Rotary head type recording apparatus using rotary erasing head

Details Rotary head type recording apparatus using rotary erasing head Rotary head type recording apparatus using rotary erasing head

1986-10-21

1989-04-11

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 66, 360 84, 360107, G11B 502

Patent

active

048211320

ABSTRACT:
A rotary head type recording apparatus includes a rotary head member having four rotary heads and a rotary erasing head, a rotary transformer member having an erasing coil which is connected to the rotary erasing head and four recording coils which are respectively connected to the four rotary heads, wherein the erasing coil and the four recording coils lie in a common surface of the rotary transformer member and the erasing coil is arranged so that two of the four recording coils are on each side of the erasing coil. A recording device supplies recording signals to the four recording coils to record the recording signals on a recording medium by use of the four recording coils and an erasing device supplies an erasing signal to the erasing coil to erase signals recorded on the recording medium by use of the erasing head. The erasing device does not supply the erasing signal to the erasing coil when the recording device is supplying recording signals to at least one of two recording coils arranged adjacent to and on opposite sides of the erasing coil.

REFERENCES:
patent: 4520405 (1985-05-01), Sasaki et al.
patent: 4614985 (1986-09-01), Tsuruta
patent: 4639805 (1987-01-01), Hirota et al.

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