Apparatus and method for writing data to an information...

Details Apparatus and method for writing data to an information... Apparatus and method for writing data to an information...

2005-12-27

2005-12-27

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Signal switching

C360S048000, C360S078080, C711S004000, C711S112000

Reexamination Certificate

active

06980386

ABSTRACT:
A disc drive has transducers supported by an actuator to fly proximate data tracks on surfaces of rotating information storage discs. Each of the discs is partitioned into concentric regions. A control system arranges the deposition of data in write operations to the tracks on the disc surfaces, as data is written to the discs, such that the data is sequentially organized both on the tracks and within each of the regions. The control system writes data from a track adjacent a first region boundary in a first direction to a second region boundary until all tracks in a region are full. The control system executes a head switch between adjacent surfaces of the discs. The write sequence is repeated in each adjacent region until all regions are full. The resulting trapezoidal serpentine pattern of actuator movement and head switches is repeated until all of the write operations are complete.

REFERENCES:
patent: 5872673 (1999-02-01), Purkett
patent: 6014837 (2000-01-01), Morgan
patent: 6105104 (2000-08-01), Edward
patent: 6118609 (2000-09-01), Gong
patent: 6388413 (2002-05-01), Ng
patent: 6693766 (2004-02-01), Wilkes et al.
patent: 2001/0033450 (2001-10-01), Bryant

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