Integrated circuit optical head transfer device, the optical head transfer device, the focusing lens driving device, integrated circuits and of the focusing lens driving device

摘要

When transporting the radial direction of the optical disc optical head, when transferring the first, if an abnormality is detected by the abnormality detection circuit that was transferred at a speed profile having a large acceleration, detecting an abnormality of the focus control system, the acceleration by transferring again at a rate profile of small, it is possible to prevent the movable portion of the lens actuator collides with the fixed portion during the transfer in the radial direction of the optical disk and optical head, from the optical disk and the increase of the start-up time of the apparatus optical head moving device for preventing the reduction of the data reading speed, the integrated circuit of the optical head moving device, a focusing lens driving device, and an integrated circuit of the focusing lens driving device.