Recording circuit employing AC biasing system

Details Recording circuit employing AC biasing system Recording circuit employing AC biasing system

1979-12-04

1982-06-01

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

360 68, G11B 547, G11B 502

Patent

active

043331149

ABSTRACT:
A magnetic recording head, a resistor, a capacitor and another resistor are connected in series to form a bridge circuit arranged to satisfy the condition Ra.multidot.Rb=L/C, wherein Ra and Rb represent the resistance values of the resistors, respectively, L represents the inductance value of the magnetic recording head, and C represents the capacitance value of the capacitor. A recording signal is applied across a first pair of opposite junctions of the bridge circuit, and an AC biasing signal to be used in recording the recording signal is applied across a second pair of opposite junctions of this bridge circuit.

REFERENCES:
patent: 3324250 (1967-06-01), Skov
patent: 3480739 (1969-11-01), Kinkel
patent: 3806828 (1974-04-01), Johnson

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