embodiments provide a recording medium. The recording medium may include: a dedicated servo layer for providing servo information, wherein the dedicated servo layer comprises a plurality of tracks, wherein a first track comprises a first servo signal of a first frequency, wherein a second track comprises a second servo signal of a second frequency, and wherein the first servo signal and the second servo signal comprise a common single tone signal.

主权项

1. A recording medium comprising:
a data recording layer configured to store data written, by a read/write head, to the data recording layer; and a servo layer that (i) is physically separate from the data recording layer, and (ii) is arranged beneath the data recording layer, wherein the servo layer includes
a first servo track configured to store (i) first position data in accordance with a first frequency, and (ii) in addition to the first position data, a clock signal in accordance with the first frequency anda second servo track configured to store (i) second position data in accordance with a second frequency, and (ii) in addition to the second position data, the clock signal in accordance with the second frequency, wherein the second frequency is different than the first frequency, and wherein the second position data is different than the first position data, wherein a position of the read/write head over the data recording layer is determinable based on one or more of (i) the first position data stored on the first servo track in accordance with the first frequency and (ii) the second position data stored on the second servo track in accordance with the second frequency, and wherein a reference clock signal based on which the read/write head reads or writes data on the data recording layer is based on both (i) the clock signal stored on the first servo track at the first frequency, and (ii) the clock signal stored on the second servo track at the second frequency.