Method of making a linearity standard magnetic tape

Details Method of making a linearity standard magnetic tape Method of making a linearity standard magnetic tape

1984-12-21

1987-01-20

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Recording or reproducing plural information signals on the...

360 27, 360 31, G11B 502, G11B 2736

Patent

active

046383883

ABSTRACT:
A method of making a linearity standard magnetic tape includes the steps of providing a rotary magnetic head assembly including a pair of magnetic heads having gaps with different azimuth angles, respectively, and for recording slant tracks alternately on a magnetic tape, a circuit for supplying a first pilot signal of low frequency and a linearity standard signal of high frequency to one of the magnetic heads, and a circuit for supplying a second pilot signal of low frequency and a bias signal of higher frequency than that of the linearity standard signal to the other of the magnetic heads such that the bias signal is outside the recording or reproducing range of the heads and/or the tape.

REFERENCES:
patent: 4489354 (1984-12-01), Dann
patent: 4497000 (1985-01-01), Terada et al.

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