Optical disk driving unit, pickup controller, and laser driver provided in a pickup

摘要

An optical disk driving unit includes a pickup configured to supply a drive current to a laser unit, and to irradiate a laser beam to an optical disk. A plurality of signal lines are configured to transmit control information of the drive current to the pickup. A pickup controller is configured to control operation of the pickup by transferring control data to the pickup via the signal lines when the drive current is a constant value.