Phase adjusting device, magnetic storage medium, and storage...

Details Phase adjusting device, magnetic storage medium, and storage... Phase adjusting device, magnetic storage medium, and storage...

2011-04-05

2011-04-05

Negrón, Daniell L (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

C360S048000

Reexamination Certificate

active

07920349

ABSTRACT:
A magnetic storage medium such as a BPM includes a plurality of magnetic dots for writing and reproducing data disposed in a magnetically separated manner so as to be spaced a predetermined distance in a down-track direction and a plurality of tracks concentrically disposed so that the magnetic dots are disposed in a magnetically separated manner. In the BPM, a phase-adjusting track is disposed in an arbitrary track among the tracks. On the phase-adjusting track, phase detection dots disposed in a down-track direction to allow writing and reproduction of phase detection data and blank bits providing a predetermined phase difference in a down-track direction to next successive phase-detecting dots are alternately disposed in a successive manner.

REFERENCES:
patent: 6738207 (2004-05-01), Belser et al.
patent: 7675703 (2010-03-01), Albrecht et al.
patent: 2010/0118426 (2010-05-01), Vikramaditya et al.
patent: A 8-36839 (1996-02-01), None

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