Disc speed control device

Details Disc speed control device Disc speed control device

2005-10-04

2005-10-04

Davis, David (Department: 2652)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

C369S047390, C369S047550

Reexamination Certificate

active

06952386

ABSTRACT:
A disc speed control device for use in a disc player and/or recorder having a pick-up for reading/recording data. The device comprises an inner loop which regulates a determined disc rotation speed value received at its input and an outer loop which delivers this speed value depending on a frequency at which data is read by the pick-up. The present invention is particularly useful in multistandard disc drives which need to adjust to different disc speed modes, for example, constant angular velocity, or constant linear velocity.

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patent: 0878795 (1998-11-01), None
patent: 10-106136 (1998-04-01), None
patent: 10106136 (1998-04-01), None

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