Dynamic magnetic information storage or retrieval – General recording or reproducing – Signal switching
Patent
1994-01-13
1994-10-25
Hajec, Donald
Dynamic magnetic information storage or retrieval
General recording or reproducing
Signal switching
360 7305, G11B 1514, G11B 1546
Patent
active
053594711
ABSTRACT:
In a rotary head type recording and/or reproducing apparatus having an n number (n: an integer at least 3) of rotary heads for recording or reproducing signals on or from a recording medium, when the recording medium is allowed to travel at a first speed, a signal is recorded or reproduced by using all the n number of rotary heads. When the recording medium is allowed to travel at a second speed which is lower than the first speed, a signal is recorded or reproduced by using only a predetermined m number (m: an integer at least 2 but not exceeding n) of adjacent heads. A distance on the recording medium between tracing positions of adjacent heads included in the predetermined m number of heads when the medium is traveling at the first speed differs from a distance on the recording medium between tracing positions of other adjacent heads included in the n number of rotary heads.
REFERENCES:
patent: 4293880 (1981-10-01), Tsukada et al.
patent: 4491878 (1985-01-01), Toba
patent: 4862292 (1989-08-01), Enari et al.
patent: 4897739 (1990-01-01), Hasegawa et al.
patent: 5063453 (1991-11-01), Yoshimura et al.
Canon Kabushiki Kaisha
Hajec Donald
Kim Won Tae C.
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