Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1998-03-30
2000-08-08
Loomis, Paul
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 60, 360 7807, G11B 555
Patent
active
061010650
ABSTRACT:
A method for reducing data access time in a disk drive. The disk drive includes an actuator and a servo controller. The servo controller commands the actuator to perform a seek from a current position to a target position using a profile of command effort to the actuator. The profile comprises an acceleration profile and a deceleration profile. In one aspect, the method includes defining a read profile for a seek used to position the actuator to execute a read command. A write profile is defined for a seek used to position the actuator to execute a write command, the write profile being different from the read profile for a respective seek distance. The read and write seeks are performed using the read profile and the write profile. The average time required for performing a seek command is reduced as a result of the difference between the read profiles and the write profiles.
REFERENCES:
patent: 4937689 (1990-06-01), Seaver et al.
patent: 5150266 (1992-09-01), Albert
patent: 5859742 (1999-01-01), Takaishi
patent: 6002544 (1999-12-01), Yatsu
Alfred Steven J.
Oettinger Eric Gregory
Habermehl James L
Loomis Paul
Shara Milad G.
Western Digital Corporation
LandOfFree
Disk drive with seek profile selection based on read/write opera does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Disk drive with seek profile selection based on read/write opera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk drive with seek profile selection based on read/write opera will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1156142