Compound phase encoding for printed servo patterns

Details Compound phase encoding for printed servo patterns Compound phase encoding for printed servo patterns

2007-01-23

2007-01-23

Tzeng, Fred F. (Department: 2627)

Dynamic magnetic information storage or retrieval

General recording or reproducing

C360S053000

Reexamination Certificate

active

10519440

ABSTRACT:
A type of servo pattern suitable for tracking systems in magnetic recording devices such as floppy disks or linear tape or hard disks or in other machines. The pattern comprises several phase-encoded elements that provide an absolute transverse position coordinate from local data. Computations can be made with channel chips commonly used in magnetic recording disk drives.

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