CONTROLLER OF OPTICAL PICKUP, ITS PROGRAM, RECORDING MEDIUM, OPTICAL DISK DEVICE, AND CONTROL METHOD OF OPTICAL PICKUP

摘要

PROBLEM TO BE SOLVED: To shorten the time required before starting a focus jump in the process of an inter-layer jump. SOLUTION: In a DSP 16 for a servo, a servo controller 40 for controlling the operation of a circuit 42 for various kinds of compensations of a focus servo in accordance with the value of aberration error signals is provided. COPYRIGHT: (C)2007,JPO&INPIT