Magnetic marker for locating a splice within magnetic tape

Details Magnetic marker for locating a splice within magnetic tape Magnetic marker for locating a splice within magnetic tape

1980-02-29

1982-04-13

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Record editing

360 27, 360134, G11B 2702, G11B 502, G11B 578

Patent

active

043250874

ABSTRACT:
A method of locating a splice within an endless loop of magnetic tape by detecting the presence of a magnetic marker attached to the magnetic recording tape wherein the magnetic marker is comprised of a magnetic layer having a flux density of at least 0.05 line of flux per centimeter of width, a thickness of not greater than 60 microns, and a coercivity of at least 1,000 oersteds, and which has a detectable magnetic pattern recorded thereon.

REFERENCES:
patent: 3419687 (1968-12-01), Stewart
patent: 3508989 (1970-04-01), Lawrence et al.
patent: 3566356 (1971-02-01), Holm et al.
patent: 3614756 (1971-10-01), McIntosh et al.
patent: 3752937 (1973-08-01), Mori et al.
patent: 3761311 (1973-09-01), Perrington et al.
patent: 4054924 (1977-10-01), Zimmermann
patent: 4090662 (1978-05-01), Fayling
patent: 4230909 (1980-10-01), Baum

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