Method for recording multiplexed signals on metal evaporated tape
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsSadafumi Kitamura, Hiroshi Taniguchi
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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.
Claims6
A magnetic recording method for recording a multiplex signal comprising two principal signals, comprising the steps of:
- using a magnetic recording medium having a magnetic layer with the thickness which is smaller than a recorded wavelength of each of said two principal signals;
- recording one of said principal signals having a higher frequency than that of the other signal at a current which is more than 2 dB greater 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 1 dB beyond said saturated condition;
- and
- recording said other principal signal of a lower frequency at a current which is smaller than one half of that of said signal of a higher frequency.
Dependencies are inferred from the claim text.