Patent ID: 6304405
Filing Date: 2001-10-16
Classification: G11B

Abstract:
A method of controlling read and/or write operations of a disk drive device during start-up, said method comprising the steps of:(a) increasing a rotational speed of a data recording disk after power-on of said disk drive device;(b) detecting that said rotational speed of said data recording disk is rotating at a first rotational speed;(c) while rotating said data recording disk at said first rotational speed, reading a control program recorded on said data recording disk, storing said control program in a memory device, and sending a ready signal to a host processor;(d) while rotating said data recording disk at said first rotational speed, receiving a read command from said host processor to perform a read operation for reading data from said data recording disk;(e) increasing said rotational speed of said data recording disk to a second rotational speed, wherein said second rotational speed is faster than said first rotational speed; and(f) while rotating said data recording disk at said second rotational speed, performing a read operation and/or write operation.