Synchronous writing with timing error detection in bit...

Details Synchronous writing with timing error detection in bit... Synchronous writing with timing error detection in bit...

2008-10-30

2011-10-18

Negron, Daniell L (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

C360S031000, C360S075000

Reexamination Certificate

active

08040628

ABSTRACT:
A hard disk drive that includes a head that is coupled to a disk. The disk drive further includes a comparator circuit that is coupled to the head. The comparator circuit receives a synchronization signal and a write clock. The comparator generates a write error signal if a comparison of the synchronization and write clock signals exceeds a threshold. The write error signal can inhibit a write operation or cause a rewrite of data.

REFERENCES:
patent: 6803828 (2004-10-01), Tan et al.
patent: 6839195 (2005-01-01), Chainer et al.
patent: 7675703 (2010-03-01), Albrecht et al.
patent: 7808737 (2010-10-01), Tsukada et al.
patent: 7817365 (2010-10-01), Fisher
patent: 2009/0091854 (2009-04-01), Tang
patent: 2010/0020429 (2010-01-01), Sridhara et al.

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