Magnetic reproducing device
AssigneeSony Corporation
InventorsSatoshi Goto, Junji Takiguchi, Kiyoshi Tada
Life of this patent
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Abstract
A magnetic reproducing device which includes a signal detecting means for detecting a signal from a magnetic recording medium by a coil, an amplifying means for amplifying the signal detected by the signal detecting means, a filtering means for filtering the signal amplified by the amplifying means, and a capacitor connected in parallel to the coil of the signal detecting means. In this device, the actual resonance frequency of a resonance circuit including the coil, the capacitor and a floating capacitance is set to be four to eight times the maximum reproduced frequency, thereby attenuating the high-frequency high-energy electromagnetic noise inputted to the magnetic reproducing device.
Claims5
A magnetic reproducing device comprising:
- a signal detecting means for detecting a signal from a magnetic recording medium by a coil;
- an amplifying means for amplifying the signal detected by said signal detecting means;
- a filtering means for filtering the signal amplified by said amplifying means;
- and
- a capacitor connected in parallel to the coil of said signal detecting means;
- wherein the actual resonance frequency of a resonance circuit including said coil, said capacitor and a floating capacitance is set to be four to eight times the maximum reproduction frequency.
Dependencies are inferred from the claim text.