Multichannel digital magnetic recording apparatus

Details Multichannel digital magnetic recording apparatus Multichannel digital magnetic recording apparatus

1983-03-15

1985-12-31

Cardillo, Jr., Raymond F.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

360 46, 360 63, G11B 509

Patent

active

045624917

ABSTRACT:
A multichannel digital magnetic recording apparatus comprises a plurality (N) of modulating circuits (41 to 4N) and timing circuits (51 to 5N). Digital signals (Z1 to ZN) undergo modulation in the modulating circuits in accordance with a modulation system of a detection window Tw. The modulated signals (A1 to AN) are converted into pulse current trains by the timing circuits and then delayed such that the respective pulse currents do not occur simultaneously. Accordingly, a power capacity required of a voltage source for writing the signals by means of thin film magnetic heads (71 to 7N) is considerably decreased.

REFERENCES:
patent: 12264 (1878-12-01), Lewkowicz
patent: 3199094 (1965-08-01), Bakshi
patent: 3975764 (1976-08-01), Kobayashi et al.
patent: 4437128 (1984-03-01), Sapkowski

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