Patent ID: 7035039
Filing Date: 2006-04-25
Classification: G11B

Abstract:
1. A magnetic head positioning control device for positioning a magnetic head on a predetermined track of a magnetic disk according to a servo information read out from said track, comprising: a head cartridge held on a support arm for supporting said magnetic head through a suspension spring; a head carriage mounting said head cartridge thereon via said support arm; a forward/backward actuator for moving one of said head cartridge and a head assembly having said suspension spring, said forward/backward actuator provided between said suspension spring and said support arm; and a control circuit for controlling said forward/backward actuator such that said magnetic head is kept in a predetermined position on said track of said magnetic disk by driving said forward/backward actuator according to an amount of positional deviation of said magnetic head on said track obtained correspondingly to the servo information read out by said magnetic head.