Reproducing apparatus

Details Reproducing apparatus Reproducing apparatus

1982-02-02

1984-04-17

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

360 64, 360 65, G11B 502, G11B 1544, G11B 1545

Patent

active

044438222

ABSTRACT:
A reproducing apparatus for information signals recorded on a record carrier in the form of a tape comprises two rotatable reproducing heads for alternately reproducing the information signals and a position encoder which supplies position pulses for determining the rotary position of the reproducing heads. A common pre-amplifier is connected to the reproducing heads, which amplifier is followed by compensation circuits associated with the two reproducing heads for signal correction, the output signal supplied by the compensation circuit associated with the reproducing head which instantaneously co-operates with the record carrier being applied to a signal processing circuit during the scanning period of the relevant reproducing head depending on the position pulses. Only one of the two compensation stages comprises an adjustable frequency-dependent network for frequency-response correction and at least one of the two compensation stages comprises a further adjustable frequency-independent network for amplitude correction. This enables the frequency response and the amplitude characteristics of the two reproducing heads to be material to each other.

REFERENCES:
patent: 3265818 (1966-08-01), Goosen et al.
patent: 3381083 (1968-04-01), Jensen et al.

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