Magnetic recording and reproducing system with recording...

Details Magnetic recording and reproducing system with recording... Magnetic recording and reproducing system with recording...

2008-07-22

2008-07-22

Feild, Joseph (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S048000, C360S135000

Reexamination Certificate

active

11333505

ABSTRACT:
The invention is directed to a magnetic recording/reproducing system wherein each burst pattern in discrete media is configured in a substantially trapezoidal shape (truncated quadrangular pyramid shape, and which satisfies given relations between W1, W2, Tp and Wr. W1is the upper side of the trapezoidal shape in the track width direction, which corresponds to the surface of said convex-form magnetic recoding layer, W2is the lower side of the trapezoidal shape in the track width direction, which corresponds to the bottom surface of said convex-form magnetic layer, Tp is the data track pitch at the data information recording portion, and Wr is the read width of the magnetic head, so that loads on burst pattern shape in medium fabrication processes can be far more reduced and far more precise position error signals can be obtained.

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U.S. Appl. No. 11/333,505, filed Jan. 18, 2006, Tagami et al.

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