Linear velocity control means

Details Linear velocity control means Linear velocity control means

1982-03-31

1984-05-22

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Mechanism condition or storage medium responsive control

369243, 369267, G11B 1924

Patent

active

044505523

ABSTRACT:
A velocity control system for a rotating disc having a spiralling track thereon and comprising an arm rotatable about a fixed axis, a stylus attached to such arm and positioned to follow the spiralling track, and logic responsive to the position of the arm to produce a control signal indicative of the position of the arm. Also provided is a prime mover responsive to the control signal to rotate the disc at an angular velocity to produce a velocity at the point of contact between the stylus and the disc which is a predetermined function of the position of the stylus.

REFERENCES:
patent: 2328515 (1943-08-01), Van Overeem
patent: 2505630 (1950-04-01), Weathers
patent: 3646259 (1972-02-01), Schuller
patent: 4079942 (1978-03-01), Kunen

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