Pickup-drive stabilizing apparatus for an optical disc player

Details Pickup-drive stabilizing apparatus for an optical disc player Pickup-drive stabilizing apparatus for an optical disc player

1991-11-22

1993-06-01

Sniezer, Andrew L.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4425, 369 32, G11B 700

Patent

active

052166511

ABSTRACT:
A pickup driving apparatus, and particularly, a pickup-drive stabilizing apparatus for an optical disc player includes: a detector for detecting an inertia of a pickup relative to a movement speed of the pickup, when an instruction occurs to stop driving a sled motor that transversely shifts the pickup at a high speed for high-speed access; and a comparator that determines whether an inertia speed of the pickup has decelerated to within a range stable for tracking control by comparing the output signal of the detector with a preset reference signal and generates an output signal for starting the tracking control. Therefore, the pickup-drive stabilizing apparatus can stabilize the pickup of the optical disc player after performing high-speed information access on an optical disc.

REFERENCES:
patent: 5020044 (1991-05-01), Shimonou
patent: 5050146 (1991-09-01), Richgels
patent: 5095474 (1992-03-01), Ito et al.
patent: 5117410 (1992-05-01), Akiyama

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