Rotary head type recording apparatus having an erasing function

Details Rotary head type recording apparatus having an erasing function Rotary head type recording apparatus having an erasing function

1988-11-23

1989-11-07

Faber, Alan

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

360 61, 360 64, G11B 502, G11B 1514

Patent

active

048796093

ABSTRACT:
A rotary head type recording apparatus according to the present invention can record information signals on a tape-shaped magnetic recording medium based on a plurality of kinds of recording modes in which track pitches are different from each other, and the track pitches of the recording tracks formed on the taped-shaped magnetic recording medium are varied depending on the kinds of the recording modes and at the same time a pattern of a signal-for-erasion supplied to a rotary type erasing head with wider width in the direction perpendicularly crossing a tracing direction of the head than that of a rotary type magnetic head is varied depending on the kinds of the recording modes, so that the undesirable influence of the signal-for-erasion over the recording of the information signals is reduced and at the same time power consumption is also reduced.

REFERENCES:
patent: 4274116 (1981-06-01), Ida
patent: 4300174 (1981-11-01), Harmon et al.
patent: 4486792 (1984-12-01), Edakubo et al.
patent: 4520405 (1985-05-01), Sasaki et al.
patent: 4616273 (1986-10-01), Ishii et al.
patent: 4622614 (1986-11-01), Yamashita et al.
patent: 4656533 (1987-04-01), Sakai et al.

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