Still image reproducing apparatus

Details Still image reproducing apparatus Still image reproducing apparatus

1983-08-24

1986-06-10

Faber, Alan

Dynamic magnetic information storage or retrieval

Record editing

360 77, G11B 2110

Patent

active

045946159

ABSTRACT:
Apparatus for controlling tracking position of a magnetic head for reproducing signals recorded as a series of slanted parallel tracks on a magnetic tape, the parallel tracks contain a video signal and a pilot signal of mutually different frequencies that change cyclically from track-to-track. A reference pilot signal having the same frequency as the frequency of the pilot signal reproduced from the track is generated, and the frequency of the reference pilot signal associated with one track is subtracted from the frequency of the pilot signals reproduced from the tracks adjacent the one track, so as to produce a control signal indicative of head displacement relative to the one track to be reproduced. In a still picture reproducing mode, first and second reference pilot signals are alternately generated that have the same frequency as the pilot signals that were recorded in the pair of tracks to be reproduced in the still picture mode.

REFERENCES:
patent: 4297733 (1981-10-01), Sanderson
patent: 4309730 (1982-01-01), Sanderson
patent: 4439799 (1984-03-01), Haubrich

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