Rotary head drum

Details Rotary head drum Rotary head drum

1991-12-27

1993-05-18

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Head accessory

360 84, G11B 1561, G11B 5027

Patent

active

052126137

ABSTRACT:
A rotary head drum having at least one stabilizer installed in a magnetic tape recording and/or reproducing apparatus is described, in which at least one stabilizer is provided to bring about the stability of the traveling of a tape which travels while in contact with the circumferential surface of a drum. The stabilizer has a circular plane of a predetermined diameter, and the circular plane is mounted in a lower fixed drum to be partially in contact with the tape, thereby rotating with the tape at the same linear velocity. The tape only slightly vibrates while traveling in contact with the stabilizer, and travels with stability. Noise due to jitter, wow and flutter caused by the tape vibration is eliminated in the picture and sound. This rotary head drum is utilized in a video cassette recorder, digital audio tape recorder, etc.

REFERENCES:
patent: T941022 (1975-12-01), Freeman et al.
patent: 4249222 (1981-02-01), Iwasaki
patent: 4833562 (1989-05-01), Kochi et al.
patent: 4896236 (1990-01-01), Usui et al.
patent: 4977473 (1990-12-01), Arai et al.

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