Disk drive apparatus and method for compensating for error...

Details Disk drive apparatus and method for compensating for error... Disk drive apparatus and method for compensating for error...

2005-09-20

2005-09-20

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

C360S078140, C360S077080, C360S049000, C360S048000, C360S098010, C360S078090, C369S043000, C369S044250, C369S044260, C369S044310, C369S044340

Reexamination Certificate

active

06947233

ABSTRACT:
In a first mode, an R/W channel starts to monitor read information to thereby detect a servo mark contained in servo information, each time a servo controller generates a servo gate pulse. Upon detecting the servo mark, the R/W channel detects, from the read information, position information contained in the servo information and following the servo mark, at a timing determined by the detection timing of the servo mark. When the first mode has been switched to a second mode, the R/W channel detects the servo mark and position information using the synchronous method.

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“Disk File With Arm Mounted Electronics”, Jan. 1980, IBM Technical Disclosure Bulletin, vol. No. 22, Issue No. 8B, pp. 3803-3806.

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