Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism
Patent
1992-03-26
1994-08-30
Look, Edward K.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
360 71, 360 75, G11B 1518, G11B 1700
Patent
active
053433386
ABSTRACT:
The present invention purports to provide a tape recording/reproducing apparatus capable of causing a plurality of tapes having different width respectively to travel smoothly and its cassette. The cassette positioning spring 1 gives an appropriate pressing force even in the case that the cassettes have different thicknesses, and the cassettes are respectively fixed at predetermined positions so that the lower edges of the magnetic tape 3a, 3b are positioned at the same height. The flange 9 of the guide post 12 is shifted in an up-and-down direction in response to a magnetic tape width signal detected through the cassette detecting switch 13 or the beginning edge detector 14a, or the ending edge detector 14b, so that even narrow magnetic tape 3a can travel at the predetermined height. Furthermore, by changing the inclined angle and/or the inclined direction of the movable post 10, a downward torsion force is applied to the narrow magnetic tape 3a. In this fashion, magnetic heads to be used are selected in accordance with the magnetic tape width detected by the cassette detecting switch 13 or the beginning edge and the ending edge detectors 14a, 14b.
REFERENCES:
patent: 4965683 (1990-10-01), Otani
patent: 5206771 (1993-04-01), Katou et al.
"A Study of the Behavior of Tape Running along the Rotating Drum" by D. Kato et al., Spring Meeting of Japanese Society of Electronics and Information Communication, pp. 5-55.
Isaka Haruo
Matsuura Kenji
Murata Shigeki
Sogabe Yasushi
Look Edward K.
Matsushita Electric - Industrial Co., Ltd.
Verdier Christopher
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