Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Synchronizing moving-head moving-record recorders
Patent
1987-07-22
1990-02-27
Psitos, Aristotelis M.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Synchronizing moving-head moving-record recorders
360 8, 360 32, 360 7305, 360 64, G11B 2104, G11B 552, G11B 509
Patent
active
049051040
ABSTRACT:
A rotary head type digital signal recording and/or reproducing apparatus wherein for 1/2 speed recording and/or reproducing from a magnetic tape, a tape feed speed is decreased to 1/2 times the normal speed, and a recording/reproducing interval becomes 2 times that of the normal mode of operation utilizing at least two rotary heads mounted at adjacent positions on a rotating cylinder with one of the rotary heads having a plus azimuth angle and the other having a minus azimuth angle. For 2 times speed recording/reproducing, a tape feed speed increases to 2 times the normal speed, and a recording/reproducing interval becomes 1/2 that of the normal mode of operation utilizing at least two rotary heads mounted on a rotating cylinder at opposite positions of a rotary axis of the cylinder, with one of the two rotary heads having a plus azimuth angle and the other having a minus azimuth angle.
REFERENCES:
patent: 4594621 (1986-06-01), Noguchi et al.
patent: 4597023 (1986-06-01), Rijckaert
Kobayashi Masaharu
Nakama Taihei
Noguchi Takaharu
Okamoto Hiroo
Garland Steven R.
Hitachi , Ltd.
Psitos Aristotelis M.
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