Helical scan type video tape recorder

Details Helical scan type video tape recorder Helical scan type video tape recorder

1980-12-09

1983-06-28

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 13, 360 66, 360 84, 360121, G11B 552, G11B 528, G11B 2702

Patent

active

043909159

ABSTRACT:
In a two-head helical scan video tape recorder, a pair of rotary erase heads are provided, and in order to avoid undesirable erasure by fringe flux, each rotary erase head integrally formed with one of two video recording heads and is positioned on a rotary member so that the scanning position thereof is always displaced from the scanning position of the associated video recording head by at least one video track interval in the scanning direction of the heads, in case of guardbandless azimuth recording.

REFERENCES:
patent: 3157739 (1964-11-01), Okamura
patent: 3342949 (1967-09-01), Wessels
patent: 3549822 (1970-12-01), Chupity
patent: 4005481 (1977-01-01), Lackner
patent: 4163262 (1979-07-01), Kaemmerer
patent: 4293880 (1981-10-01), Tsukada et al.
patent: 4306261 (1981-12-01), Bergmans et al.
patent: 4318146 (1982-03-01), Ike et al.

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