Recording medium for recording and/or reproducing apparatus

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record

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358906, G11B 5004

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active

046046674

ABSTRACT:
A recording medium is used in a recording and/or reproducing apparatus comprising a rotational motor and a recording and/or reproducing circuit. The recording medium comprises a main body having a substantially cylindrical part, and a hollow part open at least at one end thereof, a recording surface formed at least on a peripheral surface of the cylindrical part, and a coupling part provided at the main body and to be coupled to the motor. The recording medium is loaded into the recording and/or reproducing apparatus in a state where at least a part of the motor is relatively inserted into the hollow part.

REFERENCES:
patent: 2251680 (1941-09-01), La Forest
patent: 3145386 (1964-08-01), Wadey et al.
patent: 3697968 (1972-10-01), Low
patent: 3747080 (1973-07-01), Taylor
patent: 4241405 (1980-12-01), Allocca
patent: 4412260 (1983-10-01), Stricklin
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; D. D. 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 and JP-A-54 99 609.
Patent Abstracts of Japan, vol. 4, No. 184 (P-41) 666 Dec. 18, 1980, and JP-A-55 125 585.

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