Tape speed control apparatus using rotation speed ratio of first

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record

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2423344, G11B 1554

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active

056046529

ABSTRACT:
A tape speed command signal is differentiated, and in a multiplier, the torque necessary for acceleration or deceleration of a take-up reel motor is calculated in accordance with the moment of inertia of a take-up reel and a winding radius of the tape on the take-up reel. The calculated result is added to a torque command produced by a feedback control system.

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Microelectronic Circuits, p. 8, Sedia and Smith, .COPYRGT. 1987, CBS College Publishing.

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