Magnetic tape recording and playback equipment for automatic che

Details Magnetic tape recording and playback equipment for automatic che Magnetic tape recording and playback equipment for automatic che

1989-08-07

1991-07-16

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Signal switching

G11B 1514

Patent

active

050329332

ABSTRACT:
A rotary scanning device of a magnetic tape recording and playback equipment, which carries a set of recording heads and a set of playback heads on its periphery is provided with one rotary transformer in addition to the number equal to the number of recording heads and to the number of playback heads of said sets. The additional rotary transformer is used for cyclically connecting its rotor to the respective playback heads during a recording operation by means of a controlled transfer switch, so that a fraction of the signals recorded by each of the recording heads is made available for an after-check which can be performed without visual display because of the digital nature of the recorded signals, which are evaluated by error recognition and word count circuits.

REFERENCES:
patent: 4887171 (1989-12-01), Rose
patent: 4930025 (1990-05-01), Oberjatzas et al.
"Standard for Recording Digital Television Signals on Magnetic Tapes and Cassettes", EBU, Tech. 3252-E.
"Fernseh-und Kinotechnik", 1987, Issue 1/2, pp. 15-22.

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