Dynamic information storage or retrieval – With particular cabinet structure – Slotted for edgewise insertion of storage disc
Patent
1983-05-20
1985-03-26
Stephan, Steven L.
Dynamic information storage or retrieval
With particular cabinet structure
Slotted for edgewise insertion of storage disc
369215, 369219, 369221, G11B 336, G11B 1704
Patent
active
045077711
ABSTRACT:
A motor drive apparatus for a disc player which includes a pickup, a pickup shift mechanism for shifting a position of the pickup and an automatic loading mechanism for loading a jacketed disc into the disc player. The motor drive apparatus comprises a motor for actuating the pickup shift mechanism and automatic loading mechanism, a servo controller for servo-controlling the rotation of the motor according to the position of the pickup so that a tracking servo control for the pickup is effected by the pickup shift mechanism, a position sensor for sensing the position of a jacket of the jacketed disc, an actuation controller for controlling the rotation of the motor according to the position of the jacket so that automatic loading of the jacketed disc is performed, and a mode instructor for selectively connecting one of the servo controller and actuation controller to the motor. Only the tracking servo control is effected when the mode instructor connects the servo controller to the motor, and only the automatic loading of the jacketed disc is effected when the mode instructor connects the actuation controller to the motor.
REFERENCES:
patent: 3827697 (1974-08-01), Miyoshi
patent: 4083565 (1978-04-01), Iyeta
patent: 4426695 (1984-01-01), Moriki et al.
Stephan Steven L.
Tokyo Shibaura Denki Kabushiki Kaisha
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