Tilt servo device in optical disc player

Details Tilt servo device in optical disc player Tilt servo device in optical disc player

G - Physics

11

B

352/32.2

G11B 7/095 (2006.01) G11B 7/085 (2006.01)

Patent

CA 1322598

ABSTRACT OF THE DISCLOSURE Optical disk player with tilt servo including means wherein the transfer frequency characteristic of a feedback circuit for controlling a tilt adjust mechanism is changed to a wide bandwidth transfer characteristic while in a search operation mode, and is changed to a narrow bandwidth transfer characteristic while in a play operation mode. Accordingly, the transfer frequency characteristic of the feedback circuit in the tilt servo system is changed according to the operation mode of the disk player, so that a suitable loop characteristic is selected for the tilt servo system.

601156

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