Multi-speed magnetic recorder with wear resistance playback head

Details Multi-speed magnetic recorder with wear resistance playback head Multi-speed magnetic recorder with wear resistance playback head

1980-10-03

1983-06-07

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 62, 360122, G11B 560, G11B 522

Patent

active

043874088

ABSTRACT:
A magnetic tape recorder of the type wherein tape is transported at high speed during recording and at low speed during playback is described. The recorder has separate record and playback heads. To prevent the shallow-gapped playback head from being worn out by, and during, the high speed recording operation, the playback head is disposed to fly the tape at an appreciable distance from the playback head. During low speed playback of the tape, however, tape flight vis-a-vis the playback head is desirably miniscule.

REFERENCES:
patent: 3323116 (1967-05-01), Solyst
patent: 3525987 (1970-08-01), Muijderman
patent: 3582917 (1971-06-01), Hertrich et al.
patent: 3614579 (1971-10-01), Fulton
patent: 3678482 (1972-07-01), Billawala
patent: 3732552 (1973-05-01), Walraven
patent: 3813687 (1974-05-01), Geil
patent: 3821813 (1974-06-01), Freeman et al.
patent: 4086635 (1978-04-01), Saitou
patent: 4146911 (1979-03-01), Gyi et al.
"Television and Lunar Exploration", S. W. Spaulding, Journal of the SMPTE, vol. 69, Jan. 1960, p. 39.
"Experimental & Theoretical Investigation of Head to Tape Separation in Magnetic Recordings", IEEE Transactions on Magnetics, vol. MAG-9, No. 4, Dec. 1973, pp. 683-688.

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