Title:
METHOD OF DRIVING HEAD, HEAD DRIVING DEVICE AND DISC DRIVING APPARATUS USING THE SAME METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO2000079534
Kind Code:
A3
Abstract:
A method for driving a head includes the steps of: determining a head-present-position by a head-position-data supplied from a head-position-detector; calculating in advance a target-sector accessible-time by the head for a first time based on a data of a head-present-position, a location data of a target sector at a destination and a driving capability of a head assembly; and controlling a head-assembly-driver by determining a moving speed and an acceleration/deceleration pattern of the head for completing a seek to a track including the target sector within the accessible-time. The method is useful for controlling the head of a disc driving apparatus, especially a magnetic head of a magnetic disc driving apparatus, and the method reduces power consumption at a seek-operation without extending an access time.
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Inventors:
OKADA SHUHEI (JP)
Application Number:
PCT/JP2000/004042
Publication Date:
July 05, 2001
Filing Date:
June 21, 2000
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
OKADA SHUHEI (JP)
OKADA SHUHEI (JP)
International Classes:
G05D3/12; G11B5/55; G11B19/06; G11B21/08; G11B7/085; (IPC1-7): G11B21/08; G11B5/55; G11B7/085; G11B19/06
Foreign References:
| EP0441407A1 | 1991-08-14 | |||
| EP0800128A2 | 1997-10-08 | |||
| EP0293809A2 | 1988-12-07 |
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