Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2004-08-03
2008-07-29
Castro, Angel A (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
C324S212000
Reexamination Certificate
active
07405907
ABSTRACT:
A read head for reading magnetically stored data in adjacent tracks of a medium has at least two elongate bodies, each having at least one magnetoresistive part. The magnetoresistive parts have sensor portions defined along a length of the elongate bodies, by electrical connections to the magnetoresistive parts. A shield is provided at least on opposite transfer sides of the elongate bodies. The read head is used for calculating a position error signal by calculating a correlation between signals received from the respective sensor portions when the head is positioned over adjacent tracks on the medium, with one of the sensors positioned near a boundary between the tracks. The position error is calculated by determining the correlation between signals from the respective sensor portions.
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Castro Angel A
O-Mass AS
Schiff & Hardin LLP
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