Passive payload for a cartridge handling system

Details Passive payload for a cartridge handling system Passive payload for a cartridge handling system

1989-03-20

1991-10-15

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

Digital or numerical systems

369 36, G05B 1126, G11B 1722

Patent

active

050577581

ABSTRACT:
Disclosed is an optical disk handling system, called an autochanger, having two control systems to provide the six motions necessary to move optical disk cartridges from storage holding cells to an optical drive. The system uses shaft encoders on two motors of the two control systems, and current or voltage feedback from the motors for all positioning, and for detecting the location of the mechanisms during, and at the end of, moves. The shaft encoders are used to position a mechanism close to the eventual move location, then motor current or voltage feedback is used to determine the opposition to the movement of the mechanism, which tells the control system whether the mechanism has reached its destination.

REFERENCES:
patent: 4234833 (1980-11-01), Barrett
patent: 4563625 (1986-01-01), Kornbrekke et al.
patent: 4625291 (1986-11-01), Hormann
patent: 4879615 (1989-11-01), Teranishi et al.
patent: 4899331 (1990-02-01), Masaki et al.

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