Tracking control system for magnetic video recording and reprodu

Details Tracking control system for magnetic video recording and reprodu Tracking control system for magnetic video recording and reprodu

1976-10-18

1978-11-28

Konick, Bernard

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Synchronizing moving-head moving-record recorders

360 77, 360 73, 360 75, G11B 2110, G11B 1546

Patent

active

041278810

ABSTRACT:
A tracking control system for a magnetic video recording and reproducing system, in which a signal is recorded on a magnetic tape as record tracks at an angle with respect to the longitudinal direction of the tape and is reproduced therefrom by rotary magnetic heads. At the time of start of playback, the relative phase of scanning tracks of the rotary heads and the afore-said record tracks is automatically varied at a predetermined cycle. During the period of this variation, a phase position at which a maximum value of the level of the reproduced signal from the rotary heads is detected, and the phase variation is stopped at the detected phase position so as to let the scanning tracks of the rotary heads coincide with the record tracks.

REFERENCES:
patent: 3663764 (1972-05-01), Trost
patent: 3943565 (1976-03-01), Frank

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