Disk drive employing a modified rotational position...

Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition

Reexamination Certificate

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Details

C711S100000, C711S154000, C360S099080

Reexamination Certificate

active

06968422

ABSTRACT:
A disk drive is disclosed which executes a rotational position optimization (RPO) algorithm to select a next command to execute from a command queue relative to an estimated access time. If an external vibration is detected, the RPO algorithm increases at least one of an estimated seek latency, an estimated settle latency, and an estimated rotational latency for each command in the command queue.

REFERENCES:
patent: 5268804 (1993-12-01), Wallis
patent: 5570332 (1996-10-01), Heath et al.
patent: 5991825 (1999-11-01), Ng
patent: 6418510 (2002-07-01), Lamberts
patent: 6711628 (2004-03-01), Thelin
patent: 6721906 (2004-04-01), Hirashita et al.
patent: 6842801 (2005-01-01), Yamada
patent: 6845405 (2005-01-01), Thelin
patent: 2002/0059476 (2002-05-01), Yamada

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