Method for compensating timing to start data recording and...

Details Method for compensating timing to start data recording and... Method for compensating timing to start data recording and...

2006-09-12

2006-09-12

Wellington, Andrea (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

C360S062000

Reexamination Certificate

active

07106534

ABSTRACT:
Head-to-head variations in the head gap distance between write and read heads is compensated by measuring the head gap distance in each head by writing and reading a predetermined unique pattern, and compensating the timing to start the data writing by changing it in a head-to-head manner based on a time gap that corresponds to the measured head gap distance in each head. This allows data to be written at a desired physical position regardless of the variation of the head gap distance, thereby allowing formatting efficiency to be improved.

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patent: 6724553 (2004-04-01), Yun et al.
patent: 6751037 (2004-06-01), Haines et al.
patent: 6781786 (2004-08-01), Ishii
patent: 06-176486 (1994-06-01), None
patent: 09-115124 (1997-05-01), None

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