Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1990-01-25
1992-03-24
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360 84, G11B 553, G11B 552
Patent
active
050993755
ABSTRACT:
A rotary drum magnetic storage apparatus as four magnetic heads fixed above the periphery of the drum. Two of the heads are read heads and the other two heads are write heads. A magnetic tape contacts the periphery of the drum at a specific contact angle. The rotary drum of the magnetic head is of the small type that is less than 30 mm. To avoid overlapping of tracing periods of the heads of the storage apparatus during operation, there is a specific relationship fixed between the write heads, the read heads and the contact angle the magnetic tape makes with the drum.
REFERENCES:
patent: 3330033 (1967-07-01), Manders et al.
patent: 4040110 (1977-08-01), Bagby
patent: 4163262 (1979-07-01), Kaemmerer
patent: 4520405 (1985-05-01), Sasaki et al.
patent: 4524402 (1985-06-01), Ueda et al.
patent: 4603360 (1986-07-01), Fujiki et al.
patent: 4642711 (1987-02-01), Yunoki et al.
patent: 4821132 (1989-04-01), Hasegawa
patent: 4930031 (1990-05-01), Nagahara et al.
patent: 4939605 (1990-07-01), Heitmann et al.
patent: 5018036 (1991-05-01), Yamashita
Haikawa Yukihiko
Ishii Toshiji
Renner Craig A.
Sharp Kabushiki Kaisha
Wolff John H.
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