Data read/write method for the laser head of the lower inertial compact disk driving device

摘要

A data read/write method for the laser head of the lower inertial compact disk driving device, which includes a rotary needle, an compact composition, and a tracking device, wherein the compact composition, constructed on the rotary needle, transmits the laser beam towards and backwards between the disk and the laser head by the revolution of the rotary needle as well as the back and forth straight movements of the tracking device. The compact composition is composed of a movable reflector and a fixed reflector to form a read/write compact path. The laser beam is firstly reflected to the horizontal beam via the fixed reflector, then reflected to the perpendicular beam via the movable reflector to one track on the disk; and the beam, reflected back along the original path from the reflection layer of the compact disk, is received by the laser head. Thus, by switching the reading and writing position of the rotary needle and the tracking device, a data read/write method for the compact disk driving device with a stationary disk and laser head is accomplished.