Tracking-error correcting system in a video reproducing apparatu

Details Tracking-error correcting system in a video reproducing apparatu Tracking-error correcting system in a video reproducing apparatu

1981-10-06

1984-05-29

Stellar, George G.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 558

Patent

active

044518609

ABSTRACT:
A tracking-error correcting system in a rotary head magnetic recording and reproducing apparatus in which the reproducing magnetic heads can move in the direction of their axis of rotation by using a bi-morph leaf having piezoelectric elements. This system can automatically detect the tracking-error between the reproducing head and a recorded track, and move the reproducing head in a direction to attain better tracking position while the head is not in contact with the magnetic tape, so that either head's scanning trace is always parallel to the recorded track. The system is protected from jitter or color flicker on the monitor television screen when the heads move in the direction of their axis of rotation.

REFERENCES:
patent: 4148083 (1979-04-01), Watanabe
patent: 4167763 (1979-09-01), Kubota
patent: 4197565 (1980-04-01), Watanabe

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