Digital magnetic data storage and retrieval using audio analog r

Details Digital magnetic data storage and retrieval using audio analog r Digital magnetic data storage and retrieval using audio analog r

1978-01-30

1980-05-06

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

In specific code or form

360 41, 360 46, G11B 509

Patent

active

042020166

ABSTRACT:
Method and apparatus are disclosed for storing and recovering a digital signal indicative of digital data wherein an audio cassette tape recorder is used to record, in analog form, digital data. The playback signal is processed through circuitry to produce one signal indicative of positive peaks in the playback signal, and a second signal indicative of negative peaks. The set and reset terminals of a flip-flop are responsive respectively to the latter two signals so as to reconstruct the original data signal at the output of the flip-flop.

REFERENCES:
patent: 3376566 (1968-04-01), Coccagna
patent: 3562724 (1971-02-01), Adler et al.
patent: 3725885 (1973-04-01), Anderson
patent: 3840891 (1974-10-01), Hellwerth
"Byte"--Feb. 77, vol. 2, #2, pp. 24-31 & 82-85.
"Byte"--Jan. 77, vol. 2, #1, pp. 34-41.
"Low Cost Stereo Recorders Can Adapt to Digital Data" by Newton et al., Electronics vol. 43, #14, 7/70.

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