Dynamic magnetic information storage or retrieval – Record transport with head moving during transducing – Drum record
Patent
1982-10-25
1986-01-28
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record transport with head moving during transducing
Drum record
360100, 360107, 358906, G11B 5004, G11B 1900
Patent
active
045675350
ABSTRACT:
A recording and/or reproducing apparatus is loaded with a recording medium which comprises a substantially cylindrical part, a hollow part at least open at one end thereof, and a recording surface formed at least on a peripheral surface of the cylindrical part. The apparatus comprises a rotational motor having at least one part thereof relatively inserted within the hollow part of the recording medium which is loaded, to be coupled to the recording medium, a recording and/or reproducing transducer for recording and/or reproducing an information signal onto and/or from the recording surface of the recording medium which is rotated by the motor, and a feeding circuit for feeding the recording and/or reproducing transducer along the recording surface.
REFERENCES:
patent: 2251680 (1941-09-01), La Forest
patent: 3134969 (1964-05-01), Taft
patent: 3145386 (1964-08-01), Wadey
patent: 3697968 (1972-10-01), Low
patent: 3747080 (1973-07-01), Taylor
patent: 4241405 (1980-12-01), Allocca
patent: 4420773 (1983-12-01), Toyoda
IBM TDB; vol. 13, No. 11, Apr. 1971, p. 3388; Truncated Cone Storage Device; H. E. Amrine & D. F. Dean.
IBM Technical Disclosure Bulletin, vol. 11, No. 10, Armonk, N.Y. USA; DD Decker; "Magnetic Disc Retainer"--Mar., 1969.
IBM Technical Disclosure Bulletin, vol. 19, No. 7, pp. 2684-2685, Armonk, N.Y. (USA) 9/5/41.
Patents Abstracts of Japan, vol. 3, No. 121 (E-143), Oct. 11, 1979, pp. 157 E 143 & JP-A-54 99 609.
Patents Abstracts of Japan, vol. 4, No. 184, (P-41) 666, Dec. 18, 1980, & JP-A-55 125 585.
IBM Technical Disclosure Bulletin, vol. 13, No. 11, Apr. 1971 "Truncated Cone Storage Device" H. E. Armine and D. F. Dean.
Heinz A. J.
Victor Company of Japan Ltd.
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