Carriage driving apparatus for a disk player

Details Carriage driving apparatus for a disk player Carriage driving apparatus for a disk player

1988-10-18

1989-12-26

McElheny, Jr., Donald

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

G11B 2102

Patent

active

048902772

ABSTRACT:
A carriage driving apparatus for a disk player in which the stability and responsiveness of the feedback loop are improved. The carriage driving apparatus includes a driving coil disposed in a magnetic path extending in the radial direction of a disk for driving a carriage carrying a pickup in the forward/backward direction of the magnetic path in response to a driving current, a velocity detecting coil disposed in the magnetic path for generating a velocity detection output in accordance with changes in flux, and velocity detection correcting device, including a leakage correction equalizer and arithmetic circuit, for correcting the detection output of the velocity detecting coil in accordance with the frequency and intensity of the driving current flowing in the driving coil.

REFERENCES:
patent: 4323997 (1982-04-01), Kuribayashi et al.
patent: 4559570 (1985-12-01), Schwartz

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