Electronic switching circuit for use in magnetic head drives

Details Electronic switching circuit for use in magnetic head drives Electronic switching circuit for use in magnetic head drives

1982-04-02

1984-01-24

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Signal switching

360 63, 360 68, G11B 1512

Patent

active

044280084

ABSTRACT:
An electronic switching circuit coupled between a magnetic head driving circuit and transducing windings utilizing an electronic switch whose internal resistance changes substantially linearly in response to an increasing or decreasing control signal. Particularly useful in magnetic bias recording or erase circuits to eliminate erase of useful information and recording of disturbing noise spikes due to induced high frequency noise signal when the switch is activated.

REFERENCES:
patent: 4203139 (1980-05-01), Horiuchi
patent: 4266254 (1981-05-01), Hobrecht et al.

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