Horizontal state correction circuit of a disk transferring devic

Details Horizontal state correction circuit of a disk transferring devic Horizontal state correction circuit of a disk transferring devic

1995-05-11

1997-12-30

Sircus, Brian

Electricity: motive power systems

Positional servo systems

Plural servomotors

318648, 369 38, G11B 548

Patent

active

057034532

ABSTRACT:
The present invention provides a circuit for correcting a horizontal state of a disk transferring device including chucks for clamping a selected disk from a cartridge, a chuck transferring body for transferring the chucks right or left, a lower frame combined with the chucks and the chuck transferring body to move them left or right, and first and second frames formed integrally with the chucks, the chuck transferring body and lower frame and fixedly connected to belts to move the chucks, chucks transferring body and lower frame up and down by the belts. The circuit comprises a detecting circuit determining a right height and a left height of the disk transferring device to detect an error in a horizontal state; a comparator for comparing an amount of error in the left and right horizontal state detected by the detecting circuit; a controlling circuit determining a rotation direction of correction motors according to the error in the horizontal state detected by the detecting circuit; and a correcting circuit for driving the correction motors as much as the amount of error compared by the comparator to correct the horizontal state of the disk transferring device.

REFERENCES:
patent: 4827463 (1989-05-01), Motoyoshi et al.
patent: 4968924 (1990-11-01), Mori et al.
patent: 5126648 (1992-06-01), Jacobs
patent: 5164928 (1992-11-01), Oliver et al.
patent: 5303034 (1994-04-01), Carmichael et al.
patent: 5392266 (1995-02-01), Kobayashi et al.
patent: 5427489 (1995-06-01), Chalmers et al.
patent: 5428587 (1995-06-01), Wanger et al.

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