Condition monitoring system for magnetic tape unit

Details Condition monitoring system for magnetic tape unit Condition monitoring system for magnetic tape unit

1985-02-26

1986-08-26

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Electronically correcting phasing errors between related...

G11B 2020

Patent

active

046086129

ABSTRACT:
The channel output signal from the center track read head of a magnetic tape unit clocks the side channel outputs of two other read heads through a logic circuit to operate a skew status indicator. The same center channel signal provides tape speed information displayed by a speed status indicator, while the amplitude condition of all channel outputs are displayed by amplitude status indicators. All indicators register a correct or acceptable condition and an incorrect condition as well as the directional deviation of the incorrect condition.

REFERENCES:
patent: 3103000 (1963-09-01), Newman et al.
patent: 3508231 (1970-04-01), Levin
patent: 3728679 (1973-04-01), McIntosh
patent: 3800280 (1974-03-01), Heffner
patent: 3839728 (1974-10-01), Milne
patent: 4023203 (1977-05-01), Baba et al.
patent: 4074332 (1978-02-01), Innes
"Adjusting Mechanical & Electrical Skew", by E. Wojtczak, IBM TDB, vol. 15, #3, 8/72.

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