Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1997-06-30
1999-09-07
Renner, Craig A.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
36013023, 360 84, G11B 5588, G11B 1561
Patent
active
059496215
ABSTRACT:
The magnetic recording/reproducing apparatus of the present invention performs a fast forward reproduction, a fast backward reproduction, a still picture reproduction and the time-lapse recording. To correct for noise-bar the magnetic heads mounted on an upper drum are deviated from intended tracks depending on a difference in tape running speed between a recording operation and a reproducing operation. This is accomplished by tilting the upper drum about a predetermined pivot point with respect to a lower drum having a lead formed thereon. A preferred reproduced image containing no noise-bar is achieved even for a signal recorded in a narrow track pattern in an extended time recording mode, by correcting a slight separation of the magnetic tape from the lead due to a tilt of the upper drum, caused by tilting the lower drum.
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"Magnetic Recording and Reproducing Device", Japanese Patent Abtract of 03-216849, published to Otsuka, Dec. 1991.
Hirayama Hiromichi
Kinjo Hisao
Meller Michael N.
Renner Craig A.
Victor Company of Japan Ltd.
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