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Primary Examiner: Canney, Vincent P.
Assistant Examiner:
Attorney: Sughrue, Rothwell, Mion, Zinn and Macpeak

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Title: Digital magnetic data storage and retrieval using audio analog recording techniques

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.

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Inventors: Sampey, Harry R. (Vanderbilt, PA, US)

Application Number: 873543
Filing Date: 1978-01-30
Publication_date: 1980-05-06
Assignee:
Primary Class(es): 360/40 360/41, 360/46
Other Classes:
US Patent Ref:

3376566	Apr, 1968	Coccagna	360/41.
3562724	Feb, 1971	Adler et al.	360/41.
3725885	Apr, 1973	Anderson	360/42.
3840891	Oct, 1974	Hellwerth	360/40.

Other Refs: Other References: "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.