Magnetic tape recording apparatus

Details Magnetic tape recording apparatus Magnetic tape recording apparatus

1990-10-26

1992-06-23

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

360 191, G11B 509

Patent

active

051248522

ABSTRACT:
A digital audio signal is subjected to predetermined modulation using a predetermined carrier, and thereby the digital audio signal is converted into a modulated digital audio signal. An FM audio signal is generated. The modulated digital audio signal and the FM audio signal are combined into a composite audio signal. The composite audio signal is superimposed on a high-frequency bias signal, and thereby the composite audio signal is converted into a final modulated audio signal. The final modulated audio signal is recorded into a magnetic tape. A predetermined basic signal is generated. The predetermined carrier and the bias signal are generated from the basic signal. The predetermined carrier and the bias signal have a predetermined frequency relation which is chosen in dependence upon a frequency of beats caused by cross modulation between the modulated digital audio signal and the bias signal.

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