Technique for generating sector pulses by comparing production c

Details Technique for generating sector pulses by comparing production c Technique for generating sector pulses by comparing production c

1997-02-21

1999-07-20

Psitos, A.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

360 7708, 395555, G11B 509

Patent

active

059263334

ABSTRACT:
A technique for generating sector pulses in a hard disk drive using hardware involves: receiving read reference clocks produced during a read operation of the hard disk drive and producing a byte clock in sync with every byte; outputting the byte clock as an effective production clock in a time interval in which no servo gate signal indicative of a servo zone on a magnetic disk or the hard disk drive is produced, counting the production clocks, and comparing the counted value obtained during the production clock counting step with a previously stored value indicative of a sector length and generating a sector pulse when the counted value is equal to the previously stored value.

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