Patent ID: 6381087
Filing Date: 2002-04-30
Classification: G06F,G11B,Y02D

Abstract:
An information storing device, comprising:a disk-shaped memory medium; a motor rotatably supporting the medium; a motor driving circuit to drive the motor; a read or write head; a head driving mechanism to drive the head; a head driving circuit coupled to the head driving mechanism; a CPU, coupled to both the head driving circuit and the motor driving circuit, including a head seek time selecting function to select one of a plurality of seek modes according to a command from a higher rank device, and the CPU also including a function by means of which a last seek mode among the plurality of seek modes is activated when said information storing device has input electric power which is switched off accompanied by the switching off of a power input of a device of higher rank that can access said information storing device, wherein: if a first seek mode is selected, then said head driving circuit gives a first drive current to said head driving mechanism, if a second seek mode is selected, then said head driving circuit gives a second drive current to said head driving mechanism, and a noise level of said information storing device when the first seek mode is selected, is greater than a noise level of said information storing device when the second seek mode is selected.