US 11,862,197 B2
Magnetic disk device
Daisuke Sudo, Kawasaki Kanagawa (JP)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (JP); and Toshiba Electronic Devices & Storage Corporation, Tokyo (JP)
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP); and TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, Tokyo (JP)
Filed on Aug. 10, 2022, as Appl. No. 17/885,220.
Claims priority of application No. 2022-012108 (JP), filed on Jan. 28, 2022.
Prior Publication US 2023/0245683 A1, Aug. 3, 2023
Int. Cl. G11B 21/10 (2006.01)
CPC G11B 21/106 (2013.01) 11 Claims
OG exemplary drawing
 
1. A magnetic disk device which includes two or more independently drivable actuator blocks and performs seek control with a low jerk in which a jerk that is a derivative of acceleration is limited, wherein
in a state where a first actuator block is not accessing a data sector of a disk, a second actuator block that is not the first actuator block accesses the data sector of the disk by seek control with a high Jerk.