Recording/reproducing device with means for switching inductance

Dynamic magnetic information storage or retrieval – General processing of a digital signal – Head amplifier circuit

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360 67, G11B 517, G11B 502

Patent

active

047928689

ABSTRACT:
A recording/reproducing device for use in a floppy disk apparatus. The device has a first coil and a second coil, both wound arond a common core. The coils are connected to each other at one end, and have taps, respectively. Both coils have characteristics optimized for data-reading. A read circuit is connected to the second ends of the coils. A write circuit is connected to the taps of the coils. The write circuit writes data on a recording medium by using that portion of the first coil which extends between the tap of the first coil and the connection point between the coils, and that portion of the second coil which extends between the tap of the second coil and the connection point between the coils.

REFERENCES:
patent: 2933721 (1960-04-01), Hagopian
patent: 3248717 (1966-04-01), Mayhew
patent: 3881194 (1975-04-01), Heaslett et al.
patent: 4249219 (1981-02-01), Aoi et al.
patent: 4402027 (1983-08-01), Nakamura et al.
patent: 4480275 (1984-10-01), Fawkes
patent: 4651235 (1987-03-01), Morita et al.

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