Method of operating a signal reproducing apparatus for effecting

Details Method of operating a signal reproducing apparatus for effecting Method of operating a signal reproducing apparatus for effecting

1979-04-09

1981-12-29

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Record editing

360 73, 360 77, H04N 578, G11B 2110, G11B 1518

Patent

active

043085601

ABSTRACT:
A method of operating a signal recording and reproducing apparatus is disclosed whereby generally continuously and noise-free transfers of signal information are obtained while reproducing the information from a magnetic tape being transported at a changing speed. The apparatus is of the type which utilizes transverse positioning of the transducing head to accurately follow a track during reproducing. While the tape is transported at speeds other than the normal record and reproduce speed, transport derived signals are employed to control the tape transport servo. When the normal speed is attained, the reproduced signal is detected to determine whether synchronous reproduction conditions have been achieved. If synchronous reproduction conditions are not achieved, the transducing head is moved to a new track to effect synchronous reproduction of the signal information. After synchronous reproduction of the signal information has been achieved, tape control track derived signals are employed to control the tape transport servo.

REFERENCES:
patent: 3663763 (1972-05-01), Trost
patent: 3699247 (1972-10-01), Mashima
patent: 3869709 (1975-03-01), Yamagishi et al.
patent: 4148083 (1979-04-01), Watanabe
patent: 4151570 (1979-04-01), Ravizza et al.
patent: 4167763 (1979-09-01), Kubota

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