Magnetic playback apparatus having immunity to skew

Details Magnetic playback apparatus having immunity to skew Magnetic playback apparatus having immunity to skew

1980-06-26

1982-05-18

Kilgore, Robert M.

Dynamic magnetic information storage or retrieval

Head

Gap spacer

360 10, G11B 525, H04N 578

Patent

active

043308074

ABSTRACT:
By dimensioning a magnetic playback head so that it coacts with a magnetic signal track having an effective width that is less than one half the shortest signal wavelength to be played back divided by the tangent (or sine) of a predetermined magnetic skew angle that may be experienced by the head, skew angles less than the maximum skew angle will have no effect on the playback of signals having wavelengths greater than said shortest wavelength.

REFERENCES:
patent: 3984874 (1976-10-01), Mano
patent: 4086639 (1978-04-01), Toshimitsu
patent: 4101937 (1978-07-01), Jenkins
patent: 4193098 (1980-03-01), Bixby
patent: 4258398 (1981-03-01), Bixby
Beguns, S. J.-Magnetic Recording, pub. by Murray Hill Books, 1949, pp. 87-88.
Stewart, W. E.-Magnetic Recording Techniques, Pub. by McGraw-Hill, 1958, pp. 73-76.
Snel, D. A.-Magnetic Sound Recording, Pub. by Philips Technical Library (Netherlands), 1959, pp. 83-84.
Haynes, N. M. Elements of Magnetic Tape Recording, Pub. by Prentice-Hall, 1957, pp. 139-141.

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