Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1982-06-02
1985-01-29
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
330190, 336123, G11B 552
Patent
active
044970048
ABSTRACT:
A picture reproducing apparatus for a helical scanning video tape recorder including an impedance transformer; a video head connected to the input of the impedance transformer; a resonance circuit connected to the output of the impedance transformer; a pre-amplifier connected to the output of the resonance circuit; a feedback resistor connected between the junction of the pre-amplifier and resonance circuit and the output of the pre-amplifier; and an output terminal connected to the output of the pre-amplifier. The impedance transformer has the output impedance four times as high as the input impedance thereof.
REFERENCES:
patent: 4096535 (1978-06-01), Highnote
patent: 4139871 (1979-02-01), Yoshida
patent: 4212042 (1980-07-01), Kosheler
Hirose Koichi
Kojima Noboru
Komatsu Keiichi
Konosu Makoto
Miura Kuniaki
Heinz A. J.
Hitachi , Ltd.
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