Dynamic magnetic information storage or retrieval – Record editing
Patent
1981-08-28
1984-11-27
McElheny, Jr., Donald E.
Dynamic magnetic information storage or retrieval
Record editing
360 70, 360 75, H04N 5782, H04N 5783
Patent
active
044854145
ABSTRACT:
A method and apparatus for accurately positioning a transducing means along a desired path for recording parallel tracks of information being transmitted at varying rates. The apparatus also is arranged to control the transducing means so that accurately follows the tracks during reproducing at various tape transport speeds. In a magnetic recording/reproducing apparatus having transducing means operably supported by rotation means for scanning a magnetic tape along a plurality of adjacent sets of tracks, the rotation means including movable means carrying the transducing means and in response to electrical signals effecting movement of the transducing means in opposite directions from a home position in which the movement is generally transverse to the direction of the sets of tracks, wherein the improvement includes the signal producing means being operable to produce signals in response to the transverse position data for positioning the transducing means to either accurately simultaneously record a set of tracks along a desired path or simultaneously reproduce from the tracks and, during recording, to record additional sets of tracks subsequent to the completion of the preceding set of tracks along paths parallel to the selected path, the selected path being determined as a function of the speed and direction of transport of the tape.
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Johnson, "Video Color Recording System", IBM Tech. Disc. Bul., vol. 9, No. 11, Apr. 1967, pp. 1584-1585.
Ampex Corporation
McElheny Jr. Donald E.
Mossino Ralph L.
Talcott Joel D.
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