Rotary head type magnetic video recording and reproducing system

Details Rotary head type magnetic video recording and reproducing system Rotary head type magnetic video recording and reproducing system

1976-05-14

1978-08-01

Konick, Bernard

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Synchronizing moving-head moving-record recorders

360 77, 360 73, 318576, G11B 1546, G11B 1526

Patent

active

041046846

ABSTRACT:
A recorded signal reproducing system includes a signal generator circuit which produces a tracking control signal in response to an output from a detection circuit which detects that a difference between an output of a peak hold circuit which holds a maximum amplitude of an envelope of a reproduced signal from a rotary head for a relatively long period and an output of an envelope detection circuit exceeds a predetermined threshold. The tracking control signal is used to control the relative positional relationship between the rotary head and a magnetic tape for controlling tracking during the playback operation.

REFERENCES:
patent: 3196421 (1965-07-01), Grace
patent: 3582541 (1971-06-01), Hebb
patent: 3596007 (1971-07-01), Price
patent: 3663764 (1972-05-01), Trost
patent: 3742200 (1973-06-01), Marley

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