Patent ID: 6282048
Filing Date: 2001-08-28
Classification: G11B

Abstract:
A tracking control apparatus for an image recorder/reproducer which converts an applied tracking error into a degree of capstan speed control, said tracking error being reflected in generating a driving signal of a capstan motor, said tracking control apparatus comprising:a tracking controller which outputs a variable capstan speed instruction, said instruction varying in accordance with a degree of tracking control calculated by performing a gain control on said tracking error; anda capstan speed controller which receives said capstan speed instruction from said tracking controller and performs a gain control on a speed error used in controlling said capstan motor and compares an actual capstan speed with said capstan speed instruction, and outputs said degree of capstan speed control;wherein said tracking controller comprises:a capstan phase controller which performs a gain control operation on said tracking error and outputs said degree of tracking control; anda capstan speed instruction generator which outputs said variable capstan speed instruction corresponding to said degree of tracking control;wherein said capstan speed instruction generator is a voltage controlled oscillator which outputs a variable frequency signal that corresponds to said degree of tracking control.