Method for recording multiplexed signals on metal evaporated tap

Details Method for recording multiplexed signals on metal evaporated tap Method for recording multiplexed signals on metal evaporated tap

1981-03-23

1983-04-19

Psitos, Aristotelis M.

Facsimile and static presentation processing

Facsimile

Recording apparatus

360 66, 360131, 360134, H04N 9491, H03F 100, H03G 320, H03G 516

Patent

active

043807798

ABSTRACT:
A magnetic recording method for recording a multiplex signal having two different frequency signals. A magnetic recording medium is used having a magnetic layer with a thickness which is smaller than a recorded wavelength of each of said two signals. The signal of a higher frequency is recorded at a current which is more than 2dB larger than the lower limit of the recording current with which a reproduced output level is saturated, and which is smaller than a current with which the reproduced output level is reduced by 1dB beyond said saturated condition. The signal of a lower frequency is recorded at a current which is smaller than one half of that of the signal of a higher frequency.

REFERENCES:
patent: 2734941 (1956-02-01), Zenzel
patent: 2892017 (1959-06-01), Houghton
patent: 3864729 (1975-02-01), Camras
patent: 3893163 (1975-07-01), Wessels et al.
patent: 4172171 (1979-10-01), Suzuki et al.

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